Integrated precise domestication poecilobdella manillensis egg cocoon incubation-seedling cultivation connection system

Abstract

The invention relates to the technical field of poecilobdella manillensis breeding equipment, in particular to an integrated precise domestication poecilobdella manillensis egg cocoon hatching-seedling breeding connection system which comprises a connection bin, a lifting mechanism and a water feeder, the lifting mechanism and the water feeder are arranged in the connection bin, the connection bin comprises a pair of fixing plates, and sliding grooves communicated with the tops are formed in the fixing plates; the portion, close to the middle, of the sliding groove is bent. According to the integrated precisely-domesticated poecilobdella manillensis egg cocoon incubation-seedling cultivation linkage system, through the collaborative design of a lifting mechanism and a fixing plate, automatic cleaning and separation of an incubation substrate are achieved, a breeding frame is vertically lifted, meanwhile, a sliding groove is matched with a round rod, lifting motion is converted into horizontal reciprocating motion of the breeding frame in water, and the breeding efficiency is improved. And efficient water flow scouring and disturbance are generated on the soil matrix in the frame, so that the soil is quickly eluted from the egg cocoons and mixed into water under the condition that manual intervention is not needed.

Description

Technical Field

[0001] This invention relates to the field of Hirudo medicinalis farming equipment technology, specifically to an integrated and precise domestication system for Hirudo medicinalis egg cocoon hatching and seedling cultivation. Background Technology

[0002] Under the integrated precision domestication model, the hatching stage of Hirudo nipponia eggs is strictly controlled by environmental factors such as temperature and humidity to ensure healthy embryonic development. Once the larvae emerge from the cocoon, they are immediately transferred to a cultivation unit equipped with a suitable aquatic microenvironment and special starter feed, achieving a seamless transition from hatching to larval feeding and growth, thereby significantly improving the survival rate of juvenile leeches and the uniformity of early growth.

[0003] Patent application CN202222335971.4 discloses a breeding pond for raising *Hirudo medicinalis*, comprising a main body of the pond with a rectangular three-dimensional structure. Water holes are symmetrically arranged on both sides of the main body's width. Protective water tanks are located on both inner sides of the main body's width, and filter screens are fitted inside the protective water tanks. The upper end and one side of the protective water tanks are open. Both ends of the breeding pond for raising *Hirudo medicinalis* have water holes for water inlet and outlet. These water holes are connected to drain pipes and inlet pipes via connecting pipes, allowing for alternating water inlet and outlet at both ends of the pond.

[0004] However, existing leech farming equipment relies heavily on manual operation for substrate cleaning after hatching. This is not only inefficient and labor-intensive, but also prone to causing physical damage to the egg cocoons and larvae during manual cleaning or transfer, which seriously affects hatching and survival rates. Furthermore, it lacks self-cleaning ability, and dirt easily adheres to the inner walls of the farming containers, requiring frequent manual scrubbing, which is both tedious and easily disturbs the larvae.

[0005] In view of this, we propose an integrated and precise domestication system for Hirudo nipponia egg cocoon hatching and seedling cultivation. Summary of the Invention

[0006] The purpose of this invention is to provide an integrated and precise domestication system for hatching and raising seedlings of Hirudo nipponiae eggs and cocoons. Through the coordinated design of the lifting mechanism and the fixed plate, the system achieves automated cleaning and separation of the hatching substrate, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An integrated and precise domestication system for hatching and raising larvae of Hirudo nipponia eggs includes a connecting chamber, a lifting mechanism inside the connecting chamber, and a water supply device. The connecting compartment includes a pair of fixed plates, and the fixed plates have a sliding groove inside that communicates with the top. The sliding groove is bent near the middle. The lifting mechanism includes an electric actuator, a horizontal plate driven by the electric actuator, insert plates sliding at both ends of the horizontal plate, a breeding frame that moves synchronously with the insert plates, and a round rod set on the outside of the breeding frame. This setting features an electric actuator that adjusts the height of the breeding frame by driving a horizontal plate. When the round rod moves along the bend of the slide groove, it drives the breeding frame to move back and forth laterally. The water supply device includes a circular pipe, several nozzles disposed at the bottom of the circular pipe, levers sleeved at both ends of the circular pipe, a transverse frame disposed between two levers on the same side, and a bracket connecting the levers and the transverse frame. When the breeding frame moves back and forth horizontally as described in this setting, the horizontal frame moves synchronously, and the tilt angle of the lever is adjusted by the bracket to drive the nozzle to swing back and forth.

[0008] In the technical solution of the present invention, the connecting chamber further includes a chamber body, a fixed platform disposed at the center of the inner wall of the chamber near the top, a bottom frame disposed at the bottom opening of the chamber body, a water baffle plate sliding inside the bottom frame, a handle disposed on the outer wall of the water baffle plate, two sets of limiting rings disposed on the inner wall of the chamber body, and two water supply pipes disposed on the outer wall of the chamber body.

[0009] In the technical solution of the present invention, both ends of the fixing plate and the fixing platform are fixedly connected to the inner wall of the silo body by bolts, the bottom frame is welded and fixed to the bottom end of the silo body, the longitudinal section of the baffle plate is L-shaped, and the handle is fixedly connected to the plate body on the outside of the baffle plate by screws.

[0010] In the technical solution of the present invention, the limiting ring is snapped and fixed on the inner wall of the chamber, one end of the water supply pipe passes through the chamber wall of the chamber and is snapped and fixed to the inner side of the limiting ring, and the other end of the water supply pipe is connected to the external water supply system through a water pump.

[0011] The above setup, through the coordinated layout of core components such as the fixed plate, bottom frame, and water baffle, jointly achieves the key functions of supporting the entire system, guiding specific movement trajectories, accommodating the incubation environment, and controlling water level and drainage, laying a solid structural foundation for subsequent automated operation.

[0012] In the technical solution of the present invention, the electric actuator is fixedly connected to the top surface of the fixed platform by screws, and the telescopic rod of the electric actuator passes through the fixed platform and is locked with the horizontal plate. The end of the horizontal plate is provided with a slot whose size is adapted to the size of the insert plate.

[0013] In the technical solution of the present invention, a connecting rod is snapped and fixed between the insert plate and the square frame plate at the top of the breeding frame, and the size of the breeding frame is adapted to the size of the bottom frame.

[0014] In the technical solution of the present invention, a square plate is snapped and fixed between the two connecting rods on the same side, and the round rod is fixedly connected to the outer wall of the square plate by screws, with the end of the round rod extending to the outside of the fixed plate.

[0015] The above-mentioned configuration transforms the single vertical lifting motion into a composite motion that also includes horizontal reciprocating lateral movement, thereby driving the breeding frame to complete complex cleaning actions. It is the core actuator for achieving automated cleaning and position adjustment.

[0016] In the technical solution of the present invention, the two ends of the circular tube are rotatably connected to the inner sides of two limiting rings, one end of the circular tube is connected to the water supply pipe, and the nozzle is threadedly connected to the bottom end of the circular tube.

[0017] In the technical solution of the present invention, the top end of the lever is snapped and fixed to the outer wall of the round tube, and a groove is provided inside the lever. The transverse cross section of the transverse frame is U-shaped, and grooves are provided at both the upper and lower ends of the transverse frame. One end of the bracket is welded to the outer wall of the transverse frame, and the other end is rotatably connected to a sliding rod that passes through the groove.

[0018] In the technical solution of the present invention, the outer side of the transverse frame is provided with a fixed frame that is fixedly connected to the inner wall of the chamber by bolts. The longitudinal section of the fixed frame is U-shaped, and the inner walls at the upper and lower ends of the fixed frame are integrally formed with limiting protrusions that are adapted to the size of the groove.

[0019] The above setup utilizes the lifting motion of a round rod to drive a transmission mechanism consisting of a horizontal frame, levers, etc., which is converted into the reciprocating oscillation of the nozzle. This enables automatic and efficient rinsing of the inner wall of the chamber while cleaning the cocoons, thus improving the system's self-maintenance capability and cleaning efficiency.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. This integrated precision domestication system for hatching and raising leeches from egg cocoons to seedlings features a coordinated design of lifting mechanism and fixed plate. This design enables automated cleaning and separation of the hatching substrate. By using the vertical lifting of the breeding frame, the sliding groove and round rod work together to convert the lifting motion into the horizontal reciprocating movement of the breeding frame in the water. This generates efficient water flow to wash and disturb the soil substrate inside the frame, thus quickly washing the soil off the egg cocoons and mixing it into the water without manual intervention. This not only improves cleaning efficiency and reduces labor intensity, but also avoids the physical damage that traditional manual cleaning may cause to the egg cocoons.

[0021] 2. This integrated precision domestication system for hatching leech eggs and cocoons and raising seedlings utilizes the reciprocating motion of the round rod during the cleaning and sewage discharge stage. Through a transmission system composed of a transverse frame, support, and sliding rod, the rod drives the lever to make the round tube equipped with nozzles swing back and forth, increasing the water flow coverage area and effectively rinsing the inner wall of the chamber, thus achieving self-cleaning of the system.

[0022] 3. This integrated and precise domestication system for Hirudo nipponia egg cocoon hatching and seedling cultivation connects the cocoon hatching and seedling cultivation stages. During the cultivation stage, by precisely controlling the water level and the height of the rearing frame, the cocoon breaking environment is set at the water-land interface. Under the dual stimulation of humidity and water, the young leeches break out of the cocoon autonomously and fall into the water. Subsequently, due to their innate tendency to move towards the shore and attach to walls, they will naturally gather in the area near the water surface on the inner wall. This design precisely conforms to the biological characteristics of Hirudo nipponia seedlings, realizing a natural transition from cocoon breaking to habitation, thereby completing the early behavioral domestication of the seedlings and effectively improving their adaptability and survival rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the connecting compartment in this invention; Figure 4 This is a schematic diagram of the structure of the fixing plate in this invention; Figure 5 This is a schematic diagram of the lifting mechanism in this invention; Figure 6 This is a schematic diagram of the water supply device in this invention; Figure 7 This is a partial structural diagram of the water supply device in this invention; Figure 8 This is a schematic diagram of the fixed frame structure in this invention; Explanation of reference numerals in the attached figures: 100. Connecting compartment; 110. Compartment body; 120. Fixing plate; 121. Slide groove; 130. Fixing platform; 140. Base frame; 150. Water baffle; 160. Handle; 170. Limiting ring; 180. Water supply pipe; 200. Lifting mechanism; 210. Electric actuator; 220. Horizontal plate; 230. Insert plate; 240. Connecting rod; 250. Breeding frame; 260. Square plate; 270. Round rod; 300, water supply device; 310, round pipe; 320, nozzle; 330, lever; 331, lever groove; 340, transverse frame; 341, groove; 350, bracket; 360, slide bar; 370, fixing frame; 371, limiting protrusion. Detailed Implementation

[0024] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] Please see Figures 1-4 As shown, this embodiment provides the following technical solution: The integrated precision domestication system for hatching eggs and cocoons of Hirudo nipponia and raising seedlings includes a connecting chamber 100, a lifting mechanism 200 located inside the connecting chamber 100, and a water supply device 300.

[0026] Specifically, the connecting compartment 100 includes a pair of fixed plates 120. The fixed plates 120 have a groove 121 inside that communicates with the top. The groove 121 is bent near the middle.

[0027] Furthermore, the connecting compartment 100 also includes a compartment body 110, a fixed platform 130 located at the center of the inner wall of the compartment body 110 near the top, a bottom frame 140 located at the bottom opening of the compartment body 110, a water baffle 150 sliding inside the bottom frame 140, a handle 160 located on the outer wall of the water baffle 150, two sets of limiting rings 170 located on the inner wall of the compartment body 110, and two water supply pipes 180 located on the outer wall of the compartment body 110.

[0028] Furthermore, both ends of the fixing plate 120 and the fixing platform 130 are fixedly connected to the inner wall of the silo body 110 by bolts, the bottom frame 140 is welded and fixed to the bottom end of the silo body 110, the longitudinal section of the baffle plate 150 is L-shaped, and the handle 160 is fixedly connected to the outer plate of the baffle plate 150 by screws.

[0029] Furthermore, the limiting ring 170 is snapped and fixed to the inner wall of the chamber 110, one end of the water supply pipe 180 passes through the chamber wall of the chamber 110 and is snapped and fixed to the inner side of the limiting ring 170, and the other end of the water supply pipe 180 is connected to the external water supply system through the water pump.

[0030] Furthermore, the chamber 110, in conjunction with the bottom frame 140, ensures the overall structural strength of the connecting chamber 100. The curved groove 121 on the fixed plate 120 near the middle is designed to accommodate the structure in the lifting mechanism 200, allowing its internal structure to reciprocate laterally. The fixed platform 130 provides a fixed platform for the structure in the lifting mechanism 200. The bottom frame 140 adapts to the structure in the lifting mechanism 200, providing an environment for the cultivation of Hirudo nipponia eggs and cocoons. By pulling the handle 160, the baffle 150 is pulled out from the bottom frame 140, allowing water in the connecting chamber 100 to be quickly drained. The limiting ring 170 provides a rotation range for the structure in the water supply device 300. The water supply pipe 180 injects water into the chamber 110. This arrangement, through the coordinated layout of core components such as the fixed plate 120, the bottom frame 140, and the baffle 150, jointly achieves the key functions of supporting the entire system, guiding specific movement trajectories, accommodating the incubation environment, and controlling water level and drainage, laying a solid structural foundation for subsequent automated operations.

[0031] Please see Figure 5 As shown, in this embodiment, the lifting mechanism 200 includes an electric push rod 210, a horizontal plate 220 driven by the electric push rod 210, insert plates 230 sliding at both ends of the horizontal plate 220, a breeding frame 250 that moves synchronously with the insert plates 230, and a round rod 270 disposed on the outside of the breeding frame 250. The electric push rod 210 adjusts the height of the breeding frame 250 by driving the horizontal plate 220. When the round rod 270 moves along the bend of the slide groove 121, it drives the breeding frame 250 to move back and forth horizontally.

[0032] Specifically, the electric actuator 210 is fixedly connected to the top surface of the fixed platform 130 by screws. The telescopic rod of the electric actuator 210 passes through the fixed platform 130 and is snapped into the horizontal plate 220. The end of the horizontal plate 220 is provided with a slot whose size is adapted to the size of the insert plate 230.

[0033] Furthermore, a connecting rod 240 is snapped and fixed between the insert plate 230 and the square frame plate at the top of the breeding frame 250, and the size of the breeding frame 250 is adapted to the size of the bottom frame 140.

[0034] Furthermore, a square plate 260 is snapped and fixed between two connecting rods 240 on the same side, and a round rod 270 is fixedly connected to the outer wall of the square plate 260 by screws, with the end of the round rod 270 extending to the outside of the fixing plate 120.

[0035] Furthermore, the electric actuator 210 drives the horizontal plate 220 to move up and down, while the insertion plate 230 and connecting rod 240 drive the adjustment of the height of the breeding frame 250 inside the connecting chamber 100. The square plate 260 is used to provide a fixed range for the round rod 270, which is used to move within the slide 121, allowing the breeding frame 250 to reciprocate horizontally within the chamber 110. This setting transforms the single vertical lifting motion into a composite motion that also has horizontal reciprocating movement, thereby driving the breeding frame 250 to complete complex cleaning actions. It is the core actuator for realizing automated cleaning and position adjustment.

[0036] Please see Figures 6-8 As shown, in this embodiment, the water supply device 300 includes a circular pipe 310, a plurality of nozzles 320 disposed at the bottom of the circular pipe 310, levers 330 sleeved at both ends of the circular pipe 310, a transverse frame 340 disposed between two levers 330 on the same side, and a bracket 350 connecting the levers 330 and the transverse frame 340. When the breeding frame 250 moves back and forth, the transverse frame 340 moves synchronously. The bracket 350 adjusts the tilt angle of the levers 330, causing the nozzles 320 to swing back and forth.

[0037] Specifically, the two ends of the round tube 310 are rotatably connected to the inner side of the two limiting rings 170, one end of the round tube 310 is connected to the water supply pipe 180, and the nozzle 320 is threadedly connected to the bottom end of the round tube 310.

[0038] Furthermore, the top end of the lever 330 is snapped and fixed to the outer wall of the round tube 310. The lever 330 has a groove 331 inside. The transverse cross section of the transverse frame 340 is U-shaped. Grooves 341 are provided at both the upper and lower ends of the transverse frame 340. One end of the bracket 350 is welded to the outer wall of the transverse frame 340, and the other end is rotatably connected to a slide rod 360 that passes through the groove 331.

[0039] Furthermore, the outer side of the transverse frame 340 is provided with a fixed frame 370 that is fixedly connected to the inner wall of the compartment 110 by bolts. The longitudinal section of the fixed frame 370 is U-shaped, and the inner walls at the upper and lower ends of the fixed frame 370 are integrally formed with limiting protrusions 371 that are adapted to the size of the groove 341.

[0040] Furthermore, as the round rod 270 moves up and down along the slide groove 121, it simultaneously actuates the transverse frame 340, causing it to move within the groove 331 via the slide rod 360 at the end of the bracket 350. This displacement, in turn, drives the nozzle 320 to oscillate back and forth via the lever 330, increasing the coverage of the water flow and thus cleaning the inner wall of the chamber 110. The limiting protrusion 371 on the inner wall of the fixed frame 370 is adapted to match the groove 341 of the transverse frame 340, ensuring the stability of the transverse frame 340 during movement. This design utilizes the lifting motion of the round rod 270 to drive a transmission mechanism consisting of the transverse frame 340, lever 330, etc., which is converted into the reciprocating oscillation of the nozzle 320. This achieves automatic and efficient rinsing of the inner wall of the chamber 110 while cleaning the cocoons, improving the system's self-maintenance capability and cleaning efficiency.

[0041] Finally, it should be noted that the electric actuator 210 involved in this invention is a general standard part or a component known to those skilled in the art. Its structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, the electric actuator 210 is connected to an external power source through wires. The specific connection method should refer to the working principle in this invention. The electrical components are electrically connected in the order of operation. The detailed connection methods are all known technologies in the art.

[0042] When using the integrated precision domestication system for hatching and raising leeches, the first step is to lay a layer of soil substrate in the breeding frame 250, then evenly spread the leech egg cocoons on the substrate surface, and cover them with a thin layer of soil. Next, insert the insert plate 230 into the slot at the end of the horizontal plate 220, and start the electric actuator 210 to drive the horizontal plate 220 to move down, so that the breeding frame 250 is placed inside the bottom frame 140. During the process, water is injected into the round pipe 310 through the water supply pipe 180 by an external water pump, and the nozzle 320 continuously sprays moisture to maintain a suitable humidity inside the breeding frame 250. Once the cocoons have matured, the electric actuator 210 drives the horizontal plate 220 to lift the breeding frame 250 away from the bottom frame 140, while simultaneously increasing the water injection volume to raise the water level in the connecting chamber 100. Subsequently, the electric actuator 210 drives the horizontal plate 220 to move up and down reciprocally, and with the help of the round rod 270 moving in the chute 121, the breeding frame 250 moves horizontally and reciprocally on the water surface, so that the soil substrate in the frame is fully washed out into the water. After completion, the handle 160 is pulled to remove the baffle plate 150 and the sewage is discharged from the connecting chamber 100. During this process, the round rod 270 reciprocates along the slide groove 121, simultaneously actuating the transverse frame 340. The slide rod 360 at the end of the bracket 350 moves within the actuation groove 331, driving the actuation rod 330 to make the nozzle 320 swing back and forth, thereby expanding the water flow coverage area and achieving auxiliary cleaning of the inner wall of the chamber 110. Then, the cleaned baffle plate 150 is reinserted, water is added to the appropriate level and then the water supply is stopped. The electric actuator 210 is controlled to bring the bottom of the breeding frame 250 close to the water surface. At this time, after sensing the external humidity and water stimulation, the larvae in the breeding frame 250 actively break out of the cocoon and fall into the water through the breeding frame 250. Because the seedlings have the habit of moving towards the shore and attaching to the wall, they will gather and attach to the inner wall of the container 110 near the water surface. After a period of cultivation, the operator can transfer the seedlings to a larger breeding pond for further cultivation.

[0043] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the specification and its equivalents.

Claims

1. An integrated and precise domestication system for hatching egg cocoons and raising seedlings of Hirudo nipponia, characterized by: Includes a connecting compartment, a lifting mechanism installed inside the connecting compartment, and a water supply device; The connecting compartment includes a pair of fixed plates, and the fixed plates have a sliding groove inside that communicates with the top. The sliding groove is bent near the middle. The lifting mechanism includes an electric push rod, a horizontal plate driven by the electric push rod, insert plates sliding at both ends of the horizontal plate, a breeding frame that moves synchronously with the insert plates, and a round rod set on the outside of the breeding frame. The electric push rod adjusts the height of the breeding frame by driving the horizontal plate, and when the round rod moves along the bend of the slide groove, it drives the breeding frame to move back and forth horizontally. The water supply device includes a circular pipe, several nozzles disposed at the bottom of the circular pipe, levers sleeved at both ends of the circular pipe, a transverse frame disposed between two levers on the same side, and a bracket connecting the levers and the transverse frame. When the breeding frame moves back and forth, the transverse frame moves synchronously. The bracket adjusts the tilt angle of the levers, causing the nozzles to swing back and forth.

2. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 1, characterized in that: The connecting compartment also includes a compartment body, a fixed platform located at the center of the inner wall of the compartment near the top, a bottom frame located at the bottom opening of the compartment body, a water baffle that slides inside the bottom frame, a handle located on the outer wall of the water baffle, two sets of limiting rings located on the inner wall of the compartment body, and two water supply pipes located on the outer wall of the compartment body.

3. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 2, characterized in that: Both ends of the fixed plate and the fixed platform are fixedly connected to the inner wall of the silo body by bolts. The bottom frame is welded and fixed to the bottom of the silo body. The longitudinal section of the baffle plate is L-shaped. The handle is fixedly connected to the outer plate of the baffle plate by screws.

4. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 3, characterized in that: The limiting ring is snapped and fixed to the inner wall of the chamber. One end of the water supply pipe passes through the chamber wall and is snapped and fixed to the inner side of the limiting ring. The other end of the water supply pipe is connected to the external water supply system via a water pump.

5. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 4, characterized in that: The electric actuator is fixedly connected to the top surface of the fixed platform by screws. The telescopic rod of the electric actuator passes through the fixed platform and is locked in place with the horizontal plate. The end of the horizontal plate has a slot with a size that matches the size of the insert plate.

6. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 5, characterized in that: A connecting rod is snapped between the insert plate and the square frame plate at the top of the breeding frame, and the size of the breeding frame is adapted to the size of the bottom frame.

7. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 6, characterized in that: A square plate is snapped between the two connecting rods on the same side, and the round rod is fixed to the outer wall of the square plate by screws, with the end of the round rod extending to the outside of the fixed plate.

8. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 7, characterized in that: The two ends of the circular tube are rotatably connected to the inner sides of two limiting rings, one end of the circular tube is connected to the water supply pipe, and the nozzle is threadedly connected to the bottom end of the circular tube.

9. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation as described in claim 8, characterized in that: The top end of the lever is snapped and fixed to the outer wall of the round tube. The lever has a groove inside. The transverse cross-section of the transverse frame is U-shaped. The upper and lower ends of the transverse frame have grooves. One end of the bracket is welded to the outer wall of the transverse frame, and the other end is rotatably connected to a sliding rod that passes through the groove.

10. The integrated and precise domestication system for Hirudo nipponia egg cocoon hatching-seedling cultivation according to claim 9, characterized in that: The outer side of the transverse frame is provided with a fixed frame that is fixedly connected to the inner wall of the chamber by bolts. The longitudinal cross section of the fixed frame is U-shaped, and the inner walls at the upper and lower ends of the fixed frame are integrally formed with limiting protrusions that are adapted to the size of the groove.

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