Leech hatching and breeding device and method

Abstract

The invention relates to the technical field of leech incubation, and discloses a leech incubation and cultivation device and method.The leech incubation and cultivation device comprises an incubation box, the incubation box and a cultivation pipe are ingeniously combined, and a closed and controllable ecological environment is created; the whole life cycle of the leeches from eggs to adults can be carried out under the optimal condition, the integrated design greatly improves the hatching efficiency, meanwhile, the survival rate of the leeches in all growth stages is ensured, compared with a traditional breeding method, the device can more effectively promote growth and development of the leeches, and therefore the breeding cycle is shortened, and the breeding cost is reduced. The leech breeding device has the advantages that the leech breeding device is simple in structure and convenient to use, economic benefits are improved, independent growth units are provided for each leech through the design of the breeding pipes, a farmer can conveniently and carefully observe and record the growth condition of each leech, direct contact among individuals is effectively isolated, and the risk of disease transmission and cross infection is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of leech hatching, in particular to a leech hatching and cultivating device and method. Background Art

[0002] Leeches, commonly known as leeches, are annelids that live in freshwater environments. They have a long history of application in traditional Chinese medicine, mainly used to treat diseases such as thrombosis and stroke;

[0003] In the existing leech breeding technology, there are the following problems:

[0004] 1. The breeding environment is difficult to control: Traditional leech breeding is usually carried out in an open or semi-open environment, which makes it difficult to accurately control key growth factors such as temperature, humidity, light and water quality, thus affecting the growth and reproduction of leeches;

[0005] 2. Low hatching rate: Under natural conditions, the hatching rate of leech eggs is affected by many factors, such as water temperature, dissolved oxygen, light, etc., and traditional breeding methods often cannot provide a stable hatching environment;

[0006] 3. Low breeding efficiency: Traditional breeding methods require a lot of manual operations, such as manual water changes and cleaning of breeding ponds, which is not only inefficient but also easy to cause damage to leeches;

[0007] 4. Difficulty in disease prevention and control: Due to the uncontrollable nature of the breeding environment, leeches are susceptible to diseases and pests, while traditional breeding methods lack effective disease prevention measures. Summary of the invention

[0008] 1. Technical issues to be resolved

[0009] In view of the deficiencies in the prior art, the present invention provides a leech hatching and cultivation device and method. The cultivation device provided by the present invention creates a closed and controllable ecological environment by cleverly combining an incubator box with a cultivation tube, so that the entire life cycle of the leech from egg to adult can be carried out under optimal conditions. This integrated design greatly improves the hatching efficiency and ensures the survival rate of the leech at each growth stage. Compared with the traditional breeding method, the device can more effectively promote the growth and development of the leech, thereby shortening the breeding cycle and improving the economic benefits. The design of the cultivation tube provides an independent growth unit for each leech, which not only facilitates the breeder to carefully observe and record the growth status of each leech, but also effectively isolates the direct contact between individuals, thereby reducing the risk of disease transmission and cross infection.

[0010] (II) Technical solution

[0011] In order to solve the above technical problems, the present invention provides the following technical solutions: a leech hatching and cultivating device, comprising an incubator, a water pump is fixedly connected to the lower left front side of the incubator, an inlet pipe is fixedly connected to the input end of the water pump, an outlet pipe is fixedly connected to the output end of the water pump, a water hole is opened on the outer side of the outlet pipe, a drain pipe is fixedly connected to the middle of the left rear side of the incubator, a one-way valve is fixedly connected to the end of the drain pipe away from the incubator, a mounting plate is fixedly connected to the upper part of the incubator, an internal thread structure is arranged inside the mounting plate, and a cultivation tube is threadedly connected to the outer side of the internal thread structure;

[0012] The upper surface of the cultivation tube is provided with an external thread structure, the surface of the cultivation tube is provided with a through hole, the bottom of the cultivation tube is fixedly connected to a base, and the lower inner side of the base is fixedly connected to a metal filter screen;

[0013] The front and rear end surfaces of the incubator are fixedly connected to a casing, the front side of the casing of the front end surface of the incubator is fixedly connected to a reduction motor, the output end of the reduction motor is fixedly connected to a disc, the inside of the casing of the front and rear end surfaces of the incubator are both rotatably connected to the front and rear end surfaces of the disc, the top of the disc is fixedly connected to a support rod, the end of the support rod away from the disc is fixedly connected to a lighting board, the top of the lighting board is fixedly connected to a battery compartment, the middle of the bottom of the lighting board is fixedly connected to an LED light board, and the LED light board is electrically connected to the battery compartment;

[0014] A frame plate is fixedly connected to the bottom end of the incubator, a cotton net is fixedly connected to the middle of the inner side of the frame plate, and an activated carbon layer is fixedly connected to the middle of the inner side of the cotton net.

[0015] Preferably, a plurality of holes are provided in the middle of the mounting plate, and the internal thread structure is located on the inner wall of the hole in the middle of the mounting plate. The diameter of the hole in the middle of the mounting plate matches the diameter of the middle cross-section of the cultivation tube, and the external thread structure on the upper surface of the cultivation tube is spirally connected with the internal thread structure on the inner wall of the hole. The incubator and the cultivation tube are cleverly combined to create a closed and controllable ecological environment, so that the entire life cycle of the leech from egg to adult can be carried out under optimal conditions. This integrated design greatly improves the hatching efficiency and ensures the survival rate of the leech at each growth stage.

[0016] Preferably, the surface of the culture tube has a plurality of through holes, and the through holes are arranged in a circular shape on the surface of the culture tube. The diameters of the plurality of through holes arranged on the surface of the culture tube are all 0.2 to 0.8 mm, so that water entering the incubator can enter the culture tube through the through holes, so that the leeches in the culture tube are also in the water.

[0017] Preferably, the metal filter at the top of the lower part of the cultivation tube is circular as a whole, and the mesh size of the metal filter is 38 to 50 meshes. The metal filter is made of stainless steel, and mud, sand and gravel can be placed on top of the metal filter to provide a wild-like habitat for leeches.

[0018] Preferably, the inner diameter of the cultivation tube is 7 to 9 cm, and the inner height of the cultivation tube is 15 to 18 cm. The distance between the bottom of the mounting plate and the water outlet pipe is 8 cm, so that 3 to 5 leeches can be placed in one cultivation tube, thereby increasing the efficiency of operations such as feeding, cleaning and disease prevention.

[0019] Preferably, the water outlet pipe is arranged at a position between the mounting plate and the frame plate, the water outlet pipe has branches extending outward, and the branches extending from the water outlet pipe are all in a vertical state with the cultivation tube inserted into the mounting plate, and the water holes arranged on the surface of the water outlet pipe are aligned with the cultivation tube inserted into the mounting plate, which can not only discharge water with low oxygen content and introduce fresh water with rich oxygen, but also simulate the speed of wild water flow during the growth of leeches, provide leeches with a habitat similar to that of the wild, and be conducive to their healthy growth.

[0020] Preferably, the outlet pipe inside the incubator is 2 cm lower than the height of the drain pipe, and the one-way valve at the top of the drain pipe is manually controlled, so that the new water discharged through the outlet pipe can discharge the old water with low oxygen content in the incubator from the drain pipe.

[0021] Preferably, the edge length and width of the frame plate are consistent with the length and width of the inner edge of the incubator, the number of cotton mesh is two layers, and the cotton mesh is arranged at the upper and lower end surfaces of the activated carbon layer, the thickness of the activated carbon layer is 1 cm, and the mesh number of activated carbon particles inside the activated carbon layer is 4 to 8 meshes, which are used to collect and filter the metabolites of leeches, thereby improving the cleanliness of the water in the incubator to a certain extent.

[0022] A leech hatching and cultivation method, characterized in that it comprises the following steps:

[0023] S1. Spray a layer of hydrophobic coating on the inner wall of the culture tube to prevent leeches from climbing and escaping from the culture tube.

[0024] S2. Thread the internal thread structure on the inner wall of the hole opened on the mounting plate inside the incubator box and the cultivation tube with the external thread structure together, and rotate clockwise to ensure that each cultivation tube is firmly installed in the incubator box.

[0025] S3. Place 3 to 5 leech eggs in each culture tube to provide an independent space for the hatching of leeches.

[0026] S4. Through holes are set at the edge of the culture tube to allow water and oxygen to enter. At the same time, a metal filter is set at the bottom of the culture tube and filled with mud, sand and gravel to simulate the natural growth environment of leeches.

[0027] S5. Start the water pump to allow new water with oxygen to flow into the incubator and the culture tube through the outlet pipe branch. When the leeches are in the egg stage, the water height in the culture tube should be enough to cover the eggs, about 1 / 4 to 1 / 3 of the height of the culture tube, that is, when the internal height of the culture tube is 15 to 18 cm, the water height in the culture tube is about 4.5 to 6 cm; when the leeches are in the larval stage, they need more oxygen and a certain amount of water flow to promote their growth. The water height in the culture tube is set at 1 / 2 to 2 / 3 of the height of the culture tube, that is, about 7.5 to 12 cm.

[0028] S6. After the water enters the incubator and the culture tube through the water pump and the outlet pipe, the frequency of changing the water during the leech egg and larval stages is 1 to 3 days. When changing the water, open the one-way valve to lower the water level in the incubator to the height of the drain pipe. Simultaneously turn on the water pump to mix the new water with oxygen and the old water with low oxygen content. After the water level rises to the height of the drain pipe, it is discharged from the drain pipe to simulate the speed and rhythm of water flow in the wild. The duration is 30 to 45 minutes.

[0029] S7. When light is needed, start the reduction motor to make the LED light panel at the bottom of the light panel illuminate the incubator vertically downward to simulate the natural light effect; when light is not needed, the light panel is rotated 90° toward the front end of the incubator by the reduction motor to turn off the light.

[0030] S8: When the leeches change from the egg stage to the adult stage, the culture tube can be rotated counterclockwise to remove the culture tube from the inside of the mounting plate and transferred to outdoor breeding.

[0031] Compared with the prior art, the present invention provides a leech hatching and cultivation device and method, which has the following beneficial effects:

[0032] 1. Through the setting of the incubator and the cultivation tube, the incubator and the cultivation tube are cleverly combined to create a closed and controllable ecological environment, so that the entire life cycle of the leech from egg to adult can be carried out under the best conditions. This integrated design greatly improves the hatching efficiency and ensures the survival rate of the leech at each growth stage. Compared with the traditional breeding method, the device can more effectively promote the growth and development of leeches, thereby shortening the breeding cycle and improving economic benefits. The design of the cultivation tube provides an independent growth unit for each leech, which not only facilitates the breeder to observe and record the growth status of each leech in detail, but also effectively isolates the direct contact between individuals, reducing the risk of disease transmission and cross infection. In addition, the independent space design also makes it more convenient for the breeder to carry out daily management, such as feeding, cleaning and disease prevention and control operations can be carried out more accurately and efficiently.

[0033] 2. Through the setting of the water outlet pipe and the metal filter at the bottom of the cultivation tube, mud, sand and gravel can be placed above the metal filter to provide a wild-like habitat for leeches. At the same time, the water pump controls the speed of the water flow, and there are branches in the water outlet pipe connected to the water pump. Each branch is aligned with the cultivation tube inserted into the mounting plate, which can not only discharge the water with low oxygen content and introduce fresh oxygen-rich water, but also simulate the speed of wild water flow during the growth of leeches, provide a wild-like habitat for leeches, and is conducive to their healthy growth.

[0034] 3. Through the setting of the reduction motor and the light board, the light cycle and intensity in nature can be simulated to provide suitable light conditions for leeches. The drive of the reduction motor enables the light board to accurately control the irradiation angle and time, meeting the different light requirements of leeches at different growth stages. This light simulation not only helps the normal physiological activities of leeches, but also promotes their healthy growth and improves the quality of breeding. In addition, without using the light board, the light board can be rotated 90° from top to right through the reduction motor, avoiding unnecessary energy waste and space occupancy. This design not only reduces the breeding cost, but also improves the use efficiency and flexibility of the equipment, making it more adaptable to different breeding needs and environmental conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the structure of the present invention in which the whole is flipped 180 degrees horizontally and the reduction motor is started;

[0037] Figure 3 This is a schematic diagram of the overall structure of the cultivation tube of the present invention;

[0038] Figure 4 This is a schematic diagram of the longitudinal cross-sectional structure of the culture tube of the present invention;

[0039] Figure 5 This is a schematic diagram of the overall structure of the mounting plate of the present invention;

[0040] Figure 6 This is a schematic diagram of the cross-sectional structure of the top of the incubator box of the present invention;

[0041] Figure 7 This is a schematic diagram of the cross-sectional structure of the water outlet pipe of the present invention;

[0042] Figure 8 It is a schematic diagram of the longitudinal cross-sectional structure of the frame plate of the present invention;

[0043] Fig. 9 It is a longitudinal section and exploded structural schematic diagram of the casing of the present invention.

[0044] Among them: 1. Incubator; 101. Mounting plate; 102. Water pump; 103. Water inlet pipe; 104. One-way valve; 105. Drain pipe; 106. Internal thread structure; 107. Water outlet pipe; 108. Water hole; 2. Cultivation tube; 201. Through hole; 202. External thread structure; 203. Base; 204. Metal filter; 3. Casing; 301. Reducer motor; 302. Disc; 303. Support rod; 304. Lighting board; 305. Battery compartment; 306. LED light board; 4. Frame board; 401. Cotton net; 402. Activated carbon layer. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Embodiment 1:

[0047] See also Figure 1-Figure 9A leech hatching and cultivating device comprises an incubator 1, a water pump 102 is fixed by bolts at the lower left front side of the incubator 1, an input end of the water pump 102 is connected to a water inlet pipe 103 through a flange, an output end of the water pump 102 is connected to a water outlet pipe 107 through a flange, a water hole 108 is arranged on the outer side of the water outlet pipe 107, a drain pipe 105 penetrating the incubator 1 is connected to the middle of the left rear side of the incubator 1 through a flange, a one-way valve 104 is arranged at one end of the drain pipe 105 away from the incubator 1, a mounting plate 101 is arranged on the upper part of the incubator 1, an internal thread structure 106 is arranged inside the mounting plate 101, a cultivation tube 2 penetrates and spirals on the outer side of the internal thread structure 106, an external thread structure 202 is arranged on the upper surface of the cultivation tube 2, a through hole 201 is arranged on the surface of the cultivation tube 2, a base 203 is welded at the bottom of the cultivation tube 2, and a metal filter is welded at the lower inner side of the base 203 Net 204, the front and rear end surfaces of the incubator 1 are fixed to the casing 3 by bolts, the front side of the casing 3 at the front end surface of the incubator 1 is fixed to the reduction motor 301 by bolts, the output shaft of the output end of the reduction motor 301 is welded to the middle of the inside of the disk 302, the inside of the casing 3 at the front and rear end surfaces of the incubator 1 are connected to the front and rear end surfaces of the disk 302 through bearings, the support rod 303 is welded to the top of the disk 302, the end of the support rod 303 away from the disk 302 is welded to the lighting board 304, the top of the lighting board 304 is fixed to the battery compartment 305 by bolts, the middle of the bottom of the lighting board 304 is fixed to the LED light board 306, the LED light board 306 is electrically connected to the battery compartment 305, a detachable frame plate 4 is arranged at the bottom end of the incubator 1, a cotton net 401 is arranged in the middle of the inner side of the frame plate 4, and an activated carbon layer 402 is arranged in the middle of the inner side of the cotton net 401.

[0048] like Figure 1 , Figure 2 as well as Figure 5 As shown, a plurality of holes are provided in the middle of the mounting plate 101, and the internal thread structure 106 is located on the inner wall of the hole in the middle of the mounting plate 101. The diameter of the hole in the middle of the mounting plate 101 matches the diameter of the middle cross-section of the cultivation tube 2, and the external thread structure 202 on the upper surface of the cultivation tube 2 is spirally connected with the internal thread structure 106 on the inner wall of the hole. The incubator 1 and the cultivation tube 2 are cleverly combined to create a closed and controllable ecological environment, so that the entire life cycle of the leech from egg to adult can be carried out under the best conditions. This integrated design greatly improves the hatching efficiency and ensures the survival rate of the leech at each growth stage.

[0049] like Figure 3 As shown, there are a number of through holes 201 opened on the surface of the culture tube 2, and the through holes 201 are opened in a circular shape on the surface of the culture tube 2. The diameters of the through holes 201 set on the surface of the culture tube 2 are all 0.2 to 0.8 mm, allowing water entering the incubator 1 to enter the culture tube 2 through the through holes 201, so that the leeches in the culture tube 2 are also in the water.

[0050] like Figure 4 As shown, the metal filter 204 at the top of the lower part of the cultivation tube 2 is circular in shape as a whole, and the mesh size of the metal filter 204 is 38 to 50 meshes. The metal filter 204 is made of stainless steel, and mud, sand, and gravel can be placed on the top of the metal filter 204 to provide a wild-like habitat for leeches.

[0051] like Figure 3 and Figure 4 As shown, the inner diameter of the culture tube 2 is 7 to 9 cm, and the inner height of the culture tube 2 is 15 to 18 cm. The distance between the bottom of the mounting plate 101 and the outlet pipe 107 is 8 cm. 3 to 5 leeches can be placed in one culture tube 2, thereby increasing the efficiency of operations such as feeding, cleaning and disease prevention.

[0052] like Figure 6 and Figure 7 As shown, the water outlet pipe 107 is arranged at a position between the mounting plate 101 and the frame plate 4. The water outlet pipe 107 has branches extending outward, and the branches extending from the water outlet pipe 107 are in a vertical state with the cultivation tube 2 inserted into the mounting plate 101. The water holes 108 arranged on the surface of the water outlet pipe 107 are aligned with the cultivation tube 2 inserted into the mounting plate 101. It can not only discharge water with low oxygen content and introduce fresh water with rich oxygen, but also simulate the speed of wild water flow during the growth of leeches, provide leeches with a habitat similar to that of the wild, and is conducive to their healthy growth.

[0053] like Figure 2 As shown, the outlet pipe 107 inside the incubator 1 is 2 cm lower than the height of the drain pipe 105, and the one-way valve 104 at the top of the drain pipe 105 is manually controlled, so that the new water discharged from the outlet pipe 107 can discharge the old water with low oxygen content in the incubator 1 from the drain pipe 105.

[0054] like Figure 6 and Figure 8 As shown, the edge length and width of the frame plate 4 are consistent with the length and width of the inner edge of the incubator 1, the number of cotton mesh 401 is two layers, and the cotton mesh 401 is arranged at the upper and lower end surfaces of the activated carbon layer 402, the thickness of the activated carbon layer 402 is 1 cm, and the mesh number of the activated carbon particles inside the activated carbon layer 402 is 4 to 8 meshes, which are used to collect and filter the metabolites of leeches, thereby improving the cleanliness of the water in the incubator 1 to a certain extent.

[0055] It should be noted that the motor of the present application structure drives the disc 302 to rotate forward and reverse, the water pump 102 to fill the water outlet pipe 107 with water, and the battery compartment 305 to power the LED light panel 306, etc., which are existing well-known technologies and will not be elaborated here.

[0056] like Figure 1-Figure 9As shown, a leech hatching and cultivation method is characterized by comprising the following steps:

[0057] Before use: spray a hydrophobic coating on the inner wall of the culture tube 2 to prevent the leeches from climbing the inner wall of the culture tube 2 and then put mud, sand and gravel into the culture tube 2. The mud, sand and gravel are blocked by the metal filter 204 at the bottom base 203 of the culture tube 2, so that they can only sink to the bottom of the culture tube 2 and cannot enter the incubator 1.

[0058] When using: The first step is to insert the culture tube 2 from top to bottom into the mounting plate 101 above the incubator 1. When the bottom of the external thread structure 202 on the surface of the culture tube 2 contacts the internal thread structure 106 on the inner wall of the hole inside the mounting plate 101, rotate clockwise to fix the culture tube 2 inside the mounting plate 101. Rotate clockwise 4 to 5 times.

[0059] In the second step, 3 to 5 leech eggs are placed in each culture tube 2 to provide an independent space for the hatching of the leeches. The leech eggs sink to the bottom of the silt and gravel in the culture tube 2.

[0060] The third step is to start the water pump 102, so that new water with oxygen enters the water pump 102 through the water inlet pipe 103, and the water is compressed and flows into the incubator 1 and the culture tube 2 through the outlet pipe 107 branch, and the water is discharged through the water hole 108 of the outlet pipe 107. When the leech is in the egg stage, the water height in the culture tube 2 should be enough to cover the eggs, which is about 1 / 4 to 1 / 3 of the height of the culture tube 2, that is, when the internal height of the culture tube 2 is 15 to 18 cm, the water height in the culture tube 2 is about 4.5 to 6 cm; when the leech is in the larval stage, it needs more oxygen and a certain amount of water flow to promote its growth. The water height in the culture tube 2 is set at 1 / 2 to 2 / 3 of the height of the culture tube 2, that is, about 7.5 to 12 cm, and two layers of cotton nets 401 are arranged on the inner side of the frame plate 4 at the lower part of the incubator 1, and an activated carbon layer 402 is arranged between the cotton nets 401 to collect and filter the metabolites of the leech, thereby improving the cleanliness of the water in the incubator 1 to a certain extent.

[0061] The fourth step is to start the reduction motor 301 fixed by bolts on the front side of the casing 3 on the front face of the incubator 1. The reduction motor 301 drives the disk 302 at the output end to rotate from right to upward, and the support rod 303 fixed on the top of the disk 302 drives the illumination board 304 to rotate 90° upward from the right end face of the incubator 1. At the same time, the disk 302 in the casing 3 on the rear face of the incubator 1 rotates synchronously driven by the support rod 303 in the middle of the rear bottom of the illumination board 304. After the illumination board 304 is at the top of the incubator 1, the operator manually turns on the LED light board 306 at the bottom of the illumination board 304. The LED light board 306 is powered by the battery compartment 305 on the top of the illumination board 304, which can simulate the light cycle and intensity in nature and provide suitable light conditions for leeches.

[0062] After use: After the water enters the incubator 1 and the culture tube 2 through the water pump 102 and the outlet pipe 107, the frequency of changing the water during the leech egg stage and larval stage is 1 to 3 days. When changing the water, open the one-way valve 104 to lower the water level in the incubator 1 to the height of the drain pipe 105, and simultaneously open the water pump 102 to mix the new water with oxygen and the old water with low oxygen content. After the water level rises to the height of the drain pipe 105, it is discharged from the drain pipe 105 to simulate the speed and rhythm of the water flow in the wild. The duration is 30 to 45 minutes. When the leech changes from the egg stage to the adult stage, the culture tube 2 can be rotated counterclockwise to remove the culture tube 2 from the inside of the mounting plate 101 and transfer it to outdoor breeding.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leech hatching and cultivation device, comprising an incubator (1), characterized in that: A water pump (102) is fixedly connected to the lower left front side of the incubator (1); an input end of the water pump (102) is fixedly connected to a water inlet pipe (103); an output end of the water pump (102) is fixedly connected to a water outlet pipe (107); a water hole (108) is provided on the outer side of the water outlet pipe (107); a drain pipe (105) is fixedly connected to the middle of the left rear side of the incubator (1); an end of the drain pipe (105) away from the incubator (1) is fixedly connected to a one-way valve (104); a mounting plate (101) is fixedly connected to the upper part of the incubator (1); an internal thread structure (106) is provided inside the mounting plate (101); a culture tube (2) is threadedly connected to the outer side of the internal thread structure (106); The upper surface of the cultivation tube (2) is provided with an external thread structure (202), the surface of the cultivation tube (2) is provided with a through hole (201), the bottom of the cultivation tube (2) is fixedly connected to a base (203), and the inner lower side of the base (203) is fixedly connected to a metal filter (204); The front and rear end surfaces of the incubator (1) are fixedly connected to a housing (3); the front side of the housing (3) at the front end surface of the incubator (1) is fixedly connected to a reduction motor (301); the output end of the reduction motor (301) is fixedly connected to a disk (302); the interior of the housing (3) at the front and rear end surfaces of the incubator (1) are both rotatably connected to the front and rear end surfaces of the disk (302); the top of the disk (302) is fixedly connected to a support rod (303); one end of the support rod (303) away from the disk (302) is fixedly connected to a lighting board (304); the top of the lighting board (304) is fixedly connected to a battery compartment (305); the middle of the bottom of the lighting board (304) is fixedly connected to an LED light board (306); the LED light board (306) is electrically connected to the battery compartment (305); The bottom end of the incubator (1) is fixedly connected to a frame plate (4), the middle of the inner side of the frame plate (4) is fixedly connected to a cotton net (401), and the middle of the inner side of the cotton net (401) is fixedly connected to an activated carbon layer (402).

2. A leech hatching and cultivating device according to claim 1, characterized in that: A plurality of holes are provided in the middle of the mounting plate (101), and the internal thread structure (106) is located on the inner wall of the hole in the middle of the mounting plate (101). The diameter of the hole in the middle of the mounting plate (101) matches the diameter of the middle cross-section of the cultivation tube (2), and the external thread structure (202) on the upper surface of the cultivation tube (2) is spirally connected with the internal thread structure (106) on the inner wall of the hole.

3. A leech hatching and cultivating device according to claim 1, characterized in that: The number of through holes (201) provided on the surface of the cultivation tube (2) is several, and the through holes (201) are provided on the surface of the cultivation tube (2) in a circumferential shape, and the diameters of the several through holes (201) provided on the surface of the cultivation tube (2) are all 0.2 to 0.8 mm.

4. A leech hatching and cultivating device according to claim 1, characterized in that: The metal filter screen (204) at the top of the lower part of the culture tube (2) is circular in shape as a whole, and the mesh size of the metal filter screen (204) is 38 to 50 meshes. The metal filter screen (204) is made of stainless steel.

5. The leech hatching and cultivating device according to claim 1, characterized in that: The inner diameter of the cultivation tube (2) is 7 to 9 cm, and the inner height of the cultivation tube (2) is 15 to 18 cm. The distance between the bottom of the mounting plate (101) and the water outlet pipe (107) is 8 cm.

6. The leech hatching and cultivating device according to claim 1, characterized in that: The water outlet pipe (107) is arranged at a position between the mounting plate (101) and the frame plate (4); the water outlet pipe (107) has branches extending outward, and the branches extending from the water outlet pipe (107) are all in a vertical state with the cultivation tube (2) inserted into the mounting plate (101); the water hole (108) arranged on the surface of the water outlet pipe (107) is aligned with the cultivation tube (2) inserted into the mounting plate (101).

7. The leech hatching and cultivating device according to claim 1, characterized in that: The water outlet pipe (107) inside the incubator (1) is 2 cm lower than the height of the drain pipe (105), and the one-way valve (104) at the top of the drain pipe (105) is controlled manually.

8. The leech hatching and cultivating device according to claim 1, characterized in that: The edge length and width of the frame plate (4) are consistent with the length and width of the inner edge of the incubator (1); the number of the cotton mesh (401) is two layers, and the cotton mesh (401) is arranged at the upper and lower end surfaces of the activated carbon layer (402); the thickness of the activated carbon layer (402) is 1 cm, and the mesh size of the activated carbon particles inside the activated carbon layer (402) is 4 to 8 meshes.

9. A method for hatching and cultivating leeches based on the device according to any one of claims 1 to 8, characterized in that: The steps include: S1, spraying a layer of hydrophobic coating for preventing leeches from climbing on the inner wall of the culture tube (2), so as to prevent the leeches from escaping from the culture tube (2); S2, threadingly connecting the internal thread structure (106) on the inner wall of the hole opened on the mounting plate (101) inside the incubator (1) and the culture tube (2) with the external thread structure (202), and rotating clockwise to ensure that each culture tube (2) is firmly installed in the incubator (1); S3, placing 3 to 5 leech eggs in each culture tube (2) to provide an independent space for the hatching of the leeches; S4, a through hole (201) is provided at the edge of the culture tube (2) to allow water and oxygen to enter, and a metal filter (204) is provided at the bottom of the culture tube (2) and filled with mud, sand and gravel to simulate the natural growth environment of leeches; S5, start the water pump (102) to allow new water with oxygen to flow into the incubator (1) and the culture tube (2) through the outlet pipe (107) branch. When the leech is in the egg stage, the water height in the culture tube (2) should be sufficient to cover the eggs, which is about 1 / 4 to 1 / 3 of the height of the culture tube (2), that is, when the internal height of the culture tube (2) is 15 to 18 cm, the water height in the culture tube (2) is about 4.5 to 6 cm; when the leech is in the larval stage, it needs more oxygen and a certain amount of water flow to promote its growth. The water height in the culture tube (2) is set to 1 / 2 to 2 / 3 of the height of the culture tube (2), that is, about 7.5 to 12 cm; S6, after the water enters the incubator (1) and the culture tube (2) through the water pump (102) and the outlet pipe (107), the frequency of changing the water during the leech egg stage and the larval stage is 1 to 3 days. When changing the water, the one-way valve (104) is opened to lower the water level in the incubator (1) to the height of the drain pipe (105), and the water pump (102) is simultaneously turned on to mix the new water with oxygen and the old water with low oxygen content. After the water level rises to the height of the drain pipe (105), it is discharged from the drain pipe (105), simulating the speed and rhythm of the water flow in the wild, and the duration is 30 to 45 minutes; S7, when light is needed, the reduction motor (301) is started, so that the LED light board (306) at the bottom of the light board (304) vertically and downwardly illuminates the incubator (1), simulating the effect of natural light; when light is not needed, the reduction motor (301) is driven to rotate the light board (304) 90 degrees toward the front end of the incubator (1), and turn off the light; S8: When the leech changes from the egg stage to the adult stage, the culture tube (2) can be rotated counterclockwise to remove the culture tube (2) from the inside of the mounting plate (101) and transfer it to an outdoor place for breeding.

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