Hydraulic Valve Mounting Mechanism for Leak-Resistant Pipe Alignment

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Solution Overview

Problem

In working machines with hydraulic cylinders, improper fastening of hydraulic pipes to cylinder ports leads to irregular forces, increasing the risk of fluid leakage.

Innovation Solution

A valve mounting mechanism that includes an attachment structure, a connection structure, and an adjustment mechanism to securely attach and position the mount valve on the hydraulic cylinder, allowing for adjustable positioning of the pipe fastening portion to reduce strain and prevent leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the hydraulic pipe is not precisely fastened to the cylinder port, then the assembly is easier to manufacture, but irregular force is applied to the pipe fastening portion and fluid leakage risk increases

Engineering Contradiction:
Improveease of assemblyVSAvoidfluid leakage prevention
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The mount valve is designed with adjustable positioning capability, allowing the cylinder port to be dynamically positioned to achieve precise alignment with the hydraulic pipe during operation, thereby eliminating irregular forces while maintaining ease of assembly through the adjustment mechanism

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

An adjustment mechanism serves as an intermediary between the rigid hydraulic pipe connection and the mount valve, providing the necessary flexibility to achieve precise alignment without requiring perfect manufacturing tolerances, thus resolving the contradiction between ease of assembly and leakage prevention

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If the mount valve position is fixed without adjustment capability, then the device complexity is reduced, but strain on the pipe fastening portion increases

Engineering Contradiction:
Improvestructural simplicityVSAvoidpipe fastening portion durability
Core Design Contradiction:
Device complexityVSStrength

Solution Approach 1:

The mount valve incorporates an adjustment mechanism that enables dynamic positioning, allowing the cylinder port to be precisely aligned with the hydraulic pipe to eliminate strain on the pipe fastening portion, while the adjustment mechanism itself is designed to be relatively simple in structure

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12006660B2Valve mounting mechanism, hydraulic device, and working machine
Publication Date: 2024.06.11 KUBOTA CORP
  • US12006660B2 patent drawing
  • US12006660B2 patent drawing
  • US12006660B2 patent drawing

AI summary

A valve mounting mechanism, for mounting a mount valve on a cylinder tube of a hydraulic cylinder, includes: an attachment structure that attaches the mount valve to the hydraulic cylinder; a connection structure that connects a second end part of a hydraulic pipe, whose first end part is connected to the hydraulic cylinder, to a cylinder port of the mount valve; and an adjustment mechanism that adjusts relative positions of a pipe fastening portion, where the hydraulic pipe is fastened to the connection structure, and the mount valve.