Tree Injection System With Electric Pump and Pressure Switch
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Solution Overview
Problem
Current tree injection methods are labor intensive and potentially less hygienic due to the use of pressurized product containers, which can lead to equipment leakage and hygiene issues.
Innovation Solution
A tree injection system that utilizes an electric pump to pressurize a liquid supply at ambient pressure, with a pressure switch to actuate the pump when necessary, and a dosage assembly with a gas chamber to provide a metered dose of liquid, allowing for efficient and safe injection without the need for pressurized containers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressurized product containers are used, then liquid can be delivered to the injection site, but equipment leakage and hygiene issues occur
Solution Approach 1:
The patent extracts the pressurization function from the product container itself and relocates it to a separate pump mechanism. The container remains at ambient pressure, while a pump delivers liquid to the injection site under pressure. This separation eliminates the harmful effects of pressurized containers while maintaining reliable liquid delivery.
Solution Approach 2:
The pump acts as an intermediary between the ambient pressure container and the pressurized injection site. It receives liquid at ambient pressure from the container and delivers it at controlled pressure to the injection needle, mediating between these two states and eliminating the need for pressurized containers.
2Device complexity
If manual injection methods are used, then simple equipment is required, but labor intensity and time consumption increase
Solution Approach 1:
The system incorporates a trigger mechanism that automatically actuates the pump and controls the injection sequence. When the operator pulls the trigger, the system self-manages the pump activation, liquid delivery, and dosing, reducing manual labor intensity while maintaining relatively simple equipment structure.
Solution Approach 2:
The patent replaces manual mechanical pumping with an electric pump actuated by a trigger mechanism. This substitution maintains equipment simplicity while significantly improving injection speed and efficiency, as the electric pump delivers liquid faster and more reliably than manual pumping.
3Stress or pressure
If pressurized containers are used, then liquid can be delivered under pressure, but refilling and replacement become complex and time-consuming
Solution Approach 1:
The patent extracts the pressurization function from the container and places it in a separate pump system. This allows the container to be refilled at ambient pressure without requiring complex depressurization procedures, significantly reducing refilling and replacement time while maintaining the ability to deliver liquid under pressure.
4Object-affected harmful factors
If ambient pressure liquid supply is used, then hygiene and safety improve, but additional pressurization equipment is required
Solution Approach 1:
The patent extracts the pressurization function from the container and relocates it to a separate, controllable pump mechanism. This allows the liquid supply to remain at ambient pressure (improving hygiene and safety) while the pump provides pressurization only when needed for injection, managing device complexity through functional separation.
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 system reduces the time and effort required for multiple injections, enhances operator safety and hygiene by eliminating the need for pressurized containers, and allows for quick refilling and replacement of liquid supplies.
Implementation Method 1
an electric pump for pressurizing and discharging the liquid from the assembly at a first pressure above ambient pressure
Implementation Method 2
a second chamber that contains a gas under a second pressure above ambient pressure which is lower than said first pressure
Data Source
AI summary
There is provided by the present invention an injection system for use in injecting a liquid into a tree, the system comprising: (A) a liquid supply assembly (10) comprising a liquid supply inlet (34) for providing the liquid to the assembly at ambient pressure, an electric pump (68) for pressurizing and discharging the liquid from the assembly at a first pressure above ambient pressure through a liquid supply outlet (36), a pressure switch (72) connected to the supply outlet and in electrical communication with the pump for selectively actuating the pump when the pressure of the liquid supply outlet falls below said first pressure.