CN210112625U - Device for efficiently capturing shrimps - Google Patents

Abstract

The utility model discloses a device for efficiently capturing shrimps, which is formed by sequentially assembling a shrimp guiding net, a shrimp screening net and a shrimp collecting net, wherein a channel for shrimps to crawl is formed in the shrimp guiding net, the shrimp screening net and the shrimp collecting net; the shrimp guiding net is characterized in that a plurality of shrimp inlet openings are distributed on the surface of the shrimp guiding net, inward barbs are uniformly distributed on the periphery of the shrimp inlet openings, a plurality of shrimp screening holes are distributed on the surface of the shrimp screening net, one end of the shrimp screening net is connected with the shrimp guiding net, the other end of the shrimp screening net is sleeved on a plastic connecting pipe at one side end of the shrimp collecting net through a plastic connecting sleeve, the other side end of the shrimp collecting net extends along the circumferential direction to form the shrimp outlet net, at least one plastic supporting sheet extends out of the plastic connecting pipe from the end of the shrimp collecting net in a back direction, barbs facing the shrimp screening net are arranged on one end of the plastic connecting sleeve. The utility model discloses catch efficient, utensil fishing selectivity and convenient operation, use manpower sparingly work.

Description

Device for efficiently capturing shrimps

Technical Field

The utility model relates to a device for efficiently capturing shrimps, which belongs to the field of aquatic product fishing.

Background

The Crustacea of the phylum Arthropoda includes various species such as prawn and crayfish. The shrimp meat is delicious, has low fat, high protein and other nutritive values, and has continuously increased culture area and culture yield in China. With the development of the shrimp culture industry, the problem of catching shrimps in pond culture is increasingly prominent, the conventional shrimp cages used by fishermen are generally rectangular, the two sides of the shrimp cages are mutually crossed and provided with a plurality of inlets, and the middle tails of the two sides of the cages are provided with outlets. However, the growth speeds of the shrimps are not consistent, and the individual size difference of the shrimp seedlings cultured in the same batch is large after a period of culture, so that when a fisherman withdraws the conventional shrimp cage, a lot of young shrimps and young shrimps are often also collected, and in the face of the situation, the fisherman usually selects the shrimps and puts the shrimps back into the pond for continuous culture, so that the method not only consumes manpower, but also brings great damage to the shrimps, the death rate is high after returning to the pond, and fish catches in the shrimp cage are directly sold, so that the product specification and the yield of the shrimps on the market are influenced, and economic loss is brought. Moreover, with the conventional shrimp cage, the shrimps in the shrimp cage can be collected into the external container from the outlet only by taking out the whole shrimp cage, which is not simple and requires a lot of manpower. In view of the above, there is a need to develop a new device to solve the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device of shrimp is caught to high efficiency. The utility model discloses a catch shrimp device, simple structure, convenient operation, use manpower sparingly work, catch efficient and utensil and catch the selectivity.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a device for efficiently capturing shrimps is formed by sequentially assembling a shrimp guide net, a shrimp sieving net and a shrimp collecting net, a channel for shrimps to crawl is formed in the shrimp guide net, the shrimp sieving net and the shrimp collecting net, a plurality of shrimp inlet openings are distributed on the surface of the shrimp guide net, inverted whiskers facing the inner side of the shrimp guide net are uniformly distributed on the periphery of the shrimp inlet openings, a plurality of shrimp sieving holes are distributed on the surface of the shrimp sieving net, one end of the shrimp sieving net is connected with the shrimp guiding net, the other end of the shrimp sieving net is sleeved on a plastic connecting pipe at one side end of the shrimp collecting net through a plastic connecting sleeve, the other side end of the shrimp collecting net extends along the circumferential direction to form the shrimp outlet net, at least one plastic supporting sheet extends from the end of the plastic connecting pipe back to the shrimp collecting net, inverted whiskers facing the shrimp sieving net are arranged on the inner circumference of one end of the plastic connecting sleeve close to the shrimp collecting net, the distance from the connecting position of, the plastic connecting pipe is detachably connected with the plastic connecting sleeve.

Preferably, a plurality of strip-shaped films are attached to the inner wall of the shrimp collecting net close to one side of the shrimp outlet net.

Further, the plurality of strip films are arranged at intervals along the circumferential direction of the shrimp collecting net.

Preferably, the side of the shrimp collecting net away from the plastic connecting pipe is obliquely bent and extended.

Preferably, the plastic connecting pipe is away from the end face, the pipe diameter of the plastic connecting pipe is enlarged to form a reducing section, and the length from the end face of the reducing section to the head of the plastic supporting sheet is greater than L.

The beneficial effect who adopts above-mentioned device is: the shrimps enter the shrimp guiding net from the inverted beards, and the shrimps are difficult to escape from the device due to the inverted beards. And the shrimp sieving holes of the shrimp sieving net have smaller caliber, so that the young shrimps with smaller body sizes can leave the device, and the shrimps with body sizes close to the market specifications cannot escape from the device, thereby achieving the purpose of sieving and fishing specifications.

The beneficial effect who adopts above-mentioned device is: the shrimp screening net of the device can be movably connected with the shrimp collecting net, when the shrimps are harvested, the whole device does not need to be taken away from the water surface, and only force is needed to be applied to lift the shrimp collecting net out of the pond, so that the shrimps can be collected. When the shrimps are harvested, the shrimp collecting net can be separated from the shrimp screening net, and the inverted beards arranged on the movable joints at the tail ends of the shrimp screening net can prevent the shrimps in the shrimp screening net from escaping from the device. When the two nets are connected, the inverted beards are pressed down by the plastic support sheets to form a flat channel for the shrimps to smoothly enter the shrimp collecting net, and meanwhile, the length of the plastic support sheets is smaller than the distance between the connection part of the inverted beards and the plastic connecting sleeve and the end face of the plastic connecting sleeve, so that the shrimps cannot escape from a gap between the two nets due to the fact that the inverted beards are pressed down in advance in the connection process of the two nets.

Preferably, the length of the plastic connecting sleeve is less than the length from the end face of the reducer section to the head of the plastic supporting sheet.

Furthermore, the plastic support sheet is provided with through holes.

Furthermore, the surface of the plastic connecting pipe is provided with a through hole.

The further beneficial effects of the adoption are as follows: is convenient for the attachment and walking of the shrimp appendages.

The adoption of the further beneficial effects is as follows: collect shrimp net middle part to terminal subregion, along collection shrimp net circumference interval distribution the banding film, the film can reduce the resistance when falling the shrimp, reduces the attachment point of the in-process shrimp appendage of falling, but the shrimp can independently seek the collection shrimp net between the film again when crawling in collecting the shrimp net and be convenient for crawl, let the shrimp appendage have certain attachment point, make most shrimps crawl near out the shrimp net in the collection process. The effect of arranging the films at intervals along the circumferential direction of the shrimp collecting net is better than that of arranging the films along the radial direction of the shrimp collecting net, and the ring-shaped films can not play a role in reducing the resistance of falling shrimps.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of the junction of the shrimp sieving net and the shrimp collecting net in FIG. 1;

FIG. 3 is a schematic structural view of the separated shrimp sieving net and shrimp collecting net in FIG. 2;

1 shrimp guiding net, 2 shrimp sieving net, 3 shrimp collecting net, 4 shrimp inlet, 5 inverted beard, 6 shrimp sieving holes, 7 plastic connecting sleeves, 8 plastic connecting pipes, 8.1 reducing sections, 9 plastic supporting sheets, 9.1 through holes, 10 thin film parts and 11 shrimp outlet nets.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

A device for efficiently capturing shrimps, which comprises a cage-shaped shrimp guiding net 1, a shrimp screening net 2 and a shrimp collecting net 3, wherein the shrimp guiding net 1, the shrimp screening net 2 and the shrimp collecting net 3 are communicated in sequence,

a plurality of shrimp inlets 4 are arranged on the surface of the shrimp guiding net 1, and inverted whiskers 5 facing the inner side of the shrimp guiding net 1 are uniformly distributed around the shrimp inlets 4. The shrimp sieving net is characterized in that a plurality of shrimp sieving holes 6 are formed in the surface of the shrimp sieving net 2, a plastic connecting sleeve 7 is arranged at the tail end of the shrimp sieving net 2, and barbs 5 facing the shrimp guiding net 1 are uniformly distributed on the inner periphery of the plastic connecting sleeve 7. The inverted beard 5 is adhered to the glue on the inner wall of the plastic connecting sleeve 7, and the distance between the joint of the inverted beard 5 and the plastic connecting sleeve 7 and the end face of the plastic connecting sleeve 7 is L.

One end of the shrimp collecting net 3 is provided with a plastic connecting pipe 8, the other end of the shrimp collecting net 3 is bent and extended in an inclined mode, the plastic connecting pipe 8 is sleeved with a plastic connecting sleeve 7, the end portion of the plastic connecting pipe 8, back to the shrimp collecting net 3, extends out of at least one plastic supporting sheet 9, and the tail end of the shrimp sieving net is detachably connected with the top end of the shrimp collecting net through the plastic connecting sleeve 7 and the plastic connecting pipe 8. The pipe diameter of the plastic connecting pipe 8 far away from the end face is enlarged to form a reducing section 8.1, the length from the end face of the reducing section 8.1 to the head of the plastic supporting sheet 9 is greater than L, and the length of the plastic supporting sheet 9 is smaller than L. Through holes 9.1 are distributed on the surfaces of the plastic support sheet 9 and the plastic connecting pipe 8, so that the shrimps can conveniently use the appendages to contact the through holes 9.1 and climb to the shrimp collecting net 3 side along the plastic support sheet 9 and the plastic connecting pipe 8. The length of the plastic connecting sleeve 7 is less than the length from the end face of the diameter-variable section 8.1 to the head of the plastic supporting sheet 9, so that the shrimps can climb out of the plastic connecting sleeve, the end face of the diameter-variable section 8.1 can completely cover the plastic connecting sleeve 7 from the head of the plastic supporting sheet 9, and the attachments of the shrimps on the section can be conveniently attached.

The tail end of the shrimp collecting net 3 extends along the circumferential direction to form a shrimp outlet net 11, and a plurality of strip-shaped films 10 are attached to the inner wall of the shrimp collecting net 3 close to one side of the shrimp outlet net 11. The plurality of strip films 10 are arranged at intervals along the circumferential direction of the shrimp collecting net 3, the shrimp collecting net 3 is shaken to prevent appendages of shrimps from being clamped on the shrimp collecting net 3 in the process of inverting the shrimp collecting net 3 to pour the shrimps due to the existence of the films 10, and the shrimps can still climb to the end out of the shrimp net 11 by using the appendages due to the existence of the shrimp collecting net 3 at intervals among the films 10.

The operating personnel can place this device in the pond bottom that is close to pond limit, makes the leading shrimp net 1 and the screen shrimp net 2 of this device be located the pond bottom, and the shrimp net 3 that gathers is located the slope on pond limit or depends on the bamboo pole on, makes partial shrimp net 3 that gathers explore the surface of water, and this can be convenient for fish for shrimp net 3 and provide more dissolved oxygen for the shrimp crowd that gathers in the device.

The shrimps enter the shrimp guiding net 1 from a plurality of shrimp inlet openings 4 in the shrimp guiding net 1 through inverted whiskers 5 with large opening diameters and small opening diameters, then climb to the shrimp screening net 2 from the shrimp guiding net 1, pass through the shrimp screening holes 6 in the shrimp screening net 2, and allow young shrimps and young shrimps to climb out of the device, while the shrimps larger than the size of the shrimp screening net openings cannot leave through the net openings and continue to move forward to enter the shrimp collecting net 3, so that the aim of fishing selectivity is fulfilled. The shrimps with the body sizes close to the standard of the market enter the shrimp collecting net 3 from the shrimp sieving net 2, and the shrimp outlet net 11 of the shrimp collecting net 3 is tightly bound, so that the shrimps are collected in the shrimp collecting net 3.

After this device was placed a set time in the pond, operating personnel can be with album shrimp net 3 pull-up, collection shrimp net 3 and the separation of sieve shrimp net 2. The shrimp collecting net 3 is lifted out of the water surface, put on the shore and unbundled out of the shrimp net 11, and the shrimps collected in the shrimp collecting net 3 can be poured into a container. During the pouring into the container, the shrimp in the net 3 cannot attach through the film 10 and the appendages can only be poured out more quickly.

After the shrimp collecting net 3 is separated from the shrimp sieving net 2, the shrimps which have crawled into the shrimp sieving net 2 can only temporarily stay in the shrimp sieving net 2 due to the existence of the inverted beards 5 with large calibers and small insides, and cannot escape. After the shrimp is collected for one round, the plastic connecting pipe 8 of the shrimp collecting net 3 is aligned to the plastic connecting sleeve 7 of the shrimp sieving net 2, the plastic connecting sleeve 7 and the plastic connecting sleeve 7 are sleeved and connected by applying force, and after the connection is finished, the inverted beards 5 in the plastic connecting sleeve 7 can be pressed down by the plastic supporting sheet 9 connected with the plastic connecting pipe 8 of the shrimp collecting net 3, so that a channel leading to the shrimp collecting net 3 is formed again.

In specific use, the lengths of the shrimp guiding net 1, the shrimp screening net 2 and the shrimp collecting net 3 and the diameter of the shrimp screening holes 6 can be set according to practical conditions such as pond size, breeding variety and the like, and the number of the shrimp screening nets 2 and the shrimp collecting nets 3 can be designed according to the length of the shrimp guiding net 1.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. A device for efficiently capturing shrimps is characterized in that a shrimp guide net, a shrimp screening net and a shrimp collecting net are sequentially assembled, a channel for shrimps to crawl is formed in the shrimp guide net, the shrimp screening net and the shrimp collecting net, a plurality of shrimp inlet openings are distributed on the surface of the shrimp guide net, barbs facing the inner side of the shrimp guide net are uniformly distributed on the periphery of the shrimp inlet openings, a plurality of shrimp screening holes are distributed on the surface of the shrimp screening net, one end of the shrimp screening net is connected with the shrimp guide net, the other end of the shrimp screening net is sleeved on a plastic connecting pipe at one side end of the shrimp collecting net through a plastic connecting sleeve, the other side end of the shrimp collecting net extends along the circumferential direction to form the shrimp outlet net, at least one plastic supporting sheet extends from the end of the plastic connecting pipe back to the shrimp collecting net, barbs facing the shrimp screening net are arranged at one end of the plastic connecting sleeve close to the shrimp collecting net along the inner circumference, the distance from the connecting position of the barbs to the, the plastic connecting pipe is detachably connected with the plastic connecting sleeve.

2. An apparatus for catching shrimp as claimed in claim 1 wherein the shrimp collecting net has a plurality of strips of film attached to the inner wall of the shrimp net adjacent to the shrimp net.

3. An apparatus for efficiently catching shrimp as in claim 2 wherein the plurality of strips of said membrane are spaced circumferentially along the shrimp collecting net.

4. An apparatus for efficiently catching shrimps as claimed in claim 1, wherein the side of said shrimp collecting net away from said plastic connecting tube is bent and extended obliquely.

5. A device for catching shrimps as claimed in claim 1, wherein said plastic connecting tube is enlarged in diameter far from the end face to form a diameter-variable section, and the length from the end face of said diameter-variable section to the head of the plastic supporting piece is greater than L.

6. A device for efficiently catching shrimps as claimed in claim 1, wherein said plastic support plate is provided with through holes.

7. An efficient shrimp catching device as claimed in claim 1 wherein the plastic connecting tube has through holes on its surface.

8. The device for capturing shrimps as claimed in claim 1, wherein the length of said plastic connecting sleeve is less than the length from the end face of said variable diameter section to the head of said plastic supporting piece.

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