Spool Seat Positioning Structure for Ceramic Disc Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Typical spool seats for water control valves waste space due to the protruded locating portion for fixing the spool ceramic disc, limiting the available assembly space.
Innovation Solution
The spool seat incorporates an internal locating portion with internal and external flanges that divide the chamber space, restricting the ceramic disc's rotation and displacement, allowing efficient use of the space and preventing slide or displacement during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protruded locating portion is used to fix the spool ceramic disc, then the ceramic disc can be positioned, but the available space of the spool seat is reduced
Solution Approach 1:
The patent inverts the conventional locating structure by moving the locating portion from the spool seat to the ceramic disc itself. The ceramic disc is provided with a locating portion that protrudes outward, which engages with a corresponding receiving structure in the spool seat. This inversion allows the spool seat to maintain a larger internal diameter while still achieving accurate positioning of the ceramic disc, thereby resolving the space waste problem without compromising positioning reliability
2Volume of moving object
If the internal diameter of the spool seat is increased to utilize more space, then the available assembly space increases, but the locating capability may be compromised
Solution Approach 1:
The patent enhances the locating capability by adding multi-dimensional constraints through the ceramic disc's locating portion. Instead of relying solely on the spool seat's internal diameter, the invention uses a combination of radial engagement (through the receiving structure) and axial positioning (through the protruding locating portion on the disc), creating a three-dimensional locating system that ensures reliable fixation while allowing larger spool seat dimensions
Data Source
AI summary
The present invention provides a spool seat with a positioning structure, which resolves the shortcomings of the assembly of a typical spool ceramic disc and spool seat. The spool seat of the present invention is provided with a chamber space for locating the fixed ceramic disc. The chamber space is provided with an internal locating portion which comprises an internal locating flange and external locating flange. An external locating portion is protruded from the chamber space. The chamber space is divided into inlet space and outlet space via the arrangement of internal locating portion. It is possible to eliminate the space restrictions for the fixed ceramic disc, and also prevent the rotation and slide or displacement when the fixed ceramic disc is assembled into the chamber space of the spool seat.