plunger applicator

Abstract

The invention provides a plunger type medicine applying device and relates to the medicine applying device. The medicine applying device can prevent a fumigation medicament from leaving in a medicine delivery pipe, and is high in safety, and a medicament is saved. The medicine applying device comprises a flow-guide inclined tube, a nut cap, a shell, a reset spring, a plunger, a hand wheel, a check valve and a supporting head, wherein the nut cap covers the rear end of the flow-guide inclined tube and is integrated with the flow-guide inclined tube; the nut cap is connected with the front end of the shell in a screwing way; the plunger is positioned in the shell and is a hollow plunger; the outer wall of the plunger is glidingly matched with the inner wall of the shell in a sealing way; the reset spring is arranged between the front end in the shell and the front end of the plunger; a limit device is arranged between the rear end of the shell and the rear end of the plunger; the hand wheel is arranged at the rear end of the plunger and is connected with the rear end of the plunger in the screwing way; the outlet end of the check valve is connected with the rear end of the plunger in the screwing way; the inlet end of the check valve is connected with the supporting head in the screwing way; the other end of the supporting head is externally connected with the medicine delivery pipe.

Description

technical field [0001] The invention relates to an applicator, in particular to a plunger type applicator mainly used for spraying fumigants (such as methyl bromide, sulfuryl fluoride, etc.). Background technique [0002] The current quarantine treatment, using fumigation to kill insects and fumigate rodents is a common method. Most of the fumigants (such as methyl bromide and sulfuryl fluoride) are highly toxic gases and are usually stored in steel cylinders. When using (such as fumigation of containers), it is necessary to connect the valve on the steel cylinder to the drug delivery pipe, and inject the fumigant gas into the interior of the container through the special pin connected to the drug delivery pipe for fumigation and disinfection operations. After the fumigation operation is completed, There is still fumigant agent residue in the drug delivery tube, and the residual agent will spread in the air, and it is easy to touch the skin of the fumigation operator or ent...

AI Technical Summary

Problems solved by technology

When using (such as fumigation of containers), it is necessary to connect the valve on the steel cylinder to the drug delivery pipe, and inject the fumigant gas into the interior of the container through the special pin connected to the drug delivery pipe for fumigation and disinfection operations. After the fumigation operation is completed, There is still fumigant agent residue in the drug delivery tube, and the residual agent will spread in the air, and it is easy to touch the skin of the fumigation operator or enter the human body through the human respiratory tract, which not only wastes the agent, but also poses a great risk of personal safety and environmental pollution

A suitable applicator has not yet been found

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