Movable soft-shelled turtle floating spawning ground and application method

By designing a mobile floating spawning ground for Chinese soft-shelled turtles, the problem of existing devices being unable to move flexibly in various water areas has been solved, achieving stable floating and efficient spawning, reducing construction costs, and making it suitable for various aquaculture environments.

CN119522875BActive Publication Date: 2026-05-19浙江省水产技术推广总站(浙江省渔业检验检测与疫病防控中心)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
浙江省水产技术推广总站(浙江省渔业检验检测与疫病防控中心)
Filing Date
2024-12-12
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing Chinese soft-shelled turtle spawning devices cannot be moved flexibly in environments such as reservoirs, lakes, and rice paddies, resulting in problems with fixed installation methods and high relocation costs.

Method used

A mobile floating spawning ground for Chinese soft-shelled turtles was designed, including a detachable spawning chamber frame structure, a floating cavity, and positioning components. It can float stably in different waters and provides multi-layered spawning grounds through a lifting structure and frame-shaped inlet and outlet design, adapting to various aquaculture models.

Benefits of technology

It enables flexible movement and stable floating of Chinese soft-shelled turtle spawning grounds, reduces construction costs, increases egg production, and is suitable for various aquaculture models such as rice paddies, lakes, and reservoirs, reducing facility investment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of aquaculture, and particularly discloses a movable Chinese soft-shelled turtle floating oviposition field and an application method, which comprises a bottom plate, a detachable oviposition house frame structure arranged on the bottom plate, and a space formed between the oviposition house frame structure and the bottom plate as an oviposition house; a floating cavity and a buoyancy piece are arranged at the bottom of the bottom plate, a positioning assembly is arranged at the bottom of the floating cavity, and a fixed anchor assembly is arranged at the bottom of the positioning assembly; a frame-shaped entrance and a frame-shaped exit are respectively arranged at opposite sides of the oviposition house frame structure; an entrance ladder is arranged at the frame-shaped entrance; an exit ladder is arranged at the frame-shaped exit, and the surface of the exit ladder is a smooth inclined surface; a lifting structure is arranged on the oviposition house frame structure, a plurality of single-layer oviposition plates are detachably arranged on the lifting structure, an oviposition cavity is arranged in each single-layer oviposition plate, and a sliding section of the oviposition cavity is arranged on each single-layer oviposition plate; and a climbing section of the oviposition cavity is arranged on each single-layer oviposition plate. The application has the characteristics of movable setting mode, good flexibility and low moving cost.
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Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, and in particular to a mobile floating spawning ground for Chinese soft-shelled turtles and its application method. Background Technology

[0002] Due to its high economic value, the Chinese soft-shelled turtle is widely farmed artificially. Farming methods include pond monoculture, ecological farming, fish-turtle polyculture, and greenhouse farming. Through scientific feeding and management, the reproduction rate and growth rate can be effectively improved. The Chinese soft-shelled turtle primarily feeds on fish, shrimp, and mollusks, but also consumes aquatic plants, grains, and other plant-based foods. Mating typically occurs in autumn, with females laying eggs in early May of the following year. They can lay eggs multiple times a year, with each spawning containing approximately 10-30 eggs. After an incubation period of 40 to 70 days, the hatchlings emerge. Furthermore, sufficient water and land access are essential for their healthy growth during artificial farming. Patent document CN112602665A discloses an apparatus and method for artificial micro-ecosystem farming of Chinese soft-shelled turtles. The apparatus includes a farming cabinet with multiple drawer-type farming boxes. Each box has an open, box-like structure, containing terrestrial and aquatic areas for the turtles. The terrestrial area includes a resting platform and an egg-laying area. A feeding device is located on the resting platform. The farming cabinet also includes a control system and a water-changing device. The control system includes a temperature control device. A lighting device, a spraying device, and a ventilation device are installed on the farming cabinet above the boxes. This method creates an artificial micro-ecosystem within a small area, meeting the environmental requirements for Chinese soft-shelled turtle farming. It has the advantages of small footprint and low environmental control costs, making it highly practical. However, this apparatus and method can only be used for egg-laying and egg collection in fixed farming environments such as ponds. It cannot be moved and cannot meet the egg-laying needs of Chinese soft-shelled turtles in environments such as reservoirs, lakes, and rice paddies.

[0003] Therefore, the existing methods for spawning and collecting Chinese soft-shelled turtles suffer from problems such as fixed setup methods, poor flexibility, and high relocation costs. Summary of the Invention

[0004] This invention aims to solve the aforementioned technical problems existing in the current process of spawning and collection of Chinese soft-shelled turtles, and provides a mobile floating spawning ground for Chinese soft-shelled turtles and its application method. It can be matched with various aquaculture models such as rice-turtle, lotus-turtle, and reservoir and lake turtle farming. It can be flexibly moved according to actual needs, without the need for separate construction, reducing the construction cost of the aquaculture area and reducing facility investment. It has the characteristics of movable setting, good flexibility and low relocation cost.

[0005] The first technical solution of the present invention: a movable floating spawning ground for Chinese soft-shelled turtles, comprising several base plates, on which a detachable spawning chamber frame structure is provided, the space between the spawning chamber frame structure and the base plate forming the spawning chamber; a floating cavity and several buoyancy components are provided at the bottom of the base plate, the buoyancy components are located around the floating cavity, a positioning component is provided at the bottom of the floating cavity, the upper part of the positioning component is movably located within the floating cavity, and a fixing anchor component is provided at the bottom of the positioning component; a frame-shaped inlet and a frame-shaped outlet are respectively opened on opposite sides of the spawning chamber frame structure; several entrance ladders are provided at the frame-shaped inlet, the upper ends of the entrance ladders pointing towards the frame. The spawning chamber has an inlet, with the lower end of the inlet ladder extending into the water of the aquaculture pond; the outlet has several outlet ladders, each with a smooth, sloping surface, its upper end located at the outlet and its lower end extending into the water of the aquaculture pond; the frame structure of the spawning chamber is equipped with a lifting mechanism, on which several single-layer spawning plates are detachably mounted, each single-layer spawning plate containing a spawning cavity, and a ramp section guiding the spawning cavity, the upper end of which corresponds to the inlet of the frame; the single-layer spawning plate also has a climbing section guiding the spawning cavity, the upper end of which corresponds to the outlet of the frame. The base plate in this invention provides stable support for other components, enabling the entire spawning unit to float stably on the surface of specific water bodies such as rice-turtle, lotus-turtle, reservoir, and lake turtle farming. The spawning chamber frame structure blocks external wind and sun, providing a relatively quiet and stable environment for the Chinese soft-shelled turtle to lay and collect eggs. The overall assembly of the spawning chamber frame structure is detachable, and the installation between it and the base plate is also detachable, making assembly and disassembly convenient. The space between the spawning chamber frame structure and the base plate forms the spawning chamber, providing a quiet spawning environment for turtles during the spawning period, reducing external environmental interference to the Chinese soft-shelled turtles entering the spawning chamber to lay eggs, and increasing the egg production. The floating cavity and several buoyancy components in this invention enable the entire spawning unit to float stably on the water surface and can be adjusted in time to ensure the relative stability inside the spawning chamber under water surface fluctuations. The positioning component fixes the anchor component. The activity is confined within the floating chamber. The depth of the entire spawning unit relative to the horizontal water level can be adjusted in real time as needed using the fixed anchor assembly. In lakes and rivers with large surface fluctuations, the stability of the spawning unit can be better ensured by adjusting the weight and limit of the fixed anchor assembly. The frame-shaped inlet of this invention facilitates the Chinese soft-shelled turtle's smooth entry into the spawning area within the spawning chamber. The frame-shaped outlet facilitates the Chinese soft-shelled turtle's crawling out of the spawning chamber after spawning and returning to the water. The inlet ladder allows the Chinese soft-shelled turtle to easily and smoothly climb to the frame-shaped inlet. The outlet ladder is used for the turtle to smoothly return to the water after spawning. The surface of the outlet ladder is a smooth slope. Once the turtle climbs to the outlet ladder, it will smoothly return to the water under the action of gravity, without having to climb back. This makes the entire process of entering through the frame-shaped inlet and climbing out through the frame-shaped outlet a one-way process.The lifting structure allows for the creation of multiple spawning sites within the spawning chamber. The lifting mechanism allows these sites to be accessed via the framed inlet and outlet, enabling turtles to crawl in and out of their designated spawning areas. This increases the spawning space within the chamber, accommodating a larger number of turtles and providing greater choice in spawning locations. Several single-layer spawning plates further enhance the spawning options. These plates are detachable and mounted on the lifting structure for easy placement, removal, egg collection, and cleaning. The height of the spawning chamber can be adjusted as needed using the lifting structure. The spawning cavity serves as the turtle's specific spawning site, designed for comfortable spawning. A ramp guiding the spawning cavity facilitates access to the single-layer spawning sites. The turtles at the entrance of the egg-laying plate smoothly slide into the spawning cavity to lay their eggs, preventing them from climbing out again from the entrance of the single-layer egg-laying plate. The ramp guiding the spawning cavity allows the turtles to smoothly climb out of the spawning cavity to the exit ladder after laying their eggs. The spawning facility of this invention is formed by connecting multiple spawning units, making it suitable for large-scale use. It can realize various aquaculture modes such as rice-turtle, lotus-turtle, and turtle farming in reservoirs and lakes. It can be flexibly moved according to actual needs without the need for separate construction. Simply move each spawning unit to a new aquaculture area and reconnect them, reducing the construction cost of the aquaculture area and the investment in facilities. It features a movable setting, good flexibility, and low relocation cost.

[0006] Preferably, the base plate is made of stainless steel. A base plate made of stainless steel is not easily rusted and also has good strength.

[0007] Preferably, the entire spawning chamber frame structure is made of fiberglass. Fiberglass spawning chamber frame structures are both lightweight and durable.

[0008] Preferably, the spawning chamber frame structure is formed by splicing together a first baffle, a second baffle, a third baffle, and a first plug-in baffle. The spawning chamber frame structure formed by splicing the first baffle, second baffle, third baffle, and first plug-in baffle often uses snap-fit ​​and clip-fit ​​methods to connect various baffle structures together, realizing a modular design of each component of the floating spawning farm. This can greatly reduce construction time and the construction cost of the spawning farm, and can adapt to different aquaculture environments by replacing some modules, increasing the flexibility of the spawning farm.

[0009] Preferably, the first side of the base plate is provided with a pair of first insertion grooves; there are two first baffles, and the bottom of the first baffle is provided with a first fastening block, which is slidably fastened in the corresponding first insertion groove.

[0010] A vertical insertion slot is embedded in the upper corner of the first baffle, and the first insertion baffle is inserted into the vertical insertion slot;

[0011] The first insertion baffle includes a sealing end and an insertion end, the insertion end being located below the sealing end and inserted into two vertical insertion slots;

[0012] The frame-shaped inlet is formed by overlapping two first baffles, a first plug-in baffle, and a bottom plate;

[0013] A pair of first double-headed plug blocks are provided on the side of the first baffle away from the vertical plug slot;

[0014] The base plate has a second insertion groove and a first snap-fit ​​groove arranged side by side on the opposite second and fourth sides. The first snap-fit ​​groove is located above the second insertion groove, and the extension direction of the second insertion groove is perpendicular to the extension direction of the first insertion groove.

[0015] There are two second baffles, which are respectively inserted into the second insertion groove and the first snap-fit ​​groove on the second and fourth sides of the bottom plate.

[0016] The bottom of the second baffle is provided with a first insertion strip and an insertion protrusion arranged side by side. The first insertion strip is inserted into the second insertion groove, and the insertion protrusion is inserted into the first snap-fit ​​groove.

[0017] The second baffle is provided with a pair of first frame-shaped insertion slots on the side where it is spliced ​​with the first baffle, and the first double-headed insertion block is fitted into the corresponding first frame-shaped insertion slots;

[0018] A second double-ended plug block is provided on the side of the second baffle away from the first frame-shaped plug slot;

[0019] The third baffle consists of two mesh support plates and a mesh rod, with both ends of the mesh rod connected to the two mesh support plates respectively;

[0020] The third baffle is provided with a pair of second frame-shaped insertion slots, which cooperate with the corresponding second double-headed insertion blocks;

[0021] The pair of second frame-type insertion slots are set on the corresponding mesh support plates. After the pair of first insertion sliding grooves cooperate with the first snap-fit ​​blocks on the corresponding first baffles, the two first baffles can be quickly and easily disassembled and assembled on the base plate; the insertion ends are inserted into the two vertical insertion slots, enabling the first insertion baffles to be quickly and easily disassembled and assembled on the first baffles; the cooperation between the first insertion strip and the second insertion sliding groove, and the cooperation between the insertion protrusion and the first snap-fit ​​groove, enables the two second baffles to be quickly and easily disassembled and assembled on the base plate; the cooperation between the first double-headed insertion block and the first frame-type insertion slot enables the two second baffles to be quickly and easily disassembled and assembled with the first baffle; the cooperation between the pair of second frame-type insertion slots and the corresponding second double-headed insertion blocks enables the third baffle to be quickly and easily disassembled and assembled with the second baffle; the entire assembly structure is simple, easy to assemble and disassemble, and has good stability after installation.

[0022] Preferably, the first insertion groove has a right-angle hook-shaped structure. The right-angle hook-shaped first insertion groove can better limit the first fastening block, making it easier for the first fastening block to fit into the first insertion groove, effectively preventing disengagement after engagement, and ensuring the stability of the connection.

[0023] Preferably, a sealing block is provided on the side where the second baffle is joined to the first baffle. The sealing block covers the first insertion strip and the insertion protrusion. The sealing block acts as a limit, allowing the first insertion strip and the insertion protrusion to be directly inserted into the second insertion groove and the first snap-fit ​​groove until they are fully inserted, without any additional adjustment.

[0024] Preferably, the netting pole has a U-shaped structure. The U-shaped structure facilitates stable installation of the bird netting, is easy to manufacture, and also has good aesthetic appeal.

[0025] Preferably, the third baffle, composed of the two mesh support plates and the mesh rod, is a one-piece molded structure. The one-piece molded third baffle is easy to manufacture and also has good strength.

[0026] Preferably, the netting pole is equipped with a bird-proof net. Installing the bird-proof net on the open side of the spawning chamber effectively reduces damage to the eggs and disturbance to the normal egg-laying of the Chinese soft-shelled turtle by large and medium-sized birds. The net is suspended from top to bottom, 30cm from the top of the frame-shaped exit, preventing large and medium-sized birds from swooping down and allowing the Chinese soft-shelled turtles free access to the spawning grounds.

[0027] Preferably, the bird netting is made of steel mesh or synthetic fiber mesh. Bird netting made of steel mesh or synthetic fiber mesh has good strength and resistance to wind, sun, and rain.

[0028] Preferably, the bird netting, the mesh support plate, and the base plate overlap to form a frame-shaped outlet.

[0029] Preferably, the spawning chamber frame structure is provided with a triangular apex. The triangular apex can effectively prevent rainwater from flowing into the spawning chamber and causing water accumulation, thus not affecting the spawning behavior of the Chinese soft-shelled turtle and the normal preservation of the eggs.

[0030] Fiberglass is recommended as the material, with 5cm thick insulating foam filling inside to protect the spawning grounds of the Chinese soft-shelled turtle from wind and rain.

[0031] Preferably, the triangular finial is made of fiberglass. A triangular finial made of fiberglass is both lightweight and durable.

[0032] Preferably, the triangular dome includes a mounting plate, which is set on top of the spawning chamber frame structure. Rain drains are provided on both sides of the mounting plate, and the rain drains are inclined downwards. The rain drains are connected to the mounting plate via a structure where a rod and a hole cooperate. The rain drains overlap the top of the spawning chamber frame structure and have arc-shaped rain channels. The mounting plate and the rain drains are filled with insulating foam material. The mounting plate can be detachably installed on top of the spawning chamber frame structure, and two rain drains can be assembled together to form a triangular dome shape. The downwardly inclined rain drains effectively prevent rainwater from flowing into the spawning chamber and causing water accumulation. The rain drains are connected to the mounting plate via a structure where a rod and a hole cooperate, facilitating assembly and disassembly. The arc-shaped rain channels allow rainwater to flow in better, preventing water accumulation. The insulating foam material filling the mounting plate and the rain drains provides insulation for the spawning chamber in cold weather, providing a more comfortable temperature environment for turtle spawning.

[0033] Preferably, the downward tilt angle of the rain drain is 15° to 20°. More preferably, the downward tilt angle of the rain drain is 16° to 19°. Even more preferably, the downward tilt angle of the rain drain is 17° to 18°. Rain drains with a limited tilt angle allow rainwater to be retained effectively and also have a better aesthetic appearance.

[0034] Preferably, the floating cavity is located at the center of the bottom plate. This central location helps maintain the balance and stability of the spawning unit on the water surface.

[0035] Preferably, the buoyancy component is a buoyancy tank, and there are four buoyancy components, which are located at the four bottom corners of the bottom plate. The placement of the four buoyancy tanks at the four bottom corners of the bottom plate better ensures that the spawning unit floats on the water surface, maintaining a stable and balanced spawning environment.

[0036] Preferably, the buoyancy tank is made of PVC material and is a square buoyancy tank. PVC material provides good corrosion resistance; a square buoyancy tank offers better buoyancy.

[0037] Preferably, the positioning component includes a limiting platform movably disposed within the floating cavity. A positioning rod is located at the bottom of the limiting platform and is movably disposed relative to the floating cavity. The end of the positioning rod furthest from the limiting platform is located outside the floating cavity, and a telescopic rod is located at the telescopic end of the positioning rod furthest from the limiting platform. The fixing anchor assembly is disposed at the telescopic end of the telescopic rod. The limiting platform, interacting and cooperating within the floating cavity, effectively and gently transmits the force of the fixing anchor assembly to the bottom plate, thus maintaining the stability of the spawning unit in the water. The positioning rod, movably disposed relative to the floating cavity, effectively and gently transmits the force of the fixing anchor assembly to the limiting platform. The telescopic rod is an elastic telescopic rod, which gently transmits the force of the fixing anchor assembly to the bottom plate positioning rod.

[0038] Preferably, the telescopic end of the telescopic rod is rotatably fitted with a pivot sleeve, and a pivot is rotatably mounted on the pivot sleeve. The fixed anchor assembly is mounted on the pivot via an anchor shackle. The pivot sleeve can rotate 360 ​​degrees flexibly at the telescopic end of the telescopic rod, allowing the fixed anchor assembly to rotate and adjust flexibly according to the underwater environment. The purpose is simply to maintain the draft and stable buoyancy of the spawning unit in the corresponding water area by weight. The pivot allows the fixed anchor assembly to rotate and adjust flexibly according to the underwater environment. The anchor shackle facilitates the assembly and disassembly of the fixed anchor assembly and the pivot, and is used for the dedicated connection of the fixed anchor assembly.

[0039] Preferably, the fixed anchor assembly includes an anchor shank, which is mounted on a rotating shaft via an anchor shackle. A stabilizing rod is inserted into the middle of the anchor shank. A balance buckle is provided at one end of the anchor shank, and an anchor claw mounting bracket is provided at the end of the anchor shank away from the balance buckle. The setting direction of the anchor claw mounting bracket is perpendicular to the extension direction of the anchor shank. A counterweight is detachably provided on the anchor claw mounting bracket, and a shovel-shaped anchor claw is hung on the anchor claw mounting bracket. The shovel-shaped anchor claw is connected to the anchor claw mounting bracket via a chain. The anchor shank serves as the supporting and balancing structure for the entire fixed anchor assembly; the stabilizing bar maintains the anchor shank's balance and stability in the water; the balance buckle and counterweight are balanced, and by adjusting their weight, the draft and stable buoyancy of the spawning unit in the corresponding water area can be effectively adjusted; the shovel-shaped anchor claw is connected to the anchor claw mounting frame via a chain, and the shovel-shaped anchor claw is finally thrown into the water, sinks, and is fixed to the bottom, thus effectively confining the entire spawning unit and preventing it from drifting away with the current; the anchor claw mounting frame provides a stable installation position for the shovel-shaped anchor claw and counterweight.

[0040] Preferably, the lifting structure includes several mounting brackets, which are mounted on the spawning chamber frame structure. A first drive shaft is rotatably mounted on the mounting bracket, and a drive sprocket is mounted on the first drive shaft. A first driven shaft is rotatably mounted on the mounting bracket, and a driven sprocket is mounted on the first driven shaft. The drive sprocket is connected to the driven sprocket via a transmission chain. A drive motor is mounted on the mounting bracket, and the drive end of the drive motor is connected to the first drive shaft. The transmission chain is composed of several chain links rotatably connected. Each chain link has a support groove, and an inner fastening plate is engaged in the support groove. The single-layer spawning plate is fastened to the inner fastening plate. The mounting bracket is used for the stable installation of the lifting structure on the spawning chamber frame structure; the lifting and lowering of a single-layer spawning plate can be adjusted by the forward and reverse rotation of the drive motor; the tension of the entire transmission chain can be adjusted by adjusting the number of chain links; the placement slot can stably limit the inner buckle plate on the corresponding chain link; after the inner buckle plate stably limits the single-layer spawning plate, the single-layer spawning plate can be driven to lift and lower accordingly under the forward and reverse rotation of the drive motor. The inner buckle plate can be set in the corresponding placement slot as needed to provide turtles with more spawning options.

[0041] Preferably, the mounting bracket is disposed on the second baffle.

[0042] Preferably, the oviposition cavity is provided with a recessed oviposition trough, which is lined with a layer of vermiculite. The recessed oviposition trough provides a stable oviposition location for the turtles. To reduce the weight of traditional oviposition sites filled with fine sand, vermiculite, which weighs 1 / 4 of that, is chosen as the filling material, making it easier for the Chinese soft-shelled turtles to dig oviposition pits. In addition, vermiculite has good water retention, so it can be moistened when collecting turtle eggs, which can basically ensure the temperature and humidity required for the fertilized eggs of the Chinese soft-shelled turtles during the oviposition process.

[0043] Preferably, the entrance staircase is provided with several first ramp steps arranged in parallel. These first ramp steps facilitate the turtles' ascent to the corresponding single-layer egg-laying plate.

[0044] Preferably, the surface of the ladder leading to the room is provided with a polyethylene mesh with a mesh size of 2cm to 3cm. The polyethylene mesh with a limited mesh size makes it easier for the turtles to grip with their claws and climb to the corresponding single-layer egg-laying plate.

[0045] Preferably, the climbing section is provided with several second climbing steps. These second climbing steps facilitate the turtles' exit from the spawning cavity after spawning and their journey to the corresponding exit ladder.

[0046] Preferably, the surface of the climbing section is provided with a polyethylene mesh with a mesh size of 2cm to 3cm. The polyethylene mesh with a limited mesh size facilitates the turtle's claws to grip the mesh, allowing the turtle to climb out of the spawning cavity and reach the corresponding exit ladder after laying its eggs.

[0047] Preferably, adjacent base plates are connected by flexible connectors to form a spawning field. The connection of adjacent spawning units to form a spawning field provides good spawning stability.

[0048] Preferably, the flexible connector is a chain or cable. Chains or cables have good strength and flexibility, which can better ensure the operational stability of the entire spawning ground.

[0049] The second technical solution of the present invention: a method for applying a mobile floating spawning ground for Chinese soft-shelled turtles, comprising the following steps:

[0050] (S01) Move one of the spawning units in the spawning grounds to the spawning waters of the Chinese soft-shelled turtle;

[0051] (S02) The number of single-layer oviposition plates in the oviposition unit in step (S01) is adjusted by the lifting structure in the oviposition unit;

[0052] (S03) The water inlet rise of the spawning unit in step (S02) is adjusted by the fixed anchor assembly in the spawning unit; the orientation of the spawning unit in step (S02) is adjusted by the positioning assembly in the spawning unit.

[0053] (S04) Based on the status of the spawning unit in step (S03), move other spawning units in the spawning ground to the spawning waters of the Chinese soft-shelled turtle, and make adjustments according to the methods in steps (S02) and (S03);

[0054] (S05) Connect all the oviposition units in step (S04) together using flexible connectors;

[0055] (S06) If it is necessary to change the spawning area, the flexible connector in step (S05) should be released, and steps (S01) to (S05) should be repeated. The spawning farm of the present invention is formed by connecting multiple spawning units, which is suitable for large-scale use and can realize various aquaculture modes such as rice-turtle, lotus-turtle, and reservoir and lake turtle farming. It can be flexibly moved according to actual needs without the need for separate construction. It is only necessary to move a single spawning unit to a new aquaculture area and reconnect it, which reduces the construction cost of the aquaculture area and reduces the investment in facilities. It has the characteristics of movable setting, good flexibility and low relocation cost.

[0056] Therefore, the present invention has the following beneficial effects:

[0057] (1) The base plate provides stable support for other components, enabling the entire spawning unit to float stably on the specific water surfaces of rice-turtle, lotus-turtle, reservoir and lake turtle farming; the spawning room frame structure can block external wind and sun, providing a relatively quiet and stable environment for the specific spawning and egg collection of Chinese soft-shelled turtles; the overall assembly of the spawning room frame structure is detachable, and the installation between it and the base plate is also detachable, making disassembly and assembly relatively convenient; the space between the spawning room frame structure and the base plate forms the spawning room, providing a quiet specific spawning environment for turtles in the spawning period, reducing the interference of the external environment on the Chinese soft-shelled turtles entering the spawning room to spawn, and increasing the egg production;

[0058] (2) The floating chamber and several buoyancy components enable the entire spawning unit to float stably on the water surface and make timely adjustments under water surface fluctuations to ensure the relative stability inside the spawning chamber; the positioning component restricts the movement of the fixed anchor component within the floating chamber. The fixed anchor component can adjust the water depth of the entire spawning unit relative to the horizontal as needed in real time. In lakes and rivers with large water surface fluctuations, the positioning component can better ensure the stability of the spawning unit by adjusting the weight of the fixed anchor component.

[0059] (3) The frame-shaped inlet facilitates the Chinese softshell turtle's smooth entry into the spawning chamber; the frame-shaped outlet facilitates the softshell turtle's exit from the spawning chamber after spawning and its return to the water; the inlet ladder allows the softshell turtle to easily and smoothly climb to the frame-shaped inlet; the outlet ladder allows the softshell turtle to smoothly return to the water after spawning; the surface of the outlet ladder is a smooth slope, so once the softshell turtle climbs to the outlet ladder, it will smoothly return to the water under the action of gravity, without having to climb back, making the entire process of entering from the frame-shaped inlet and climbing out from the frame-shaped outlet a one-way process; the lifting structure allows multiple spawning sites to be formed in the spawning chamber, and the lifting structure allows the spawning sites to reach the frame-shaped inlet and outlet, enabling the softshell turtle to move from the corresponding spawning sites to the spawning chamber. The design allows turtles to crawl in and out of the spawning area, increasing the spawning space within the spawning chamber and enabling a larger number of turtles to lay eggs, thus providing more choices for their spawning sites. Several single-layer spawning boards offer even more options for egg laying, and these boards are detachable and mounted on the lifting structure for easy placement, removal, egg collection, or cleaning. The height of the spawning chamber can be adjusted as needed using the lifting structure. The spawning cavity is the turtle's specific spawning site, designed for comfortable egg laying. A ramp guiding the spawning cavity allows turtles to smoothly slide into the cavity from the entrance of the single-layer spawning board to lay eggs, preventing them from crawling out again from the entrance. A ramp guiding the spawning cavity allows turtles to smoothly crawl out of the cavity to the exit ladder after laying eggs.

[0060] (4) The spawning farm is formed by connecting multiple spawning units, which is suitable for large-scale use and can realize various breeding modes such as rice-turtle, lotus-turtle, and turtle farming in reservoirs and lakes. It can be flexibly moved according to actual needs without separate construction. It is only necessary to move a single spawning unit to a new breeding water area and reconnect it, which reduces the construction cost of the breeding area and reduces the investment in facilities. It has the characteristics of movable setting method, good flexibility and low moving cost.

[0061] Instruction manual illustrations

[0062] Figure 1 This is a first structural schematic diagram of the present invention;

[0063] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0064] Figure 3 This is a schematic diagram of the third structure of the present invention;

[0065] Figure 4 This is a first internal structure diagram of the present invention;

[0066] Figure 5 This is a second internal structure diagram of the present invention;

[0067] Figure 6 This is a schematic diagram of the structure of the entrance and exit staircases of the present invention;

[0068] Figure 7 This is a schematic diagram of the structure of the base plate of the present invention;

[0069] Figure 8 This is a schematic diagram of the first structure at the first baffle of the present invention;

[0070] Figure 9 This is a schematic diagram of the second structure at the first baffle of the present invention;

[0071] Figure 10 This is a schematic diagram of the second structure at the first insertion baffle of the present invention;

[0072] Figure 11 This is a schematic diagram of the first structure at the second baffle of the present invention;

[0073] Figure 12 This is a schematic diagram of the second structure at the second baffle of the present invention;

[0074] Figure 13 This is a schematic diagram of the structure of the third baffle in this invention;

[0075] Figure 14 This is a structural schematic diagram of the lifting structure of the present invention;

[0076] Figure 15This is a structural schematic diagram of the fixed anchor assembly of the present invention;

[0077] Figure 16 This is a schematic diagram of the positioning component of the present invention.

[0078] The labels in the attached diagram are as follows: 100-spawning chamber; 101-bottom plate; 10111-first insertion groove; 10112-second insertion groove; 10113-first snap-fit ​​groove; 102-single-layer spawning plate; 1021-spawning cavity; 1022-frame-shaped inlet; 1023-frame-shaped outlet; 1024-spawning trough; 1025-vermiculite layer; 103-buoyancy component; 200-spawning chamber frame structure; 201-first baffle; 2011-first fastening block; 2012 - Vertical insertion slot; 2013 - First double-ended insertion block; 202 - First insertion baffle; 2021 - Sealing end; 2022 - Insertion end; 203 - Second baffle; 2031 - First insertion strip; 2032 - Insertion protrusion; 2033 - First frame-type insertion slot; 2034 - Sealing block; 2035 - Second double-ended insertion block; 204 - Third baffle; 2041 - Netting support plate; 2042 - Netting rod; 2043 - Second frame-type insertion... 205-Birdproof netting; 206-Entry staircase; 2062-Slide section; 207-Exit staircase; 2071-Climbing section; 208-Lifting structure; 2081-First drive shaft; 20811-Drive sprocket; 2082-First driven shaft; 20821-Driven sprocket; 2083-Transmission chain; 20831-Chain link; 20832-Support slot; 20834-Inner fastening plate; 2084-Mounting bracket; 300-Triangular top; 301 - Rain drain; 3013- Arc-shaped rain drain; 3014- Mounting plate; 400- Floating cavity; 500- Positioning assembly; 501- Limiting platform; 502- Positioning rod; 503- Telescopic rod; 504- Rotary shaft sleeve; 5041- Rotary shaft; 505- Fixed anchor assembly; 5051- Anchor handle; 5052- Anchor shackle; 5053- Stabilizing rod; 5054- Balance buckle; 5055- Anchor claw mounting bracket; 5056- Shovel-shaped anchor claw; 5057- Counterweight. Detailed Implementation

[0079] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0080] like Figure 1 , Figure 2 and Figure 3 The movable floating spawning grounds of the Chinese softshell turtle shown include several such Figure 7 The base plate 101 shown has a detachable spawning chamber frame structure 200, and the space between the spawning chamber frame structure and the base plate forms the spawning chamber 100; the bottom of the base plate is provided with... Figure 5The floating cavity 400 and several buoyancy components 103 are shown. The buoyancy components are located around the periphery of the floating cavity, and the bottom of the floating cavity is provided with... Figure 4 The positioning component 500 shown has its upper part movably located within the floating cavity, and its bottom is provided with... Figure 15 The fixed anchor assembly 505 shown; the opposite sides of the spawning chamber frame structure are respectively provided with a frame-shaped inlet 1022 and a frame-shaped outlet 1023; the frame-shaped inlet is provided with several such Figure 6 The shown entrance ladder 206 has its upper end pointing towards the frame-shaped inlet and its lower end extending into the aquaculture pond water. Several exit ladders 207 are provided at the frame-shaped outlet. The surface of each exit ladder is a smooth slope, with its upper end located at the frame-shaped outlet and its lower end extending into the aquaculture pond water. The spawning chamber frame structure is equipped with... Figure 14 The lifting structure 208 shown has several detachable single-layer spawning plates 102. Each single-layer spawning plate has a spawning cavity 1021 inside. Each single-layer spawning plate has a landslide section 2062 that guides the spawning cavity. The upper end of the landslide section corresponds to the frame-shaped inlet. Each single-layer spawning plate has a climbing section 2071 that guides the spawning cavity. The upper end of the climbing section corresponds to the frame-shaped outlet.

[0081] The base is made of stainless steel. The entire frame structure of the spawning room is made of fiberglass.

[0082] The spawning room frame structure is made of, for example Figure 8 The first baffle 201 shown is as follows: Figure 11 The second baffle 203 shown is as follows: Figure 13 The third baffle 204 shown and as Figure 10 The first insertion baffle 202 shown is spliced ​​together to form a base plate. A pair of first insertion grooves 10111 are provided on the first side of the base plate; there are two first baffles, and the bottom of the first baffles is provided with... Figure 9 The first fastening block 2011 shown is slidably fastened in the corresponding first insertion groove;

[0083] A vertical insertion slot 2012 is embedded in the upper corner of the first baffle, and the first insertion baffle is inserted into the vertical insertion slot;

[0084] The first insertion baffle includes a sealing end 2021 and an insertion end 2022. The insertion end is located below the sealing end and is inserted into two vertical insertion slots.

[0085] The frame-type inlet is formed by overlapping two first baffles, a first plug-in baffle, and a bottom plate;

[0086] A pair of first double-headed plug blocks 2013 are provided on the side of the first baffle away from the vertical plug slot;

[0087] The bottom plate has a second insertion groove 10112 and a first snap-fit ​​groove 10113 arranged side by side on the opposite second and fourth sides. The first snap-fit ​​groove is located above the second insertion groove, and the extension direction of the second insertion groove is perpendicular to the extension direction of the first insertion groove.

[0088] There are two second baffles, which are respectively inserted into the second insertion groove and the first snap-fit ​​groove on the second and fourth sides of the bottom plate.

[0089] The bottom of the second baffle is provided with parallel structures such as... Figure 12 The first insert strip 2031 and the insert protrusion 2032 shown are inserted into the second insert groove and the insert protrusion is inserted into the first snap-fit ​​groove.

[0090] The second baffle is provided with a pair of first frame-shaped insertion slots 2033 on the side where it is spliced ​​with the first baffle, and the first double-headed insertion block is fitted into the corresponding first frame-shaped insertion slot;

[0091] A second double-headed plug-in block 2035 is provided on the side of the second baffle away from the first frame-shaped plug-in slot;

[0092] The third baffle consists of two mesh support plates 2041 and a mesh rod 2042, with the two ends of the mesh rod connected to the two mesh support plates respectively.

[0093] The third baffle is provided with a pair of second frame-shaped insertion slots 2043, which cooperate with the corresponding second double-headed insertion blocks;

[0094] A pair of second frame-type insertion slots are set on the corresponding mesh support plate.

[0095] The first insertion groove has a right-angle hook-shaped structure. A sealing block 2034 is provided on the side where the second baffle connects to the first baffle, and the sealing block covers the first insertion strip and the insertion protrusion. The mesh rod has a U-shaped structure. The third baffle, composed of two mesh support plates and the mesh rod, is a one-piece molded structure. A bird-proof net 205 is provided on the mesh rod. The bird-proof net is made of steel mesh or synthetic fiber mesh. The bird-proof net, mesh support plates, and base plate overlap to form a frame-shaped outlet.

[0096] The spawning room frame structure is topped with a triangular dome 300, made of fiberglass. The triangular dome includes a mounting plate 3014, which is positioned on top of the spawning room frame structure. Rain drains 301 are located on both sides of the mounting plate, sloping downwards. The rain drains are connected to the mounting plate via a structure that uses inserts and holes, overlapping the top of the spawning room frame structure. Each rain drain has an arc-shaped rain trough 3013. The mounting plate and rain drains are filled with insulating foam material. The downward sloping angle of the rain drains is 15°–20°.

[0097] The floating chamber is located at the center of the base plate. The buoyancy components are four buoyancy barrels, positioned at the four corners of the bottom of the base plate. The buoyancy barrels are made of PVC material and are square in shape.

[0098] The positioning assembly includes a limiting platform 501, which is movably disposed within the floating cavity. A positioning rod 502 is located at the bottom of the limiting platform and is movably disposed relative to the floating cavity. The end of the positioning rod furthest from the limiting platform is located outside the floating cavity. A telescopic rod 503 is located at the telescopic end of the telescopic rod. A fixing anchor assembly is disposed on the telescopic end of the telescopic rod. A rotating shaft sleeve 504 is rotatably fitted onto the telescopic end of the telescopic rod. A rotating shaft 5041 is rotatably mounted on the rotating shaft sleeve. The fixing anchor assembly is mounted on the rotating shaft via an anchor shackle 5052.

[0099] Fixed anchor components include, for example Figure 16 The anchor shank 5051 shown is mounted on a rotating shaft via an anchor shackle. A stabilizing rod 5053 is inserted into the middle of the anchor shank. A balance buckle 5054 is located at one end of the anchor shank, and an anchor claw mounting bracket 5055 is located at the end of the anchor shank away from the balance buckle. The anchor claw mounting bracket is positioned perpendicular to the extension direction of the anchor shank. A counterweight 5057 is detachably mounted on the anchor claw mounting bracket, and a shovel-shaped anchor claw 5056 is hung on the anchor claw mounting bracket. The shovel-shaped anchor claw 5056 is connected to the anchor claw mounting bracket via a chain with a width of 8cm to 10cm.

[0100] The lifting structure includes several mounting brackets 2084, which are mounted on the spawning chamber frame structure. A first drive shaft 2081 is rotatably mounted on the mounting bracket, with a drive sprocket 20811 mounted on the first drive shaft. A first driven shaft 2082 is rotatably mounted on the mounting bracket, with a driven sprocket 20821 mounted on the first driven shaft. The drive sprocket is connected to the driven sprocket via a transmission chain 2083. A drive motor is mounted on the mounting bracket, and the drive end of the drive motor is connected to the first drive shaft. The transmission chain consists of several chain links 20831 rotatably connected. Each chain link has a support groove 20832, within which an inner retaining plate 20834 is engaged. A single-layer spawning board is secured to the inner retaining plate. The mounting bracket is mounted on a second baffle.

[0101] The spawning cavity contains a recessed spawning trough 1024, lined with a vermiculite layer 1025. Several first-level ramp steps are arranged side-by-side on the entrance staircase. The surface of the entrance staircase is covered with a polyethylene mesh with a mesh size of 2-3 cm. Several second-level ramp steps are provided on the ramp section. The surface of the ramp section is also covered with a polyethylene mesh with a mesh size of 2-3 cm. Adjacent base plates are connected by flexible connectors, forming a spawning area. The flexible connectors are chains or cables.

[0102] The application method of the mobile floating spawning ground for Chinese soft-shelled turtles includes the following steps:

[0103] (S01) Move one of the spawning units in the spawning grounds to the spawning waters of the Chinese soft-shelled turtle;

[0104] (S02) The number of single-layer oviposition plates in the oviposition unit in step (S01) is adjusted by the lifting structure in the oviposition unit;

[0105] (S03) Adjust the water entry height of the spawning unit in step (S02) by using the balance buckle and counterweight in the fixed anchor assembly in the spawning unit; rotate and adjust the orientation of the spawning unit in step (S02) by using the positioning assembly in the spawning unit; drop the shovel-shaped anchor claw in the fixed anchor assembly to connect the spawning unit to the bottom of the water;

[0106] (S04) Based on the status of the spawning unit in step (S03), move other spawning units in the spawning ground to the spawning waters of the Chinese soft-shelled turtle, and make adjustments according to the methods in steps (S02) and (S03);

[0107] (S05) Connect all the oviposition units in step (S04) together using flexible connectors;

[0108] (S06) If it is necessary to change the spawning area, disconnect the flexible connector in step (S05) and repeat steps (S01) to (S05). The shovel-shaped anchor can be installed in each spawning unit or in at least one spawning unit, as long as the entire spawning area does not drift with the water flow.

[0109] The working principle of this invention is as follows:

[0110] The base plate 101 provides stable support for other components, allowing the entire spawning unit to float stably on the surface of specific water bodies such as rice-turtle, lotus-turtle, reservoir, and lake turtle farming. The spawning chamber frame structure 200 blocks external wind and sun, providing a relatively quiet and stable environment for the Chinese soft-shelled turtle to lay and collect eggs. The overall assembly of the spawning chamber frame structure is detachable, and the installation between it and the base plate is also detachable, making assembly and disassembly convenient. The space between the spawning chamber frame structure and the base plate forms the spawning chamber 100, providing a quiet spawning environment for turtles during the spawning period, reducing external environmental interference to the Chinese soft-shelled turtles entering the spawning chamber to lay eggs, and increasing the egg production. The floating chamber 400 and... Several buoyancy components 103 ensure the entire spawning unit floats stably on the water surface, allowing for timely adjustments to maintain relative stability within the spawning chamber amidst surface fluctuations. The positioning component 500 confines the fixed anchor component 505 within the floating cavity. This fixed anchor component allows for real-time adjustment of the spawning unit's depth relative to the horizontal. In lakes and rivers with significant surface fluctuations, adjusting the weight of the fixed anchor component further enhances the stability of the spawning unit. The frame-shaped inlet 1022 facilitates the Chinese softshell turtle's smooth entry into the spawning area within the spawning chamber. The frame-shaped outlet 1023 allows the Chinese softshell turtle to easily exit the spawning chamber after spawning and return to the water. The nesting ladder 206 facilitates the easy and smooth ascent of the Chinese softshell turtles to the frame-shaped entrance for spawning. The exit ladder 207 allows turtles to smoothly return to the water after spawning. The exit ladder has a smooth, sloping surface, ensuring that once a turtle reaches it, it will return to the water under gravity, eliminating the need to climb back. This makes the entire process of entering through the frame-shaped entrance and exiting through the frame-shaped exit a one-way process. The lifting structure 208 creates multiple spawning areas within the nesting chamber. The lifting structure allows access to both the frame-shaped entrance and exit, enabling turtles to enter and exit from their respective spawning sites, thus increasing the spawning area within the nesting chamber and facilitating a larger spawning range. The system allows for a variety of spawning sites for turtles; multiple single-layer spawning plates 102 provide even more options for spawning; these plates are detachable and mounted on the lifting structure for easy placement, removal, egg collection, or cleaning; the height of the spawning chamber can be adjusted as needed using the lifting structure; the spawning cavity 1021 is the specific spawning site for the turtles, ensuring their comfort during spawning; the sliding section 2062 guiding the spawning cavity allows turtles arriving at the entrance of the single-layer spawning plate to slide smoothly into the spawning cavity to spawn, preventing them from climbing out of the entrance again; the climbing section 2071 guiding the spawning cavity allows turtles that have finished spawning to climb smoothly out of the spawning cavity to the exit ladder.The spawning farm is formed by connecting multiple spawning units, making it suitable for large-scale use. It can support various aquaculture models such as rice-turtle, lotus-turtle, and turtle farming in reservoirs and lakes. It can be flexibly moved according to actual needs, requiring no separate construction; simply move individual spawning units to new aquaculture areas and reconnect them, reducing construction costs and facility investment.

[0111] The spawning chamber frame structure 200, formed by splicing together the first baffle 201, the second baffle 203, the third baffle 204, and the first plug-in baffle 202, uses multiple baffle structures connected together by snap-fit ​​and snap-fit ​​methods. This achieves modular design of the various components of the floating spawning farm, which can greatly reduce construction time and spawning farm construction costs. It can adapt to different breeding environments by replacing some modules, increasing the flexibility of the spawning farm. After a pair of first plug-in sliding grooves 10112 cooperate with the first snap-fit ​​blocks 2011 on the corresponding first baffles, the two first baffles can be quickly aligned on the base plate 101. Easy to assemble and disassemble; the plug end 2022 is inserted into two vertical plug slots 2012, which can quickly and easily assemble and disassemble the first plug baffle on the first baffle; the first plug strip 2031 is inserted into the second plug slide 10112, and the plug protrusion 2032 is engaged with the first snap-fit ​​groove 10113, which can quickly and easily assemble and disassemble the two second baffles and the base plate; the first double-headed plug block 2013 is engaged with the first frame-shaped plug slot 2033, which can quickly and easily assemble and disassemble the two second baffles and the first baffle; a pair of second frame-shaped plug slots 2043 and the corresponding second double-headed plug blocks 2012 are also engaged with the base plate. The 35-section design allows for quick and easy assembly and disassembly of the third and second baffles; the entire structure is simple, easy to assemble and disassemble, and provides good stability after installation; a bird net 205 is installed on the open side of the nesting chamber 100. This net effectively reduces damage to the eggs and disturbance to the normal egg-laying of the Chinese soft-shelled turtle by large and medium-sized birds (such as cranes and storks). The net is suspended from top to bottom, 30cm from the top of the frame-shaped exit, preventing large and medium-sized birds from swooping down and ensuring the free access of the Chinese soft-shelled turtles to the nesting area; the triangular top 300 effectively prevents rainwater from flowing into the nesting chamber and causing water accumulation, thus not affecting the Chinese soft-shelled turtles. The system facilitates spawning behavior and the proper preservation of turtle eggs. The mounting plate 3014 is detachably installed on top of the spawning chamber frame structure 200, simultaneously assembling two rain drains 301 together to form a triangular dome shape. The downwardly sloping rain drains effectively prevent rainwater from flowing into the spawning chamber and causing water accumulation. The rain drains are connected to the mounting plate via a structure that combines insert rods and holes, facilitating easy assembly and disassembly. The arc-shaped rain trough 3013 allows rainwater to flow in better, preventing water accumulation. The mounting plate and rain drains are filled with insulating foam material, which provides insulation for the spawning chamber in cold weather, creating a more comfortable temperature environment for turtle spawning.

[0112] The limiting platform 501, interactively positioned within the floating cavity 400, effectively and gently transmits the force of the fixed anchor assembly 505 to the bottom plate 101, maintaining the stability of the spawning unit in the water. The positioning rod 502, movable relative to the floating cavity, effectively and gently transmits the force of the fixed anchor assembly to the limiting platform. The telescopic rod 503, being an elastic telescopic rod, gently transmits the force of the fixed anchor assembly to the bottom plate positioning rod. The rotating shaft sleeve 504, capable of 360-degree flexible rotation at the telescopic end of the telescopic rod, allows the fixed anchor assembly to flexibly adjust and rotate according to the underwater environment. Its purpose is solely to maintain the draft and stable buoyancy of the spawning unit in the corresponding water area through weight. The rotating shaft 5041 enables the fixed anchor assembly to move underwater... The design allows for flexible rotation and adjustment in various environments. The anchor shackle 5052 facilitates easy assembly and disassembly of the anchor assembly and shaft, serving as a dedicated connection for the anchor assembly. The anchor shank 5051 provides support and balance for the entire anchor assembly. The stabilizing bar 5053 maintains the anchor shank's balance and stability in the water. The balance buckle 5054 and counterweight 5057 are balanced, allowing for precise adjustment of the spawning unit's draft and stable buoyancy in the corresponding water area. The shovel-shaped anchor claw 5056 is connected to the anchor claw mounting bracket 5055 via a chain, allowing the shovel-shaped anchor claw to be launched into the water and fixed to the bottom after sinking, effectively securing the entire spawning unit and preventing it from drifting away with the current. The anchor claw mounting bracket provides a stable mounting position for the shovel-shaped anchor claw and counterweight.

[0113] Mounting bracket 2084 is used for the stable installation of lifting structure 208 on spawning chamber frame structure 200; the lifting of single-layer spawning plate 102 can be adjusted by the forward and reverse rotation of drive motor; the tension of the entire transmission chain 2083 can be adjusted by adjusting the number of chain links 20831; the placement groove 20832 can stably limit the inner buckle plate 20834 on the corresponding chain link; after the inner buckle plate stably limits the single-layer spawning plate, the single-layer spawning plate is driven to lift accordingly by the forward and reverse rotation of drive motor; the inner buckle plate can be set in the corresponding placement groove as needed to provide turtles with more spawning options; the concave spawning groove 1024 provides turtles with a stable spawning position; to reduce the weight brought by the traditional spawning ground filled with fine sand, the weight is selected to be... One-quarter of the material is vermiculite, which helps the Chinese soft-shelled turtle dig its spawning pits. Vermiculite also has good water retention, so it only needs to be moistened when collecting the eggs, ensuring the temperature and humidity required for the fertilized eggs during spawning. Several first-level climbing steps facilitate the turtles' ascent to the corresponding single-layer spawning plate. A polyethylene mesh with a specific mesh size allows the turtles to grip the mesh with their claws, making it easier for them to climb to the corresponding single-layer spawning plate. Several second-level climbing steps facilitate the turtles' ascent from the spawning cavity to the corresponding exit ladder after spawning. The polyethylene mesh with a specific mesh size also allows the turtles to grip the mesh with their claws, enabling them to climb from the spawning cavity to the exit ladder after spawning. Adjacent spawning units are connected by flexible connectors to form a spawning field with good spawning stability.

[0114] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A mobile floating spawning ground for the Chinese soft-shelled turtle, characterized by: The spawning ground is formed by connecting multiple spawning units. Each spawning unit includes several base plates (101). A detachable spawning chamber frame structure (200) is provided on the base plate. The space between the spawning chamber frame structure and the base plate forms the spawning chamber (100). The bottom of the base plate is provided with a floating cavity (400) and several buoyancy components (103). The buoyancy components are located around the floating cavity. The bottom of the floating cavity is provided with a positioning component (500). The upper part of the positioning component is movable inside the floating cavity. The bottom of the positioning component is provided with a fixing anchor component (505). Frame-shaped inlets (1022) and frame-shaped outlets (1023) are respectively opened on opposite sides of the spawning chamber frame structure. Several entrance ladders (206) are provided at the frame-shaped inlets. The upper end of the inlet ladder points to the frame-shaped inlet, and the lower end of the inlet ladder extends into the water body of the aquaculture pond; the frame-shaped outlet is provided with several outlet ladders (207), the surface of the outlet ladder is a smooth inclined surface, the upper end of the outlet ladder is located at the frame-shaped outlet, and the lower end of the outlet ladder extends into the water body of the aquaculture pond; the spawning chamber frame structure is provided with a lifting structure (208), and the lifting structure is detachably provided with several single-layer spawning plates (102), the interior of the single-layer spawning plate is provided with a spawning cavity (1021), the single-layer spawning plate is provided with a slope section (2062) to guide the spawning cavity, the upper end of the slope section corresponds to the frame-shaped inlet; the single-layer spawning plate is provided with a climbing section (2071) to guide the spawning cavity, the upper end of the climbing section corresponds to the frame-shaped outlet; The buoyancy component is a buoyancy bucket, and there are four buoyancy components, which are set at the four corners of the bottom of the base plate; the buoyancy bucket is made of PVC material and is a square buoyancy bucket; The oviposition cavity is provided with a recessed oviposition groove (1024), and the oviposition groove is lined with a vermiculite layer (1025). The base plate is made of stainless steel; the entire spawning chamber frame structure is made of fiberglass; adjacent base plates are connected by flexible connectors to form a spawning area; the flexible connectors are chains or cables. The positioning assembly includes a limiting platform (501), which is movably disposed within the floating cavity. A positioning rod (502) is provided at the bottom of the limiting platform. The positioning rod is movably disposed relative to the floating cavity. The end of the positioning rod away from the limiting platform is located outside the floating cavity. A telescopic rod (503) is provided at the end of the positioning rod away from the limiting platform. The fixed anchor assembly is disposed at the telescopic end of the telescopic rod. A rotating shaft sleeve (504) is rotatably sleeved on the telescopic end of the telescopic rod. A rotating shaft (5041) is rotatably disposed on the rotating shaft sleeve. The fixed anchor assembly is disposed on the rotating shaft via an anchor shackle (5052). The lifting structure includes several mounting brackets (2084), which are mounted on the spawning room frame structure. A first drive shaft (2081) is rotatably mounted on the mounting bracket, and a drive sprocket (20811) is mounted on the first drive shaft. A first driven shaft (2082) is rotatably mounted on the mounting bracket, and a driven sprocket (20821) is mounted on the first driven shaft. The drive sprocket is connected to the driven sprocket via a transmission chain (2083). A drive motor is mounted on the mounting bracket, and the drive end of the drive motor is connected to the first drive shaft. The transmission chain is composed of several chain links (20831) rotatably connected. Each chain link has a support groove (20832), and an inner fastening plate (20834) is engaged in the support groove. The single-layer spawning plate is fastened to the inner fastening plate. Application methods of mobile floating spawning grounds for Chinese soft-shelled turtles Includes the following steps, (S01) Move one of the spawning units in the spawning grounds to the spawning waters of the Chinese soft-shelled turtle; (S02) The number of single-layer oviposition plates in the oviposition unit in step (S01) is adjusted by the lifting structure in the oviposition unit; (S03) The water depth of the spawning unit in step (S02) is adjusted by the fixed anchor assembly in the spawning unit; the orientation of the spawning unit in step (S02) is adjusted by the positioning assembly in the spawning unit. (S04) Based on the status of the spawning unit in step (S03), move other spawning units in the spawning ground to the spawning waters of the Chinese soft-shelled turtle, and make adjustments according to the methods in steps (S02) and (S03); (S05) Connect all the oviposition units from step (S04) together using flexible connectors; (S06) If it is necessary to change the spawning area, the flexible connector in step (S05) should be removed, and steps (S01) to (S05) should be repeated.

2. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 1, characterized in that: The spawning room frame structure is formed by splicing together a first baffle (201), a second baffle (203), a third baffle (204) and a first plug-in baffle (202); The first side of the base plate is provided with a pair of first insertion grooves (10111); there are two first baffles, and the bottom of the first baffle is provided with a first fastening block (2011), which is slidably fastened in the corresponding first insertion groove; A vertical insertion slot (2012) is embedded in the upper corner of the first baffle, and the first insertion baffle is inserted into the vertical insertion slot; The first plug-in baffle includes a sealing end (2021) and a plug-in end (2022), the plug-in end being located below the sealing end and inserted into two vertical plug-in slots; The frame-shaped inlet is formed by overlapping two first baffles, a first plug-in baffle, and a base plate; A pair of first double-headed plug blocks (2013) are provided on the side of the first baffle away from the vertical plug slot. The base plate has a second insertion groove (10112) and a first snap-fit ​​groove (10113) arranged side by side on the opposite second and fourth sides. The first snap-fit ​​groove is located above the second insertion groove, and the extension direction of the second insertion groove is perpendicular to the extension direction of the first insertion groove. There are two second baffles, which are respectively inserted into the second insertion groove and the first snap-fit ​​groove on the second and fourth sides of the bottom plate; The bottom of the second baffle is provided with a first insertion strip (2031) and an insertion protrusion (2032) arranged side by side. The first insertion strip is inserted into the second insertion groove, and the insertion protrusion is inserted into the first snap-fit ​​groove. The second baffle is provided with a pair of first frame-shaped insertion slots (2033) on the side where it is spliced ​​with the first baffle, and the first double-headed insertion block is fitted into the corresponding first frame-shaped insertion slot; A second double-ended plug-in block (2035) is provided on the side of the second baffle away from the first frame-shaped plug-in slot. The third baffle consists of two mesh support plates (2041) and a mesh rod (2042), with both ends of the mesh rod connected to the two mesh support plates respectively; The third baffle is provided with a pair of second frame-shaped insertion slots (2043), which cooperate with the corresponding second double-headed insertion blocks; The pair of second frame-shaped insertion slots are set on the corresponding mesh support plates.

3. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 2, characterized in that: The first insertion groove is a right-angle hook-shaped structure; a sealing block (2034) is provided on the side where the second baffle is spliced ​​with the first baffle, and the sealing block is wrapped around the first insertion strip and the insertion protrusion; the pull net rod is a U-shaped structure; the third baffle composed of the two pull net support plates and the pull net rod is an integrally formed structure.

4. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 2, characterized in that: The mesh pole is equipped with a bird-proof net (205); the bird-proof net is a steel mesh or a synthetic fiber mesh; the bird-proof net, the mesh support plate and the base plate overlap each other to form a frame-shaped outlet.

5. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 1, characterized in that: The top of the spawning room frame structure is provided with a triangular dome (300); the triangular dome is made of fiberglass; the triangular dome includes a mounting plate (3014), the mounting plate is set on the top of the spawning room frame structure, and rain drains (301) are provided on both sides of the mounting plate. The rain drains are inclined downwards and are connected to the mounting plate through a structure in which a rod and a hole cooperate. The rain drains overlap the top of the spawning room frame structure and are provided with arc-shaped rain troughs (3013). The interior of the mounting plate and the rain drains is filled with thermal insulation foam material.

6. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 1, characterized in that: The fixed anchor assembly includes an anchor shank (5051), which is mounted on a rotating shaft via an anchor shackle. A stabilizing rod (5053) is inserted into the middle of the anchor shank. A balance buckle (5054) is provided at one end of the anchor shank. An anchor claw mounting bracket (5055) is provided at the end of the anchor shank away from the balance buckle. The setting direction of the anchor claw mounting bracket is perpendicular to the extension direction of the anchor shank. A counterweight (5057) is detachably provided on the anchor claw mounting bracket. A shovel-shaped anchor claw (5056) is hung on the anchor claw mounting bracket. The shovel-shaped anchor claw (5056) is connected to the anchor claw mounting bracket via a chain.

7. The mobile floating spawning ground for Chinese soft-shelled turtles according to claim 1, characterized in that: The staircase leading into the room is provided with several first ramp steps arranged in parallel, and the surface of the staircase is provided with a polyethylene mesh with a mesh size of 2cm to 3cm. The climbing section is provided with several second climbing steps, and the surface of the climbing section is provided with a polyethylene mesh with a mesh size of 2cm to 3cm.