CN101627739A - Extractor - Google Patents

Abstract

The invention relates to an extractor for extracting micro objects with hand force, in particular for extracting fish eggs, fish fries and foreign impurities. The extractor comprises a handle, a collecting bottle, a pressure reducer, an air duct, a power lever and the like. The extractor has the advantages that the service capacity is larger, the foreign impurities, the died eggs, the living eggs, the fish fries just hatched and having worse swimming ability are extracted according to demands, and the difficult of removing the dead eggs and the foreign impurities under the condition that massive egg granules exist can be solved.

Description

extractor

technical field

The invention relates to a suction device for sucking tiny objects at the bottom of the water by manual force, especially a sucker capable of sucking fish roe, fish seedlings and impurities.

Background technique

In the artificial hatching of tilapia, when the water flow in the hatching bucket is adjusted, fish eggs tend to rush into the seedling box; dead fish eggs with low density in the middle and late stages of hatching will also flow into the seedling box, and impurities will continue to deposit in the seedling box Inside. In order to collect the fish eggs in the seedling collection box and return them to the hatching bucket for hatching, and remove dead eggs and impurities to prevent live eggs from being infected with water mold and bad water, at present, the water in the seedling collection box is generally poured out, and the fish eggs are collected by picking; or The method of discarding dead eggs, impurities, etc. together with water is labor-intensive, water-intensive and time-consuming, and it is particularly difficult to operate during mass reproduction.

Contents of the invention

In order to overcome the limitations and inefficiencies of the current operating methods, and solve the difficulties of removing dead eggs and impurities and recovering live eggs in the case of large quantities of eggs, the invention provides an aspirator, which has a large working capacity and can Absorb impurities, dead eggs, live eggs and newly hatched fish larvae with poor swimming ability as needed.

The technical solution adopted to solve its technical problems is:

An aspirator, comprising: a handle body; a collection bottle, the bottle is installed at the front end of the handle body, and there is a discharge port on the bottle body for discharging the aspirated matter; a pressure reducer, composed of a cylinder body and a piston, is embedded in the handle body The upper part of the body, the one end of the cylinder has two check valves in opposite directions, the piston group is composed of a piston and a piston rod; the cylinder and the piston rod are arc-shaped; the air duct is connected to the pressure reducer and The collecting bottle; the power lever is sleeved on the pin shaft of the handle body, and one end thereof is connected with the piston rod.

According to the extractor of the present invention, live eggs, dead eggs and impurities can be sucked as required: fish eggs will flow into the seedling collection box when the water flow is adjusted at the beginning of hatching, and live eggs are collected at this time: put a suction tube on the collection bottle mouth, and use a hand-held The handle of the extractor, the finger continuously pulls the power lever to drive the pressure reducer to work, so that the air pressure in the collection bottle is reduced, and the suction tube will suck the sucked live eggs into the collection bottle to complete the work of sucking live eggs; A certain amount of dead eggs and impurities are accumulated in the box, and the dead eggs and impurities are absorbed by the above method of collecting live eggs.

Beneficial effects of the present invention: the beneficial effects of the present invention are that a large amount of selected objects can be absorbed at one time, and the operation is easy, the movement is convenient, and the structure is simple.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Figure 2 is a schematic diagram of the longitudinal structure of the pressure reducer.

In the figure: 1-suction pipe, 2-discharge port, 3-collection bottle, 4-pressure reducer, 5-piston rod, 6-spring, 7-air guide tube, 8-handle body, 9-power lever, 10 -finger pull, 11-finger ring, 12-pin shaft, 13-positive one-way valve, 14-reverse one-way valve, 15-piston.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing

Specific embodiment 1:

Referring to Fig. 1 and Fig. 2, the collection bottle 3 is at the front end of the handle body 8, and is used to store the inhaled water and the corresponding aspirated matter. There is a discharge opening 2 on it, and a cover can be sealed to discharge the aspirated matter regularly. The suction pipe 1 The collection bottle 3 is connected by inserting. The pressure reducer 4 is composed of a cylinder and a piston group. The piston group is composed of a piston 15 and a piston rod 5. There are positive one-way valve 13 and reverse one-way valve 14 at one end of the cylinder. It is automatically opened and closed by air pressure; the air duct 7 connects the collection bottle 3 and the pressure reducer 4 . The power lever 9 is contained on the bearing pin 12, which can drive the piston to move and make it return to its original position by the spring 6. Pull the finger pull 10, the power lever 9 rotates around the pin shaft 12, stretches the spring 6, and pulls the piston 15 through the piston rod 5, causing the air pressure in the pressure reducer 4 to decrease, so that the reverse one-way valve 14 is closed, and the positive one-way valve 13 is opened, and the air pressure in the collection bottle 3 is reduced by the air duct 7, and the live fish roe is sucked into the collection bottle 3. When the piston 15 to 16 is in position, the hand is loosened and the spring 6 rebounds. At this time, the forward check valve 13 is closed and the reverse check valve 14 is opened, so that the gas in the pressure reducer 4 is discharged to the outside, and the piston 15 is pulled by the piston rod 5. Return to the initial state. The finger repeatedly pulls and works continuously. After the fish roe is sucked, the discharge port 2 is opened, and the fish is put back into the hatching bucket.

Claims (2)

1. An extractor, characterized in that it comprises: body; The collection bottle is installed at the front end of the handle body, and there is a discharge port on the bottle body; The pressure reducer is composed of a cylinder body and a piston group, and is embedded in the upper part of the handle body; There are two one-way valves with opposite directions at one end of the cylinder; the piston group is composed of a piston and a piston rod; Airway, connecting the pressure reducer and the collection bottle; The power lever is sleeved on the pin shaft of the handle body, and one end thereof is connected with the piston rod. 2. The aspirator according to claim 1, characterized in that the cylinder body and the piston rod are arc-shaped.

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