CN101627739A

CN101627739A - Extractor

Info

Publication number: CN101627739A
Application number: CN200910181908A
Authority: CN
Inventors: 何杰; 徐跑; 朱健
Original assignee: Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
Current assignee: Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
Priority date: 2009-07-23
Filing date: 2009-07-23
Publication date: 2010-01-20

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 present invention relates to a kind ofly draw water-bed small items, especially can draw the extractor of fish-egg, fish seedling, impurity with manual force.

Background technology

In the artificial incubation of Tilapia mossambica, fish-egg tends to pour in the collection seedling case when regulating the hatching pail current; Little also can the inflow in the collection seedling case of fish-egg density that the hatching middle and later periods is dead, impurity also can constantly be deposited in the collection seedling case.Return in the hatching pail and hatch in order to collect fish-egg in the collection seedling case, and reject dead ovum, the impurity ovum that prevents to live and infect water mold and bad water, at present, the general water of outwelling in the collection seedling case that adopts is chosen and is picked up the collection fish-egg; Or dead ovum, impurity etc. and the water method of reject together, labour intensity is big, and water wasting, time-consuming, and particularly difficulty operates when breeding in enormous quantities.

Summary of the invention

For limitation and the inefficiency problem that overcomes existing method of operating, the difficulty of dead ovum and impurity and recovery ovum alive is removed in solution under ovum grain situation in enormous quantities, the invention provides a kind of extractor, this extractor displacement volume is bigger, as required suck up impurity, dead ovum, the relatively poor fish seedling of swimming ability that lives ovum and just hatched.

Solving the technical scheme that its technical problem adopts is:

A kind of extractor comprises: body; Receiving flask, its bottle is installed in a body front end, and an outlet is arranged on the bottle, is used for discharging the absorption thing; Pressure reducer is made up of cylindrical shell and piston, is inlaid in the top body, and described cylindrical shell one end has two check valves that direction is opposite, and the piston group is made of piston and piston rod; Described cylindrical shell and piston rod are circular arc; Wireway connects pressure reducer and receiving flask; Power lever is sleeved on the bearing pin of body, and the one end is connected with piston rod.

According to extractor of the present invention, can draw ovum alive, dead ovum and impurity as required: fish-egg can flow into collection seedling case when hatching begins to regulate current, collect the ovum of living this moment: on the collection bottleneck, put suction tube, by hand-held extractor handle, finger is the pulling power lever constantly, drives pressure reducer work, and the receiving flask internal gas pressure is reduced, suction tube will be finished the work of drawing the ovum of living to the ovum inspiration receiving flask of being drawn alive; A certain amount of dead ovum of accumulation and impurity in middle and later periods collection seedling case are drawn dead ovum and impurity with the mode of above collection ovum alive.

Beneficial effect of the present invention: the invention has the beneficial effects as follows, can the selecteed absorption thing of disposable a large amount of absorptions, processing ease, conveniently moving, simple in structure.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the vertical face structural representation of pressure reducer.

In the drawings: 1-suction tube, 2-outlet, 3-receiving flask, 4-pressure reducer, 5-piston rod, 6-spring, 7-wireway, 8-body, 9-power lever, 10-finger pull, 11-pulls and refers to circle, 12-bearing pin, the just unidirectional valve of 13-, the anti-one-way cock of 14-, 15-piston.

Embodiment

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

Specific embodiment 1:

Referring to Fig. 1 and Fig. 2, receiving flask 3 is the front end of body 8, be used to store the water of suction and correspondingly drawn thing, outlet opening 2 is arranged above, have lid salable, be used for regularly discharging and draw thing, suction tube 1 connects receiving flask 3 by the mode of inserting, and pressure reducer 4 is made up of cylindrical shell and piston group, and the piston group is made up of piston 15 and piston rod 5, end at cylindrical shell has just unidirectional valve 13 and anti-one-way cock 14, opens and closes automatically by air pressure; Wireway 7 connects receiving flask 3 and pressure reducer 4.Power lever 9 is contained on the bearing pin 12, can drive the piston motion and make its homing by spring 6.Pull finger and pull 10, power lever 9 rotates extension spring 6 around bearing pin 12, and, cause pressure reducer 4 internal gas pressures to reduce by piston rod 5 pulling pistons 15, anti-check valve 14 is closed, positive check valve 13 is opened, and by wireway 7 receiving flask 3 internal gas pressures is reduced, and the fish-egg of living is sucked into receiving flask 3.When piston 15 to 16 positions, openhanded, spring 6 bounce-backs, at this moment, positive check valve 13 is closed, anti-check valve 14 is opened, and makes pressure reducer 4 interior gases be discharged from the external world, makes piston 15 get back to original state by piston rod 5 pullings.Finger is pulled repeatedly, continuous operation, and fish-egg is opened outlet 2 after drawing and finishing, and fish is put back into hatching pail.

Claims

1, a kind of extractor is characterized in that comprising:

Body;

Receiving flask is installed in a body front end, and one of outlet is arranged on the bottle;

Pressure reducer is made up of cylindrical shell and piston group, is inlaid in the top body;

Described cylindrical shell one end has two check valves that direction is opposite; The piston group is made of piston and piston rod;

Wireway connects pressure reducer and receiving flask;

Power lever is sleeved on the bearing pin of body, and the one end is connected with piston rod.

2,, it is characterized in that described cylindrical shell and piston rod are circular arc according to the described extractor of claim 1.