Reservation Box with Segmented Feet for Reinforcement Rods
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Solution Overview
Problem
Existing methods for incorporating pipes into concrete slabs face difficulties in securely attaching reservation boxes to reinforcement rods without interfering with the concrete coating, leading to inefficient access and anchoring issues.
Innovation Solution
A reservation box design featuring a hollow body with a side wall and a spacer wall with serrated end edges and locking housings that allow for easy mounting on reinforcement rods, ensuring the box remains clear of concrete while providing stable fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the reservation box is attached to the reinforcement rods using conventional methods (skirt/wing with through holes), then the box can be fixed to the frame, but the rods cannot be properly coated with concrete
Solution Approach 1:
The bottom of the reservation box is segmented into multiple discrete attachment points (feet) rather than a continuous skirt or wing structure. Each foot is independently positioned to contact specific reinforcement rods, allowing concrete to flow around and coat the rods properly while still providing secure attachment through the feet's engagement with the rods.
Solution Approach 2:
The feet act as intermediary elements between the reservation box and the reinforcement rods. These feet provide a localized contact interface that transfers attachment forces without requiring continuous contact between the box and rods, thus allowing concrete to access and coat the rod surfaces while maintaining reliable fixation through the intermediary feet structure.
2Stability of the object's composition
If the bottom of the box is in contact with the rods, then the box is stable on the frame, but the rods are prevented from being coated with concrete
Solution Approach 1:
The continuous bottom surface is segmented into discrete feet structures. These feet provide localized stability points that engage with the reinforcement rods, while the gaps between feet allow concrete to flow around and coat the rod surfaces. The segmented structure maintains box stability through multiple contact points without creating a continuous barrier to concrete coating.
Solution Approach 2:
The attachment structure transitions from a two-dimensional continuous skirt/wing to a three-dimensional discrete feet structure with vertical engagement. The feet extend downward to contact rods at specific points, creating a vertical dimension of attachment that leaves horizontal space for concrete flow and coating around the rods.
3Reliability
If a skirt or wing is used for fixing the box to the frame, then attachment is possible, but the structure becomes complex and difficult to mount
Solution Approach 1:
The complex continuous skirt or wing structure is segmented into simple discrete feet. Each foot is a basic geometric element that can be easily manufactured and positioned. The segmented feet provide reliable attachment through direct contact with reinforcement rods while dramatically reducing structural complexity compared to articulated skirts or wings.
Solution Approach 2:
Instead of using an articulated, movable skirt or wing that folds against the frame for attachment, the invention uses fixed, stationary feet that directly contact the rods. This inverts the approach from a complex movable attachment mechanism to a simple fixed contact structure, reducing complexity while maintaining attachment reliability.
Data Source
Figure 1~2
Figure 3~4
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AI summary
The invention relates to a storage box intended to be supported by a frame formed of rods (3), comprising a base (6) from which rises a lateral wall (7) defining, opposite the inner face of the base, an opening (9) intended to be closed by a lid. This box includes a spacer wall (12) extending projecting from the outer face (6e) of the base, in the form of a continuous ring having a serrated end edge (14) having a series of teeth (16) defining, between them, locking recesses (17) for the rods.