Septic Tank Riser Flange Assembly With Hidden Fasteners
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Solution Overview
Problem
Conventional septic tank access devices with visible fasteners are susceptible to tampering and accidental ingress, posing safety risks and maintenance challenges.
Innovation Solution
A tamper-proof adapter flange and ingress device assembly with hidden fasteners, positioned lower in the riser pipe, featuring interlock mechanisms and removable ingress devices to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ingress devices with visible fasteners are used, then installation and maintenance are simple, but the device is susceptible to tampering and accidental ingress
Solution Approach 1:
The fasteners are extracted from visible positions and hidden within the adapter flange structure. The connector includes hidden fasteners that are not accessible from the exterior, separating the fastening function from visible components. This eliminates the vulnerability of visible fasteners to tampering while maintaining secure attachment.
Solution Approach 2:
The ingress device is nested within the adapter flange assembly, with the barrier portion positioned inside the flange structure. The connector is nested within the riser pipe opening, creating a layered protective structure where the ingress device is protected by the flange and the fasteners are protected by the flange structure.
2Ease of operation
If the ingress device is positioned at the top of the riser for easy access, then maintenance is convenient, but unauthorized personnel can easily remove it
Solution Approach 1:
The adapter flange acts as an intermediary structure between the riser pipe and the ingress device. It provides a secure mounting platform with hidden fasteners that mediate between the need for maintenance access and the need to prevent tampering. The flange structure serves as a protective intermediary that shields the fastening mechanism.
Solution Approach 2:
The fasteners are positioned in a different dimensional space - hidden within the flange structure rather than exposed on the exterior surface. This dimensional repositioning moves the fastening mechanism from an accessible exterior dimension to a protected interior dimension, preventing tampering while allowing maintenance through proper removal procedures.
3Stability of the object's composition
If a large flange with multiple identical sections is used, then the structure is stable and secure, but shipping cost and container size increase
Solution Approach 1:
The adapter flange is segmented into multiple identical sections that can be assembled together. This segmentation allows the flange to achieve structural stability through modular assembly of smaller components rather than requiring a single large piece, reducing material volume and shipping requirements while maintaining structural integrity through the interconnected sections.
Data Source
AI summary
A connector for use with a riser pipe coupled to a septic tank including a chamber and an access opening to the chamber. The connector includes a body having a cylindrical portion and a flange exterior of the cylindrical portion, and the body is defined by a first section having a first interlock feature on the flange and a second section having a second interlock feature on the flange complementary to the first interlock feature. The first section and the second section are removably attachable to each other via engagement of the first interlock feature and the second interlock feature and cooperatively defining a continuous perimeter. The first section and the second section further cooperatively define a first surface configured to be coupled to the septic tank or the riser pipe.