CN209914767U

CN209914767U - Device for hatching fish eggs

Info

Publication number: CN209914767U
Application number: CN201920302636.XU
Authority: CN
Inventors: 朱克诚; 张殿昌; 江世贵; 郭华阳; 张楠; 郭梁; 刘宝锁
Original assignee: Nanhai Institute Of Fisheries Chinese Academy Of Fisheries Sciences
Current assignee: Nanhai Institute Of Fisheries Chinese Academy Of Fisheries Sciences; South China Sea Fisheries Research Institute Chinese Academy Fishery Sciences
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2020-01-10
Anticipated expiration: 2029-03-11

Abstract

The utility model discloses a device for fish egg hatching, the device comprises a frame and a folding bag with an upper opening and a lower opening, the frame floats on the water surface, the upper port of the folding bag is connected with the frame, the lower port of the folding bag is provided with a counterweight, the counterweight makes the lower port of the folding bag sink into the water from top to bottom and makes the folding bag axially tensioned; the screen cloth is installed to the lower port of folding bag, be covered with a plurality of filtration pores on the screen cloth, it follows to filter the pore messenger breeds sewage and impurity the bottom discharge of device just prevents the roe outflow. The utility model has the advantages of simple integral structure, low manufacturing cost, convenient use, convenient storage and easy popularization and application.

Description

Device for hatching fish eggs

Technical Field

The utility model relates to a technical field of fish hatching equipment especially relates to a device for fish egg hatching.

Background

With the increasing demand of people on edible fishes, most of the edible fishes are caught only by the ocean and are difficult to meet the demand of people, so that most of the edible fishes are artificially cultured by combining with the continuously developed fish culture technology. At present, most of fertilized fish eggs generated after male and female parent fish pairing are hatched by adopting a common hatching device, the common hatching device is a reinforced concrete barrel, a water tank and a plastic water barrel, and the hatching device has the defects of rough inner wall surface, uneven water flow and more dead corners, so that the poor hatching environment is caused, and the low hatching rate of the fish eggs is reduced. For example, "patent number is CN201320596555.8, the name is roe hatching bucket", this roe hatching bucket includes fixed bolster, awl staving, screen panel, four corners support, retainer plate, drain pipe, inlet tube, awl rack, screen cloth etc. the device has solved hatching apparatus coarse surface, the uneven scheduling problem of rivers, but needs the combination of multiple accessory to get up just to use, and the structure is complicated, and is not simple and convenient to operate, and the roe hatching is unfavorable for accomodating after finishing, occupies a large amount of culture space.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device for roe hatching, the device overall structure is simple, low in manufacturing cost to be favorable to using widely.

The purpose of the utility model is realized through the following technical scheme:

the device for fish egg incubation is characterized by comprising a frame and a folding bag with an upper opening and a lower opening, wherein the frame floats on the water surface, the upper port of the folding bag is connected with the frame, the lower port of the folding bag is provided with a counterweight, and the counterweight enables the lower port of the folding bag to sink into the water from top to bottom and enables the folding bag to be axially tensioned; the screen cloth is installed to the lower port of folding bag, be covered with a plurality of filtration pores on the screen cloth, it follows to filter the pore messenger breeds sewage and impurity the bottom discharge of device just prevents the roe outflow.

On the basis of the technical scheme, the utility model discloses can do following improvement:

be equipped with many dead levers on the frame, the dead lever pass through the rope with the last port edge of folding bag is bound to convenient fixed folding bag.

The frame is a 'mouth' shaped plastic frame formed by connecting four plastic pipes end to end, and the right angle of the plastic frame is provided with the fixed rod.

The frame is a circular plastic frame formed by connecting a plastic pipe end to end, and the fixed rods are distributed with the axle center of the frame as the center of a circle and at equal angles.

The counterweight is a counterweight ring, which is concentrically arranged with the folding bag.

The counter weight ring comprises at least one plastic pipe connected end to end, fine sand is filled in the plastic pipe, so that the stress of the device is more average, and the stability of the device in water is increased.

The diameter of crossing the filtration pore is less than the diameter of roe to outside effective separation roe outflow device.

The edge of the mesh cloth is sewed up with the lower port of the folding bag.

The folding bag of the utility model is a woven bag or a sailcloth bag.

Compared with the prior art, the utility model discloses the technique has following advantage:

(1) the device for fish egg incubation has simple integral structure, low manufacturing cost, convenient use and convenient storage, thereby being beneficial to popularization and use;

(2) the device for fish egg incubation is provided with the frame floating on the water surface, the frame is connected with the folding bag, and the lower port of the folding bag is sunk into the water through the counterweight and is axially tensioned, so that the water flow in the device is smoother and more uniform, and the improvement of the incubation rate of fish eggs is facilitated;

(3) a port still installs the screen cloth under the folding bag for in device of roe hatching to impurity in the aquatic can in time be drained away, prevent the roe outflow.

Drawings

The invention will be described in detail with reference to the drawings and specific embodiments

FIG. 1 is a schematic structural diagram of an embodiment of the device for hatching fish eggs;

FIG. 2 is a schematic structural diagram of a second embodiment of the device for hatching fish eggs according to the present invention;

reference numbers on the drawings: 1-frame, 2-folding bag, 3-dead lever, 4-counterweight, 5-screen cloth.

Detailed Description

Example one

Referring to fig. 1, the device for hatching fish eggs of the present embodiment comprises a frame 1 and a folding bag 2, wherein the frame 1 is a plastic frame in a shape like a Chinese character 'kou' formed by connecting four plastic pipes end to end, a fixing rod 3 is installed at each right angle of the plastic frame, and the frame 1 floats on the water surface; the upper and lower openings of the folding bag 2 are formed, the cross section of the folding bag 2 is in a shape like a Chinese character 'kou', the edge of the upper port of the folding bag 2 is bound with a fixing rod 3 on the frame 1 through a rope, each edge of the lower port of the folding bag 2 is hung with a counterweight 4, the counterweight 4 is a counterweight block, the lower port of the folding bag 2 sinks into water from top to bottom under the action of gravity of the counterweight block, and meanwhile, the folding bag 2 is axially tensioned to form a cylindrical inner cavity, so that water in the device flows smoothly and uniformly, a water environment beneficial to fish egg incubation is formed, and the fish egg incubation rate is improved; the screen cloth 5 has been sewed up to the lower port of folding bag, is covered with a plurality of filtration holes on the screen cloth 5, filters the hole diameter and is less than the roe diameter, filters the hole and makes breed sewage and impurity discharge and prevent the roe outflow from the bottom of device.

When using the device in this implementation, put into the aquatic of breeding the pond earlier with this device, the last port of folding bag 2 binds with frame 1 and floats in the surface of water, port carry balancing weight submerged in the aquatic under, pour the roe into the device, top injected water from the device, the ovum of living can float in the surface of water, the ovum of dying can down sink, the sewage and the impurity that the hatching in-process produced are outside the filtration pore eduction gear from the screen cloth 5, therefore, the device overall structure for roe hatching in this embodiment is simple, low in manufacturing cost, high durability and convenient use, and convenient for storage is favorable to using widely.

The folding bag in the embodiment can adopt a woven bag or a canvas bag.

Example two

Referring to fig. 1, a device for hatching fish eggs comprises a frame 1 and a folding bag 2, wherein the frame 1 is a circular plastic frame formed by connecting a plastic pipe end to end, eight fixing rods 3 are arranged on the plastic frame, the fixing rods 3 are distributed in an equiangular mode by taking the axis of the frame 1 as the center of a circle, and the frame 1 floats on the water surface; the upper opening and the lower opening of the folding bag 2 are formed, the cross section of the folding bag 2 is circular, the edge of the upper port of the folding bag 2 is bound with a fixing rod 3 on the frame through a rope, a mesh 5 is sewn on the lower port of the folding bag 2, a plurality of filtering holes are fully distributed on the mesh 5, the diameter of each filtering hole is smaller than that of each roe, and breeding sewage and impurities are discharged from the bottom of the device through the filtering holes and prevented from flowing out of the roes; the lower port of folding bag 2 is equipped with counterweight 4, and counterweight 4 is the counterweight ring, and the counterweight ring is arranged with folding bag 2 with one heart and is installed on screen cloth 5, and folding bag 2's lower port from top to bottom sinks into aquatic under the action of gravity of counterweight ring, and simultaneously, the whole axial tensioning of folding bag 2 forms the cylinder inner chamber, makes the rivers flow in the device further smoothly and evenly to form the water environment that does benefit to the roe hatching, further improve the hatchability of roe.

When using the device in this implementation, put into the aquatic of breeding the pond earlier with this device, the last port of folding bag 2 binds with frame 1 and floats in the surface of water, the lower extreme is installed the counter weight ring on screen cloth 5 and is sunk in the aquatic, then pour the roe into the device in, the top injected water from the device, the ovum of living can float in the surface of water, the ovum of dying can be toward sinking, outside sewage and the impurity that the hatching in-process produced filtered the hole eduction gear from screen cloth 5, consequently, a device overall structure for roe hatching in this embodiment is simple, low in manufacturing cost, high durability and convenient use, and convenient storage is favorable to using widely.

The counterweight ring in the embodiment is a 'mouth' -shaped plastic ring, the plastic ring is surrounded by four plastic pipes which are connected end to end, fine sand is filled in the plastic pipes, and the weight of the counterweight ring can be flexibly adjusted by increasing or reducing the amount of the filled fine sand according to the actual use condition, so that the stress of the device is more even, and the stability of the device in water is improved.

The weight ring in this embodiment may also be a circular plastic ring surrounded by a plastic tube connected end to end.

The folding bag 2 in the embodiment can be a woven bag or a canvas bag.

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. The device for fish egg incubation is characterized by comprising a frame and a folding bag with an upper opening and a lower opening, wherein the frame floats on the water surface, the upper port of the folding bag is connected with the frame, the lower port of the folding bag is provided with a counterweight, and the counterweight enables the lower port of the folding bag to sink into the water from top to bottom and enables the folding bag to be axially tensioned; the screen cloth is installed to the lower port of folding bag, be covered with a plurality of filtration pores on the screen cloth, it follows to filter the pore messenger breeds sewage and impurity the bottom discharge of device just prevents the roe outflow.

2. An apparatus as claimed in claim 1, wherein the frame is provided with a plurality of fixing bars, the fixing bars being bound to the upper port edge of the folding bag by a rope.

3. The apparatus as claimed in claim 2, wherein the frame is a plastic frame in the shape of a square with four plastic tubes connected end to end, and the fixing rods are installed at right angles of the plastic frame.

4. An apparatus as claimed in claim 2, wherein said frame is a circular plastic frame formed by connecting a plastic tube end to end, and said fixing rods are equiangularly distributed around the axis of said frame.

5. An apparatus for fish egg hatching as claimed in claim 1 wherein said weight is a weight ring, said weight ring being concentrically disposed with said folded pocket.

6. An apparatus for fish egg hatching as claimed in claim 5 wherein said counterweight ring comprises at least one end-to-end plastic tube filled with fine sand.

7. An apparatus for fish egg hatching as claimed in claim 1 wherein the diameter of said filter apertures is less than the diameter of the fish eggs.

8. An apparatus for fish egg hatching as claimed in claim 1 wherein the edges of said mesh are sewn to the lower port of said folded bag.

9. Device for fish egg hatching as claimed in claim 1, wherein said folded bag is a woven bag or a sailcloth bag.