Device for quantitatively pouring liquid molluscicide by using tides and application thereof

Abstract

The invention relates to a device for quantitatively pouring liquid molluscicide by using tides and application thereof, and belongs to the technical field of prevention and treatment of bilharziasis. The device comprises a sealing cylinder, wherein a medicine inlet pipe and a medicine discharge pipe are arranged at the upper end of the sealing cylinder, and are respectively connected with the sealing cylinder through one-way valves; and a piston is arranged at the lower end of the sealing cylinder, and is connected with a floater. In flood, a water level is ascended, the floater is pushed to drive the piston to ascend, the one-way valve connected with the medicine inlet pipe is closed, and the one-way valve connected with the medicine discharge pipe is opened to discharge a liquid molluscicide medicine in the sealing cylinder; and when the water level is descended due to the tides, the floater drives the piston to descend, the one-way valve connected with the medicine inlet pipe is opened, the one-way valve connected with the medicine discharge pipe is closed, and the liquid molluscicide medicine is sucked into the sealing cylinder from the medicine inlet pipe. The device for quantitatively pouring the liquid molluscicide by using the tides is full-automatic, simple in structure and convenient for operation, reduces the medicine cost, improves the molluscicide effect, and releases once medicine through once tide.

Description

technical field [0001] The invention relates to a device for quantitatively injecting liquid molluscicide by using tides and an application thereof, belonging to the technical field of schistosomiasis prevention and control. Background technique [0002] Oncomelania is an amphibious mollusc and the only intermediate host of Schistosoma japonicum. It is mainly distributed in the rivers and lakes islands and beach areas where the land is in winter and the water is in summer, that is, the beach between the dry water line and the wet water line. After flooding or receding, the beach is integrated with the water body of the river and lake, and it is difficult to carry out molluscicide. The spraying method is often used to kill the snails on the beach before the water rises or after the water recedes. The dosage is relatively large and it is difficult to achieve the desired effect. The amount of killing snails by dipping method is equivalent to one-thousandth of that by spraying ...

AI Technical Summary

Problems solved by technology

Before the water rises or after the water recedes, the spraying method is often used to kill the snails on the beach. The dosage is relatively large and it is difficult to achieve the desired effect.

The amount of killing snails by soaking method is equivalent to one thousandth of that of spraying method, but it needs to build a dam to lift water, which is difficult to operate

These two methods are not combined with the ecology and breeding rules of oncomelania, which is time-consuming and labor-intensive, and it is difficult to achieve the ideal purpose of controlling oncomelania

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