Adjustable Counterweight Liquid Level Sender
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Adjusting the counterweight in liquid level sending units for tanks is a labor-intensive and time-consuming process, requiring iterative adjustments to ensure the float rests properly on the liquid surface, affecting the accuracy and efficiency of liquid level indication.
Innovation Solution
An adjustable second counterweight assembly along the float arm allows for precise adjustment of buoyancy weight by sliding and securing the counterweight along the float arm, eliminating the need for iterative adjustments, using a coupler system with an internally threaded portion and externally threaded projection to fix the counterweight at a predetermined location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the counterweight is adjusted by removing material iteratively, then the float can be balanced to rest at the proper level, but the adjustment process becomes labor-intensive and time-consuming
Solution Approach 1:
The counterweight is made adjustable along the float arm through a threaded mechanism, allowing dynamic repositioning without material removal. The counterweight can be slid to different positions and secured with a locking mechanism, enabling quick adjustments while maintaining precise balance control.
Solution Approach 2:
Instead of changing the mass of the counterweight by removing material, the invention changes the positional parameter of the counterweight along the float arm. By adjusting the location of the counterweight relative to the pivot point, the balancing effect is achieved without iterative material removal.
2Measurement precision
If material is removed from the counterweight to adjust weight, then the float balance is improved, but additional counterweights must be added if too much material is removed
Solution Approach 1:
The counterweight assembly includes a movable counterweight that can be repositioned along the float arm and locked in place. This dynamic adjustment mechanism eliminates the need for multiple counterweight components and iterative assembly/disassembly operations.
Solution Approach 2:
The counterweight assembly is segmented into adjustable components including the counterweight itself, a threaded bore for movement, and a locking mechanism. This segmentation allows independent adjustment of each component to achieve precise balance without complicating the overall assembly.
3Adaptability or versatility
If different float materials and lengths are selected for different liquids, then the sending unit can measure various liquid types, but the counterbalancing process becomes more time-consuming
Solution Approach 1:
The adjustable counterweight position along the float arm provides a universal balancing mechanism that works with different float materials and lengths. Rather than requiring rebalancing through material removal for each float type, the counterweight can be repositioned to accommodate various float configurations.
Solution Approach 2:
The float arm assembly with adjustable counterweight serves multiple functions: it can balance different float types (different materials, lengths, weights) using a single standardized mechanism. The threaded adjustment system provides universal compatibility across various liquid measurement applications.
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
This solution significantly reduces the time and labor required for counterbalancing the float, ensuring accurate liquid level readings by allowing for straightforward adjustment of the buoyancy weight, enhancing the efficiency and accuracy of the liquid level sending unit.
Implementation Method 1
different gravitational forces will be present on the float, thus causing the float to sink into the fluid or rise above the fluid level. Accordingly, it is important to adjust the counterweight associated with the yoke so that the float rests at the proper position on top of the liquid surface
Implementation Method 2
a first coupler having a first bore extending therethrough for slidably receiving the float arm, the first bore including an internally threaded portion and a step, a second coupler having an externally threaded projection for engaging the internally threaded portion
Data Source
AI summary
A liquid level sending unit for indicating liquid level within a container includes a mounting base adapted for mounting on a wall of a container, a support member extending from the mounting base, a float arm pivotally mounted to the support member about a pivot axis, a float connected to the float arm on one side of the pivot axis, a first counterweight located on one side of the pivot axis, and a second adjustable counterweight located on an opposite side of the pivot axis. The second counterweight is adjusted along a length of the float arm until a predetermined buoyancy weight of the float is achieved for a particular liquid to be measured.