Pivoting and lifting structure with push-pull locking, dishwasher, and household appliance

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Solution Overview

Problem

Current household appliances with movable storage structures require additional locking and unlocking mechanisms, increasing costs and complexity, to maintain storage at designated heights and facilitate user convenience.

Innovation Solution

A pivoting and lifting structure with push-pull locking mechanism, comprising a rotating assembly, sliding assembly, and trigger assemblies with guide and limiting grooves, allows for the storage portion to be lifted and locked without additional locking devices by utilizing the cooperation between guide and limiting grooves for stability and locking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If additional locking and unlocking mechanisms are configured to maintain storage at designated heights, then the storage stability is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvestorage stabilityVSAvoidlocking mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The guide groove and limiting groove structures enable the storage portion to automatically lock at designated heights through its own movement, without requiring external locking mechanisms. The guide portion of the storage portion engages with the guide groove during movement and automatically engages with the limiting groove at the target position,实现 self-locking functionality

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The locking function is merged into the guide groove structure itself. The guide groove serves dual purposes: guiding the movement path of the storage portion and providing the limiting groove that acts as the locking feature. This integration eliminates the need for separate locking components

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If additional unlocking structures are configured to enable users to lower the storage portion, then the ease of operation is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvestorage portion retrieval easeVSAvoidunlocking structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The storage portion automatically unlocks when pulled down, as the guide portion disengages from the limiting groove and follows the guide groove back to the starting position. No separate unlocking mechanism is needed - the reversal of the lifting action naturally performs the unlocking function

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The unlocking action is achieved by reversing the lifting motion. Instead of requiring a separate unlocking mechanism, the system uses the inverse of the locking action (pulling down) to automatically disengage the guide portion from the limiting groove,实现 unlocking through inversion of the original action

Inventive Principle:
Principle #13The other way round (Inversion)

Data Source

PatentUS12137862B1Pivoting and lifting structure with push-pull locking, dishwasher, and household appliance
Publication Date: 2024.11.12 SHENZHEN BAOJIA OPTOELECTRONICS
  • US12137862B1 patent drawing
  • US12137862B1 patent drawing
  • US12137862B1 patent drawing

AI summary

A pivoting and lifting structure with push-pull locking, a dishwasher, and a household appliance are disclosed. To move the storage portion from an initial position to a position convenient for the user, the storage portion is first pulled out from the initial position. Then, the storage portion continues to be pulled to drive the swing portion to rotate to lift the storage portion. At this time, the guide portion is located at an inlet of a guide groove, enabling the guide portion to slide or roll along the guide groove. Therefore, the storage portion will not shake at the front and rear positions when it pivots upwards. Finally, the storage portion is pushed or pulled and the guide portion slides into the limiting groove to be in the locking position, preventing the guide portion returning in the direction opposite to the extension direction of the guide groove.