Modular Weight Box Assembly With Vented Threaded Connection

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Solution Overview

Problem

Existing multifunctional fitness equipment, such as dumbbells, kettlebells, and barbells, face issues with inconvenient installation of threaded sleeves and incomplete ventilation during the solidification process of filling solutions, leading to potential security risks and incomplete assembly.

Innovation Solution

A multifunctional fitness equipment design featuring a weight box with a threaded connection hole, an inner sealing sleeve, and a ring gear structure that allows for gas release through gaps between teeth and grooves, along with a detachable wedge block for easy assembly and secure connection of holding rods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a threaded sleeve is installed into the weight box before the filling solution solidifies, then the multifunctional fitness requirements can be realized, but the filling solution may not be fully infilled and gas may not be completely released

Engineering Contradiction:
Improvemultifunctional fitness requirementsVSAvoidassembly safety
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The threaded sleeve is pre-installed into the weight box before the filling solution is poured in. This preliminary action allows the threaded sleeve to be positioned correctly before the filling solution solidifies, enabling subsequent assembly of holding rods while ensuring proper ventilation during the solidification process.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The threaded sleeve acts as an intermediary component that facilitates both the ventilation of gas during solidification and the subsequent assembly of holding rods. The threaded sleeve's hollow structure serves as a passage for gas to escape while providing a mounting interface for the holding rods.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the threaded sleeve is installed during the solidification process, then multifunctionality is achieved, but the assembly process becomes inconvenient and may create security risks

Engineering Contradiction:
ImprovemultifunctionalityVSAvoidassembly convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The threaded sleeve is installed in advance before the filling solution solidifies, making the assembly process more convenient. This preliminary installation allows workers to easily secure the threaded sleeve while the filling solution is still pliable, and subsequent assembly of holding rods becomes a simple threading operation rather than a complex installation process.

Inventive Principle:
Principle #10Preliminary action

3Object-generated harmful factors

If ventilation is needed during solidification, then gas can be released, but the filling solution may not be fully infilled

Engineering Contradiction:
Improvegas releaseVSAvoidfilling completeness
Core Design Contradiction:
Object-generated harmful factorsVSManufacturing precision

Solution Approach 1:

The threaded sleeve serves as a dual-function intermediary: its hollow interior provides a ventilation passage for gas to escape during solidification, while its threaded structure and positioning ensure that the filling solution can still fully infill the weight box around it. The sleeve's design balances ventilation needs with filling completeness.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4378546A1Multifunctional fitness equipment
Publication Date: 2024.06.05 SHENZHEN SHENLAIYIBI INTELLIGENT TECHNOLOGY CO LTD
  • EP4378546A1 patent drawingFigure 1
  • EP4378546A1 patent drawingFigure 2
  • EP4378546A1 patent drawingFigure 3~4

AI summary

The present disclosure provides a multifunctional fitness equipment, including a weight box (1), a connection hole (3) provided on one end of the weight box and detachably connected with a holding rod, and a handle (2) provided on a side surface of the weight box or on an end surface away from the connection hole of the weight box. The present disclosure provides a simple structure and is convenient to use. By using the kettlebell as the foundation fitness equipment, the users can obtain complete fitness experience when performing kettlebell fitness training. In addition, by choosing various holding rods to assemble, the functions of the fitness equipment can be changed. It will not interfere the assembled equipment but reserve complete experience when performing the fitness activities of kettlebells, dumbbells, and barbells respectively, therefore has a good experience effect.