Self-cleaning aquaculture tank and aquaculture workboat applying the same

Abstract

The self-cleaning aquaculture tank and the aquaculture workboat applying the aquaculture tank of the present invention propose an underwater automatic cleaning device. The cleaning device can move and clean all the time or regularly during the aquaculture process inside the tank body, without affecting the feeding, growth and catching of aquaculture organisms, and can clean the inner cavity of the tank body at any time and isolate the attachment of attached organisms, so as to effectively improve the cleanliness of the inner cavity of the tank body, enhance the automatic management of aquaculture operations and improve the aquaculture efficiency and output. The self-cleaning aquaculture tank includes a frame assembly. A hollow middle column is vertically arranged in the inner cavity of the frame assembly. A lifting cleaning assembly that can move up and down vertically along the outer diameter of the middle column and clean the surface of the side plate is sleeved along the middle column. The lifting cleaning assembly has a horizontally arranged lifting frame, and several fish driving openings are formed in the lifting frame. A brush is arranged on the outer edge of the lifting frame, and the brush cleans the surface of the side plate when the lifting frame moves up and down vertically.

Description

Technical Field

[0001] The present invention relates to a culture tank capable of automatically cleaning the inner cavity and a culture workboat using such a culture tank, belonging to the technical field of aquaculture. Background Art

[0002] At present, the existing flowing water culture and recirculating water culture technologies have been widely promoted and used in the aquaculture industry. Based on the culture containers, feed feeding, and water treatment equipment in a specific space, the culture water environment can be improved accordingly, the culture density of water bodies can be increased, and ultimately higher growth rates and yields can be obtained.

[0003] When the existing culture tank body is applied to large ship-type deep-sea fishery culture, there is still no effective solution for the regular cleaning and maintenance of the inner cavity of the tank body. Seawater culture will inevitably face the problem of marine fouling organisms. In particular, aquatic organisms such as barnacles with strong reproductive ability, short growth cycles, and large adhesion forces are usually difficult to completely remove by using high-pressure water guns or underwater robots. If manual cleaning is adopted, the workload and operation difficulty are both large, and the culture tank often needs to be emptied first, thus affecting the culture cycle and yield of the workboat or deep-sea platform.

[0004] In view of this, this patent application is specifically proposed. Summary of the Invention

[0005] The self-cleaning culture tank and the culture workboat using the culture tank of the present invention are proposed to solve the problems existing in the above-mentioned prior art by providing an underwater automatic cleaning device. The cleaning device can move and clean full-time or regularly during the internal culture process of the tank body, which not only does not affect the feeding, growth, and catching of cultured aquatic organisms, but also can clean the inner cavity of the tank body at any time, isolate the settlement of fouling organisms, and thus effectively improve the cleanliness of the inner cavity of the tank body, enhance the automatic management of culture operations, and achieve the design purposes of improving culture efficiency and yield.

[0006] To achieve the above design purposes, the self-cleaning culture tank includes a frame assembly formed by sequentially splicing several side plates and a bottom plate, with a closed cavity inside; a hollow intermediate column is vertically arranged in the inner cavity of the frame assembly, and a bridge is horizontally connected to the top of the inner cavity of the frame assembly; a lifting cleaning assembly that can move vertically and clean the surface of the side plates is sleeved on the outer diameter of the intermediate column; the lifting cleaning assembly has a horizontally arranged lifting frame, and the outer dimension of the lifting frame is the same as the horizontal cross-section of the inner cavity of the frame assembly; several rectangular fish driving openings through which aquatic organisms can pass are opened on the lifting frame; a first hole is provided along the horizontal center of the lifting frame, and the intermediate column is vertically sleeved in the first hole; a brush is arranged on the outer edge of the lifting frame, and under the drive of the lifting drive device, the brush cleans the surface of the side plates when the lifting frame moves vertically up and down.

[0007] Further, the first water inlet pipe of the array is vertically installed at the bottom of the bridge frame. The bottom of the first water inlet pipe is closed and does not contact the bottom plate of the frame assembly. A plurality of water inlets are opened on its side wall. After the aquaculture water enters the first water inlet pipe, it is discharged into the inner cavity of the frame assembly through the water inlets; a plurality of second holes equal in number to the first water inlet pipe are provided on the lifting frame, and the first water inlet pipe is vertically sleeved in the corresponding second holes; at least one set of lifting rollers is provided on the side of each second hole, and the lifting rollers rollingly fit on the outer side of the first water inlet pipe and can rotate around a fixed axis.

[0008] Further, the lifting drive device includes a first steel cable assembly, which consists of a first winch and a first steel cable; one end of the first steel cable is wound around the output shaft of the first winch, and the other end of the first steel cable is fixedly connected to the bridge frame. The first winch is fixedly installed on the bridge frame; the first steel cable is a flexible body, and two vertically distributed folding parts are formed between the horizontal extension parts of the first steel cable head and the second steel cable head; a plurality of pulleys are provided on the lifting frame, and these pulleys are respectively connected by folding to the folding part distributed at the vertical bottom layer formed between the horizontal extension parts of the first steel cable head and the second steel cable head; a plurality of pulleys are provided at the bottom of the bridge frame, and these pulleys are respectively connected by folding to the folding part distributed at the vertical top layer formed between the horizontal extension parts of the first steel cable head and the second steel cable head.

[0009] Further, among the plurality of pulleys provided at the bottom of the bridge frame, some pulleys are axially positioned in the horizontal direction, and some pulleys are axially positioned in the vertical direction.

[0010] Further, a bottom cleaning assembly that can rotate around the vertical center by a fixed axis is sleeved at the bottom of the middle column 2; the bottom cleaning assembly includes a rotating ring slidably sleeved on the outside of the middle column and a bottom cleaning transmission assembly that drives the rotating ring to rotate around the vertical center of the middle column; for the rotating ring, one ends of two groups of first rotating arms are symmetrically connected to its outer circumference, and one ends of a group of second rotating arms are connected to the other ends of each group of first rotating arms. The other ends of the second rotating arms are axially provided with third rollers that rollingly contact the side plate of the frame assembly. At the same time, a group of tension springs are also connected between the sides of each group of first rotating arms and second rotating arms on the same side; brushes are installed at the bottoms of the first rotating arms and the second rotating arms.

[0011] Further, several first rollers that rollingly contact the bottom plate of the frame assembly are installed at the bottom of the rotating ring, and several second rollers that rollingly contact the bottom plate of the frame assembly are axially provided on the side of the first rotating arm; when the rotating ring rotates around the vertical center of the middle column, the rotating ring drives the first rotating arm and the second rotating arm to rotate synchronously clockwise or counterclockwise, and at the same time, the brush can reciprocally and cyclically clean the surface of the bottom plate of the frame assembly.

[0012] Further, a circle of internal teeth is provided on the inner circumference of the swivel ring. The bottom cleaning transmission assembly includes a third reduction motor, a rotating shaft connected to the driving end of the third reduction motor, and a transmission gear sleeved on the rotating shaft. The transmission gear is meshed and connected to the internal teeth.

[0013] Further, several first slots are provided on the lifting frame. When the lifting frame vertically ascends and descends, the diversion plate on the side wall of the middle column penetrates through the corresponding first slots.

[0014] On the basis of applying the above self-cleaning aquaculture bin structure design, the present application also proposes a new type of aquaculture workboat, which includes a hull, an upper deck located at the top of the hull, and a cabin formed by fixedly connecting a shipboard located at the bottom of the inner cavity of the hull; several aquaculture bins are installed on the upper deck, and the frame assembly of each aquaculture bin is fixedly connected to the upper deck separately.

[0015] Further, several aquaculture bins are installed on the shipboard, and several frame assemblies are spliced and combined into an integrated aquaculture bin body structure, and the side plates of adjacent frame assemblies are shared.

[0016] In summary, the self-cleaning aquaculture bin and the aquaculture workboat applying this aquaculture bin proposed in the present application have the following advantages:

[0017] 1. The present application proposes improvements and optimizations for the immersion type three-dimensional aquaculture of various types of aquatic organisms, and adopts an underwater automatic cleaning method for the cleaning and maintenance problems of the inner cavity of the bin. It not only eliminates the need for manual operation and intervention, but also does not affect the aquaculture cycle; on the basis of not requiring other operating equipment and emptying the aquaculture bin, it is applicable to workboats or other deep-sea and far-sea aquaculture platforms, with a shorter aquaculture cycle and higher output.

[0018] 2. The automatic cleaning device proposed in the present application can operate full-time or regularly during the aquaculture cycle, effectively solving the problem of the reproduction and growth of aquatic attachments, and is particularly effective in removing attachment organisms such as barnacles.

[0019] 3. The automatic cleaning device proposed in the present application will not damage or affect the aquaculture water environment, is conducive to simulating a more similar aquaculture space environment to the natural water body, thereby improving the adaptability and survival comfort of aquatic organisms, and effectively increasing the aquaculture output. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application scheme will be further described in conjunction with the following drawings;

[0021] Figure 1 is an isometric view of an aquaculture bin adopting an automatic cleaning device;

[0022] Figure 2 is Figure 1 the partial enlarged view at A in

[0023] Figure 3 is an isometric view of the frame assembly;

[0024] Figure 4 is Figure 3 a partial enlarged view at position B in

[0025] Figure 5 is Figure 3 a partial enlarged view at position C in

[0026] Figure 6 is Figure 3 a partial enlarged view at position D in

[0027] Figure 7 is Figure 3 a partial enlarged view at position E in

[0028] Figure 8 is the bottom isometric view of the frame assembly;

[0029] Figure 9 is Figure 8 a partial enlarged view at position F in

[0030] Figure 10 is the front sectional view of the frame assembly;

[0031] Figure 11 is Figure 10 a partial enlarged view at position G in

[0032] Figure 12 is the view of the first cable assembly;

[0033] Figure 13 is Figure 12 a partial enlarged view at position I in

[0034] Figure 14 is the structural schematic diagram of the cleaning lifting frame;

[0035] Figure 15 is Figure 14 a partial enlarged view at position J in

[0036] Figure 16 is Figure 14 a partial enlarged view at position K in

[0037] Figure 17 is Figure 14 a partial enlarged view at position L in

[0038] Figure 18 is the structural schematic diagram of the bottom cleaning assembly;

[0039] Figure 19 is Figure 18 a partial enlarged view at position M in

[0040] Figure 20 is Figure 18 The partial enlarged view at position N in the figure;

[0041] Figure 21 is Figure 18 The partial enlarged view at position O in the figure;

[0042] Figure 22 It is a schematic structural view of the bottom cleaning transmission assembly;

[0043] Figure 23 is as Figure 14 The bottom isometric view of the frame structure shown;

[0044] Figure 24 is Figure 23 The partial enlarged view at position P in the figure;

[0045] Figure 25 is Figure 23 The partial enlarged view at position Q in the figure;

[0046] What W1 points to in the figure is the aquaculture water level Detailed implementation manners

[0047] The self-cleaning aquaculture tank proposed in this application can be set in onshore aquaculture facilities or inside deep-sea aquaculture vessels and aquaculture platforms for culturing various types of aquatic organisms. In the said self-cleaning aquaculture tank, the whole-cycle aquaculture, automatic sorting and harvesting operations from fry to harvesting can be realized, and the water depth, oxygen concentration and other indicators inside the tank body can be adjusted according to the aquaculture plan, so as to realize dynamic and refined aquaculture management.

[0048] Example 1, as Figures 1 to 25 shown, the said self-cleaning aquaculture tank includes a frame assembly 100 formed by sequentially splicing several side plates 101 and a bottom plate, with a closed cavity inside. The frame assembly 100 can be integrally connected to the deck of the vessel, embedded in the cabin of the vessel, or installed on the shore for use; the frame 101 is a polyhedron structure as an octagonal prism shape in the figure;

[0049] A hollow middle column 102 is vertically arranged in the inner cavity of the frame assembly 100, and a bridge 103 for laying equipment and allowing operators to walk and stand is horizontally connected to the top of the inner cavity of the frame assembly 100; in this embodiment, the bridge 103 is a cross-shaped structure, and each end of the bridge 103 is connected to the frame assembly 100 of the vessel or an adjacent aquaculture tank through the side plate 101;

[0050] A feeding assembly 200 is installed on the bridge 103, which includes a hopper and a feeding pipe communicating with the hopper. A stirring assembly that rotates axially is arranged inside the feeding pipe, and several feeding ports are arranged along the axial direction on the side wall of the feeding pipe; when the stirring assembly operates, the bait added from the hopper moves in the feeding pipe and is then respectively thrown out from the feeding ports into the breeding water body below.

[0051] An elevating cleaning assembly 400 that can move up and down vertically along the outer diameter of the middle column 102 to clean the surface of the side plate 101 and a bottom cleaning assembly 500 that can rotate around the vertical center axis to clean the surface of the bottom plate are respectively sleeved.

[0052] The top end of the middle column 102 is connected through the bridge 103, and its bottom end is connected through the bottom plate of the frame assembly 100 and communicates with the water inlet end of the overflow pipe 107. The water outlet end of the overflow pipe 107 is located outside the frame assembly 100.

[0053] A plurality of groups of residual bait through holes 106 are arranged on the side wall of the middle column 102 to introduce the residual bait in the inner cavity of the frame assembly 100 into the middle column 102, and then flow out of the inner cavity of the frame assembly 100 through the overflow pipe 107 with the water flow to keep the internal breeding environment relatively clean.

[0054] A plurality of groups of flow guiding plates 105 are symmetrically arranged on the side wall of the middle column 102 along its vertical center line. When circulating water is injected into the inner cavity of the frame assembly 100, a directional water flow with a certain flow direction and flow rate can be assisted to form through the blocking and pushing-back effects of the flow guiding plates 105, thereby improving the effect of simulating the real aquatic environment.

[0055] A fish outlet 126 is formed horizontally and annularly at the side of the connection between the middle column 102 and the bottom plate. Dead aquatic organisms can enter the overflow pipe 107 through the fish outlet 126 under the action of the water flow and are finally discharged.

[0056] A plurality of groups of first water inlet pipes 104 are vertically distributed in the inner cavity of the frame assembly 100. The side of each group of first water inlet pipes 104 is connected through the side plate 101 and a second water inlet pipe 110 is connected to the outer end. The top of the first water inlet pipe 104 is fixedly connected to the bottom of the bridge 103 to increase the connection stability of its overall structure.

[0057] For the first water inlet pipe 104, its bottom is closed and does not contact the bottom plate of the frame assembly 100, and a plurality of groups of water inlet openings 111 are opened on its side wall. After the breeding water enters the first water inlet pipe 104, it is discharged into the inner cavity of the frame assembly 100 through the water inlet openings 111.

[0058] A plurality of fish inlet pipes 118 are connected through the side plate 101. One end of the fish inlet pipe 118 communicates with the fish inlet 130 on the side plate 101 to introduce aquatic organisms such as fish into the inner cavity of the frame assembly 100 through the fish inlet pipe 118.

[0059] An electromagnetic valve 108 is installed on the pipeline of the overflow pipe 107. The side part of the overflow pipe 107 is bypass-connected to a fish suction pipe 109, and the external port of the fish suction pipe 109 is adjacent to the position of the aquaculture water level W1 in the inner cavity of the frame assembly 100.

[0060] The lifting and cleaning assembly 400 has a horizontally arranged lifting frame 401, and the external dimensions of the lifting frame 401 are the same as the horizontal cross-section of the inner cavity of the frame assembly 100; in this embodiment, the lifting frame 401 has an octagonal prism shape.

[0061] A plurality of rectangular fish driving openings are formed in the lifting frame 401 for aquatic organisms such as fish groups to pass through without affecting their normal swimming and growth.

[0062] A brush (not shown in the figure) is arranged on the outer edge of the lifting frame 401 to clean the surface of the side plate 101 during the vertical lifting and lowering process of the lifting frame 401.

[0063] A first hole 402 and four first grooves 416 are arranged along the horizontal center of the lifting frame 401, and the middle column 102 is vertically sleeved in the first hole 402.

[0064] During the lifting and lowering movement of the lifting frame 401 along the middle column 102 driven by the lifting drive device, four groups of guide plates 105 on the side wall of the middle column 102 respectively penetrate through the corresponding first grooves 416.

[0065] Four groups of second holes 403 with the same number as the first water inlet pipes 104 are arranged on the lifting frame 401, and the four groups of first water inlet pipes 104 are respectively vertically sleeved in the corresponding second holes 403.

[0066] Two groups of lifting rollers 407 are arranged on the side of each second hole 403. Each group of lifting rollers 407 is axially connected to a group of lifting pulley plates 406 installed on the lifting frame 401 through horizontally arranged lifting pulley plate holes 414 at both ends. The lifting rollers 407 roll and fit on the outer side of the first water inlet pipe 104 and can rotate around a fixed axis; when the lifting frame 401 moves up and down along the middle column 102 driven by the lifting drive device, the lifting rollers 407 roll along the outer side of the first water inlet pipe 104 to provide auxiliary support and guidance.

[0067] The lifting drive device adopted in this embodiment is the first cable assembly 300, which is composed of the first hoist 301 and the first cable 302. One end of the first cable 302, i.e., the first cable winding head 303, is wound around the output shaft of the first hoist 301, and the other end of the first cable 302, i.e., the second cable winding head 304, is fixedly connected to the bridge 103. The first hoist 301 is also fixedly installed on the bridge 103.

[0068] The first cable 302 is a flexible body, and two layers of winding parts are vertically distributed between the horizontally extending parts of the first cable winding head 303 and the second cable winding head 304. Among them, there are four winding parts at the vertical bottom layer, namely the first winding arc 305, the second winding arc 306, the third winding arc 307, and the fourth winding arc 308. The winding part at the vertical top layer includes a fifth winding arc 309 with its axial center line in the horizontal direction (as Figure 12 and Figure 13 shown, there are 7 fifth winding arcs 309), and a sixth winding arc 310 with its axial center line in the vertical direction (as Figure 12 and Figure 13 shown, there are 6 sixth winding arcs 310).

[0069] Correspondingly, on the lifting frame 401, a first pulley 405, a second pulley 410, a third pulley 411, and a fourth pulley 412 are respectively arranged on a group of first pulley plates 404 through the first pulley holes 41. Among them, the first pulley 405 is wound and connected to the first winding arc 305, the second pulley 410 is wound and connected to the second winding arc 306, the third pulley 411 is wound and connected to the third winding arc 307, and the fourth pulley 412 is wound and connected to the fourth winding arc 308.

[0070] Correspondingly, at the bottom of the bridge 103, 7 groups of first wheel plates 119 and second wheel plates 121 are axially arranged opposite to each other. A first hole 120 is respectively arranged on each group of first wheel plates 119 in the horizontal direction, a second hole 124 is respectively arranged on each group of second wheel plates 121 in the horizontal direction, and a third hole 122 and a fourth hole 125 are respectively arranged on each group of second wheel plates 121 in the vertical direction. At the same time, a first groove 123 is horizontally arranged on the second wheel plate 121. The first hole 120 and the second hole 124 are horizontally coaxial, and the third hole 122 and the fourth hole 125 are vertically coaxial.

[0071] The two ends of the shaft of the fifth pulley 320 are respectively sleeved in the first hole 120 and the second hole 124 and can rotate around a fixed axis. The two ends of the shaft of the sixth pulley 330 are sleeved in the third hole 122 and the fourth hole 125 and can rotate around a fixed axis. The body of the sixth pulley 330 is accommodated in the first groove 123 but they do not contact each other.

[0072] The fifth pulley 320 is foldedly connected to the fifth folding arc 309, and the sixth pulley 330 is foldedly connected to the sixth folding arc 310.

[0073] As described above, in the design scheme of the lifting drive device adopting the first cable assembly 300, under the drive of the first winch 301, the first cable 302 realizes the "retracting" and "releasing" operations between the bridge 103 and the lifting frame 401 vertically, that is, the vertical length of the first cable 302 is dynamically variable; relative to the fixedly installed bridge 103, the lifting frame 401 realizes the vertical position change. When the lifting frame 401 moves up and down vertically, the brush attached to its outer edge can reciprocally clean the surface of the side plate 101, thereby cleaning the inner wall of the aquaculture bin, making it difficult for aquatic organisms such as barnacles to attach and grow.

[0074] The bottom cleaning assembly 500 described above includes a rotating ring 501 slidably sleeved outside the middle column 102, and a bottom cleaning transmission assembly 600 for driving the rotating ring 501 to rotate around the vertical center of the middle column 102;

[0075] For the rotating ring 501 described above, one end of two groups of first rotating arms 502 is symmetrically connected to its outer circumference. At the other end of each group of first rotating arms 502, one end of a group of second rotating arms 503 is connected. The other end of the second rotating arm 503 is axially provided with a third roller 512 that rolls and contacts the side plate 101 of the frame assembly 100. At the same time, a group of tension springs 530 is also connected between the side parts on the same side of each group of first rotating arms 502 and second rotating arms 503; Brushes (not shown in the figure) are installed at the bottoms of the first rotating arms 502 and the second rotating arms 503;

[0076] Under the adjustment of the elastic force of the tension spring 530, the second rotating arm 503 has a tendency to be always pulled towards the rear end of the first rotating arm 502. Even if the horizontal cross-sectional shape of the inner cavity of the frame assembly 100 formed after the side plates 101 are spliced is regular or irregular, the third roller 512 at the outer end of the second rotating arm 503 can still effectively and tightly contact the side plate 101 of the frame assembly 100;

[0077] Furthermore, several first rollers 505 that roll and contact the bottom plate of the frame assembly 100 are installed at the bottom of the rotating ring 501, and several second rollers 509 that roll and contact the bottom plate of the frame assembly 100 are axially provided at the side parts of the first rotating arms 502;

[0078] Specifically, several first slots 504 are provided at the bottom of the rotating ring 501, and several first rollers 505 are respectively fixedly connected to the first slots 504 through first slot holes 507 for rotation;

[0079] A second slotted groove 506 is provided at the connection between the swivel ring 501 and the first swivel arm 502. Second slotted holes 508 distributed vertically are provided in the second slotted groove 506. The end of the first swivel arm 502 is rotatably connected to the swivel ring 501 through a vertical pin shaft and the second slotted holes 508.

[0080] A third slotted groove 519 is provided at the connection end between the first swivel arm 502 and the second swivel arm 503. A pair of third slotted holes 520 distributed vertically are provided in the third slotted groove 519. The opposite ends of the first swivel arm 502 and the second swivel arm 503 are rotatably connected to the third slotted holes 520 through a vertical shaft.

[0081] A set of first lugs 515 and a second lug 510 are provided on the side of the first swivel arm 502. Horizontally distributed first lug holes 516 are provided oppositely on the first lugs 515. The second roller 509 is rotatably connected to the first lugs 515 through the first lug holes 516.

[0082] The second lug 510 is provided with a second lug hole 517. A third lug 511 is provided on one side of the connection end between the second swivel arm 503 and the first swivel arm 502. The third lug 511 is provided with a third lug hole 518. One end of the tension spring 530 is connected to the second lug hole 517, and the other end is connected to the third lug hole 518.

[0083] A fourth slotted groove 513 is provided at the end of the second swivel arm 503. A pair of fourth slotted holes 514 distributed vertically are provided in the fourth slotted groove 513. The third roller 512 is rotatably connected to the end of the second swivel arm 503 through the fourth slotted holes 514.

[0084] For the bottom cleaning assembly 500 with the above structural features, both the first swivel arm 502 and the second swivel arm 503 can rotate synchronously around the vertical center of the middle column 102, resulting in conforming to the shape and angle fluctuations of the side plate 101 and the bottom plate of the frame group 100, so as to maintain gapless contact between the above two sets of swivel arms and the inner wall and bottom of the breeding bin during the cleaning process. Under the rolling support of the first roller 505, the second roller 509, and the third roller 512, when the swivel ring 501 rotates around the vertical center of the middle column 102, the swivel ring 501 drives the first swivel arm 502 and the second swivel arm 503 to rotate synchronously clockwise or counterclockwise. At the same time, the brush can reciprocally and circularly clean the bottom surface of the frame assembly 100, making it difficult for aquatic organisms such as barnacles to attach and grow.

[0085] Further, a circle of internal teeth 540 is provided on the inner circumference of the swivel ring 501. The bottom cleaning transmission assembly 600 includes a third reduction motor 601, a rotating shaft 602 connected to the driving end of the third reduction motor 601, and a transmission gear 603 sleeved on the rotating shaft 602. The transmission gear 603 is meshed and connected to the internal teeth 540. Driven by the third reduction motor 601, while the rotating shaft 602 rotates about a fixed axis, the internal teeth 540 are driven to rotate through the transmission gear 603, so as to drive the swivel ring 501 to rotate simultaneously around the vertical center of the middle column 102.

[0086] Specifically, a motor plate 112 for installing the third reduction motor 601 and a guide ring 116 are sleeved on the middle column 102. A motor hole 114 is vertically opened on the motor plate 112, and the top end of the rotating shaft 602 is penetrated and connected to the motor hole 114 to realize the connection with the driving end of the third reduction motor 601. An inwardly concave avoidance opening 117 is opened on the side wall of the middle column 102. A transmission shaft plate 113 formed on the side of the guide ring 116 extends into the avoidance opening 117, and a transmission shaft hole 115 is vertically opened on the transmission shaft plate 113. The transmission gear 603 is placed in the avoidance opening 117, and the bottom end of the rotating shaft 602 sequentially penetrates and connects the transmission gear 603 and the transmission shaft hole 115.

[0087] Based on the aquaculture tank designed with the above structure, the present embodiment also proposes the following aquaculture tank cleaning method:

[0088] A hollow middle column 102 is vertically arranged in the inner cavity of the frame assembly 100 of the aquaculture tank, and a bridge 103 is horizontally connected to the top of the inner cavity of the frame assembly 100. Each end of the bridge 103 is communicated with a workboat or an adjacent aquaculture tank;

[0089] The top end of the middle column 102 is penetrated and connected to the bridge 103, and its bottom end penetrates and connects the bottom plate of the frame assembly 100 and is communicated with the water inlet end of the overflow pipe 107;

[0090] An array of first water inlet pipes 104 is vertically distributed in the inner cavity of the frame assembly 100. The bottom of each group of first water inlet pipes 104 is closed and does not contact the bottom plate of the frame assembly 100. An array of water inlet openings 111 is opened on its side wall. After the aquaculture water enters the first water inlet pipes 104, it is discharged into the inner cavity of the frame assembly 100 through the water inlet openings 111;

[0091] A plurality of fish inlet pipes 118 with both ends open are penetrated and connected to the side plate 101, and their fish inlet openings are communicated with the inner cavity of the frame assembly 100;

[0092] During the aquaculture process, a water pump is used to inject seawater into the first water inlet pipes 104 through the second water inlet pipe 110, and water enters the tank body through the vertically distributed water inlet openings 111 on the side walls of the first water inlet pipes 104;

[0093] First, the seawater fills the bottom of the inner cavity of the frame assembly 100, and then the water level gradually rises. When the water level reaches the aquaculture water level W1 and continues to add water, the overflow pipe 107 will discharge the excess water from the bottom.

[0094] The aquatic organisms to be cultured are sent through the fish inlet 130 at the connection between the fish inlet pipe 118 and the frame assembly 100, and the feed for feeding is fed through the feeding assembly 200.

[0095] An electromagnetic valve 108 is installed on the pipeline of the overflow pipe 107. The side of the overflow pipe 107 is bypass-connected to the fish suction pipe 109, and the external port of the fish suction pipe 109 is adjacent to the position of the aquaculture water level W1 in the inner cavity of the frame assembly 100. The dead aquatic organisms S1 in the inner cavity of the frame assembly 100 enter the overflow pipe 107 under the action of the water flow and are finally discharged.

[0096] To prevent aquatic organisms such as barnacles from attaching and growing on the inner wall and bottom of the bin, it is necessary to clean regularly or at any time to create a good living environment for aquatic organisms such as fish.

[0097] The lifting frame 401 is vertically lifted and lowered along the middle column 102 under the drive of the lifting drive device. Four groups of flow guide plates 105 on the side wall of the middle column 102 respectively penetrate through the corresponding first grooves 416, and the lifting rollers 407 roll along the outer side of the first water inlet pipe 104 to provide auxiliary support and guidance.

[0098] The brush provided on the outer edge of the lifting frame 401 is lifted and lowered together with the lifting frame 401 to clean the surfaces of the side plates 101, and aquatic organisms such as fish swim through the fish driving openings of the lifting frame 401.

[0099] Furthermore, under the drive of the bottom cleaning transmission assembly 600, the first rotating arm 502 and the second rotating arm 503 of the bottom cleaning assembly 500 rotate synchronously around the vertical center of the middle column 102, and there is no gap between the two groups of rotating arms and the inner wall and bottom of the aquaculture bin. During the synchronous clockwise or counterclockwise rotation of the rotating ring 501 driving the first rotating arm 502 and the second rotating arm 503, the brush reciprocally and circularly cleans the bottom plate surface of the frame assembly 100.

[0100] In addition to cleaning the aquaculture bin, the lifting frame 401 of the lifting and cleaning assembly 400 also has the functions of carrying the catching device and realizing the directional driving of fish during the vertical lifting process.

[0101] Specifically, a net frame 408 is vertically supported and connected by several short columns 409 along the four peripheries of each fish driving opening on the lifting frame 401.

[0102] The fishing net pulling plate 440 is slidably penetrated and connected to the fishing net frame 408 through a set of symmetrically distributed fifth holes 441 provided at both ends thereof. One end of the fishing net (not shown in the figure) is wound around the fishing net frame 408 on one side of the fish driving opening, and the other end of the fishing net is fixedly connected to the fishing net pulling plate 440;

[0103] Driven by the catching driving device, the fishing net pulling plate 440 reciprocally slides upward in the vertical direction of the fishing net frame 408 to drive the fishing net to cover the fish driving opening on the lifting frame 401 or open the fish driving opening; when the fish driving opening is covered by the fishing net, when the lifting frame 401 moves up and down along the vertical center of the middle column 102, the aquatic organisms such as fish in the aquaculture bin can be driven upward or downward directionally to achieve catching or transferring to other aquaculture bins or other aquaculture workboats; when the fish driving opening is opened, since the fishing net does not cover the lifting frame 401, even if the lifting frame 401 moves up and down along the vertical center of the middle column 102, it will not affect the normal activities and growth of the aquatic organisms such as fish in the aquaculture bin.

[0104] Further, the catching driving device includes two sets of seventh pulleys 422 symmetrically distributed at a set of relative edges of the fish driving opening and respectively driven and connected by a second winch 420 and a third winch 430. After the second steel cable 421 and the third steel cable 431 wound around and connected to the driving ends of the second winch 420 and the third winch 430 are respectively wound and connected to the seventh pulleys 422 on both sides of the fish driving opening, they are docked on the fishing net pulling plate 440;

[0105] Specifically, each set of seventh pulleys 422 is rotationally arranged on a set of second pulley plates 415 provided on the lifting frame 401 through a third pulley hole 416;

[0106] A pulling plate joint 443 is fixedly arranged on the fishing net pulling plate 440, and the docking ends of the second steel cable 421 and the third steel cable 431 are respectively fixed on the pulling plate joint 443;

[0107] The second winch 420 and the third winch 430 can be respectively installed at the bottom of the bridge 103.

[0108] When the lifting frame 401 is stationary in the vertical direction, by taking in and releasing the second winch 420 and the third winch 430 at the same time, the second steel cable 421 and the third steel cable 431 are driven to move in the same direction, so that the fishing net is driven by the pulling plate joint 443 to move toward the fish driving opening side on the lifting frame 401, realizing the covering or opening of the fish driving opening by the fishing net;

[0109] When the lifting frame 401 descends vertically along the middle column 102, the second hoist 420 and the third hoist 430 release the second steel cable 421 and the third steel cable 431 simultaneously; when the lifting frame 401 ascends vertically along the middle column 102, the second hoist 420 and the third hoist 430 recover the second steel cable 421 and the third steel cable 431 simultaneously, so as to achieve the coordinated operation of the cleaning and catching devices without mutual interference.

[0110] Furthermore, at least one group of horizontally distributed pull plate holes 442 are provided on the fishing net pull plate 440, and one end of the fishing net is fixedly connected to the fishing net pull plate 440 through the pull plate holes 442.

[0111] As Figure 1 shown, based on the overall structural design of the above-mentioned culture tank, the culture tank is placed on a deep-sea culture ship to realize the culture and catching operations of various types of aquatic organisms.

[0112] Several culture tanks can be installed on the upper deck of the culture ship, and the frame assembly 100 of each culture tank is fixedly connected to the upper deck independently;

[0113] Similarly, several culture tanks can be installed on the ship's board inside the ship. Several frame assemblies 100 are spliced together to form an integrated culture tank body structure. The side plates 101 of adjacent frame assemblies 100 can be shared, and multiple frame assemblies 100 are butted together to form a shared tank side wall, thereby correspondingly saving the usage amount of the side plates 101; such an internal splicing structural design can significantly save the usage amount of steel, and the effect is more obvious on large-scale culture ships such as 100,000-ton and 80,000-cubic-meter culture water bodies.

[0114] In summary, the embodiments given in the accompanying drawings are only the preferred solutions to achieve the purpose of the present invention. For those skilled in the art, they can get inspiration therefrom and directly derive other alternative structures that conform to the design concept of the present invention. The other structural features obtained thereby should also fall within the scope of the solutions described in the present invention.

Claims

1. A self-cleaning aquaculture tank, comprising a closed cavity formed by sequentially splicing several side plates and a bottom plate The housing component, characterized in that: A hollow intermediate column is vertically arranged in the inner cavity of the frame assembly, and a bridge is horizontally connected to the top of the inner cavity of the frame assembly; A lifting cleaning assembly that can move vertically up and down and clean the surface of the side plates is sleeved along the outer diameter of the intermediate column; The lifting cleaning assembly has a horizontally arranged lifting frame, and the outer dimension of the lifting frame is the same as the horizontal cross-section of the inner cavity of the frame assembly; Several rectangular fish driving openings for aquatic organisms to pass through are opened on the lifting frame; A first hole is arranged along the horizontal center of the lifting frame, and the intermediate column is vertically sleeved in the first hole; Brushes are arranged on the outer edge of the lifting frame, and under the drive of the lifting drive device, the brushes clean the surface of the side plates when vertically lifting and lowering together with the lifting frame; An array of first water inlet pipes is vertically installed at the bottom of the bridge. The bottom of the first water inlet pipe is closed and does not contact the bottom plate of the frame assembly. An array of water inlets is opened on its side wall. After the aquaculture water enters the first water inlet pipe, it is discharged into the inner cavity of the frame assembly through the water inlets; The lifting frame is provided with the same number of second holes as the first water inlet pipes, and the first water inlet pipes are vertically sleeved in the corresponding second holes; At least one set of lifting rollers is arranged on the side of each second hole, and the lifting rollers roll and fit on the outer side of the first water inlet pipe and can rotate around a fixed axis; The lifting drive device includes a first steel cable assembly, which consists of a first winch and a first steel cable; One end of the first steel cable is wound around the output shaft of the first winch, and the other end of the first steel cable is fixedly connected to the bridge. The first winch is fixedly installed on the bridge; The first steel cable is a flexible body, and two vertically distributed folding parts are formed between the horizontally extending parts of the first steel cable head and the second steel cable head; An array of pulleys is arranged on the lifting frame, and this part of the pulleys are respectively wound and connected to the vertically distributed folding part formed between the horizontally extending parts of the first steel cable head and the second steel cable head; An array of pulleys is arranged at the bottom of the bridge, and this part of the pulleys are respectively wound and connected to the vertically distributed folding part formed between the horizontally extending parts of the first steel cable head and the second steel cable head; Among the array of pulleys arranged at the bottom of the bridge, some pulleys are axially positioned in the horizontal direction, and some pulleys are axially positioned in the vertical direction; A bottom cleaning assembly that can rotate around the vertical center by a fixed axis is sleeved at the bottom of the intermediate column; The bottom cleaning assembly includes a rotating ring slidably sleeved on the outside of the intermediate column and a bottom cleaning transmission assembly that drives the rotating ring to rotate around the vertical center of the intermediate column; For the rotating ring, one end of two groups of first rotating arms is symmetrically connected to its outer circumference. One end of a group of second rotating arms is connected to the other end of each group of first rotating arms. The other end of the second rotating arm is axially provided with a third roller that rolls and contacts the side plate of the frame assembly. At the same time, a group of tension springs is also connected between the side parts on the same side of each group of first rotating arms and second rotating arms; Brushes are installed at the bottom of both the first rotating arms and the second rotating arms; Several first rollers that are in rolling contact with the bottom plate of the frame assembly are installed at the bottom of the swivel ring, and several second rollers that are in rolling contact with the bottom plate of the frame assembly are axially provided on the side of the first swivel arm; when the swivel ring rotates around the vertical center of the middle column, the swivel ring drives the first swivel arm and the second swivel arm to rotate synchronously clockwise or counterclockwise, and at the same time, the brush can reciprocate and cyclically clean the surface of the bottom plate of the frame assembly.

2. The self-cleaning aquaculture tank according to claim 1, wherein: An inner tooth is provided on the inner circumference of the swivel ring, and the bottom cleaning drive assembly includes a third reduction motor, a rotating shaft connected to the drive end of the third reduction motor, and a transmission gear sleeved on the rotating shaft, and the transmission gear is meshed and connected to the inner tooth.

3. The self-cleaning aquaculture tank according to claim 1, wherein: Several first grooves are provided on the lifting frame, and when the lifting frame vertically lifts and lowers, the guide plate on the side wall of the middle column penetrates through the first grooves at corresponding positions.

4. The aquaculture workboat applying the self-cleaning aquaculture bin according to any one of claims 1 to 3, characterized in that: It includes a cabin composed of a housing, an upper deck located at the top of the housing, and a ship plate fixedly connected to the bottom of the inner cavity of the housing; Several breeding bins are installed on the upper deck, and the frame assembly of each breeding bin is individually fixedly connected to the upper deck.

5. The aquaculture workboat according to claim 4, characterized in that: Several breeding bins are installed on the ship plate, and several frame assemblies are spliced and combined into an integrated breeding bin body structure, and the side plates of adjacent frame assemblies are shared.

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