A caisson device for shellfish farming

Abstract

The present invention relates to the technical field of shellfish culture, and discloses a caisson device for shellfish culture, comprising: a box body, a plurality of culture spaces capable of exchanging water with the external environment are arranged inside the box body; a sewage pipe arranged through the plurality of culture spaces, one end of which is extended to the outside of the box body and is provided with a driving part, and the other end is connected to a sewage power part arranged outside the box body through a connecting pipe, and the water flow discharged by the sewage power part acts on the driving part, so that the driving part generates a cleaning power for the box body. The power provided by the sewage power part can timely clean and discharge the dirt deposited inside the box body, so as to ensure a good culture environment for shellfish, and the impact force of the water flow discharged by the sewage power part can also be used to clean the outside of the box body, reduce the occurrence of blockage, and ensure that it can effectively exchange water with the external environment; the sewage power part is fully utilized to achieve the cleaning effect inside and outside the box body.

Description

Technical Field

[0001] The present invention relates to the technical field of shellfish culture, and more particularly to a caisson device for shellfish culture. Background Art

[0002] Shellfish are generally herbivorous, mainly feeding on algae and organic debris; there are many ways to farm shellfish, and appropriate farming methods should be selected for different shellfish; after shellfish are farmed to a certain size, they need to be transferred to the sea area for farming. For some easy-to-escape or precious shellfish species, they are usually farmed in seawater using net cages or caissons. For attached or fixed shellfish, caissons can also be used to farm them in seawater. At present, there are still some problems with the method of using caissons to farm shellfish. For example, the holes on the caisson used for water exchange with the external environment are easily blocked by algae or foreign matter, making it inconvenient for the caisson to exchange water with the external environment. The dirt produced by the growth of shellfish in the caisson is easily deposited and difficult to discharge, affecting the growth environment of the shellfish. Therefore, it is necessary to propose a caisson device for shellfish farming to at least partially solve the problems existing in the prior art. Summary of the invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0004] In order to at least partially solve the above-mentioned problems, the present invention provides a caisson device for shellfish farming, comprising: a box body, which is provided with a plurality of farming spaces inside and can exchange water with the external environment; a sewage pipe arranged through the plurality of farming spaces, one end of which extends to the outside of the box body is provided with a driving part, and the other end is connected to a sewage power part arranged outside the box body through a connecting pipe, and the water flow discharged by the sewage power part acts on the driving part, so that the driving part generates cleaning power for the box body.

[0005] Preferably, the box body comprises: an outer shell, inside of which a partition frame is provided, and the partition frame divides the inside of the outer shell into a plurality of breeding spaces.

[0006] Preferably, the housing comprises: an upper housing and at least two annular housings, wherein the upper housing and the annular housings and two adjacent annular housings are connected via a fixing ring; the top end of the sewage pipe is connected to the upper housing, and the bottom end thereof is disposed through the bottom surface of the partition frame;

[0007] A plurality of exchange holes are provided on the side wall of the upper shell and the side wall of the annular shell;

[0008] The top surface of the upper shell is provided with a through hole connected with the sewage pipe, and the top of the upper shell is provided with a connecting cavity for connecting the connecting pipe and the through hole.

[0009] Preferably, a plurality of drainage holes are provided on the side wall of the drainage pipe corresponding to the breeding space.

[0010] Preferably, the partition frame includes: a partition plate arranged corresponding to the fixing ring, a support rod is arranged between two adjacent partition plates, and the sewage pipe is arranged through multiple partition plates; the sewage discharge power unit is arranged on the bottom surface of the partition plate arranged close to the driving unit.

[0011] Preferably, the shell is rotatably connected to the partition frame, the driving part is connected to the sewage pipe, and the connecting cavity is rotatably connected to the upper shell; an arc plate corresponding to the shell is provided on the outer side of the connecting pipe, and a cleaning brush is provided on the inner side of the arc plate;

[0012] The driving part generates the cleaning power for the box body as follows: the driving part rotates under the action of the water flow discharged by the sewage power part, and at the same time drives the sewage pipe and the shell to rotate, forming a cleaning power for the shell and the cleaning brush to rotate relative to each other.

[0013] Preferably, the driving part comprises: a shaft cylinder A fixedly connected to the sewage pipe, and a plurality of driving plates A are evenly arranged on the outer side of the shaft cylinder A along its circumference.

[0014] Preferably, the driving sheet A is curved, and its projection on a plane passing through the axis of the shaft cylinder A is semicircular.

[0015] Preferably, the housing is fixedly connected to the partition frame, and the driving part is rotatably connected to the sewage pipe;

[0016] The driving part generates the cleaning power for the box body as follows: the driving part rotates under the action of the water flow discharged by the sewage power part, and the uneven force of the driving part causes the sewage pipe to vibrate, and the vibration is transmitted to the shell to form the cleaning power.

[0017] Preferably, the driving part comprises: a shaft cylinder B rotatably connected to the sewage pipe, and a plurality of driving plates B are evenly arranged on the outer side of the shaft cylinder B along its circumference;

[0018] The plurality of driving blades B include a first blade and a second blade of different weights, and the arrangement of the first blade and the second blade causes the driving part to be subjected to uneven rotation force.

[0019] Preferably, the first blade and the second blade are both curved, and their projections on a plane passing through the axis of the shaft cylinder B are semicircular.

[0020] Preferably, the drainage end of the sewage discharge power unit is provided with a guide pipe corresponding to the driving unit; the water flow discharged from the guide pipe acts on the driving unit to make the driving unit rotate.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The caisson device for shellfish farming described in the present invention can timely clean and discharge the dirt deposited inside the box body through the power provided by the sewage discharge power unit, thereby ensuring a good shellfish farming environment. It can also utilize the impact force of the water flow discharged by the sewage discharge power unit to clean the outside of the box body, reduce the occurrence of blockages, and ensure effective water exchange with the external environment; and make full use of the sewage discharge power unit to achieve cleaning effects inside and outside the box.

[0023] The caisson device for shellfish farming described in the present invention, other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by technicians in this field through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the internal structure of a first structure of the caisson device for shellfish farming according to the present invention;

[0026] Figure 2 It is a schematic diagram of the exploded structure of the first structure of the caisson device for shellfish culture according to the present invention;

[0027] Figure 3 It is a schematic cross-sectional structure diagram of a first structure of the caisson device for shellfish culture according to the present invention;

[0028] Figure 4 It is a schematic diagram of the external structure of the first structure of the caisson device for shellfish culture according to the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the sewage pipe in the caisson device for shellfish culture according to the present invention;

[0030] Figure 6 It is a schematic structural diagram of a fixing ring in a caisson device for shellfish culture according to the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the cleaning brush in the first structure of the caisson device for shellfish farming according to the present invention;

[0032] Figure 8 It is a bottom view structural schematic diagram of a first structure of the caisson device for shellfish culture according to the present invention;

[0033] Fig. 9 It is a schematic structural diagram of a driving part in a first structure of the caisson device for shellfish culture according to the present invention;

[0034] Fig.10 A schematic diagram of the internal structure of the second structure of the caisson device for shellfish farming according to the present invention;

[0035] Fig.11 It is a schematic diagram of the external structure of the second structure of the caisson device for shellfish culture according to the present invention;

[0036] Fig.12 It is a schematic structural diagram of the connecting pipe in the second structure of the caisson device for shellfish culture according to the present invention;

[0037] Fig.13 It is a bottom view structural schematic diagram of the second structure of the caisson device for shellfish culture according to the present invention;

[0038] Fig.14 This is a schematic structural diagram of the driving portion of the second structure of the caisson device for shellfish farming described in the present invention. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0040] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0041] like Figure 1-Figure 2 As shown, the present invention provides a caisson device for shellfish farming, comprising: a box body 1, wherein a plurality of farming spaces 2 capable of exchanging water with the external environment are provided inside; a sewage pipe 3 arranged through the plurality of farming spaces 2, wherein one end of the sewage pipe 3 extending to the outside of the box body 1 is provided with a driving part 4, and the other end is connected to a sewage power part 6 arranged outside the box body 1 through a connecting pipe 5, and the water flow discharged by the sewage power part 6 acts on the driving part 4, so that the driving part 4 generates a cleaning power for the box body 1.

[0042] A buoyancy part for providing buoyancy for the entire caisson device may be arranged outside the box body 1 or the connecting pipe 5 of the present invention, a fixing rope for fixing the caisson device may be arranged on the buoyancy part, and a buoy may be arranged on the top of the buoyancy part; a control part and an energy storage module for providing electric energy to the control part and the sewage discharge power part 6 may be arranged on the buoyancy part, and the control part can control the sewage discharge power part 6 to work according to a set time interval, so as to achieve the purpose of regular cleaning of the box body 1;

[0043] When the sewage discharge power unit 6 is working, it can suck and discharge the dirt formed by the growth of shellfish in the box body 1. Under the suction power provided by the sewage discharge power unit 6, the dirt is sucked from the breeding space 2 into the sewage pipe 3 along with the water flow, and then enters the connecting pipe 5 from the sewage pipe 3, and is discharged after passing through the sewage discharge power unit 6. The impact force formed by the discharged water flow can act on the driving unit 4, and the driving unit 4 can generate a cleaning power for the box body 1, clean the surface of the box body 1, prevent the box body 1 from being blocked and affecting the water exchange between its interior and the external environment, thereby ensuring the breeding environment of shellfish.

[0044] Through the power provided by the sewage discharge power unit 6, the dirt deposited inside the box 1 is cleaned and discharged in time to ensure a good breeding environment for shellfish. The impact force of the water flow discharged by the sewage discharge power unit 6 can also be used to achieve regular cleaning of the box 1, reduce the occurrence of blockage, and ensure effective water exchange with the external environment; the sewage discharge power unit 6 is fully utilized to achieve the purpose of cleaning the inside and outside of the box 1, saving the use of electrical energy.

[0045] like Figure 1 As shown, further, the box body 1 includes: an outer shell 7, inside of which a partition frame 8 is provided, and the partition frame 8 divides the inside of the outer shell 7 into a plurality of breeding spaces 2.

[0046] A frame for shellfish to attach or fixate may be separately provided in each breeding space 2, and a door for taking shellfish out and placing shellfish may be provided on the outer shell 7 corresponding to each breeding space 2.

[0047] like Figure 2-Figure 4 As shown, in one embodiment, the housing 7 includes: an upper housing 710 and at least two annular housings 720, wherein the upper housing 710 and the annular housings 720 and two adjacent annular housings 720 are connected via a fixing ring 730; the top end of the sewage pipe 3 is connected to the upper housing 710, and the bottom end thereof is disposed through the bottom surface of the partition frame 8;

[0048] The connection mode of the upper shell 710 and the annular shell 720 and the fixing ring 730 can be clamped or connected by screws for easy installation; the top end of the sewage pipe 3 is fixedly connected to the inner top surface of the upper shell 710, which can be threaded or clamped, the bottom surface of the partition frame 8 is the bottom surface of the box body 1, the top surface of the outer shell 7 (that is, the top surface of the upper shell 710) is the top surface of the box body 1, and the bottom end of the sewage pipe 3 passes through the bottom surface of the partition frame 8;

[0049] A plurality of exchange holes 740 are provided on the side wall of the upper shell 710 and the side wall of the annular shell 720;

[0050] The exchange hole 740 is smaller than the size of the shellfish, ensuring effective water exchange inside and outside the box 1 while preventing the shellfish from escaping;

[0051] The top surface of the upper shell 710 is provided with a through hole 711 communicating with the sewage pipe 3, and the top of the upper shell 710 is provided with a connecting cavity 9 for connecting the connecting pipe 5 and the through hole 711;

[0052] The sewage pipe 3 and the connecting cavity 9 are connected through the through hole 711, so that the sewage can pass through the sewage pipe 3, the connecting cavity 9 and the connecting pipe 5 in sequence with the water flow, and finally be discharged from the drainage end of the sewage power unit 6.

[0053] like Figure 5 As shown, in one embodiment, a plurality of drainage holes 310 are provided on the side wall of the drainage pipe 3 corresponding to the breeding space 2 .

[0054] Each part of the sewage pipe 3 corresponding to the breeding space 2 is provided with a plurality of sewage holes 310, and the sewage holes 310 are preferably long holes extending along the axial direction, and the plurality of sewage holes 310 are arranged in a circumferential array; under the suction action of the sewage power unit 6, the sewage can enter the sewage pipe 3 from the sewage hole 310 along with the water flow, and the sewage in each breeding space 2 can be effectively discharged.

[0055] like Figure 2 As shown, in one embodiment, the partition frame 8 includes: a partition plate 810 arranged corresponding to the fixing ring 730, a support rod 820 is provided between two adjacent partition plates 810, and the sewage pipe 3 is arranged through multiple partition plates 810; the bottom surface of the partition plate 810 arranged near the driving part 4 is provided with the sewage power part 6.

[0056] A hole is provided at the center of the partition plate 810 for allowing the sewage pipe 3 to pass through, and the support rod 820 is arranged on the outside of the hole; the support rod 820 and the partition plate 810 can be snap-connected, screwed or threaded, which is convenient for the overall installation and disassembly of the box body 1; the sewage power unit 6 is preferably set to two, symmetrically installed on the bottom surface of the partition plate 810 located at the bottom, and the corresponding connecting pipes 5 are also set to two, which is convenient to ensure the overall balance of the box body 1, and at the same time provide a greater force for the driving unit 4, and provide a greater suction force for the inside of the box body 1, which is more conducive to cleaning inside and outside the box body 1.

[0057] like Figure 6 As shown, the top surface and the bottom surface of the fixing ring 730 are respectively provided with mounting grooves 731 for mounting the upper shell 710 or the annular shell 720, and the mounting groove 731 is connected to the upper shell 710 or the annular shell 720 by snap-fitting or screws; the inner ring surface of the fixing ring 730 is provided with an inner ring groove 732 corresponding to the partition plate 810; the partition plate 810 and the inner ring groove 732 are fixedly connected or rotatably connected.

[0058] like Figure 1 , Figure 4 and Figure 7 As shown, in one embodiment, the housing 7 is rotatably connected to the partition frame 8, the driving unit 4 is connected to the sewage pipe 3, and the connecting cavity 9 is rotatably connected to the upper housing 710; the outer side of the connecting pipe 5 is provided with an arc plate 10 corresponding to the housing 7, and the inner side of the arc plate 10 is provided with a cleaning brush 11;

[0059] The driving part 4 generates the cleaning power for the housing 1 as follows: the driving part 4 rotates under the action of the water flow discharged by the sewage power part 6, and at the same time drives the sewage pipe 3 and the housing 7 to rotate, thereby forming a cleaning power for the housing 7 and the cleaning brush 11 to rotate relative to each other.

[0060] In this embodiment, a first structure of a caisson device is provided, in which the outer shell 7 and the partition frame 8 are rotatably connected, that is, the partition plate 810 and the inner ring groove 732 are rotatably connected; when the sewage discharge power unit 6 is working, the partition frame 8, the connecting cavity 9, the connecting pipe 5, the arc plate 10 and the cleaning brush 11 are in a stationary state, and the suction force formed by the sewage discharge power unit 6 causes the dirt in each breeding space 2 to be sucked into the sewage pipe 3 along with the water flow, and the discharged water flow impacts the driving unit 4, so that the driving unit 4 drives the sewage pipe 3 and the outer shell 7 to rotate, thereby realizing the relative rotation of the outer shell 7 and the cleaning brush 11, and the exchange hole 740 on the outer shell 7 can be cleaned by the cleaning brush 11; thereby, only the sewage discharge power unit 6 provides power, and the inside and outside of the box body 1 can be cleaned simultaneously, preventing the exchange hole 740 from being blocked and the dirt in the breeding space 2 from being deposited, thereby ensuring the breeding environment of shellfish.

[0061] like Figure 8 and Fig. 9 As shown, further, the driving part 4 includes: a shaft cylinder A410 fixedly connected to the sewage pipe 3, and a plurality of driving plates A420 are evenly arranged on the outer side of the shaft cylinder A410 along its circumference.

[0062] Furthermore, the driving sheet A420 is curved, and its projection on a plane passing through the axis of the shaft cylinder A410 is semicircular.

[0063] When the water flow discharged by the sewage discharge power unit 6 acts on the driving plate A420, the semicircular driving plate A420 can reduce the resistance of its rotation in the water. The water flow preferably acts directly on the bending position of the driving plate A420, so that the driving force formed on the driving plate A420 can be maximized, thereby improving the driving force of the driving unit 4 and ensuring effective cleaning of the outside of the box body 1.

[0064] Furthermore, a guide pipe 12 corresponding to the driving part 4 is provided at the drainage end of the sewage discharge power part 6; the water flow discharged from the guide pipe 12 acts on the driving part 4 to make the driving part 4 rotate.

[0065] The shaft cylinder A410 is fixedly connected to the sewage pipe 3, so that the driving part 4 can rotate synchronously with the sewage pipe 3; the water flow discharged by the sewage power part 6 can form an impact force on the driving plate A420 under the guidance of the guide tube 12, thereby driving the sewage pipe 3 and the outer shell 7 to rotate synchronously.

[0066] like Figure 10-12 As shown, in one embodiment, the housing 7 is fixedly connected to the partition frame 8, and the driving part 4 is rotatably connected to the sewage pipe 3;

[0067] The driving part 4 generates the cleaning power for the box body 1 as follows: the driving part 4 rotates under the action of the water flow discharged by the sewage power part 6, and the driving part 4 is subjected to uneven rotation force, causing the sewage pipe 3 to vibrate, and the vibration is transmitted to the shell 7 to form the cleaning power.

[0068] In this embodiment, a second structure of the caisson device is provided, in which the outer shell 7 is fixedly connected to the partition frame 8, that is, the partition plate 810 is fixedly connected to the inner ring groove 732, and the driving part 4 is rotatably connected to the sewage pipe 3; different from the first structure of the caisson device, the cleaning power is the vibration generated by the uneven rotation of the driving part 4. When the driving part 4 rotates with uneven force, it will generate a radial force on the sewage pipe 3, thereby causing the sewage pipe 3 to vibrate, and the vibration will be transmitted to the outer shell 7 and the partition frame 8, so that the outer shell 7 can remove foreign matter blocked or attached to its outer surface under the action of vibration, and the deposited dirt on the partition frame 8 will float up and flow with the water under the action of vibration, which is beneficial to the cleaning and discharge of dirt.

[0069] like Figure 13-14As shown, further, the driving part 4 includes: a shaft cylinder B430 rotatably connected to the sewage pipe 3, and a plurality of driving plates B440 are evenly arranged on the outer side of the shaft cylinder B430 along its circumference;

[0070] The plurality of driving blades B440 include a first blade 441 and a second blade 442 of different weights, and the arrangement of the first blade 441 and the second blade 442 causes the driving part 4 to rotate with uneven force;

[0071] The specific arrangement may be that a plurality of first blades 441 are arranged adjacent to each other, and a plurality of second blades 422 are arranged adjacent to each other, so that when the driving part 4 rotates, the radial force thereof is uneven, thereby generating a vibration effect on the sewage pipe 3;

[0072] The first blade 441 and the second blade 442 are both curved, and their projections on a plane passing through the axis of the shaft cylinder B430 are semicircular.

[0073] When the water flow discharged by the sewage discharge power unit 6 acts on the driving plate B440, the semicircular driving plate B440 can reduce the resistance of its rotation in the water. The water flow preferably acts directly on the bending position of the driving plate B440, so that the driving force formed on the driving plate B440 can be maximized, thereby improving the driving force on the driving unit 4, ensuring the effective occurrence of vibration, and achieving effective cleaning of the outside of the box body 1.

[0074] Furthermore, a guide pipe 12 corresponding to the driving part 4 is provided at the drainage end of the sewage discharge power part 6; the water flow discharged from the guide pipe 12 acts on the driving part 4 to make the driving part 4 rotate.

[0075] The shaft cylinder B430 is rotatably connected to the sewage pipe 3, so that the driving part 4 can rotate relative to the sewage pipe 3; the water flow discharged by the sewage power part 6 can form an impact force on the driving plate B440 under the guidance of the guide tube 12, so that the sewage pipe 3 generates vibration and realizes the cleaning of the box body 1.

[0076] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A caisson device for shellfish culture, characterized in that: include: A box (1) is provided with a plurality of breeding spaces (2) capable of exchanging water with the external environment; a sewage discharge pipe (3) is provided through the plurality of breeding spaces (2), one end of which is provided with a driving part (4) and extends to the outside of the box (1), and the other end is connected to a sewage discharge power part (6) provided outside the box (1) through a connecting pipe (5); the water flow discharged by the sewage discharge power part (6) acts on the driving part (4), so that the driving part (4) generates cleaning power for the box (1); The box (1) comprises: an outer shell (7), inside which a partition frame (8) is provided, and the partition frame (8) divides the inside of the outer shell (7) into a plurality of breeding spaces (2); The housing (7) comprises: an upper housing (710) and at least two annular housings (720); the upper housing (710) and the annular housings (720) as well as two adjacent annular housings (720) are connected via a fixing ring (730); the top end of the sewage pipe (3) is fixedly connected to the inner top surface of the upper housing (710), and the bottom end thereof is disposed through the bottom surface of the partition frame (8); A plurality of exchange holes (740) are provided on the side wall of the upper shell (710) and the side wall of the annular shell (720); The top surface of the upper shell (710) is provided with a through hole (711) connected to the sewage pipe (3), and the top of the upper shell (710) is provided with a connecting cavity (9) for connecting the connecting pipe (5) and the through hole (711); the sewage pipe (3) and the connecting cavity (9) are connected through the through hole (711), so that sewage can flow through the sewage pipe (3), the connecting cavity (9) and the connecting pipe (5) in sequence, and finally be discharged from the drainage end of the sewage discharge power unit (6); The sewage pipe (3) is provided with a plurality of sewage holes (310) on the side wall corresponding to the breeding space (2); The partition frame (8) comprises: a partition plate (810) arranged corresponding to the fixing ring (730), a hole capable of allowing the sewage pipe (3) to pass through is provided at the center of the partition plate (810), a support rod (820) is provided between two adjacent partition plates (810), and the support rod (820) is arranged outside the hole, and the sewage pipe (3) passes through a plurality of partition plates (810); the sewage discharge power unit (6) is provided on the bottom surface of the partition plate (810) arranged close to the driving unit (4); two sewage discharge power units (6) are provided and symmetrically mounted on the bottom surface of the partition plate (810) located at the bottom, and two corresponding connecting pipes (5) are also provided; The outer shell (7) is rotatably connected to the partition frame (8), the driving part (4) is connected to the sewage pipe (3), and the connecting cavity (9) is rotatably connected to the upper shell (710); an arc-shaped plate (10) corresponding to the outer shell (7) is provided on the outer side of the connecting pipe (5), and a cleaning brush (11) is provided on the inner side of the arc-shaped plate (10); The cleaning power generated by the driving part (4) on the box body (1) is: the driving part (4) rotates under the action of the water flow discharged by the sewage discharge power part (6), and at the same time drives the sewage discharge pipe (3) and the outer shell (7) to rotate, thereby forming a cleaning power in which the outer shell (7) and the cleaning brush (11) rotate relative to each other; The driving part (4) comprises: a shaft cylinder A (410) fixedly connected to the sewage discharge pipe (3), and a plurality of driving plates A (420) are evenly arranged on the outer side of the shaft cylinder A (410) along its circumference.

2. The caisson device for shellfish culture according to claim 1, characterized in that: A guide pipe (12) corresponding to the drive unit (4) is provided at the drainage end of the sewage discharge power unit (6); the water flow discharged from the guide pipe (12) acts on the drive unit (4) to cause the drive unit (4) to rotate.

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