Continuous inoculator

Abstract

The invention discloses a continuous inoculator. The inoculator comprises an outer cylinder; a liquid injection cylinder, a gas injection cylinder and a two-position four-way valve are arranged in theouter cylinder; a liquid injection piston and a liquid injection piston rod fixed to the liquid injection piston are arranged in the liquid injection cylinder; a gas injection piston and a gas injection piston rod fixed to the gas injection piston are arranged in the gas injection cylinder; an outlet of the liquid injection cylinder is communicated with a first inlet of the two-position four-wayvalve; an outlet of the gas injection cylinder is communicated with a second inlet of the two-position four-way valve; a needle head is arranged at the end part of the outer cylinder and communicatedwith a first outlet of the two-position four-way valve; a liquid storage chamber communicated with the liquid injection cylinder is arranged outside the outer cylinder; a second outlet of the two-position four-way valve is communicated with the liquid storage chamber; the two-position four-way valve enables the liquid injection cylinder and the needle head to keep a normally open state; the gas injection piston rod is provided with a selector switch for switching the two-position four-way valve; and the liquid injection piston rod is provided with an end plate which drives the gas injection piston to compress the gas injection cylinder and acts on the selector switch. The invention aims to eliminate residual allowance at the needle head part during injection, so that the infection probability of silkworms is reduced.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, in particular to a continuous inoculator. Background technique [0002] At present, cosmetic raw materials need to be prepared by extracting, for example, silkworms, and silkworms need to be vaccinated during the breeding process to improve the survival rate of silkworms. The traditional vaccination method of silkworms usually uses a simple syringe to draw a certain amount of vaccine each time, and inject the vaccine into the silkworm through the syringe. It is difficult to accurately control the amount of vaccine extracted manually, and the speed of manual injection and vaccination is slow and the vaccination efficiency is low. . In order to improve the inoculation efficiency, as Chinese Patent Publication No.: CN209964822U, discloses a kind of silkworm chrysalis subcutaneous inoculation special-purpose syringe, comprises fixed cylinder, material box, needle tube, injection tube and handle,...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that the silkworm is easily infected by the residual vaccine in the needle when injecting the syringe into the silkworm subcutaneously in the prior art, the present invention provides a continuous inoculator, which can eliminate the residual residue at the needle during injection, thereby reducing the infection probability of the silkworm

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