Compact Locking Structure for Multi-Functional Vegetable Cutter

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Solution Overview

Problem

Existing vegetable cutters with locking mechanisms require a handle with a grip cavity, increasing their longitudinal dimension, necessitating a more compact locking structure for convenient storage and operation.

Innovation Solution

A locking structure for a multi-functional vegetable cutter featuring a sliding bracket with a chute, a locking block, and a cam mechanism that allows for compact design without relying on a hollow cavity, utilizing a reset mechanism and cam edges to transition between locked and unlocked states, and a conversion handle for easy operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a handle with a grip cavity is used for locking, then the locking function is achieved, but the longitudinal dimension of the vegetable cutter increases

Engineering Contradiction:
Improvelocking functionVSAvoidlongitudinal dimension
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The locking mechanism transitions from a longitudinal grip cavity design to a lateral locking block design. The locking block extends horizontally from the sliding bracket to engage with the housing, changing the locking action from a longitudinal handle grip to a lateral extension and engagement mechanism. This dimensional shift eliminates the need for a deep grip cavity while maintaining reliable locking functionality.

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

Solution Approach 2:

The locking mechanism is divided into separate functional components: a sliding bracket for movement, a locking block for engagement, and a cam for actuation. This segmentation allows each component to perform its specific function efficiently without requiring a large integrated grip cavity, thereby reducing the overall longitudinal dimension while maintaining locking reliability.

Inventive Principle:
Principle #1Segmentation

2Volume of moving object

If a locking block with cam mechanism is used, then the space occupied is reduced, but the device complexity increases

Engineering Contradiction:
Improvespace occupiedVSAvoidstructure complexity
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The cam mechanism serves multiple functions: it actuates the locking block for locking/unlocking, provides mechanical advantage for easy operation, and guides the locking block's movement path. This multi-functionality reduces the need for separate components, thereby minimizing space occupation while keeping the overall device complexity manageable through functional integration.

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

Solution Approach 2:

The reset mechanism automatically returns the locking block to its initial position after locking/unlocking action, eliminating the need for manual resetting. The cam's rotational geometry self-guides the locking block through its movement cycle, reducing the need for additional guiding components and simplifying the overall structure despite the compact space constraints.

Inventive Principle:
Principle #25Self-service

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 enables secure locking and unlocking of the sliding bracket on the housing, reducing the overall dimension of the cutter, providing a simple, convenient, and space-efficient design for storage and use.

Implementation Method 1

a rear side of the locking block is provided with a cam hinged on the sliding bracket, the cam is in abutting connection with a rear end face of the locking block, when rotating, the cam drives the locking block to slide forward and lock the sliding bracket

Methodology Applied
Scientific EffectCam mechanism: Cam

Implementation Method 2

the locking block is connected to a reset mechanism driving the locking block to slide backward

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS20240316816A1Locking structure of multi-functional vegetable cutter
Publication Date: 2024.09.26 LU CONGQIANG
  • US20240316816A1 patent drawing
  • US20240316816A1 patent drawing
  • US20240316816A1 patent drawing

AI summary

Disclosed is a locking structure of a multi-functional vegetable cutter including a housing and a sliding bracket. The sliding bracket is slidably disposed in the housing, an upper end of the sliding bracket is provided with a chute with an opening on a front side, a locking block extendable from the opening on the front side is slidably disposed in the chute, a rear side of the locking block is provided with a cam hinged on the sliding bracket, the cam is in abutting connection with a rear end face of the locking block, when rotating, the cam drives the locking block to slide forward and lock the sliding bracket, and the locking block is connected to a reset mechanism driving the locking block to slide backward.