Rotary Surface Animal Trap Mechanism for Jam-Free Trapping
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Solution Overview
Problem
Existing animal trapping devices are unreliable, prone to jamming, and inefficient in trapping multiple animals without using poisonous baits, and they are not compact or easy to transport, with issues related to bait diffusion and structural fragility.
Innovation Solution
A compact, environmentally friendly trapping device with a rotary surface mechanism that rotates 180° to trap animals without jamming, featuring a spiral spring and elliptical plates for secure trapping, and a bait compartment for optimal scent diffusion, allowing for easy transport and modification for various animal sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a rotary platform mechanism is used to trap animals, then multiple animals can be trapped in sequence, but the device becomes fragile and delicate with considerable bulk
Solution Approach 1:
The device is divided into an upper trapping unit and a lower collection container that can be separated. The trapping unit contains the rotary platform mechanism while the collection container provides stable support. This segmentation allows the complex trapping mechanism to be isolated in a compact upper section while the lower section provides structural stability and collection capacity.
Solution Approach 2:
The rotary platform mechanism is nested within a compact housing structure. The platforms are arranged vertically within the upper trapping unit, maximizing space utilization. The entire upper unit can be placed into the lower collection container for transport, creating a nested configuration that reduces bulk during transportation.
2Productivity
If the rotary mechanism rotates continuously to trap animals, then trapping efficiency increases, but the animal might be caught between the platform and the wall causing the mechanism to jam
Solution Approach 1:
The rotary platforms are designed with rounded edges and smooth surfaces that prevent animals from getting caught. The rotation speed is controlled to be slow enough to allow animals to be gently deposited into the collection container without sudden movements that could cause jamming. A clearance gap is maintained between the platforms and the housing walls to prevent contact.
Solution Approach 2:
The rotary mechanism transitions from continuous rotation to a controlled stop-and-go operation. The platforms rotate to position the animal over the collection container, then pause to allow complete deposition before rotating back. This dynamic control prevents jamming while maintaining trapping efficiency.
3Ease of operation
If the entrance opening remains open during trapping phase, then animals can enter freely, but the animal might escape or the mechanism might get jammed
Solution Approach 1:
The entrance door is designed to automatically close behind each animal that enters the trapping corridor. This preliminary action of closing the door prevents subsequent animals from interfering with the trapping mechanism or escaping. The door closes smoothly without creating sudden movements that could jam the mechanism.
Solution Approach 2:
A intermediate corridor structure is provided between the entrance and the rotary platform area. This corridor acts as a buffer zone where animals are guided one at a time. The corridor design ensures that only one animal can be in the trapping area at any given time, preventing multiple animals from causing jams while keeping the main entrance open for animal attraction.
4Ease of manufacture
If scented baits are confined within a compartment, then the bait is protected, but the diffusion of the scent is not optimal
Solution Approach 1:
The bait compartment is designed with porous walls or a perforated structure that allows scented vapors to diffuse through while containing the physical bait material. This porous design enables optimal scent diffusion into the surrounding environment to attract animals while preventing the bait from being accessed or wasted.
Solution Approach 2:
The bait compartment uses a thin-walled structure with controlled permeability that allows scent molecules to pass through while maintaining containment. The compartment design includes ventilation channels and scent ports that optimize the diffusion path for maximum attractant dispersion while keeping the bait secure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device ensures continuous and reliable trapping of animals of various sizes without jamming, enhances bait diffusion, and is structurally sturdy and compact for easy transport, addressing the limitations of prior devices.
Implementation Method 1
The trapping mechanism (9) comprises a rotary surface (10) having a main direction of extension X extending along a longitudinal axis (10a), which coincides with the direction of entry X into the trapping corridor (7)... Each time the trapping mechanism (9) is activated, the rotary surface (10) completes a 180° rotation about an axis (9a) of symmetry transversal to the longitudinal axis (10a)
Implementation Method 2
The guard (5) with the inlet (6) and the rotary surface (10) are configured in such a way that the rotary surface (10) shuts off the animal's escape route within a few degrees of rotation on being raised in the direction of the guard (5)... scented baits placed in a specially made compartment
Data Source
Figure 1
Figure 2
AI summary
An environmentally friendly device for trapping animals comprising a collection container (3) comprising an upper opening (3a), an intermediate supporting frame (4), forming a drop duct (8) and such that it at least partly closes the opening (3a) of said collection container (3), a closing guard (5), which can be superposed on the intermediate supporting frame (4), comprising an inlet (6) and a compartment forming a trapping corridor (7), a trapping mechanism (9) supported by the frame (4) and positioned over the drop duct (8), comprising a rotary surface (10) having a main direction of extension (X) extending along a longitudinal axis (10a) coinciding with the direction of entry into the trapping corridor (7), being designed to close the top of the drop duct (8) and to form the treadable surface of the trapping corridor (7). The trapping mechanism (9) comprises two plates (14a, 14b) connected to each other by the rotary surface (10), which is positioned orthogonally to each of them. Each time it is activated the rotary surface and the two plates (10) complete a 180° rotation about an axis (9a) of symmetry which is transversal to said longitudinal axis (10a) coinciding with the direction of entry into the trapping corridor (7).