Foldable Metal Detector Coil Assembly With Protected Cable Routing
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Solution Overview
Problem
Conventional handheld metal detectors have fixed detection coil disks, making them inconvenient to carry and use, and often have exposed signal transmission wires that are prone to damage, or complex structures that complicate operation and storage.
Innovation Solution
A foldable portable metal detector with a rotating detection coil disk and waterproof circuit protecting chamber, featuring threaded bolts and fixing components for easy assembly and disassembly, and a BLUETOOTH module for remote control, allowing conversion between handheld and standing-use modes while protecting cables and reducing wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the detection coil disk is made foldable for easy carrying, then portability is improved, but the signal transmission wire becomes exposed and prone to damage
Solution Approach 1:
The signal transmission wire is nested inside the rotating shaft, forming a protected pathway. The wire runs through the hollow interior of the shaft rather than being exposed on the exterior, eliminating the damage risk from bumps and wear while maintaining the foldable detection coil disk for portability.
Solution Approach 2:
The rotating shaft acts as an intermediary structure that carries the signal transmission wire from the detection coil disk to the control module. This intermediary protects the wire while enabling the rotational and folding movements needed for portability and operation.
2Ease of manufacture
If a through bolt rotating shaft is used for low cost, then manufacturing cost is reduced, but the signal transmission wire is disposed on the outer side and prone to damage
Solution Approach 1:
The rotating shaft is segmented into a hollow structure with an internal cavity that accommodates the signal transmission wire. This segmentation allows the shaft to maintain its simple, low-cost through-bolt construction while providing internal protection for the wire, resolving the contradiction between manufacturing simplicity and wire durability.
3Device complexity
If the detection coil disk is fixed at a fixed angle, then the structure is simple, but it is inconvenient to carry and use
Solution Approach 1:
The detection coil disk is made dynamically adjustable through a folding mechanism that allows it to rotate and change angles relative to the handle. This dynamic capability enables the device to adapt to different carrying and usage scenarios while maintaining a relatively simple overall structure, resolving the contradiction between structural simplicity and usability.
Data Source
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AI summary
A foldable portable metal detector includes a detection coil disk, a waterproof circuit protecting chamber, a circuit component fixedly disposed in the waterproof circuit protecting chamber, folding fixing components, fastening components, an extending rod fixedly connected to a tail end of the waterproof circuit protecting chamber, and a BLUETOOTH remote control component configured to control the foldable portable metal detector. The extending rod is manually detachable from the waterproof circuit protecting chamber. The circuit component is electrically connected with the detection coil disk. Brackets are disposed on the detection coil disk. Each bracket includes a first through hole and a second through hole. The fastening components include bolts and fixing columns. Connecting heads with connecting holes are disposed on the waterproof circuit protecting chamber. Each bolt passes through each connecting hole and each first through hole. The bolts are movably connected to the folding fixing components. Each fixing column passes through each second through hole. The waterproof circuit protecting chamber rotates with the bolts as a rotation axis.