Irrigation Coupler Seal Ring Placement for Leakage Prevention
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Solution Overview
Problem
Conventional couplers in irrigation systems suffer from water leakage due to the design, where the insert leans against the flange instead of the seal ring initially, causing water to spray out of the gap between the second channel and the insert, leading to user splashing.
Innovation Solution
The coupler design features a circular groove above the flange with a first seal ring, where the insert first contacts the seal ring before the flange, preventing water from spraying out by guiding the water flow through a fourth channel that penetrates the assembly portion, circular toothed portion, and guide tube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insert is pressed downward toward the retaining member, then the retaining member is activated to open the first channel, but water flow sprays out of the gap between the second channel and the insert, causing user splashing
Solution Approach 1:
The first seal ring is pre-installed in the circular groove on the outer surface of the second channel, positioned to contact the insert before the retaining member's flange. This preliminary sealing arrangement ensures that when the insert is pressed downward, water is sealed off from the gap between the second channel and insert before the retaining member activates to open the first channel, preventing water spray to the user
2Ease of operation
If the insert leans against the flange of the retaining member, then the retaining member can be activated, but water leakage occurs due to the gap between the second channel and the insert
Solution Approach 1:
The first seal ring acts as an intermediary sealing element between the insert and the second channel. It is positioned in the circular groove on the outer surface of the second channel, creating a sealing interface that prevents water leakage through the gap between the insert and the second channel, while still allowing the insert to lean against the flange for activation
Data Source
AI summary
A coupler for connection and assembly of an irrigation system is revealed. The coupler includes a base, a connecting portion and a retaining member. The base is for mounting the connecting portion and the retaining member. The connecting portion is arranged with a first channel and a second channel. The second channel is used to receive an insert that is connected to sprayers or hoses. The coupler features on that the second channel above the retaining member is arranged with a seal ring. While the insert is pressed downward axially, the insert is first against the seal ring so as to prevent water flow from being sprayed out of a gap of the second channel between an inner diameter of the connecting portion and an outer diameter of the insert.