Foldable Pet Feces Pickup Device Rigid Linkage Mechanism

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Solution Overview

Problem

Existing foldable pet feces pickup devices face issues such as rope wear-off, breakage, and repair inconveniences, which limit their service life and usability.

Innovation Solution

A foldable pet feces pickup device with an operating stick to control the opening and closing of picking-up plates, incorporating a linkage accessory and locking button for easy operation and maintenance, eliminating the need for rope repair and replacement, and allowing for compact storage and transport.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a rope-based linkage mechanism is used to control the picking-up plates, then the device can achieve foldable functionality, but the rope is prone to wear-off, breakage, and requires frequent repair and replacement

Engineering Contradiction:
Improvefoldable functionalityVSAvoidrope durability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent replaces the traditional rope-based flexible linkage mechanism with a rigid bar linkage mechanism. The operating sticks, connecting rods, and linkage accessories form a rigid mechanical structure that maintains the foldable functionality while eliminating the wear and breakage issues associated with ropes. This substitution of mechanical elements resolves the contradiction between adaptability and reliability.

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

2Ease of operation

If the picking-up plates are directly controlled by operating sticks through linkage accessories, then the operation and maintenance become easy, but the device structure becomes more complex

Engineering Contradiction:
Improveoperation convenienceVSAvoidlinkage mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent divides the control mechanism into segmented components: operating sticks, linkage accessories, connecting rods, and picking-up plates. Each component performs a specific function and can be independently assembled or maintained. This segmentation allows for easier operation and maintenance while managing the overall structural complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The linkage mechanism incorporates dynamic elements including springs for automatic return, rotating shafts for motion conversion, and telescopic capability for folding. These dynamic features enable the device to transition between extended and folded states while maintaining operational simplicity through spring-assisted automatic return of the picking-up plates.

Inventive Principle:
Principle #15Dynamics

3Volume of moving object

If the device is designed to be foldable for compact storage, then storage space is reduced, but the structural complexity increases

Engineering Contradiction:
Improvestorage volumeVSAvoidfolding mechanism complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The patent implements a nesting design where the picking-up plates can be folded into a compact configuration. The linkage accessories and connecting rods are designed to telescope or nest together when not in use, reducing the overall storage volume. The operating sticks can be positioned in a retracted state, allowing the entire device to occupy minimal space during storage or transport.

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 solution extends the product life of the device, simplifies operation and maintenance, reduces storage space requirements, and lowers transportation and warehousing costs by enabling direct control of the picking-up plates and easy folding for storage.

Implementation Method 1

springs

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9163370B2Foldable pickup device
Publication Date: 2015.10.20 APOLLO INVESTMENT HLDG CO
  • US9163370B2 patent drawing
  • US9163370B2 patent drawing
  • US9163370B2 patent drawing

AI summary

A foldable pet feces pickup device includes a handle, upper operating stick, and a lower operating stick. The device further includes a linkage accessory connecting the upper operating stick to the lower operating stick. The linkage accessory has an elongated shape with round convex parts. The device further includes a pair of picking-up members for picking up an object; and a shaft connecting the lower operation stick and the pair of picking-up members. If the upper operating stick is moved toward the handle, the pair of picking-up members moves away from each other to open. If the upper operating stick is moved away from the handle, the pair of picking-up members moves toward each other to close. The device is foldable at the linkage portion.