Camera Sliding Rail Structure With Wear-Resistant Guide Rod Interface

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Solution Overview

Problem

Photographic sliding rails experience significant wear and noise due to sliding friction between the sliding base and the base, often exacerbated by burrs or uneven contact surfaces, leading to potential structural damage and operational issues.

Innovation Solution

An electrically controlled sliding apparatus with a guide rod, wear-resistant member, and conductive slip ring design that minimizes direct contact between the sliding seat and guide rod, using a wear-resistant member to prevent wear and a conductive slip ring for stable electrical connections, eliminating the need for separate batteries and ensuring precise synchronization of motion coordination signals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the sliding seat directly contacts the guide rod, then the structure is simple, but the guide rod and sliding seat suffer from significant wear and noise

Engineering Contradiction:
Improvestructure simplicityVSAvoidwear resistance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

A wear-resistant member is introduced as an intermediary component between the sliding seat and the guide rod. This wear-resistant member is fixed to the sliding seat and slides along the guide rod, preventing direct contact between the sliding seat and guide rod, thereby reducing wear and noise while maintaining structural simplicity

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the sliding seat repeatedly slides on the base, then the camera can be positioned at different angles, but significant wear and noise occur due to sliding friction

Engineering Contradiction:
Improvecamera positioning capabilityVSAvoidsliding friction and noise
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The wear-resistant member acts as a mediator that reduces sliding friction between the sliding seat and guide rod. It is designed with appropriate material properties to minimize friction and noise while enabling repeated sliding operations for camera positioning at different angles

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If burrs or uneven areas exist on the contact surface, then manufacturing is easier, but the base suffers from significant wear when repeatedly contacted

Engineering Contradiction:
Improvecontact surface fabricationVSAvoidbase wear resistance
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The wear-resistant member serves as a protective intermediary that contacts the guide rod instead of the base. This transfers the wear to the wear-resistant member which can be easily replaced, while protecting the base from wear even when burrs or uneven areas exist on contact surfaces

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The wear-resistant member is designed as a consumable component that can be easily replaced when worn. This allows the use of simpler manufacturing processes for the base while maintaining long-term reliability through periodic replacement of the wear-resistant member

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 solution prevents wear and noise, ensures stable electrical connections, and maintains precise synchronization of motion coordination signals, enhancing the operational reliability and efficiency of photographic equipment.

Implementation Method 1

there is sliding friction at the sliding contact between the sliding base and the base

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

a conductive slip ring comprising a rotating part and a fixed part which are rotatably connected, the rotating part being in sliding contact with and electrically connected to the fixed part

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentEP4711661A1Photographic equipment and electrically controlled sliding apparatus thereof
Publication Date: 2026.03.18 ZHONGSHAN DASHAN PHOTOGRAPHIC EQUIP
  • EP4711661A1 patent drawingFigure 1
  • EP4711661A1 patent drawingFigure 2
  • EP4711661A1 patent drawingFigure 3

AI summary

An electrically controlled sliding apparatus for photographic equipment includes a base, a sliding seat, and a wear-resistant member. The base is equipped with at least one guide rod. The sliding seat is slidably sleeved on an outer peripheral side of the guide rod. The wear-resistant member is fixedly mounted on the sliding seat; the wear-resistant member is slidably sleeved on an outer peripheral side of the guide rod , and the wear-resistant member is arranged between the guide rod and the sliding seat. Due to the wear-resistant member moving relative to the base with the sliding seat, and the wear-resistant member being spaced between the guide rod and the sliding seat, direct contact between the guide rod and the sliding seat is avoided, thereby preventing the sliding seat or guide rod from being worn.