CN111316945A - Circulating water net cage culture device and method for fishing in divided areas - Google Patents

Abstract

A circulating water net cage culture device for fishing in a divided area comprises at least one culture tank, wherein one end of each culture tank is provided with an oxygen increasing and water pushing module, and the other end of each culture tank is provided with a sewage collecting module. The culture tank comprises a canvas tank body arranged in a buoyancy frame, and two ends of the canvas tank body are respectively fixed with a circulating airing net module; the circulating screen drying module comprises an annular screen which is arranged in a frame body and can be driven to form chain transmission, and the annular screen circularly moves for a certain distance to perform screen changing action; the culture tank is also internally provided with at least one dividing area module, and the canvas is divided into at least two areas by the dividing area cross rod; the oxygenation water pushing module is positioned on the outer side of the circulating net drying module and used for oxygenating the culture tank and pushing water; the sewage collecting module is communicated to a collecting area at the outer side of a flow guide area, and sewage pushed out of the culture tank enters the collecting area through the flow guide area and then is sucked to discharge the sewage. The invention can facilitate the fishing of the cage culture, can ensure the cleanness of the cage and oxygenation and water change, and has the functions of collecting and discharging sewage.

Description

Circulating water net cage culture device and method for fishing in divided areas

Technical Field

The invention belongs to the technical field of aquaculture net cages, and particularly relates to a circulating water net cage culture device and method for catching fish in a divided area.

Background

Cage culture is one of the main modes of aquaculture, large-scale marine culture in China is concentrated in the space range of shallow sea areas, the culture is greatly limited, and large-scale seawater resources cannot be well utilized, so that the expansion of aquaculture to larger sea areas is a current trend.

At present, the marine culture at home and abroad is mainly cage culture. Usually, the net cage has a large size, high strength and a net with the function of preventing the adhesion of fouling organisms begins to appear in the net cage culture. For such large cages, fishing of farmed fish is a difficult task. On the other hand, some netting attachment is serious, which affects the water circulation of the net cage, thereby hindering the growth of fish, and the net cage is difficult to clean.

Generally, before fish is cultured in a large net cage, a net is required to be gradually folded upwards, and when the depth of the net becomes shallow and the density of the fish is high, the fishing operation is started. However, most of the prior methods for retracting the netting have the problems of long operation time consumption, high labor intensity and the like, and the depth of the net cage is limited due to the problem of difficult net retraction, so that the current situation that marine products can only be cultured in shallow sea areas is caused.

The patent with publication number CN 206933018U discloses a large-scale fish culture net cage convenient for fishing and cleaning netting, the device supports a conical bottom net and a side netting to the water surface through buoyancy provided after a buoyancy pipe bin is inflated, the fishing is facilitated to a certain extent, but the weight borne by the netting is limited, and the implementation time is long.

The patent with publication number CN 202374876U discloses a novel net cage culture device, and the device replaces original flotation device and pavement with floating pipe, though can set up great pocket, does not solve the trouble problem of fishing, has to catch inconveniently, needs the problem of great manpower.

Disclosure of Invention

The invention aims to provide a circulating water cage culture device and method for fishing in a divided area, which can greatly facilitate the fishing of cage culture, ensure the cleanness of the cage and oxygenation and water change in culture and have the functions of timely collecting and discharging sewage.

In order to achieve the above purpose, the solution of the invention is:

a circulating water net cage culture device for fishing in a divided area comprises at least one culture tank, wherein one end of each culture tank is provided with an oxygen increasing and water pushing module, the other end is provided with a sewage collecting module, wherein,

the cultivation tank comprises a canvas tank body arranged in a buoyancy frame, two sides of the canvas tank body are fixed on two sides of the buoyancy frame, two ends of the canvas tank body are respectively fixed with a circulating net drying module, the canvas tank body comprises at least one row of sinking components connected to the bottom of canvas, the sinking components sink to the bottom of the canvas in a cultivation mode so that the middle of the canvas tank body forms a maximum cultivation space, and the sinking components move upwards in a catching mode;

the circular net drying module comprises a circular net which is arranged in a frame body and can be driven to form chain transmission, and the circular net moves circularly for a certain distance to perform net changing action, so that the net surface originally soaked in water is exposed out of the water surface, and the circular net drying is realized;

the culture tank is also internally provided with at least one dividing area module, the dividing area module comprises at least one row of dividing area cross rods fixed at the bottom of the canvas, each dividing area cross rod is connected with at least two cross rod pull ropes, one end of each cross rod pull rope is connected with the dividing area cross rod and then penetrates through the canvas, the other end of each cross rod pull rope is connected with the buoyancy frame, and each row of dividing area cross rods pulled up by the cross rod pull ropes divides the canvas into at least two areas;

the aeration water pushing module is positioned outside the circulating net drying module and comprises a plurality of nano tubes, wherein the nano tubes are arranged at the bottom of a support frame, the upper surfaces of the nano tubes are distributed with nano pores, an inclined top surface is arranged in the support frame and faces the circulating net drying module, and after air is fed to the nano tubes, bubbles generated from the nano pores rise to the inclined top surface and are rebounded to the culture tank, so that the culture tank is aerated and pushed with water;

the sewage collecting module is communicated to a collecting area at the outer side of a flow guide area, the inner side of the flow guide area is connected to the outer side of the circulating net drying module, the collecting area comprises a conical bottom surface formed at the bottom of a circular groove, a suction inlet is formed in the center of the conical bottom surface, sewage pushed out of the culture groove enters a collecting area through the flow guide area to form a water vortex, and dirt in the water is collected to the center and deposited to the bottom and then is sucked through the suction inlet to be discharged.

Further, the both sides of canvas bottom are equipped with one row of subassembly that sinks respectively, and the canvas cell body forms U type cell body, and each subassembly that sinks includes hangs one row of sand bag weight in the canvas bottom surface, and each sand bag weight is connected with the weight stay cord, and the extension of the weight stay cord other end is fixed to the buoyancy frame on.

Further, the buoyancy frame includes that the frame is floated to indulging of connecting many parallels between the frame is floated to the violently of two parallels, and the both sides of canvas cell body are fixed and are violently floated between the frame at two, and many draw regional horizontal poles tandem and form one row, respectively draw regional horizontal pole setting and indulge between the frame, and the upper end of horizontal pole stay cord is connected to and indulges on floating the frame.

Furthermore, each drawing area horizontal pole passes through the horizontal pole stay cord and the stay cord gasket is fixed in the canvas bottom, and each drawing area horizontal pole both ends all have the hole site, and the canvas is passed again after the horizontal pole stay cord passes the hole site and the stay cord gasket of drawing area horizontal pole, and horizontal pole stay cord upper end is connected with indulging the floating frame.

Furthermore, a plurality of nanotubes form a plurality of nanotube frames, each nanotube frame comprises a plurality of vertical nanotubes which are arranged side by side and connected between two transverse vent pipes, at least one vent pipe in each nanotube frame is communicated with a gas pipe, each gas pipe is communicated to one main gas pipe, and the main gas pipe is connected with an air blower.

Further, the side of the module that shines outside towards the circulation forms the face of opening in the support frame, and all the other lateral surfaces are equipped with the retaining surface, and the slope top surface is located the face rear side that opens, and a plurality of nanotube group are located slope top surface below in rows.

Furthermore, the diversion area comprises two side blocking surfaces and a bottom surface, the two side blocking surfaces are distributed on two sides of the right trapezoid outside the circulating net drying module, each side blocking surface is a canvas strip, and the upper edge of the canvas strip is connected to a pull belt with a floating ball.

Furthermore, the collecting region includes that it connects with the side canvas as the side face of keeping off to be connected with between the circular frame that is parallel about two, and the lower extreme that is located the circular frame of top forms one section net face rear connection side canvas that can drain, and the canvas strip of water conservancy diversion district both sides is then connected respectively to the both ends of side canvas, and the circular frame inside formation toper canvas that is located the below is as the toper bottom surface, and the center department of toper canvas forms a suction inlet, and a suction inlet intercommunication drinking-water pipe, a water pump is connected to the drinking-water pipe.

Further, the circulating net drying module comprises a frame body, a driving wheel shaft, a driven wheel shaft, an annular net, a driving module, a sliding rail and a chain type transmission belt; the driving wheel shaft and the driven wheel shaft are arranged at the top end and the bottom end of the frame body through bearing seats at two sides to form a tensioning support structure of an annular net, and the annular net surrounds between the driving wheel shaft and the driven wheel shaft and realizes rotation of the annular net through synchronous rotation of the driving wheel shaft and the driven wheel shaft; the driving module is arranged on one side of the driving wheel shaft to realize power transmission, and the driving module is connected with the shaft end of the driving wheel shaft to drive the driving wheel shaft to rotate; the sliding rails are arranged on two sides of the frame body and are kept on the same vertical line with the side edge of the annular net; the two chain type transmission belts positioned on two sides of the annular net are respectively arranged between the shaft ends of the driving wheel shaft and the driven wheel shaft, the inner sides of the chain type transmission belts are connected with the annular net, the outer sides of the chain type transmission belts are matched in the sliding rail, and the driving wheel shaft drives the chain type transmission belts to be limited in the sliding rail for transmission after rotating to drive the annular net to circularly move.

A circulating water cage culture method for catching fish in a delimited area adopts the circulating water cage culture device for catching fish in the delimited area, and the method specifically comprises the following steps:

step 1: in the breeding mode, the canvas groove body in the breeding groove is stretched by the sinking component, and the breeding space reaches the maximum;

step 2: when the cultivation mode is adopted, the aeration water pushing module and the sewage collecting module are started, aeration is carried out on the cultivation tank by the aeration water pushing module, dirt in the cultivation tank is pushed to the sewage collecting module, sewage pushed out of the cultivation tank enters the collecting area through the flow guide area to form a water vortex, the water vortex is formed, the dirt in the water is gathered to the center and deposited to the bottom, the dirt is sucked through the suction inlet to be discharged, and oxygen supply in the cultivation tank is guaranteed and the dirt is timely discharged;

and step 3: the circulating net drying modules are arranged at two ends of the culture tank, the upper part of the net surface of the annular net is exposed out of the water surface, the influence caused by aquatic green plants of algae on the annular net is eliminated in a water shortage and sunlight irradiation mode, the annular net is circularly moved for a certain distance through a driving action, net changing action is carried out, the net surface originally soaked in water is exposed out of the water surface, water shortage and sunlight irradiation are realized, and the cleanliness of the net surface is guaranteed through circulating net drying, so that the circulating water culture tank is formed;

and 4, step 4: in the fishing mode, cultured fishes in the culture tank need to be fished, the sinking assembly at the bottom of the canvas is pulled upwards, the transverse rod pull rope is tensioned upwards until the cross rod of the dividing area is arranged on the buoyancy frame, the transverse rod pull rope is fixed on the buoyancy frame, the canvas tank body is divided into at least two areas in V-shaped grooves on the water surface, the space of the canvas tank body is reduced to the minimum, and the cultured fishes are concentrated in the canvas tank body after the space is reduced so as to be convenient for fishing;

and 5: after fishing is finished, the cross rod pull rope fixed on the buoyancy frame is firstly released, so that the cross rod of the dividing area is positioned at the lower limit position, the sinking assembly is downwards released to the lower limit position, and the culture tank is positioned in a culture mode.

Compared with the prior art, the invention has the following advantages:

1. the canvas groove body space is reduced by upwards tensioning the cross rod pull ropes and driving the cross rods in the scratching area to move upwards to the buoyancy frame, and cultured fishes are gathered in the shallower canvas groove body and are convenient to catch.

2. Utilize the circulation to shine the net module, shine the net mode through stable controllable in turn and effectively solve the problem that microorganism adheres to the growth and piles up, guaranteed the cleanness of box with a net.

3. The aeration water-pushing module is utilized to promote water circulation in the net cage, the water changing function is realized in the culture process, and the dirt collecting module is utilized to collect and remove dirt generated in the culture tank in time to keep a good culture environment.

Drawings

FIG. 1 is a schematic perspective view of the present invention (with canvas omitted);

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 3A is an enlarged view of a portion of FIG. 3A;

FIG. 3B is a partial enlarged view of the portion B in FIG. 3;

FIG. 4 is a side view of a cultivation tank (cultivation state) in the present invention;

FIG. 5 is a side view of the cultivation tank of the present invention (a fishing state);

FIG. 6 is a schematic perspective view of a circulating screen module according to the present invention;

FIG. 7 is an exploded view of the circulating screen module of the present invention

FIG. 8 is a schematic structural diagram of one of the assembled columns in the circulating screen module;

FIG. 9 is an enlarged view of a portion of FIG. 7 at C (showing the blocks on the chain drive belt);

FIG. 10 is a schematic structural diagram of a driving sheave in the circulating net drying module;

FIG. 11 is a schematic structural view of an oxygen-increasing water-pushing module according to the present invention;

FIG. 12 is a partial enlarged view of the water dispenser of FIG. 2 (showing the oxygen-increasing water-pushing module);

FIG. 13 is an exploded view of the oxygen-increasing water-pushing module according to the present invention;

fig. 14 is a schematic structural view of the dirt collection module of the present invention.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

Referring to fig. 1 to 3, the present invention discloses a recirculating water cage culture apparatus for catching fish in a delimited area, which includes at least one culture tank 10, in this embodiment, two culture grasses are disposed side by side, one end of each culture tank 10 is provided with an oxygen-increasing water-pushing module 20, and the other end is provided with a dirt-collecting module 30.

The cultivation tank 10 includes a canvas tank body 12 arranged in a buoyancy frame 11, the buoyancy frame 11 in this embodiment is enclosed to form a rectangle, two sides of the canvas tank body 12 are fixed on two sides of the buoyancy frame 11, and two ends of the canvas tank body 12 are respectively fixed with a circulating airing net module 40. Meanwhile, the canvas groove body 12 comprises at least one row of sinking components connected to the bottom of the canvas 121, the sinking components sink to the bottom of the canvas in the breeding mode to enable the middle of the canvas groove body to form a maximum breeding space, and the sinking components move upwards and are pulled up in the fishing mode. Referring to fig. 2 to 5, in this embodiment, two rows of sinking components are respectively disposed on two sides of the bottom of the canvas 121, so that the canvas tank forms a U-shaped tank (as shown in fig. 4), each sinking component includes a row of sand bag weights 122 hung on the bottom surface of the canvas 121, each row of sand bag weights 122 is arranged in a row, and the number of the sand bag weights 122 in each row can be set according to the length of the canvas. Meanwhile, each sandbag weight 122 is connected to a weight pulling rope 123, and the other end of the weight pulling rope 123 is fixed to the buoyancy frame 11 in an extending manner. The floating frame 11 comprises a plurality of parallel longitudinal floating frames 112 connected between two parallel transverse floating frames 111, two sides of the canvas groove body 12 are fixed between the two transverse floating frames 111, and the upper end of a weight pulling rope 123 is connected to the transverse floating frames 111. When the culture tank is in a culture mode, the weight pull rope 123 is in an untensioned state, the two rows of sandbag weights 123 are hung at the lower limit position of the bottom end of the canvas 121, the canvas groove body 12 is a U-shaped groove body at the moment, and the activity space of cultured fishes reaches the maximum (as shown in fig. 4). In the fishing mode, the weight pulling rope 123 is first tightened to move the sandbag weight 122 upward by a certain distance before the weight pulling rope 123 is fixed on the buoyancy frame 11 (as shown in fig. 5).

As shown in fig. 2 and 3, at least one dividing module is further disposed in the cultivation tank 10, the dividing module includes at least one row of dividing cross bars 5 fixed at the bottom of the canvas 121, the plurality of dividing cross bars 5 are arranged in front of and behind one another to form a row, and a dividing cross bar 5 can be disposed between the two longitudinal floating frames 112. Each scribing region cross rod 5 is connected with at least two cross rod pull ropes 51, the cross rod pull ropes 51 can be positioned at two ends of the cross rod, one end of each cross rod pull rope 51 is connected with the scribing region cross rod 5 and then penetrates through the canvas 121, the other end of each cross rod pull rope 51 is connected with the longitudinal floating frame 112 in the buoyancy frame 11, and each row of scribing region cross rods 5 pulled by the cross rod pull ropes 51 divide the canvas into at least two regions. As shown in fig. 5, two rows of cross bars 5 are arranged in this embodiment, and the canvas tank body 12 can be divided into 3V-shaped grooves on the water surface, so that the space of the canvas tank body 12 is minimized, and the cultured fish is concentrated on the canvas tank body 12 with the reduced space, thereby facilitating the fishing. As shown in fig. 5, the scribing block cross bar 5 is fixed at the bottom end of the canvas 121 through a cross bar pulling rope 51 and a pulling rope pad 52, two ends of the scribing block cross bar 5 are provided with hole sites (not shown in the figure), the cross bar pulling rope 51 passes through the canvas 121 after passing through the hole sites of the scribing block cross bar 5 and the pulling rope pad 52, and the other end of the cross bar pulling rope 51 is connected with the longitudinal floating frame 112 of the floating frame middle 11.

The circulating net drying module 40 is located at two ends of the canvas groove body 12, and as shown in fig. 6 to fig. 10, the circulating net drying module 40 comprises a frame body 41, a driving wheel shaft 42, a driven wheel shaft 43, an annular net 44, a driving module (not shown in the figure), a slide rail 45 and a chain type transmission belt 46; wherein, the driving wheel axle 42 and the driven wheel axle 43 are arranged at the top end and the bottom end of the frame body through two side bearing blocks 421 and 431 to form a tensioning support structure of the annular net, and the annular net surrounds 44 between the driving wheel axle 42 and the driven wheel axle 43 and realizes the rotation of the annular net 44 through the synchronous rotation of the driving wheel axle 42 and the driven wheel axle 43. The driving module is arranged on one side of the driving wheel shaft 42 to realize power transmission, and the driving module is connected with the shaft end of the driving wheel shaft to drive the driving wheel shaft to rotate. The slide rails 45 are arranged on two sides of the frame body and are kept on the same vertical line with the side edges of the annular net 44, two chain type transmission belts 46 positioned on two sides of the annular net 44 are respectively arranged between the shaft ends of the driving wheel shaft 42 and the driven wheel shaft 43, the inner sides of the chain type transmission belts 46 are connected with the annular net 44, the outer sides of the chain type transmission belts are matched in the slide rails 45, and the driving wheel shaft 42 drives the chain type transmission belts 46 to be limited in the slide rails 45 for transmission after rotating so as to drive the annular net 44 to. The chain transmission belt 46 includes a slider 462 equidistantly disposed on the annular steel wire belt 461, the slider 462 is fitted to the shaft ends of the driving wheel shaft 42 and the driven wheel shaft 43, the driving slider 462 is driven to move circularly when the driving wheel shaft 42 and the driven wheel shaft 43 rotate, and a tab 4621 protruding from the slider 462 is fixed to the annular net 44. The slide rail 45 includes two tubular grooves 451 formed in two sides of the frame body 41, two long sides of the annular steel wire belt 461 are respectively penetrated and limited in the tubular grooves 451, a strip groove 452 for extending the lug 4621 of the slide block 462 is provided on the side surface of the tubular grooves 451 facing the annular net 44, the annular net 44 includes fixing holes (not shown) provided at equal intervals on two outer side edges of the annular net surface, and the fixing holes are connected with the slide block 462 in the chain type transmission belt 46. The driving wheel shaft 42 comprises a driving sheave 423 connected with two ends of a rotating pipe 422, a rotating shaft 4231 convexly arranged outside the driving sheave 423 is matched in the bearing seat 421, a guide groove 4232 for a chain type driving belt to wind through is formed in the circumferential surface of the driving sheave 423, and a plurality of clamping ports 4233 for sliding in and sliding out of the sliding blocks 662 are uniformly distributed on the side wall of the guide groove 4232 facing the annular net 44. The driven axle 43 includes a driven sheave 433 connected to both ends of a rotation tube 432, and the structure of the driven sheave 433 is identical to that of the driving sheave 423, and will not be described in detail.

When the circular net drying module 40 is used, the upper part of the net surface of the annular net 44 is exposed out of the water surface, and the influence caused by aquatic green plants of algae on the annular net is eliminated in the modes of water shortage and sunlight irradiation. The driving wheel shaft 42 is driven to rotate by the driving action of the driving module, the annular net 44 is driven to circularly move for a certain distance, the net changing action is carried out, the net surface originally soaked in water is exposed out of the water surface, and water shortage and sunlight irradiation are realized. Still can utilize drive module can control the instruction and realize automatic drive to can shine the net according to the net time demand of shining of difference, form once the circulation in the settlement time and shine the net, guarantee the cleanliness factor of wire side.

As shown in fig. 1 and 11 to 13, the oxygenation water pushing module 20 is located outside the circulating net drying module 40, the oxygenation water pushing module 20 includes a plurality of nanotubes 221 having nanopores distributed on the upper surface thereof at the bottom of a support frame 21, an inclined top surface 231 is provided in the support frame 21 facing the circulating net drying module, and after air is supplied from the outside, the nanotubes 221 are rebounded to the culture tank 12 when bubbles generated from the nanopores rise to the inclined top surface, thereby increasing oxygen and pushing water to the culture tank 12. In this embodiment, a plurality of nanotubes 211 are formed into a plurality of nanotube frames 22, each nanotube frame 22 includes two transverse air tubes 222 connected to and communicated with a plurality of vertically aligned nanotubes 221, at least one air tube 221 of each nanotube frame 22 is upwardly communicated with an air tube 223, each air tube 223 is communicated with a main air tube 224, and the main air tube 224 is connected with a blower 24. The support frame 21 is provided with a blocking cover 23, the side surface of the support frame 21 facing the circulating sunning module 40 forms an open surface, the rest outer side surfaces are provided with blocking surfaces, the inclined top surface 231 is positioned at the rear side of the open surface, and the plurality of nanotube groups 22 are positioned below the inclined top surface 231 in rows.

Referring to fig. 1 and 14, the dirt collecting module 30 is connected to a collecting region 32 at an outer side of a flow guiding region 31, the inner side of the flow guiding region 31 is connected to an outer side of the circulating sunning net module 40, so that the flow guiding region 31 forms a right trapezoid, the collecting region 32 includes a circular groove, a bottom of the circular groove forms a conical bottom surface, and a suction port is formed at a center of the conical bottom surface, so that sewage (dirt such as feces of fish in the breeding region) pushed out from the breeding groove 12 enters the collecting region through the flow guiding region to form a water vortex, the dirt in the water is gathered at the center and deposited at the bottom, and then the dirt is sucked by the suction port to.

As shown in the figure, the diversion area 31 includes two side blocking surfaces 311 and a bottom surface 312, the two side blocking surfaces are distributed on two sides of the right trapezoid outside the circulating net drying module 40, and the sewage pushed out from the culture tank 12 can form a vortex trend when entering the collection area in a manner of being wide in front and narrow in back and having diversion by the inclined surface. Each side wall 311 may be a canvas strip, the upper edge of which may be attached to a pull strap 33 with a float 331. The collecting area 32 comprises a side canvas 322 connected between two upper and lower parallel circular frames 321 as a side blocking surface. Meanwhile, the lower end of the circular frame 321 above forms a section of drainable net surface 323 and then is connected with the side canvas 322, two ends of the side canvas 322 are respectively connected with the canvas strips at two sides of the flow guide area 31, the net surface 323 can facilitate drainage, and water flow is prevented from being blocked by the side canvas 322 and cannot be drained away. The cone canvas 34 is formed inside the lower circular frame as a tapered bottom surface (as can be seen in connection with fig. 3), and dirt in the water is gathered to the center and deposited to the bottom. A suction inlet 341 is formed at the center of the canvas 34, the suction inlet 341 communicates with a suction pipe 342, and the suction pipe 342 is connected to a water pump (not shown) for further sucking and removing the deposition waste deposited in the sewage.

Based on the circulating water net cage culture device for catching fish in the divided area, the invention also discloses a circulating water net cage culture method for catching fish in the divided area, which comprises the following specific steps:

step 1: in the breeding mode, the canvas groove body in the breeding groove is stretched by the sinking component, and the breeding space reaches the maximum;

step 2: when the cultivation mode is adopted, the aeration water pushing module and the sewage collecting module are started, aeration is carried out on the cultivation tank by the aeration water pushing module, dirt in the cultivation tank is pushed to the sewage collecting module, sewage pushed out of the cultivation tank enters the collecting area through the flow guide area to form a water vortex, the dirt in the water is gathered to the center and deposited to the bottom, the dirt is sucked through the suction inlet to be discharged, and the oxygen supply in the cultivation tank is ensured and the dirt is timely discharged;

and step 3: the circulating net drying modules are arranged at two ends of the culture tank, the upper part of the net surface of the annular net is exposed out of the water surface, the influence caused by aquatic green plants of algae on the annular net is eliminated in a water shortage and sunlight irradiation mode, the annular net is circularly moved for a certain distance through a driving action, net changing action is carried out, the net surface originally soaked in water is exposed out of the water surface, water shortage and sunlight irradiation are realized, and the cleanliness of the net surface is guaranteed through circulating net drying, so that the circulating water culture tank is formed;

and 4, step 4: in the fishing mode, cultured fishes in a culture tank need to be fished, a sinking assembly at the bottom of the canvas is pulled upwards, namely a weight pull rope is pulled upwards, so that a sand bag weight moves upwards for a certain distance, the canvas does not bear downward pulling force any more, then a cross rod pull rope is pulled upwards, the cross rod pull rope is fixed on the buoyancy frame until a cross rod of a dividing area is arranged on the buoyancy frame, the canvas groove body is divided into at least two areas in V-shaped grooves on the water surface, the space of the canvas groove body is reduced to the minimum, and the cultured fishes are concentrated in the canvas groove body with the reduced space so as to be convenient for fishing;

and 5: after fishing is finished, the cross rod pull rope fixed on the buoyancy frame is firstly released, so that the cross rod of the dividing area is positioned at the lower limit position, the sinking assembly is downwards released to the lower limit position, and the culture tank is positioned in a culture mode.

Compared with the prior art, the invention has the following advantages:

1. the canvas groove body space is reduced by upwards tensioning the cross rod pull ropes and driving the cross rods in the scratching area to move upwards to the buoyancy frame, and cultured fishes are gathered in the shallower canvas groove body and are convenient to catch.

2. Utilize the circulation to shine the net module, shine the net mode through stable controllable in turn and effectively solve the problem that microorganism adheres to the growth and piles up, guaranteed the cleanness of box with a net.

3. The aeration water-pushing module is utilized to promote water circulation in the net cage, the water changing function is realized in the culture process, and the dirt collecting module is utilized to collect and remove dirt generated in the culture tank in time to keep a good culture environment.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims (10)

1. The utility model provides a circulating water box with a net breeding device of subregion fishing which characterized in that: comprises at least one culture tank, one end of each culture tank is provided with an oxygen increasing and water pushing module, the other end is provided with a sewage collecting module, wherein,

the cultivation tank comprises a canvas tank body arranged in a buoyancy frame, two sides of the canvas tank body are fixed on two sides of the buoyancy frame, two ends of the canvas tank body are respectively fixed with a circulating net drying module, the canvas tank body comprises at least one row of sinking components connected to the bottom of canvas, the sinking components sink to the bottom of the canvas in a cultivation mode so that the middle of the canvas tank body forms a maximum cultivation space, and the sinking components move upwards in a catching mode;

the circular net drying module comprises a circular net which is arranged in a frame body and can be driven to form chain transmission, and the circular net moves circularly for a certain distance to perform net changing action, so that the net surface originally soaked in water is exposed out of the water surface, and the circular net drying is realized;

the culture tank is also internally provided with at least one dividing area module, the dividing area module comprises at least one row of dividing area cross rods fixed at the bottom of the canvas, each dividing area cross rod is connected with at least two cross rod pull ropes, one end of each cross rod pull rope is connected with the dividing area cross rod and then penetrates through the canvas, the other end of each cross rod pull rope is connected with the buoyancy frame, and each row of dividing area cross rods pulled up by the cross rod pull ropes divides the canvas into at least two areas;

the aeration water pushing module is positioned outside the circulating net drying module and comprises a plurality of nano tubes, wherein the nano tubes are arranged at the bottom of a support frame, the upper surfaces of the nano tubes are distributed with nano pores, an inclined top surface is arranged in the support frame and faces the circulating net drying module, and after air is fed to the nano tubes, bubbles generated from the nano pores rise to the inclined top surface and are rebounded to the culture tank, so that the culture tank is aerated and pushed with water;

the sewage collecting module is communicated to a collecting area at the outer side of a flow guide area, the inner side of the flow guide area is connected to the outer side of the circulating net drying module, the collecting area comprises a conical bottom surface formed at the bottom of a circular groove, a suction inlet is formed in the center of the conical bottom surface, sewage pushed out of the culture groove enters a collecting area through the flow guide area to form a water vortex, and dirt in the water is collected to the center and deposited to the bottom and then is sucked through the suction inlet to be discharged.

2. The circulating water cage culture device for fishing in a divided area as claimed in claim 1, wherein: the both sides of canvas bottom are equipped with one row of subassembly that sinks respectively, and the canvas cell body forms U type cell body, and each subassembly that sinks includes hangs one row of sand bag weight in the canvas bottom surface, and each sand bag weight is connected with the weight stay cord, and the extension of the weight stay cord other end is fixed to the buoyancy frame on.

3. The chain type net changing device for seawater pond circulating water cage culture as claimed in claim 1, wherein: the buoyancy frame includes and violently floats the frame in the indulging of connecting many parallels between the frame at two parallels, and the both sides of canvas cell body are fixed and are violently floated between the frame at two, and many are drawn regional horizontal pole tandem and are formed one row, and each is drawn regional horizontal pole setting and indulges between the frame at two, and the upper end of horizontal pole stay cord is connected to indulges on floating the frame.

4. The circulating water cage culture device for fishing in a divided area as claimed in claim 3, wherein: each area horizontal pole of drawing passes through the horizontal pole stay cord and the stay cord gasket is fixed in the canvas bottom, and each area horizontal pole both ends of drawing all have the hole site, and the canvas is passed again after the horizontal pole stay cord passes the hole site and the stay cord gasket of area horizontal pole of drawing, and horizontal pole stay cord upper end is connected with indulging the floating frame.

5. The circulating water cage culture device for fishing in a divided area as claimed in claim 1, wherein: the nano-tubes form a plurality of nano-tube frames, each nano-tube frame comprises a plurality of vertical and side-by-side nano-tubes which are connected and communicated between two transverse vent pipes, at least one vent pipe in each nano-tube frame is communicated with a gas pipe, each gas pipe is communicated to one main gas pipe, and the main gas pipe is connected with an air blower.

6. The circulating water cage culture device for fishing in a divided area as claimed in claim 5, wherein: the side of shining outer module towards the circulation in the support frame forms the face of opening, and all the other lateral surfaces are equipped with the retaining surface, and the slope top surface is located the face rear side of opening, and a plurality of nanotube group are located slope top surface below in rows.

7. The circulating water cage culture device for fishing in a divided area as claimed in claim 1, wherein: the diversion area comprises two side blocking surfaces and a bottom surface, the two side blocking surfaces are distributed on two sides of the right trapezoid outside the circulating net drying module, each side blocking surface is a canvas strip, and the upper edge of the canvas strip is connected to a pulling belt with a floating ball.

8. The circulating water cage culture device for fishing in a divided area as claimed in claim 7, wherein: the collecting region includes and is connected with the side canvas as the side face of keeping off between the circular frame that is parallel about two, and the lower extreme that is located the circular frame of top forms one section net face back connection side canvas that can drain, and the canvas strip of water conservancy diversion district both sides is then connected respectively to the both ends of side canvas, and the circular frame inside formation toper canvas that is located the below is as the toper bottom surface, and the center department of toper canvas forms one and inhales the mouth, inhales a suction inlet intercommunication drinking-water pipe, a water pump is connected to the drinking-water pipe.

9. The circulating water cage culture device for fishing in a divided area as claimed in claim 1, wherein: the circulating net drying module comprises a frame body, a driving wheel shaft, a driven wheel shaft, an annular net, a driving module, a sliding rail and a chain type transmission belt; the driving wheel shaft and the driven wheel shaft are arranged at the top end and the bottom end of the frame body through bearing seats at two sides to form a tensioning support structure of an annular net, and the annular net surrounds between the driving wheel shaft and the driven wheel shaft and realizes rotation of the annular net through synchronous rotation of the driving wheel shaft and the driven wheel shaft; the driving module is arranged on one side of the driving wheel shaft to realize power transmission, and the driving module is connected with the shaft end of the driving wheel shaft to drive the driving wheel shaft to rotate; the sliding rails are arranged on two sides of the frame body and are kept on the same vertical line with the side edge of the annular net; the two chain type transmission belts positioned on two sides of the annular net are respectively arranged between the shaft ends of the driving wheel shaft and the driven wheel shaft, the inner sides of the chain type transmission belts are connected with the annular net, the outer sides of the chain type transmission belts are matched in the sliding rail, and the driving wheel shaft drives the chain type transmission belts to be limited in the sliding rail for transmission after rotating to drive the annular net to circularly move.

10. A method for culturing a circulating water cage for fishing in a divided area, which adopts the circulating water cage culture device for fishing in the divided area as claimed in any one of claims 1 to 9, and comprises the following steps:

step 1: in the breeding mode, the canvas groove body in the breeding groove is stretched by the sinking component, and the breeding space reaches the maximum;

step 2: when the cultivation mode is adopted, the aeration water pushing module and the sewage collecting module are started, aeration is carried out on the cultivation tank by the aeration water pushing module, dirt in the cultivation tank is pushed to the sewage collecting module, sewage pushed out of the cultivation tank enters the collecting area through the flow guide area to form a water vortex, the dirt in the water is gathered to the center and deposited to the bottom, the dirt is sucked through the suction inlet to be discharged, and the oxygen supply in the cultivation tank is ensured and the dirt is timely discharged;

and step 3: the circulating net drying modules are arranged at two ends of the culture tank, the upper part of the net surface of the annular net is exposed out of the water surface, the influence caused by aquatic green plants of algae on the annular net is eliminated in a water shortage and sunlight irradiation mode, the annular net is circularly moved for a certain distance through a driving action, net changing action is carried out, the net surface originally soaked in water is exposed out of the water surface, water shortage and sunlight irradiation are realized, and the cleanliness of the net surface is guaranteed through circulating net drying, so that the circulating water culture tank is formed;

and 4, step 4: in the fishing mode, cultured fishes in the culture tank need to be fished, the sinking assembly at the bottom of the canvas is pulled upwards, the transverse rod pull rope is tensioned upwards until the cross rod of the dividing area is arranged on the buoyancy frame, the transverse rod pull rope is fixed on the buoyancy frame, the canvas tank body is divided into at least two areas in V-shaped grooves on the water surface, the space of the canvas tank body is reduced to the minimum, and the cultured fishes are concentrated in the canvas tank body after the space is reduced so as to be convenient for fishing;

and 5: after fishing is finished, the cross rod pull rope fixed on the buoyancy frame is firstly released, so that the cross rod of the dividing area is positioned at the lower limit position, the sinking assembly is downwards released to the lower limit position, and the culture tank is positioned in a culture mode.

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