Sea cucumber seed breeding device

Abstract

The application relates to a sea cucumber seedling breeding device in the technical field of sea cucumber breeding. The device comprises a hanging cage, a plurality of blocking net plates rotatably connected to the hanging cage, a cover plate rotatably connected to the hanging cage, and a plurality of partition plates fixedly connected to the hanging cage. The partition plates are fixedly connected with partition nets, all the partition plates, all the partition nets and the hanging cage jointly form a plurality of breeding cavities, the breeding cavities correspond to the blocking net plates one by one, and the blocking net plates are used for blocking the adjacent breeding cavities. The device changes the communication state among all the breeding cavities in the hanging cage by deformation of the partition nets, and a fixed number of sea cucumber seeds are put into the hanging cage at one time. The sea cucumber seeds are uniformly distributed in the hanging cage by shaking the hanging cage, the operation steps of the breeders are reduced, the breeders are facilitated to operate, the sea cucumber seed putting efficiency is improved, and the artificial cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of sea cucumber breeding technology, and in particular proposes a sea cucumber seedling breeding device. Background Technology

[0002] Sea cucumbers (such as spiny sea cucumbers and imitation spiny sea cucumbers) are marine aquaculture organisms with high economic value and play an important role in the aquaculture industry. Their seedling breeding technology is directly related to the scale of aquaculture and economic benefits. At present, sea cucumber seedling breeding mainly adopts two methods: hanging cages and net cages.

[0003] The core device of the hanging cage seedling cultivation is a cage-like container (usually made of bamboo, wood, plastic, or nylon mesh) suspended in the water. The inside is lined with substrates such as kelp, ropes, and tiles for sea cucumber seedlings to attach and grow. Most existing hanging cages have six independent compartments, each of which needs to be operated separately. This means that when releasing sea cucumber seedlings, it is necessary to first open the sealing plates of the compartments one by one, then place a fixed number of substrates into the compartments, then place a fixed number of sea cucumber seedlings into each compartment, and then close the sealing plates. This operation is cumbersome and labor-intensive, especially in large-scale aquaculture farms, which will significantly increase labor costs. Summary of the Invention

[0004] In order to overcome the shortcomings described in the background art, the present invention provides a sea cucumber seedling breeding device.

[0005] The technical implementation of the present invention is as follows: a sea cucumber seedling breeding device, comprising a cage, wherein the cage is rotatably connected to a plurality of sealing mesh plates; The cover plate is rotatably connected to one side of the cage; A plurality of partition boards are fixedly connected to the cage. Each partition board is fixedly connected to a partition mesh. All the partition boards, all the partition meshes, and the cage together form multiple breeding chambers. Each breeding chamber corresponds one-to-one with a sealing mesh plate. The sealing mesh plate is used to seal adjacent breeding chambers. A drive mechanism, mounted on the cage, is used to move all the partition nets to connect all the breeding chambers.

[0006] More preferably, the driving mechanism includes a pulling frame, a fixed frame, a limiting ring, and a limiting component. The pulling frame is slidably connected to the cage. The number of fixed frames is the same as the number of partition nets. The fixed frames are fixedly connected to the side of the adjacent partition nets away from the partition plate and to the pulling frame. The limiting ring is fixedly connected to the pulling frame. The limiting component is disposed on the cage and is used to limit the pulling frame.

[0007] More preferably, the fixed frame has a first inclined surface on the side away from the pulling frame, and the cage has a second inclined surface near all the fixed frames. The inclination direction of the first inclined surface on the fixed frame is the same as the inclination direction of the adjacent second inclined surface on the cage.

[0008] More preferably, the limiting component includes a fixed plate and a rotating column. The fixed plate is fixedly connected to the side of the cage near the pulling frame, and the rotating column is rotatably connected to the limiting ring. The fixed plate is used to limit the rotation column.

[0009] More preferably, the limiting component further includes: A rotating ring is located on the side of the rotating column away from the fixed plate.

[0010] More preferably, all the sealing mesh panels and the fixing plates are located on both sides of the cage.

[0011] More preferably, it also includes: A screening mechanism, disposed within the cage, is used to sort the materials within the cage. The screening mechanism includes: The number of connecting plates is the same as the number of partition nets, and they are respectively fixed to the side of the adjacent fixed frame away from the pull frame. Both the connecting plates and the cover plate are fixed with partition nets, and the side of the partition nets away from the sealing net plate is fixed to the cage. A control component, mounted on the cage, is used to change the state of the partition net.

[0012] More preferably, the separator is made of an elastic material and has a corrosion-resistant coating on its surface.

[0013] More preferably, the control component includes: The limiting rails are symmetrically distributed and are all installed inside the cage; The pull rope is slidably connected to the symmetrically distributed limiting rails; The number of support members is the same as the number of the partition nets. They are all slidably connected between the symmetrically distributed limit rails and are all fixed to the pull ropes. The support members are used to compress the adjacent partition nets. The support members are located on the side of the adjacent partition nets closer to the cover plate.

[0014] More preferably, it also includes: The symmetrically distributed support frames are all slidably connected to the cage and respectively fixed to the adjacent limiting rails, which are slidably connected to the cage.

[0015] Compared with the prior art, the present invention has the following advantages: The present invention utilizes the deformation of the partition net to change the communication state between all the breeding chambers in the cage, and puts a fixed number of sea cucumber seedlings into the cage at one time. By shaking the cage, the sea cucumbers inside are evenly distributed, reducing the operation steps of the farmer, facilitating the farmer's operation, improving the efficiency of sea cucumber seedling release, and thus reducing labor costs.

[0016] This invention utilizes the deformation of a separating net to divide sea cucumbers in the breeding chamber into two parts. By deforming the separating net, all breeding chambers are connected, allowing sea cucumbers near the separating net to be discharged from the cage in a unified manner. This reduces the number of steps for farmers, improves the efficiency of sea cucumber sorting, and further reduces labor costs.

[0017] This invention adjusts the position of the support frame according to the size of the individual sea cucumbers, changes the position of the support pressing against the dividing net, adjusts the position of the raised part of the dividing net, controls the number of sea cucumbers on both sides of the raised part of the dividing net, and thus adjusts the number of sea cucumbers left in the cage, so that the number of sea cucumbers left in the cage corresponds to the size of the individual sea cucumbers, thereby improving the applicability of this device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the sealing mesh plate and cover plate of the present invention; Figure 3 This is a three-dimensional structural diagram of the components inside the cage of the present invention; Figure 4 This is a three-dimensional structural diagram of the cover plate of the present invention when it is opened; Figure 5 This is a three-dimensional structural diagram of the partition plate and partition mesh of the present invention; Figure 6 This is a three-dimensional structural diagram of the pull frame and connecting plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the pull frame and fixing plate of the present invention; Figure 8 This is a three-dimensional structural diagram of the fixed plate and rotating column of the present invention; Figure 9 This is a three-dimensional structural diagram of the rotating column and rotating ring of the present invention; Figure 10 This is a three-dimensional structural diagram of the connecting plate and the partition mesh of the present invention; Figure 11 This is a three-dimensional structural diagram of the limiting rail and support frame of the present invention; Figure 12 This is a three-dimensional structural diagram of the pull rope and support component of the present invention; Figure 13This is a three-dimensional structural diagram of the support member and support frame of the present invention.

[0019] The components in the attached diagram are labeled as follows: 1. Cage, 2. Sealing mesh plate, 3. Cover plate, 4. Partition plate, 5. Partition mesh, 21. Pulling frame, 22. Fixing frame, 23. Limiting ring, 31. Fixing plate, 32. Rotating column, 33. Rotating ring, 41. Connecting plate, 42. Separating mesh, 51. Limiting rail, 52. Pull rope, 53. Support component, 61. Support frame. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0021] This embodiment discloses a sea cucumber seedling breeding device for cultivating sea cucumber seedlings.

[0022] Reference Figures 1-6 As shown, it includes a cage 1, which is rotatably connected to six sealing mesh panels 2. All the sealing mesh panels 2 are fixedly connected to a handle (such as...). Figure 2 This facilitates the unified opening of all sealing mesh panels 2. The cage 1 is equipped with switches for limiting the movement of the sealing mesh panels 2 (e.g., ...). Figure 2 Cover plate 3 is rotatably connected to the lower side of cage 1. Cover plate 3 is used to seal cage 1. A switch for limiting the position of cover plate 3 is provided on the lower side of cage 1 (e.g., Figure 2 The cage 1 has five partition plates 4, all of which are fixed inside the cage 1. All partition plates 4 are arranged in a linear array. Each partition plate 4 is fixed with a partition net 5, which is an existing fishing net. All partition plates 4, all partition nets 5, and the cage 1 together form six breeding chambers. Each breeding chamber corresponds to a sealing net plate 2. The sealing net plate 2 is used to seal adjacent breeding chambers. A drive mechanism is set on the cage 1 to move all the partition nets 5 so that all the breeding chambers are connected.

[0023] Reference Figures 1-7 and Figure 10As shown, the driving mechanism includes a pulling frame 21, a fixed frame 22, a limiting ring 23, and a limiting assembly. The pulling frame 21 is slidably connected to the cage 1. The surface of the pulling frame 21 is coated with a corrosion-resistant coating to reduce corrosion caused by seawater. The number of fixed frames 22 is the same as the number of partition nets 5. The fixed frames 22 are U-shaped and surround the partition nets 5. The fixed frames 22 are fixed to the side of the adjacent partition nets 5 away from the partition plate 4 and to the pulling frame 21. The pulling frame 21 can drive all the fixed frames 22 to move, thereby controlling the opening and folding of all the partition nets 5. When the pulling frame 21 moves to the right, the pulling frame 21 causes all the partition nets 5 to change to a folded state through all the fixed frames 22, thereby... All the breeding chambers are interconnected. When the pulling frame 21 moves to the left, the pulling frame 21 causes all the partition nets 5 to gradually open through all the fixed frames 22, and the breeding chambers are no longer interconnected. The limiting ring 23 is fixed to the pulling frame 21. The limiting component is set on the cage 1 to limit the pulling frame 21. The fixed frame 22 is provided with a first inclined surface on the side away from the pulling frame 21. The cage 1 is provided with a second inclined surface near all the fixed frames 22. The second inclined surface is used to guide the sea cucumber and prevent the sea cucumber from staying at the position where the fixed frame 22 contacts the side wall of the cage 1, so as not to be squeezed by the fixed frame 22. The inclination direction of the first inclined surface on the fixed frame 22 is the same as the inclination direction of the adjacent second inclined surface on the cage 1.

[0024] Reference Figure 3 and Figures 6-9 As shown, the limiting assembly includes a fixed plate 31 and a rotating column 32. The fixed plate 31 is fixedly connected to the side of the cage 1 near the pulling frame 21, and the rotating column 32 is rotatably connected to the limiting ring 23. The fixed plate 31 is used to limit the rotating column 32. The limiting assembly also includes a rotating ring 33, which is located on the side of the rotating column 32 away from the fixed plate 31. All the sealing mesh plates 2 and the fixed plate 31 are located on both sides of the cage 1.

[0025] In the above scheme, a method for locking the pulling frame 21 is proposed to prevent it from moving arbitrarily under the drive of seawater. The fixing plate 31 is located on the right side of the cage 1. The fixing plate 31 has a circular cavity inside, and the right side of the fixing plate 31 has a square groove communicating with the inner circular cavity (e.g., Figure 9 The left side of the rotating column 32 has two rectangular protrusions. The rectangular protrusions of the rotating column 32 can rotate in the circular cavity of the fixed plate 31. When the rectangular protrusions of the rotating column 32 are aligned with the square groove of the fixed plate 31, the two rectangular protrusions of the rotating column 32 can pass through the square groove of the fixed plate 31. The rotating ring 33 can drive the rotating column 32 to rotate, which is convenient for the breeder to operate.

[0026] The specific operation procedure of the sea cucumber seedling breeding device in this embodiment is as follows: Breeding preparation: First, the breeding area is built using bamboo or rafts, and the hanging cage 1 is moved to the breeding area. Then, the breeder places the sea cucumber seedlings and various substrates in the breeding area to facilitate subsequent stocking operations.

[0027] Sea cucumber seedling release: When releasing sea cucumber seedlings, first open the switch of the blocking cover 3 and open the cover 3. Then, the farmer holds the handle on the left sealing mesh plate 2 with one hand and the rotating ring 33 on the right with the other hand, causing the rotating ring 33 to rotate 90°. The rotating ring 33 causes the rotating column 32 to rotate, so that the two rectangular protrusions of the rotating column 32 are aligned with the square groove of the fixed plate 31. Then, the farmer pulls the rotating ring 33 to the right. The rotating ring 33 drives the pulling frame 21 to move to the right through the rotating column 32 and the limiting ring 23. The pulling frame 21 slides along the cage 1. At the same time, the pulling frame 21 drives all the fixed frames 22. The fixed frames 22 drive the left side of the adjacent partition net 5 to move to the right, so that the partition net 5 is folded. After the pulling frame 21 can no longer move, stop pulling the rotating ring 33. At this time, all the partition nets 5 are in the folded state, that is, all the breeding chambers are in the interconnected state. At this time, the farmer places the cage 1 horizontally, so that the rotating ring 33 is on top (the following directions are described according to the angle after rotation).

[0028] After all the breeding chambers are connected, the farmer puts the required number of sea cucumber seedlings and substrate (the number is the sum of the fixed number of sea cucumber seedlings in the six breeding chambers) into the cage 1 through the cover plate 3. Then, the cover plate 3 is closed and the switch at the cover plate 3 is used to limit it. Then, the farmer holds the left and right sides of the cage 1 (view after horizontal placement) and shakes the cage 1 left and right (repeatedly three to five times). During the shaking of the cage 1, the sea cucumber seedlings and substrate inside it are gradually dispersed and evenly distributed in each breeding chamber. Through the deformation of the partition net 5, the connection between all the breeding chambers in the cage 1 is changed, and a fixed number of sea cucumber seedlings are put into the cage 1 at one time. This reduces the farmer's operation steps, improves the efficiency of sea cucumber seedling release, and thus reduces costs.

[0029] After stopping the shaking of cage 1, the breeder pushes the rotating ring 33. The rotating ring 33 drives the pulling frame 21 to move through the rotating column 32 and the limiting ring 23. The pulling frame 21 gradually opens all the partition nets 5 through all the fixed frames 22 until the two rectangular protrusions of the rotating column 32 enter the circular cavity inside it through the square groove of the fixed plate 31 again. Then the fixed frame 22 contacts the side wall of cage 1. Then the breeder drives the rotating ring 33 to rotate 90° in the opposite direction and then stops moving the rotating ring 33. At this time, the fixed plate 31 limits the rotating column 32 again, all the partition nets 5 are fully opened, and all the breeding chambers in cage 1 are no longer connected to each other.

[0030] After stopping the rotating ring 33, the breeder restores cage 1 to its vertical position (e.g.,Figure 1 Then, place cage 1 in the designated breeding area. At this point, the sea cucumber seedling release operation of one cage 1 is completed. Then repeat the above operation to continue to place sea cucumber seedlings in the remaining cages 1. Example 2

[0031] This embodiment discloses a sea cucumber seedling breeding device. Based on Embodiment 1, this embodiment has the function of sorting mature sea cucumbers.

[0032] As sea cucumber larvae grow, their need for space, oxygen, and food increases, while the available space in the cage gradually decreases. Due to insufficient space, sea cucumbers may compete for attachment substrates or food, and may even bite each other. Therefore, when this happens, it is necessary to sort the sea cucumbers in the cage, removing some from the initial cage and placing them in other cages.

[0033] In the current sea cucumber sorting process, after opening the partition cavity of the cage, the sea cucumbers need to be taken out one by one until the density of the remaining sea cucumbers in the partition cavity reaches a specified value, and then the partition cavity is sealed one by one. This process is cumbersome.

[0034] Reference Figures 3-7 , Figure 10 and Figure 11 As shown, it also includes a screening mechanism, which is set inside the cage 1, for sorting the materials inside the cage 1. The screening mechanism includes: connecting plates 41, the number of which is the same as the number of partition nets 5, which are fixed to the side of the adjacent fixed frame 22 away from the pulling frame 21 respectively. The connecting plates 41 and the cover plate 3 are both fixed with partition nets 42. During the opening of the cover plate 3, the cover plate 3 drives the adjacent partition nets 42 to move synchronously. The side of the partition net 42 away from the sealing net plate 2 is fixed to the cage 1. The partition net 42 is used to separate the sea cucumbers on it, so that the sea cucumbers on it are divided into two parts, one part remains in the cage 1 and the other part is discharged; a control component, set on the cage 1, for changing the state of the partition net 42; the partition net 42 is made of elastic material and has a corrosion-resistant coating on its surface.

[0035] Reference Figures 1-4 and Figures 11-13As shown, the control components include: two symmetrically distributed limit rails 51, each housed within the cage 1; pull ropes 52 slidably connected to the symmetrically distributed limit rails 51, with handles on both the upper and lower sides for easy pulling by the farmer; and support members 53, the number of which matches the number of the partition nets 42, all slidably connected to the symmetrically distributed limit rails 51 and fixedly connected to the pull ropes 52. The sliding connection between the support members 53 and the limit rails 51 is roughened to ensure proper positioning. Unable to slide freely along the limiting rail 51, and with the sliding resistance greater than the elasticity of the separating net 42, when the pull rope 52 is pulled upward, the pull rope 52 drives all the support members 53 to move upward. The support members 53 are used to squeeze the adjacent separating net 42. The squeezed part of the adjacent separating net 42 bulges upward and forms a slope. The bulging part guides the sea cucumbers, causing all the sea cucumbers to move to the left and right sides along the slope under the action of gravity, thereby realizing the sorting of the sea cucumbers. The support member 53 is located on the side of the adjacent separating net 42 closer to the cover plate 3.

[0036] In this embodiment, the limiting rail 51 is fixedly connected to the cage 1, and the limiting rail 51 is located in the middle of the cage 1 for sorting the sea cucumbers in the cage 1 in half. In the following embodiments, the limiting rail 51 is slidably connected to the cage 1.

[0037] In this embodiment, the specific operation procedure for sorting sea cucumbers using the sea cucumber seedling breeding device is as follows: As the sea cucumber seedlings grow, when it is necessary to sort some of the sea cucumbers in cage 1, the farmer takes cage 1 out of the seawater and places it on the upper side of the collection box. Then, he pulls the rope 52 upward, which causes all the support members 53 to move upward. The support members 53 squeeze the adjacent partition nets 42, causing the middle of all the partition nets 42 to bulge upward (the partition nets 42 gradually accumulate force). During the process of the middle of the partition nets 42 bulging, the bulge of the partition nets 42 guides the sea cucumbers on the left and right sides, causing the sea cucumbers to move to the left and right sides of the partition nets 42.

[0038] During the pulling of the rope 52, when the support 53 can no longer move upward, the farmer stops pulling the rope 52. Then, the farmer releases the restriction on the cover plate 3 and opens it. The cover plate 3 causes the adjacent partition net 42 to move, resulting in additional deformation. This causes sea cucumbers on the partition net 42 near the cover plate 3 to be discharged, while those on the partition net 42 away from the cover plate 3 remain in the hanging cage 1. The farmer then repeats the steps of Example 1, deforming all the partition nets 5 into a folded state, thereby connecting all the breeding chambers. This process... In the process, the fixed frame 22 drives the connecting plate 41 to move, and the connecting plate 41 drives the adjacent partition net 42 to move. The part of the partition net 42 near the partition net 5 gradually loses its support for the sea cucumbers, causing the sea cucumbers in the cage 1 near the partition net 5 to fall downwards and be discharged from the cage 1. The fallen sea cucumbers fall into the collection box. Through the deformation of the partition net 42, the sea cucumbers in the breeding chamber are divided into two parts. And by utilizing the deformation of the partition net 5, the sea cucumbers in the cage 1 near the partition net 5 are discharged in a unified manner, reducing the operation steps of the farmer and improving the efficiency of sea cucumber sorting.

[0039] After some sea cucumbers fall into the collection box inside the cage 1, the farmer repeats the operation steps of Example 1 to fully open all the partition nets 5, thereby de-connecting all the breeding chambers. Then, the pull rope 52 is pulled down, which moves all the support members 53 downward, gradually restoring all the partition nets 42 to their initial straight state. Once the support members 53 can no longer move, the partition nets 42 return to their initial state, and the sorting of sea cucumbers is completed. Example 3

[0040] This embodiment discloses a sea cucumber seedling breeding device. Based on embodiment 2, this embodiment has the function of adjusting the position of the limiting rail 51, thereby controlling the proportion of remaining sea cucumbers in the cage 1.

[0041] Reference Figures 1-4 and Figures 11-13As shown, it also includes: two symmetrically distributed support frames 61, both slidably connected to the cage 1 and respectively fixed to adjacent limiting rails 51. The limiting rails 51 are slidably connected to the cage 1. The support frames 61 are used to move the adjacent limiting rails 51, facilitating the operation of the farmer. Based on the size of the individual sea cucumbers, the number of sea cucumbers remaining in the cage 1 is determined, thereby adjusting the support frames 61 to the designated position. During the movement of the support frames 61, the support frames 61 drive the limiting rails 51 to move, and the limiting rails 51 drive the pull ropes 5 2. The support 53 moves synchronously with all the support members 53, changing the position of the support members 53 pressing on the partition net 42, thereby adjusting the position of the partition net 42 bulge and controlling the number of sea cucumbers on the left and right sides of the bulge part of the partition net 42. The fewer the number of sea cucumbers that need to be kept in the cage 1, the greater the distance the support frame 61 moves to the right. The more the number of sea cucumbers that need to be kept in the cage 1, the greater the distance the support frame 61 moves to the left. In this way, the amount of sea cucumbers kept in the cage 1 is adjusted according to the size of the individual sea cucumbers, which improves the applicability of this device.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features.

Claims

1. A sea cucumber seedling breeding device, characterized in that it includes: There is a cage (1), and the cage (1) is rotatably connected to several sealing mesh plates (2); The cover plate (3) is rotatably connected to one side of the cage (1); There are several partition plates (4), all of which are fixed inside the cage (1). The partition plates (4) are fixed with partition nets (5). All the partition plates (4), all the partition nets (5) and the cage (1) together form multiple breeding chambers. The breeding chambers correspond one-to-one with the sealing net plates (2). The sealing net plates (2) are used to seal the adjacent breeding chambers. A drive mechanism is provided on the cage (1) to drive all the partition nets (5) to move, so that all the breeding chambers are connected; The driving mechanism includes a pulling frame (21), a fixed frame (22), a limiting ring (23), and a limiting component. The pulling frame (21) is slidably connected to the cage (1). The number of fixed frames (22) is the same as the number of partition nets (5). The fixed frame (22) is fixedly connected to the side of the adjacent partition net (5) away from the partition plate (4) and to the pulling frame (21). The limiting ring (23) is fixedly connected to the pulling frame (21). The limiting component is set on the cage (1) and is used to limit the pulling frame (21). It also includes: A screening mechanism, disposed within the cage (1), is used to sort the materials within the cage (1). The screening mechanism includes: The number of connecting plates (41) is the same as the number of the partition nets (5), and they are respectively fixed to the side of the adjacent fixed frame (22) away from the pull frame (21). The connecting plates (41) and the cover plate (3) are both fixed with partition nets (42). The side of the partition nets (42) away from the sealing net plate (2) is fixed to the cage (1). A control component, mounted on the cage (1), is used to change the state of the partition net (42); The control component includes: The limiting rails (51) are symmetrically distributed and are all installed inside the cage (1); The pull rope (52) is slidably connected to the symmetrically distributed limiting rails (51); The number of support members (53) is the same as the number of the partition nets (42). They are all limited and slidably connected between the symmetrically distributed limit rails (51) and are all fixed to the pull ropes (52). The support members (53) are used to squeeze the adjacent partition nets (42) so that the middle part of all the partition nets (42) bulges upward. During the process of the middle part of the partition nets (42) bulging, the bulge of the partition nets (42) guides the sea cucumbers on the left and right sides of the partition nets (42) so that the sea cucumbers move to the left and right sides of the partition nets (42). The support members (53) are located on the side of the adjacent partition nets (42) close to the cover plate (3). It also includes: The symmetrically distributed support frames (61) are all slidably connected to the cage (1) and respectively fixed to the adjacent limiting rails (51), and the limiting rails (51) are slidably connected to the cage (1).

2. The sea cucumber seedling breeding device according to claim 1, characterized in that, The fixed frame (22) has a first inclined surface on the side away from the pull frame (21), and the cage (1) has a second inclined surface near all the fixed frames (22). The inclination direction of the first inclined surface on the fixed frame (22) is the same as the inclination direction of the adjacent second inclined surface on the cage (1).

3. A sea cucumber seedling breeding device according to claim 2, characterized in that, The limiting component includes a fixed plate (31) and a rotating column (32). The fixed plate (31) is fixedly connected to the side of the cage (1) near the pulling frame (21). The rotating column (32) is rotatably connected to the limiting ring (23). The fixed plate (31) is used to limit the rotating column (32).

4. A sea cucumber seedling breeding device according to claim 3, characterized in that, The limiting component also includes: A rotating ring (33) is disposed on the side of the rotating column (32) away from the fixed plate (31).

5. A sea cucumber seedling breeding device according to claim 4, characterized in that, All of the sealing mesh panels (2) and the fixing plates (31) are located on both sides of the cage (1).

6. A sea cucumber seedling breeding device according to claim 5, characterized in that, The separator (42) is made of an elastic material and has a corrosion-resistant coating on its surface.

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