Manual tree trunk injector

Abstract

The utility model provides a manual tree trunk injector capable of avoiding backflow of liquid pesticide in the liquid pesticide injection process and reducing pesticide waste. The manual tree trunk injector comprises an injection needle, a syringe and a piston rod, and the injection needle communicates with the front end of a valve cavity of a quick-insertion one-way valve. When the quick-insertion one-way valve is inserted into a connector body in a quick-insertion connector assembly, the rear end of a valve cavity of the quick-insertion one-way valve communicates with the front end of a connector cavity in the connector body. When the quick-insertion one-way valve is not inserted into the connector body, the rear end of the valve cavity and the front end of the connector cavity are both closed. The rear end of the connector cavity communicates with the front end of the syringe through a second one-way valve, and the second one-way valve can allow the liquid pesticide to flow from the syringe to the connector cavity. The side wall of the syringe communicates with a pesticide bottle through a connecting pipe and a one-way valve I, and the one-way valve I can only allow the liquid pesticide to flow into the syringe from the pesticide bottle. When the piston rod moves backwards, the liquid pesticide enters the syringe from the pesticide bottle through the one-way valve I and the connecting pipe. When the piston rod moves forwards, the liquid pesticide is injected into the trunk from the syringe through the second one-way valve, the connector cavity, the valve cavity and the injection needle.

Description

technical field [0001] The invention relates to a manual trunk injector, which belongs to the technical field of agricultural and forestry machinery. Background technique [0002] With the improvement of people's awareness of ecological protection, people pay more attention to the prevention and control of plant diseases and insect pests. Especially in recent years, our country has made a lot of efforts in energy conservation and ecological environment protection. It has always adhered to sustainable development and paid more attention to greening construction. In the post-maintenance of forest planting, the prevention and control of diseases and insect pests is very important. If this work is not done properly, it will affect the overall growth of the forest, cause the withering or even death of the forest, and cause serious economic losses. [0003] The traditional pest control measures are pesticide spraying. This method has certain effects, but it also has many disadvan...

AI Technical Summary

Problems solved by technology

In the post-maintenance of forest planting, the prevention and control of diseases and insect pests is very important. If this work is not done properly, it will affect the overall growth of the forest, cause the withering or even death of the forest, and cause serious economic losses.

[0003] The traditional pest control measures are pesticide spraying. This method has certain effects, but it also has many disadvantages, including causing damage to plants, animals, beneficial insects and humans near the target plants; a large number of pesticides are destroyed by evaporation, dripping and drifting Serious loss; short duration of drug effect; limited head, limited effect on pest control of tall trees

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