阅读说明：本技术 一种养殖滤食性贝类的沉箱装置 (Caisson device for breeding filter feeding shellfish ) 是由 王弢 陈一锋 于 2020-12-08 设计创作，主要内容包括：本发明属于水产养殖设备技术领域,具体涉及一种养殖滤食性贝类的沉箱装置,包括沉箱主体,所述沉箱主体的前端安装有开合盖,所述沉箱主体的内侧设置有侧边孔,所述沉箱主体的内侧设置有充气管,所述充气管的上端设置有出气孔,所述沉箱主体的内侧设置有附着板,所述附着板的内侧设置有定位孔,所述附着板的内侧设置有养殖槽,所述沉箱主体的内侧设置有交换孔,通过侧边孔的设置,实现沉箱主体内部与外界环境进行水体的交换,进而保障沉箱主体内部水体的流通,通过交换孔的设置,不仅可以用于与外界环境进行水体的交换,而且可以将滤食性贝类在生长发育过程中产出的污物进行及时的排出,从而保障滤食性贝类养殖的效果。(The invention belongs to the technical field of aquaculture equipment, and particularly relates to a caisson device for culturing filter-feeding shellfish, which comprises a caisson main body, wherein an opening and closing cover is arranged at the front end of the caisson main body, a side edge hole is formed in the inner side of the caisson main body, an inflation pipe is arranged in the inner side of the caisson main body, an air outlet hole is formed in the upper end of the inflation pipe, an attachment plate is arranged in the inner side of the caisson main body, a positioning hole is formed in the inner side of the attachment plate, a culture groove is formed in the inner side of the attachment plate, an exchange hole is formed in the inner side of the caisson main body, the exchange of water between the interior of the caisson main body and the external environment is realized through the arrangement of the side edge hole, the circulation of the water in the caisson main body is further ensured, the exchange hole can be used for exchanging water with the external environment, and dirt generated in the growth and development process of the filter-feeding shellfish can be, thereby ensuring the effect of filter-feeding shellfish culture.)

1. The utility model provides a breed caisson device of filter-feeding shellfish which characterized in that: comprises a caisson body (1), an opening and closing cover (2) is installed at the front end of the caisson body (1), a connecting lock (3) is arranged at the front end of the opening and closing cover (2), a buoyancy tank (15) is installed at the upper end of the caisson body (1), a fastening connecting sleeve (4) is installed on the left side of the buoyancy tank (15), a connecting rope (5) is arranged on the inner side of the fastening connecting sleeve (4), a fixed hook (6) is arranged on the outer side of the connecting rope (5), a buoy (7) is installed at the upper end of the buoyancy tank (15), a side edge hole (8) is formed in the inner side of the caisson body (1), an inflation tube (9) is arranged in the inner side of the caisson body (1), an air outlet hole (11) is formed in the upper end of the inflation tube (9), an attachment plate (13) is arranged in the inner side of the caisson body (1), and a positioning hole (10) is formed in the, the inner side of the attachment plate (13) is provided with a culture groove (12), and the inner side of the caisson main body (1) is provided with an exchange hole (14).

2. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: the caisson main part (1) is a rectangular caisson and is provided with four layers, the middle position of the front end of the caisson is provided with a rectangular bait casting port, each layer of the caisson is divided into a plurality of small-sized area spaces, the size of the bait casting port is slightly smaller than that of the open-close cover (2), and the open-close cover (2) is located at the position of the front end of the bait casting port.

3. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: connect lock (3) total eight, per two are a set of, every all includes lower extreme connecting block (31), lower extreme connecting hole (32), remove bolt (33), upper end connecting block (34), reset spring (35), and two connect lock (3) symmetry installations, lower extreme connecting block (31) are the rectangle structure, fixed mounting is in the position of caisson main part (1) front end, and the inboard of lower extreme connecting block (31) is provided with lower extreme connecting hole (32), lower extreme connecting hole (32) are cylindrical structure, upper end connecting block (34) fixed mounting is in the position of opening and shutting lid (2) front end, and the inboard is provided with removes bolt (33), remove bolt (33) and be T type structure, the girth that removes bolt (33) lower part is less than the girth of lower extreme connecting hole (32), the outer lane of removing bolt (33) is provided with reset spring (35).

4. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: the fastening connecting sleeves (4) are of a square structure, the number of the fastening connecting sleeves is four, every two fastening connecting sleeves are in a group and are symmetrically arranged at the left side and the right side of the buoyancy tank (15), and the fastening connecting sleeves (4) in the same group are positioned at the two ends of the upper part of the corresponding side face.

5. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: the number of the buoys (7) is two, the buoys are symmetrically arranged at the upper end of the buoyancy tank (15), and the outer sides of the buoys (7) are coated with fluorescent prompt signs.

6. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: the side holes (8) are symmetrically arranged at the lower parts of the front side and the rear side of the caisson main body (1), the width of each side hole does not exceed one third of the width of the corresponding side face, the length of each side hole is the same as that of each side face, and the perimeter of each side hole (8) is smaller than that of each exchange hole (14).

7. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: inflation tube (9) run through caisson main part (1) from left to right, and length is greater than the length of caisson main part (1), girth and locating hole (10) phase-match, and every section is located inflation tube (9) upper end of breeding groove (12) inboard and all is provided with two ventholes (11).

8. The caisson device for cultivating filter-feeding shellfish of claim 1, wherein: the attachment plates (13) are arranged in an inverted U-shaped structure, the total number of the attachment plates is sixteen, four attachment plates are in a group, and the inner space of each attachment plate forms a culture groove (12).

Technical Field

The invention belongs to the technical field of aquaculture equipment, and particularly relates to a caisson device for culturing filter-feeding shellfish.

Background

Shellfish, one kind of mollusk, is three germ layers, bilateral symmetry, animal with true body cavity, the true body cavity of mollusk is formed by the fissure method, that is, the body cavity formed by mesoderm, but the true body cavity of mollusk is undeveloped, only exists in the surrounding heart cavity and the gonad cavity, the mollusk has great variation in shape, but can be divided into four parts in structure, head, foot, visceral sac and mantle, the head is located at the front end of the body, the foot is located at the back of the head and the abdominal surface of the body, is a multimuscular muscular movement organ extending from the body wall, the visceral sac is located at the back of the body, is an internal organ surrounded by soft, the mantle is one or a pair of membranes formed by extending and drooping the body wall at the back of the body, the cavity between the mantle and the visceral sac is the mantle, calcium carbonate is secreted from the mantle to the body surface, forms one or two shells to surround the whole body, a few kinds of shells are surrounded by body walls or completely disappear, basic structures of the shells are greatly changed and distinguished in different classes, mollusks have complete digestive tracts, a breathing and circulating system appears, a back kidney which is more evolved than an original kidney also appears, filter-feeding shellfish is cultured to a certain specification and then transferred to a sea area for culture, basic hardware facilities are generally used for culture in the sea area, the conventional caisson device for culturing the filter-feeding shellfish is inconvenient for exchanging water bodies between the interior of the caisson body and the external environment, and the attachment plates are provided with protruding edges and corners, so that the filter-feeding shellfish is easily punctured and damaged, and the survival rate of the filter-feeding shellfish is influenced.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a caisson device for cultivating filter-feeding shellfish, which is characterized in that through the arrangement of side holes, the water body exchange between the interior of the caisson main body and the external environment is realized, so that the circulation of the water body in the caisson main body is ensured, through the arrangement of the exchange holes, the caisson device not only can be used for exchanging the water body with the external environment, but also can discharge dirt generated by the filter-feeding shellfish in the growth and development process in time, so that the cultivation effect of the filter-feeding shellfish is ensured.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a breed caisson device of filter-feeding shellfish, includes the caisson main part, the lid that opens and shuts is installed to the front end of caisson main part, the front end of opening and shutting the lid is provided with the connection lock, buoyancy tank is installed to the upper end of caisson main part, fastening connection sleeve is installed in the left side of buoyancy tank, fastening connection sleeve's inboard is provided with connects the rope, the outside of connecting the rope is provided with fixed couple, the buoy is installed to the upper end of buoyancy tank, the inboard of caisson main part is provided with the side hole, the inboard of caisson main part is provided with the gas tube, the upper end of gas tube is provided with the venthole, the inboard of caisson main part is provided with the attachment plate, the inboard of attachment plate is provided with the locating hole, the inboard of caisson main part is provided with breeds the groove, the inboard of caisson main part is provided with the.

Preferably, the caisson main body is a rectangular caisson and is provided with four layers, rectangular bait feeding ports are arranged in the middle of the front end of the caisson main body, each layer is divided into a plurality of small-sized area spaces, the size of each bait feeding port is slightly smaller than that of each opening-closing cover, and each opening-closing cover is positioned right at the front end of each bait feeding port; the caisson main part is used for filter-feeding shellfish to carry out the place of breeding, the setting of feeding mouth is convenient for carry out artifical bait casting and clear away the incomplete bait, open through opening the lid with opening earlier, then throw the bait through the inside that the mouth drops into the caisson main part of feeding, and then realize the artifical bait casting breed to filter-feeding shellfish, after a period of breed time, when needing to throw the bait once more, earlier clear away the interior remaining bait of caisson main part earlier, avoid influencing the growth and the survival rate of filter-feeding shellfish because of the rotten of bait, and then improve the high efficiency that filter-feeding shellfish was bred.

Preferably, the connecting locks are eight in number, two connecting locks are in a group, each connecting lock comprises a lower end connecting block, a lower end connecting hole, a movable bolt, an upper end connecting block and a reset spring, the two connecting locks are symmetrically installed, the lower end connecting block is of a rectangular structure and is fixedly installed at the front end of the caisson main body, the lower end connecting hole is formed in the inner side of the lower end connecting block, the lower end connecting hole is of a cylindrical structure, the upper end connecting block is fixedly installed at the front end of the opening and closing cover, the movable bolt is arranged on the inner side of the opening and closing cover and is of a T-shaped structure, the circumference of the lower portion of the movable bolt is smaller than that; when the cover is opened to the needs, shift out through two removal bolts from the inside of corresponding lower extreme connecting hole, lower extreme connecting block and upper end connecting block are no longer connected this moment, when the cover is closed to the needs will opening and shutting, through inserting two removal bolts corresponding lower extreme connecting hole, the lower extreme connecting block is connected with the upper end connecting block this moment, the installation sets up two simultaneously and connects the lock, can ensure the caisson main part better with open and shut the being connected of cover, and then the security of guarantee caisson device use.

Preferably, the fastening connection sleeves are of a square structure, four fastening connection sleeves are provided, every two fastening connection sleeves are in a group and are symmetrically arranged at the left side and the right side of the caisson main body, and the fastening connection sleeves of the same group are positioned at the two ends of the upper part of the corresponding side surface; through the fixed connection with the fastening connection sleeve and the fixed hook respectively with the both ends of connecting the rope, make a fixed hook and a set of fastening connection sleeve constitute triangle-shaped connection structure, and then guarantee stability and security when removing the caisson main part.

Preferably, the number of the buoys is two, the buoys are symmetrically arranged at the upper end of the caisson body, and the outer sides of the buoys are coated with fluorescence prompt marks; through the installation setting of buoy, not only conveniently carry out the work of artifical bait and cleaing away incomplete bait to the caisson main part, conveniently know the concrete position of every caisson device moreover at any time.

Preferably, the side holes are symmetrically arranged at the lower parts of the front side and the rear side of the caisson main body, the width of each side hole does not exceed one third of the width of the corresponding side face, the length of each side hole is the same as that of each side face, and the perimeter of each side hole is smaller than that of each exchange hole; through the setting of side hole, realize that caisson main part is inside to carry out the exchange of water with external environment, and then the circulation of the inside water of guarantee caisson main part, through the setting in exchange hole, not only can be used for carrying out the exchange of water with external environment, can carry out timely discharge with the filth of filter-feeding shellfish in growth and development in-process output moreover to the effect of filter-feeding shellfish breed is ensured.

Preferably, the inflation pipe penetrates through the caisson main body from left to right, the length of the inflation pipe is greater than that of the caisson main body, the perimeter of the inflation pipe is matched with the positioning hole, and two air outlet holes are formed in the upper end of each inflation pipe located on the inner side of the culture tank; through the installation setting of gas tube, realize the artifical oxygenation to breeding the groove, after oxygen lets in from the entry of gas tube, along with constantly letting in of oxygen, oxygen flows to the low concentration from the high concentration, then discharges to breeding the groove through the venthole, realizes the artifical oxygenation to filter-feeding shellfish, and then ensures the oxygen demand that filter-feeding shellfish grows and develops to improve the survival rate that filter-feeding shellfish was bred.

Preferably, the attachment plates are arranged in an inverted U-shaped structure, the total number of the attachment plates is sixteen, four attachment plates are in a group, and the inner space of each attachment plate forms a culture trough; the attachment plate is used for filtering edible shellfish to adhere to, and its surface area of the attachment plate that the type of falling U structure set up is great, and the filtering edible shellfish that can hold is also relatively more, and the attachment plate of the type of falling U structure top is convex structure moreover, does not have convex edges and corners, can not produce the puncture injury to filtering edible shellfish, and then improves the survival rate of filtering edible shellfish.

Compared with the prior art, the invention has the beneficial effects that: when the open-close cover needs to be opened, the two movable bolts are moved out from the corresponding lower end connecting holes, the lower end connecting block is not connected with the upper end connecting block, when the open-close cover needs to be covered, the two movable bolts are inserted into the corresponding lower end connecting holes, the lower end connecting block is connected with the upper end connecting block, and the two connecting locks are arranged, so that the connection between the caisson body and the open-close cover can be better ensured, the use safety of the caisson device is further ensured, the two ends of the connecting rope are respectively fixedly connected with the fastening connecting sleeves and the fixed hooks, so that the fixed hooks and a group of fastening connecting sleeves form a triangular connecting structure, the stability and the safety of the caisson body during moving are further ensured, and the operations of manually casting bait and removing residual bait to the caisson body are facilitated through the arrangement of the buoy, the specific position of each caisson device can be conveniently known at any time, the water body exchange between the interior of the caisson main body and the external environment can be realized through the arrangement of the side holes, the circulation of the water body in the caisson main body can be further ensured, the caisson device can be used for exchanging the water body with the external environment through the arrangement of the exchange holes, dirt generated in the growth and development process of the filter-feeding shellfish can be timely discharged, the filter-feeding shellfish culture effect can be further ensured, the artificial oxygenation of the culture tank can be realized through the installation arrangement of the inflation tube, after oxygen is introduced from the inlet of the inflation tube, the oxygen flows from high concentration to low concentration along with the continuous introduction of the oxygen and then is discharged to the culture tank through the air outlet holes, the artificial oxygenation of the filter-feeding shellfish can be realized, the oxygen demand for the growth and development of the filter-feeding shellfish can be further ensured, and the survival rate of the filter-feeding shellfish culture can be further improved, the attachment plate is used for filtering edible shellfish to adhere to, and its surface area of the attachment plate that the type of falling U structure set up is great, and the filtering edible shellfish that can hold is also relatively more, and the attachment plate of the type of falling U structure top is convex structure moreover, does not have convex edges and corners, can not produce the puncture injury to filtering edible shellfish, and then improves the survival rate of filtering edible shellfish.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front sectional view of the caisson body according to the invention;

FIG. 3 is a schematic top sectional view of the caisson body of the present invention;

FIG. 4 is a schematic bottom view of the caisson of the present invention;

FIG. 5 is a schematic cross-sectional view of the connecting lock of the present invention;

in the figure: 1. a caisson body; 2. opening and closing the cover; 3. connecting a lock; 31. a lower end connecting block; 32. a lower end connecting hole; 33. moving the bolt; 34. an upper end connecting block; 35. a return spring; 4. fastening the connecting sleeve; 5. Connecting ropes; 6. fixing the hook; 7. a float; 8. a side hole; 9. an inflation tube; 10. positioning holes; 11. An air outlet; 12. a culture tank; 13. an attachment plate; 14. an exchange well; 15. a buoyancy tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: a caisson device for culturing filter-feeding shellfish comprises a caisson main body 1, an opening-closing cover 2 is arranged at the front end of the caisson main body 1, the front end of the opening and closing cover 2 is provided with a connecting lock 3, the upper end of the caisson main body 1 is provided with a buoyancy tank 15, a fastening connecting sleeve 4 is arranged at the left side of the buoyancy tank 15, a connecting rope 5 is arranged at the inner side of the fastening connecting sleeve 4, a fixed hook 6 is arranged on the outer side of the connecting rope 5, a buoy 7 is arranged at the upper end of the buoyancy tank 15, the inner side of the caisson main body 1 is provided with a side hole 8, the inner side of the caisson main body 1 is provided with an inflation tube 9, the upper end of the inflation tube 9 is provided with an air outlet 11, the inner side of the caisson main body 1 is provided with an attachment plate 13, the inner side of the attachment plate 13 is provided with a positioning hole 10, the inner side of the attachment plate 13 is provided with a culture groove 12, and the inner side of the caisson main body 1 is provided with an exchange hole 14.

Specifically, the caisson main body 1 is a rectangular caisson and is provided with four layers, rectangular bait feeding ports are arranged in the middle of the front end of the caisson main body, each layer is divided into a plurality of small-sized area spaces, the size of each bait feeding port is slightly smaller than that of the opening and closing cover 2, and the opening and closing cover 2 is positioned right in front of the bait feeding ports; caisson main part 1 is used for the filter-feeding shellfish to carry out the place of breeding, the setting of feeding mouth is convenient for carry out artifical bait casting and clear away the incomplete bait, open through opening and shutting lid 2 earlier, then throw the bait into the inside of caisson main part 1 through the mouth of feeding, and then realize the artifical bait casting breed to filter-feeding shellfish, after a period of breed time, when needing to throw the bait once more, earlier clear away remaining bait in caisson main part 1, avoid influencing the growth and development and the survival rate of filter-feeding shellfish because of the rotten of bait, and then improve the high efficiency that filter-feeding shellfish was bred.

Specifically, the connecting locks 3 are eight in number, two connecting locks are in a group, each connecting lock comprises a lower end connecting block 31, a lower end connecting hole 32, a moving bolt 33, an upper end connecting block 34 and a return spring 35, the two connecting locks 3 are symmetrically installed, the lower end connecting block 31 is of a rectangular structure and is fixedly installed at the front end of the caisson main body 1, the lower end connecting hole 32 is formed in the inner side of the lower end connecting block 31, the lower end connecting hole 32 is of a cylindrical structure, the upper end connecting block 34 is fixedly installed at the front end of the opening and closing cover 2, the moving bolt 33 is arranged on the inner side of the opening and closing cover, the moving bolt 33 is of a T-shaped structure, the perimeter of the lower portion of the moving bolt 33 is smaller than; when the need will open and shut and cover 2 and open, shift out through the inside with two removal bolts 33 follow corresponding lower extreme connecting hole 32, lower extreme connecting block 31 and upper end connecting block 34 are no longer connected this moment, when needs will open and shut and cover 2 lid fashionable, through inserting corresponding lower extreme connecting hole 32 with two removal bolts 33, lower extreme connecting block 31 and upper end connecting block 34 are connected this moment, the installation sets up two and connects lock 3 simultaneously, can ensure caisson main part 1 and the connection of opening and shutting cover 2 better, and then guarantee the security that caisson device used.

Specifically, the fastening and connecting sleeves 4 are of a square structure, four in total, each two are a group, and are symmetrically arranged at the left side and the right side of the caisson main body 1, and the fastening and connecting sleeves 4 in the same group are positioned at the two ends of the upper part of the corresponding side surface; through the both ends of will connecting rope 5 respectively with the fixed connection of fastening connection sleeve 4 and fixed couple 6, make a fixed couple 6 and a set of fastening connection sleeve 4 constitute triangle-shaped connection structure, and then guarantee stability and security when removing caisson main part 1.

Specifically, the total number of the buoys 7 is two, the buoys are symmetrically arranged at the upper end of the caisson body 1, and the outer sides of the buoys 7 are coated with fluorescent prompt marks; through the installation setting of buoy 7, not only conveniently carry out the work of artifical bait and cleaing away the incomplete bait to caisson main part 1, conveniently know the concrete position of every caisson device moreover at any time.

Specifically, the side holes 8 are symmetrically arranged at the lower positions of the front side and the rear side of the caisson main body 1, the width of each side hole does not exceed one third of the width of the corresponding side face, the length of each side hole is the same as that of the corresponding side face, and the perimeter of each side hole 8 is smaller than that of the exchange hole 14; through the setting of side hole 8, realize that 1 inside and external environment of caisson main part carry out the exchange of water, and then the circulation of the inside water of guarantee caisson main part 1, through the setting of exchange hole 14, not only can be used for carrying out the exchange of water with external environment, can carry out timely discharge with the filth of filter-feeding nature shellfish in the growth and development in-process output moreover to the effect of filter-feeding nature shellfish breed is ensured.

Specifically, the inflation tube 9 penetrates through the caisson main body 1 from left to right, the length of the inflation tube is greater than that of the caisson main body 1, the circumference of the inflation tube is matched with the positioning hole 10, and two air outlet holes 11 are formed in the upper end of each inflation tube 9 located on the inner side of the culture tank 12; through the installation setting of gas tube 9, realize the artifical oxygenation to breeding groove 12, after oxygen lets in from the entry of gas tube 9, along with constantly letting in of oxygen, oxygen flows to the low concentration from the high concentration, then discharges to breeding groove 12 through venthole 11, realizes the artifical oxygenation to filter-feeding shellfish, and then ensures the oxygen demand that filter-feeding shellfish grows and develops to improve the survival rate that filter-feeding shellfish was bred.

Specifically, the attachment plates 13 are arranged in an inverted U-shaped structure, sixteen attachment plates are arranged, four attachment plates are in a group, and the inner space of each attachment plate forms a culture trough 12; attachment plate 13 is used for filtering feeding shellfish's adhesion, and its surface area of attachment plate 13 that the type of falling U structure set up is great, and the filtering feeding shellfish that can hold is also relatively more, and the attachment plate 13 of the type of falling U structure top is convex structure moreover, does not have convex edges and corners, can not produce the puncture injury to filtering feeding shellfish, and then improves the survival rate of filtering feeding shellfish.

The working principle and the using process of the invention are as follows: when the device is used, the caisson device is firstly placed at a position to be used, the caisson body 1 is used in a place for culturing filter-feeding shellfish, the bait casting port is arranged to facilitate manual bait casting and residual bait removal, when the opening and closing cover 2 is required to be opened, the two movable bolts 33 are moved out from the corresponding lower connecting holes 32, the lower connecting block 31 and the upper connecting block 34 are not connected, then bait is cast into the caisson body 1 through the bait casting port, thereby realizing the manual bait casting and culturing of the filter-feeding shellfish, when the opening and closing cover 2 is required to be closed, the two movable bolts 33 are inserted into the corresponding lower connecting holes 32, the lower connecting block 31 and the upper connecting block 34 are connected, and the two connecting locks 3 are arranged simultaneously, thereby better ensuring the connection between the caisson body 1 and the opening and closing cover 2 and further ensuring the use safety of the caisson device, after a period of cultivation time, when bait is required to be fed again, residual bait in the caisson main body 1 is firstly removed, the influence on the growth and the survival rate of filter-feeding shellfish due to the deterioration of the bait is avoided, the high efficiency of filter-feeding shellfish cultivation is further improved, a fixed hook 6 and a group of fastening connecting sleeves 4 form a triangular connecting structure by fixedly connecting two ends of a connecting rope 5 with the fastening connecting sleeves 4 and the fixed hooks 6 respectively, the stability and the safety when the caisson main body 1 is moved are further ensured, the operation of manually feeding and removing residual bait to the caisson main body 1 is facilitated through the installation and the arrangement of the buoy 7, the specific position of each caisson device is conveniently known at any time, the interior of the buoyancy tank 15 is of a hollow structure and is used for providing buoyancy, the water body exchange between the interior of the caisson main body 1 and the external environment is realized through the arrangement of the side holes 8, thereby ensuring the circulation of the water inside the caisson main body 1, through the arrangement of the exchange holes 14, not only being used for exchanging the water with the external environment, but also discharging the dirt generated by the filter-feeding shellfish in the growth and development process in time, thereby ensuring the effect of the culture of the filter-feeding shellfish, through the installation arrangement of the inflation tube 9, realizing the artificial oxygenation of the culture tank 12, when the oxygen is introduced from the inlet of the inflation tube 9, along with the continuous introduction of the oxygen, the oxygen flows from high concentration to low concentration, and then is discharged to the culture tank 12 through the air outlet hole 11, realizing the artificial oxygenation of the filter-feeding shellfish, thereby ensuring the oxygen demand for the growth and development of the filter-feeding shellfish, thereby improving the survival rate of the filter-feeding shellfish culture, the attachment plate 13 is used for the attachment of the filter-feeding shellfish, the attachment plate 13 arranged in the inverted U-shaped structure has larger surface area, and can contain relatively more filter-feeding shellfish, and the top of the attachment plate 13 with the inverted U-shaped structure is of a circular arc structure without convex edges and corners, so that the filter feeding shellfish can not be punctured and damaged, and the survival rate of the filter feeding shellfish can be further improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.