Flow Regulating Apparatus with Fixed Knob and Rotating Rod
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional flow regulating apparatuses face challenges in size reduction and operability due to the integral coupling of the needle valve and knob, leading to increased height and variable knob position, which deteriorates flow regulation efficiency.
Innovation Solution
A flow regulating apparatus featuring a valve body with a projection and a main body section, where a knob section rotates around a center axis while a rod member adjusts the projection's insertion amount into a valve hole, allowing for independent flow regulation with a reduced size and improved operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the needle valve and flow regulating knob are integrally coupled, then the flow rate can be regulated, but the entire height of the flow regulating apparatus changes when the knob is moved, requiring larger installation space
Solution Approach 1:
The flow regulating apparatus is divided into separate functional components: the flow regulating knob (rotating member) is separated from the needle valve (projection portion) by introducing a rod member and pin member mechanism. The knob rotates around a center axis while the rod member translates this rotational motion into axial movement of the needle valve, allowing independent optimization of each component's position and function.
Solution Approach 2:
The rod member acts as an intermediary mechanism between the flow regulating knob and the needle valve. It converts the rotational motion of the knob into linear axial movement of the needle valve through the pin member's interaction with the threaded portion, enabling flow regulation without requiring the knob to move axially, thus maintaining a fixed apparatus height.
2Device complexity
If the flow regulating apparatus is designed with integral coupling, then the structure is simple, but the apparatus cannot be sufficiently reduced in size
Solution Approach 1:
The rod member is positioned within the cylindrical space defined by the main body section and valve body section, with the pin member extending through the rod member. This nested arrangement allows the flow regulating mechanism to be compactly housed within the existing structural envelope, reducing the overall apparatus size while maintaining the necessary functional components.
Solution Approach 2:
The mechanism introduces dynamic elements (rotational motion of the knob, translational motion of the rod member and needle valve) that allow compact packaging. The dynamic components can move within limited spatial envelopes, enabling size reduction compared to static integral coupling designs that require fixed, oversized structures to accommodate all movements.
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 apparatus achieves improved operability and reduced size by allowing the knob to remain fixed while adjusting the flow rate, enabling precise control and compact design through a mechanism involving a pin member, rod member, and moving member with different threaded pitches.
Implementation Method 1
the rod member including a first threaded portion that is fastened to a body-side threaded portion formed on an inner circumferential surface of the main body section
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a flow regulating apparatus (100) including a flow regulating mechanism including: a flow regulation knob (3); a screw rod (10) that adjusts an insertion amount of a diaphragm needle (5) into a valve hole (32); and a spring roll pin (13) that is fixed to the flow regulation knob (3), wherein the screw rod 10 includes a first male threaded portion that is fastened to a female threaded portion (9a) formed on an inner circumferential surface of a cover section (9), and a through hole (10d) penetrating in the direction substantially perpendicular to the center axis (C) and having a predetermined width in the direction of the center axis (C), and the spring roll pin (13) is inserted into the through hole (10d).