Elastic-Bag Insect Shooter Barrel for Precise Grain Targeting

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Solution Overview

Problem

Conventional insect killing methods, such as chemical sprays and electric shock equipment, pose environmental and health risks, are costly, and require complex operations, while large air-type devices are inefficient for small insects.

Innovation Solution

A handheld insect-destroying device utilizing a tube barrel with a movable elastic bag that converts elastic potential energy into kinetic energy to launch grain ammunition, featuring a stable connection mechanism, transparent observation, and a sliding mechanism for easy loading and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If chemical spray is used for insect killing, then insect killing effectiveness is improved, but environmental and health safety deteriorates

Engineering Contradiction:

Improveinsect killing effectivenessVSAvoidenvironmental and health safety

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces chemical spray systems with a mechanical projectile-based system. The insect-destroying device uses an elastic bag to launch grain ammunition (such as salt or sand grains) at high speed to physically strike and kill insects, eliminating the need for toxic chemicals while maintaining effective insect control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If electric shock equipment is used for insect killing, then insect killing effectiveness is improved, but safety hazards worsen

Engineering Contradiction:

Improveinsect killing effectivenessVSAvoidsafety hazards

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes electric shock mechanisms with a purely mechanical projectile launch system. The elastic bag stores and releases mechanical energy to propel grain ammunition, replacing electrical components and eliminating associated safety risks such as electric shock to users or pets.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Power

If large air-type insect-destroying devices are used, then insect killing power is improved, but device complexity and cost worsen

Engineering Contradiction:

Improveinsect killing powerVSAvoidoperational complexity

Core Design Contradiction:

PowerVSDevice complexity

Solution Approach 1:

The patent extracts the essential function of projectile launching from complex air-type devices. By using a simple elastic bag mechanism instead of compressed air tanks, valves, and control systems, the device achieves sufficient insect killing power while dramatically reducing structural complexity and operational difficulty.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent employs disposable grain ammunition (salt grains, sand grains, or other small particles) that can be easily replenished. This approach eliminates the need for expensive, complex refilling systems required by large air-type devices, reducing both cost and operational complexity.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

4Ease of operation

If conventional insect killing methods are used, then ease of operation is improved, but reliability and stability deteriorate

Engineering Contradiction:

Improveoperational simplicityVSAvoidkilling reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent designs the elastic bag mechanism to be manually loaded and fired by the user without requiring complex assembly or adjustment. The grain ammunition is simply poured into the bag, which then automatically propels the projectiles when released, providing both ease of operation and reliable insect killing through consistent mechanical action.

Inventive Principle:

Principle #25Self-service

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

Provides safe, efficient, and user-friendly insect killing with precise targeting and reduced operational complexity, ensuring stability and reliability in use.

Implementation Method 1

an elastic bag (1), wherein the elastic bag (1) is sheathed at an end of the tube barrel (2), an inner cavity of the elastic bag (1) being in communication with the bore channel (2a), and is configured to shoot ammunition loaded in the elastic bag (1) out of a exit port via the bore channel (2a) through air pressure generated in the elastic bag (1)

Methodology Applied

Scientific EffectElastic potential energy conversion: Elasticity

Data Source

PatentUS12514242B1Insect-destroying device

Publication Date: 2026.01.06 LOGICARER BIOTECHNOLOGY (SHENZHEN) CO LTD

AI summary

The bore channel of the tube barrel includes a first portion and a second portion. The first portion and the second portion are in communication with each other. A cross-sectional area of the first portion gradually decreases from an end close to the elastic bag to an end away from the elastic bag and eventually becomes equal to a cross-sectional area of an end of the second portion away from the exit port. The cross-sectional area of the second portion remains unchanged and is equal to a cross-sectional area of the exit port. when being shot out from the elastic bag, grain ammunition gathers at a connection between the first portion and the second portion, and further rushes toward a bottom of the second portion. Then the exit port is pointed at an insect, so that the grain ammunition is precisely shot at the insect through the exit port.