An aquatic leech breeding pond water inlet and outlet system and a method for using the same

Abstract

This invention belongs to the technical field of leech farming equipment, specifically a leech farming pond inlet and outlet system and its usage method, including a farming pond body, an inlet pipe, and an outlet pipe; it also includes a diversion mechanism, which is installed at the outlet pipe opening and is used to divert solid debris, leeches, and pond water. By setting up the diversion mechanism and utilizing a diversion screen, this invention diverts the water to be discharged and circulated, allowing a small portion of the water and most of the solid impurities and leeches to be carried by the water hopper and poured into the buffer hopper, while most of the water and a small portion of the impurities enter the water purification equipment through the outlet pipe. Therefore, during the dynamic adjustment of the water, on the one hand, the probability of leeches escaping is reduced by filtering the discharged water; on the other hand, the probability of the drainage channel being blocked is effectively reduced by transferring and converging the filtered impurities and leeches.

Description

Technical Field

[0001] This invention belongs to the technical field of leech farming equipment, specifically a leech farming pond inlet and drainage system and its usage method. Background Technology

[0002] Leeches belong to the phylum Annelida, class Hirudinea, and family Hirudinidae, and have high medicinal value. In traditional medicine, leeches are used to treat various diseases, such as thrombosis and hypertension. With increasing market demand, leech farming has developed rapidly.

[0003] In leech farming, given the high sensitivity of leeches to water quality conditions throughout their life cycle, specially designed breeding ponds are typically used to enhance environmental control and create a suitable living environment. During the breeding period, automated water inlet and outlet systems are employed to monitor and adjust pond conditions, thereby achieving precise control over key parameters such as water temperature, dissolved oxygen, and pH. This automated system not only improves breeding efficiency but also reduces the tediousness of manual operation and lowers labor intensity. Furthermore, the automated water inlet and outlet systems allow for continuous monitoring and timely adjustment of water quality within the breeding ponds, ensuring that leeches reproduce in an optimal growth environment, thus increasing the success rate and yield. However, during the implementation of automated water control in the breeding ponds, leeches, due to their significant deformability, often manage to burrow into the drainage system. When the drainage system is activated, this can easily cause blockages and may lead to leech mortality and reduced yield.

[0004] A related technology discloses a leech breeding pond inlet and outlet system and its usage method, application number CN2022107886107. This solution uses a screen to intercept leeches on the drain pipe, thereby preventing leeches from escaping through the drainage channel. However, in practical application, it has been found that, on the one hand, when the mesh size is too large, the interception rate of the screen for deformable leeches decreases, while when the mesh size is too small, the screen's interception effect on excrement and impurities in the water is enhanced, which can easily lead to screen blockage. On the other hand, when the mesh size is too dense, impurities and leech excrement cannot be discharged with the water, which has a certain negative impact on the purification and regulation of the breeding pond water.

[0005] In view of this, the present invention proposes a water inlet and drainage system for leech breeding ponds and its usage method to solve the above-mentioned technical problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a water inlet and drainage system for leech farming ponds and its usage method.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a leech breeding pond water inlet and outlet system of the present invention, comprising a breeding pond body, an inlet pipe and an outlet pipe;

[0008] Both the inlet pipe and the outlet pipe are installed in the aquaculture pond. The inlet pipe is located above the water surface in the aquaculture pond and is connected to an inlet water detection device. The outlet pipe is located at the bottom of the aquaculture pond and is connected to a water purification device.

[0009] It also includes a diversion mechanism, which is installed at the drain pipe opening and is used to divert solid debris, leeches and pool water;

[0010] The diversion mechanism includes a diversion screen, mounting rollers, a connecting frame, and a buffer hopper;

[0011] The aquaculture pond is provided with a drainage trough, and the drainage pipe is installed at the bottom of the drainage trough. A diversion screen is rotatably installed in the aquaculture pond. The diversion screen is a circular annular screen plate that extends into the drainage trough and blocks the opening of the drainage pipe.

[0012] A water bucket is fixedly installed on the inner side of the diversion screen, and the opening of the water bucket faces the direction of movement of the diversion screen.

[0013] An installation roller is installed on the aquaculture pond, and a connecting frame is fixedly installed on the diversion screen. The diversion screen is rotatably mounted on the installation roller via the connecting frame.

[0014] The aquaculture pond is detachably and fixedly installed with a buffer hopper located above the water inlet pipe. The diversion screen extends above the buffer hopper, and the bottom of the buffer hopper is made of mesh. The buffer hopper is used to store solid debris and leeches.

[0015] Preferably, it also includes a reflux mechanism, which is installed on the buffer hopper and is used to drive the leeches in the buffer hopper back into the breeding pond;

[0016] The reflux mechanism includes a reflux trough, a flow guide plate, and a baffle.

[0017] The bottom of the buffer hopper is provided with evenly distributed reflux grooves;

[0018] The buffer hopper is equipped with a flow guide plate, which is a V-shaped structure. The flow guide plate extends into the return trough, and the end of the flow guide plate with the larger opening is located in the return trough. The flow guide plate blocks the return trough.

[0019] The end of the diversion plate away from the return channel has evenly distributed guide grooves.

[0020] The buffer hopper is equipped with a cover, which corresponds to the flow guide plate and is used to block the guide groove.

[0021] Preferably, each of the covers is composed of a mounting plate, a baffle, and a support spring;

[0022] The mounting plate is a plate-shaped structure, and multiple mounting plates are connected to each other to form a whole, and a lifting handle is installed on multiple mounting plates.

[0023] Both sides of the mounting plate are hinged with baffles, and a support spring is fixedly installed between the baffles and the mounting plate. In the initial state, two adjacent baffles are close to each other.

[0024] Preferably, the upper surface of the baffle plate is provided with a heat-absorbing coating on the side away from the mounting plate.

[0025] Preferably, a partition plate is fixedly installed inside the breeding pond, and the partition plate and the breeding pond form a drainage channel. An inclined extension bucket is installed at the bottom of the buffer bucket, and the opening of the extension bucket is located above the drainage channel. The drainage channel is used to guide the leeches to avoid the drainage trough when they flow back.

[0026] Preferably, absorbent cotton strips are fixedly installed inside the buffer hopper.

[0027] Preferably, the absorbent cotton strip extends and is fixed inside the extension hopper, the water inlet pipe extends into the extension hopper, and the water inlet pipe is designed with an opening at the gap of the absorbent cotton strip.

[0028] Preferably, the drainage pipe is arranged in the same direction as the tangent of the diverter screen in the drainage trough, and the water flow direction in the drainage trough is consistent with the rotation direction of the diverter screen.

[0029] Preferably, a driving component is installed on the aquaculture pond, and the driving component is connected to the connecting frame in a transmission manner.

[0030] A method for using an inlet and drainage system for a leech breeding pond, the method comprising the following steps:

[0031] S1. Water Inlet: After adjusting the temperature, pH value, and dissolved oxygen content of the pre-purified aquaculture water to the values ​​specified in the leech aquaculture process, introduce it into the water inlet pipe.

[0032] S2, Circulation: Open one end of the drain pipe outside the aquaculture pond and, with the assistance of the pumping equipment, drain the aquaculture water from the pond. After being drained, the water is purified, pH adjusted, and oxygen content adjusted before being transported back to the water supply pipe.

[0033] S3, Diversion: As the aquaculture water flows into the drainage pipe, it is filtered by the diversion screen. At the same time, the diversion screen rotates under the drive of the drive component. During the rotation, the debris and leeches attached to the diversion screen are lifted and finally poured into the buffer hopper.

[0034] S4. Cleaning: During the long-term water circulation process, the debris generated in the aquaculture ponds accumulates in the buffer hopper. After the staff manually screens the buffer hopper, the debris can be cleaned up to maintain the continuous circulation of aquaculture water.

[0035] The beneficial effects of this invention are as follows:

[0036] 1. The water inlet and outlet system for a leech breeding pond and its usage method described in this invention, by setting up a diversion mechanism and using a diversion screen, divides the water to be discharged and circulated, so that a small portion of the water and most of the solid impurities and leeches are carried by the water bucket and poured into the buffer bucket, while most of the water and a small portion of impurities enter the water purification equipment through the drain pipe. Therefore, in the dynamic adjustment process of the water body, on the one hand, the probability of leeches escaping is reduced by filtering the discharged water, and on the other hand, the probability of the drainage channel being blocked is effectively reduced by transferring and collecting the filtered impurities and leeches.

[0037] 2. The water inlet and outlet system for a leech breeding pond and its usage method described in this invention, by setting up a diversion plate, utilizes the leech's ability to move independently, allowing the leeches to return to the breeding pond through the guide channel on the diversion plate. Therefore, when workers clean the buffer hopper, the number of leeches in the buffer hopper is effectively reduced, thereby reducing the workload of sorting. At the same time, the timely return of leeches to the breeding pond through the guide channel also reduces the probability of leeches being damaged or dying due to environmental changes. Attached Figure Description

[0038] The invention will now be further described with reference to the accompanying drawings.

[0039] Figure 1 This is a perspective view of the present invention;

[0040] Figure 2 These are partial structural diagrams of this invention;

[0041] Figure 3 It is a 3D view of the assembly of the diversion screen and the drainage pipe;

[0042] Figure 4 It is an assembly 3D view of the connecting frame and the driving component;

[0043] Figure 5 It is a three-dimensional view of the assembly of the buffer bucket and the extension bucket;

[0044] Figure 6 It is a 3D view of the cover;

[0045] Figure 7 This is a diagram of the internal structure of the buffer chamber;

[0046] Figure 8 This is a diagram of the internal structure of the extended bucket;

[0047] Figure 9 This is a schematic diagram of the drainage channel;

[0048] Figure 10 This is a flowchart of the method of using the present invention.

[0049] In the diagram: 1. Aquaculture pond; 11. Inlet pipe; 12. Drainage pipe; 2. Diverting screen; 21. Drainage trough; 23. Water hopper; 24. Mounting roller; 25. Connecting frame; 26. Buffer hopper; 3. Return trough; 31. Diversion plate; 32. Guide trough; 4. Mounting plate; 41. Baffle; 42. Support spring; 43. Lifting handle; 44. Heat-absorbing coating; 5. Divider plate; 51. Diversion channel; 52. Extension hopper; 53. Water-absorbing cotton strip; 6. Drive component. Detailed Implementation

[0050] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0051] like Figures 1 to 9 As shown, the leech breeding pond water inlet and outlet system of the present invention includes a breeding pond body 1, an inlet pipe 11 and an outlet pipe 12;

[0052] Both the inlet pipe 11 and the outlet pipe 12 are installed in the aquaculture tank 1. The inlet pipe 11 is located above the water surface of the aquaculture tank 1 and is connected to an inlet water detection device. The outlet pipe 12 is located at the bottom of the aquaculture tank 1 and is connected to a water purification device.

[0053] It also includes a diversion mechanism, which is installed at the opening of the drain pipe 12 and is used to divert solid debris, leeches and pool water;

[0054] The diversion mechanism includes a diversion screen 2, a mounting roller 24, a connecting frame 25, and a buffer hopper 26;

[0055] The aquaculture pond 1 is provided with a drainage trough 21, and the drainage pipe 12 is installed at the bottom of the drainage trough 21. A diversion screen 2 is rotatably installed in the aquaculture pond 1. The diversion screen 2 is a circular annular screen plate. The diversion screen 2 extends into the drainage trough 21 and blocks the opening of the drainage pipe 12.

[0056] A water bucket 23 is fixedly installed on the inner side of the diversion screen 2, and the opening of the water bucket 23 faces the direction of movement of the diversion screen 2;

[0057] An installation roller 24 is installed on the aquaculture pond 1, and a connecting frame 25 is fixedly installed on the diversion screen 2. The diversion screen 2 is rotatably mounted on the installation roller 24 through the connecting frame 25.

[0058] A buffer hopper 26 is detachably and fixedly installed inside the aquaculture pond 1. The buffer hopper 26 is located above the water inlet pipe 11. The diversion screen 2 extends above the buffer hopper 26. The bottom of the buffer hopper 26 is made of mesh. The buffer hopper 26 is used to store solid debris and leeches.

[0059] In leech farming, dynamic regulation of the water used for farming is one of the means to enhance water stability and create a suitable environment for leech production. When the water is dynamically regulated, the water flows through the inlet and outlet system and circulates between the farming pond 1 and the external water purification and regulation equipment. During this process, by setting up a diversion mechanism, large solid impurities, leeches and water in the farming pond 1 are separated. This reduces the probability of the drain pipe 12 being blocked and prevents leeches from escaping through the drain pipe 12.

[0060] Specifically, in this invention, the drainage trough 21 is installed at the bottom of the aquaculture pond 1 to cooperate with the inlet pipe 11 for water circulation. During drainage, the water flow carries debris, leech excrement, sludge, etc., into the drainage trough 21. Before entering the drainage pipe 12, it is screened by the diversion screen 2. During screening, small particles of impurities pass through the mesh of the diversion screen 2 and enter the water purification equipment along with the water. It should be noted that the water purification equipment described in this invention can be a combination of water source purification equipment and inlet water detection equipment, or other water treatment equipment well known to those skilled in the art. The specific equipment should be determined according to the actual water treatment process required. Its main purpose is to treat aquaculture water and maintain the stability of the water quality inside the aquaculture pond 1. Large particles of impurities after diversion and leeches that accidentally enter the drainage trough 21 are intercepted by the diversion screen 2. As time goes by, the part of the diversion screen 2 corresponding to the drainage trough 21 gradually becomes blocked. At this time, the operator manually pushes the diversion screen 2 to rotate. Since the diversion screen 2 is annular and is rotatably mounted on the mounting roller 2 via the connecting frame 25, 4. Therefore, when the diversion screen 2 rotates, the diversion screen 2 and the drainage trough 21 generate relative motion. As the diversion screen 2 continues to rotate, the leeches and debris attached to the diversion screen 2 gradually fall into the water hopper 23 under the action of gravity. Subsequently, under the support of the water hopper 23, they move with the diversion screen 2 to the surface of the aquaculture water. When the water hopper 23 rotates to the top with the diversion screen 2, the opening position of the water hopper 23 changes. Under the action of gravity, the water, impurities, and leeches in the water hopper 23 fall downwards and are intercepted by the buffer hopper 26. 26 is a container with an open top, and the bottom of the buffer hopper 26 is made of mesh. Therefore, the water flowing into the buffer hopper 26 will leak through the mesh of the mesh, while solid impurities and leeches are collected in the buffer hopper 26. The staff cleans the buffer hopper 26 regularly, and during the cleaning, the leeches are selected and put back into the breeding pond. The water flowing into the water purification equipment through the drain pipe 12 is purified and regulated, and then flows back to the breeding pond 1 through the inlet pipe 11, thereby realizing the dynamic regulation of the water in the breeding pond.

[0061] This invention, by setting up a diversion mechanism and using a diversion screen 2, diverts the water to be discharged and circulated, so that a small portion of the water and most of the solid impurities and leeches are carried by the water hopper 23 and poured into the buffer hopper 26, while most of the water and a small portion of the impurities enter the water purification equipment through the drain pipe 12. Therefore, in the dynamic adjustment process of the water, on the one hand, the probability of leeches escaping is reduced by filtering the discharged water, and on the other hand, the probability of the drainage channel being blocked is effectively reduced by transferring and collecting the filtered impurities and leeches.

[0062] As a preferred embodiment of the present invention, a reflux mechanism is also included, which is installed on the buffer hopper 26 and is used to drive the leeches in the buffer hopper 26 back into the aquaculture pond 1.

[0063] The reflux mechanism includes a reflux trough 3, a flow guide plate 31, and a baffle.

[0064] The bottom of the buffer hopper 26 is provided with evenly distributed reflux grooves 3;

[0065] The buffer hopper 26 is equipped with a flow guide plate 31. The flow guide plate 31 is a V-shaped structure. The flow guide plate 31 extends into the return groove 3, and the end of the flow guide plate 31 with the larger opening is located in the return groove 3. The flow guide plate 31 blocks the return groove 3.

[0066] The diversion plate 31 has evenly distributed guide grooves 32 at the end away from the return groove 3;

[0067] A cover is installed inside the buffer hopper 26, and the cover corresponds one-to-one with the flow guide plate 31. The cover is used to block the guide groove 32.

[0068] To further enhance the ease of separating impurities from leeches, this invention includes a reflux mechanism. When leeches and impurities are lifted by the water hopper 23 to the top of the buffer hopper 26, as the opening position of the water hopper 23 changes, the leeches and impurities fall into the buffer hopper 26. Under the cover, the leeches and impurities do not fall directly into the guide channel 32, but instead fall to the bottom of the buffer hopper 26. As time goes on, the leeches move around in the buffer hopper 26, and some leeches gradually climb onto the diversion plate 31 and detach from the buffer hopper 26 through the guide channel 32 on the diversion plate 31. As time goes on, the number of leeches detaching gradually increases. Therefore, when the staff cleans the buffer hopper 26, the number of leeches in the buffer hopper 26 is effectively reduced, thereby reducing the workload of sorting. At the same time, the timely return of leeches to the breeding pond 1 through the guide channel 32 also reduces the probability of leeches being damaged or dying due to environmental changes.

[0069] In a preferred embodiment of the present invention, each of the covers is composed of a mounting plate 4, a baffle 41, and a support spring 42;

[0070] The mounting plate 4 is a plate-shaped structure, and multiple mounting plates 4 are connected to each other to form a whole, and a lifting handle 43 is installed on multiple mounting plates 4.

[0071] Both sides of the mounting plate 4 are hinged with baffles 41, and a support spring 42 is fixedly installed between the baffles 41 and the mounting plate 4. In the initial state, two adjacent baffles 41 are close to each other.

[0072] A heat-absorbing coating 44 is provided on the upper surface of the baffle 41 away from the mounting plate 4.

[0073] To further reduce the impact of diversion treatment on the health of leeches, this invention uses an installation plate 4, a baffle 41, and a support spring 42 to form a cover. When leeches and impurities fall into the buffer hopper 26, they fall directly onto the baffle 41, forcing the baffle 41 to compress the support spring 42, thus providing a buffer for the leeches' fall. When the baffle 41 deflects, under the influence of gravity, the leeches and impurities slide to the bottom of the buffer hopper 26. When impurities and leeches are mixed, the baffle 41 has a heat-absorbing coating 44 on its upper surface away from the installation plate 4, resulting in a higher temperature at the end of the inclined baffle 41 near the bottom of the buffer hopper 26. This temperature increases the probability of leeches moving at the bottom of the buffer hopper 26. The baffle 41, no longer pressed down by the weight, then... Under the action of the supporting spring 42, the top of the buffer hopper 26 is blocked again. On the one hand, the baffle 41 blocks the opening at the top of the buffer hopper 26, which can effectively prevent direct sunlight from hitting the leeches and reduce the damage of the light environment to the leeches. On the other hand, the top of the buffer hopper 26 is blocked, which can also prevent the leeches from escaping from the top of the buffer hopper 26. The leeches that crawl out through the guide groove 32 are located at the bottom of the buffer hopper 26. Even if the leeches can move along the outer wall of the buffer hopper 26, due to the support of the buffer hopper 26 in this invention, there is a certain distance between it and the edge of the breeding pond 1, which can greatly reduce the probability of the leeches escaping outside the breeding pond 1. The lifting handle 43 is designed to make it easier for the staff to remove the cover when cleaning the buffer hopper 26.

[0074] In a preferred embodiment of the present invention, a partition plate 5 is fixedly installed inside the breeding pond 1, and the partition plate 5 and the breeding pond 1 form a flow channel 51. An inclined extension hopper 52 is installed at the bottom of the buffer hopper 26, and the opening of the extension hopper 52 is located above the flow channel 51. The flow channel 51 is used to guide the leeches to avoid the drainage trough 21 when they flow back.

[0075] Since the buffer hopper 26 is located above the drainage trough 21, in order to reduce the probability of leeches falling from the buffer hopper 26 and re-entering the drainage trough 21, this invention includes an extension hopper 52 and a partition plate 5. The partition plate 5 is fixedly installed in the breeding pond 1, and the partition plate 5 and the inner wall of the breeding pond 1 form a drainage channel 51. The opening of the extension hopper 52 is located directly above the drainage channel 51. When leeches fall from the through trough, they are intercepted by the extension hopper 52 and crawl out from the opening of the extension hopper 52. During this process, as the diversion screen 2 continues to operate, the mixture of water and impurities is periodically poured into the buffer hopper 26 under the action of the water hopper 23. After being filtered by the buffer hopper 26, the water enters the extension hopper 52 and flows out from the opening of the extension hopper 52. Therefore, under the periodic impact of the water flow, the leeches fall from the opening of the extension hopper 52. After falling into the diversion channel 51, the leeches are guided by the diversion channel 51, thereby reducing the probability of the leeches re-entering the drainage tank 21.

[0076] In a preferred embodiment of the present invention, a water-absorbing cotton strip 53 is fixedly installed inside the buffer hopper 26. The water-absorbing cotton strip 53 extends and is fixed inside the extension hopper 52. The water inlet pipe 11 extends into the extension hopper 52. The water inlet pipe 11 is designed with an opening at the gap of the water-absorbing cotton strip 53.

[0077] To further enhance the impact effect on the leeches in the extension hopper 52, the water inlet pipe 11 extends into the extension hopper 52 and is set with an opening in the inner cavity of the buffer hopper 26. The water inlet pipe 11 continuously supplies water to the buffer hopper 26, thereby ensuring that there is always water flow impact in the extension hopper 52. At the same time, since the absorbent cotton strip 53 fixedly installed in the buffer hopper 26 extends into the extension hopper 52, when the water flows, the capillary action of the absorbent cotton strip 53 maintains a moist environment in the buffer hopper 26, reducing the probability of damage to the leeches in the buffer hopper 26.

[0078] In a preferred embodiment of the present invention, the drainage pipe 12 is arranged in the same direction as the tangential direction of the diversion screen 2 in the drainage trough 21, and the water flow direction in the drainage trough 21 is consistent with the rotation direction of the diversion screen 2.

[0079] A drive unit 6 is installed on the aquaculture pond 1, and the drive unit 6 is connected to the connecting frame 25 in a transmission manner.

[0080] To further enhance the ease of system operation, the opening direction of the drain pipe 12 in this invention is consistent with the tangential direction of the diversion screen 2, and the water flow direction in the drain trough 21 is consistent with the rotation direction of the diversion screen 2. Therefore, during continuous drainage, the water flow will provide a driving force to the diversion screen 2, causing the diversion screen 2 to have a rotational tendency. At the same time, a drive component 6 is provided, which is connected to the connecting frame 25 by transmission. In this embodiment, the drive component 6 is preferably a drive motor, and the drive component 6 and the connecting frame 25 are connected by belt transmission. Therefore, under the combined action of the drive component 6 and the water flow impact, the diversion screen 2 can rotate stably, thereby continuously diverting impurities and water flow during the water dynamic adjustment process, thus effectively reducing the probability of the drainage channel being blocked.

[0081] like Figure 10 As shown, a method for using an inlet and drainage system for a leech breeding pond includes the following steps:

[0082] S1. Water inlet: After adjusting the temperature, pH value and dissolved oxygen content of the pre-purified aquaculture water to the values ​​specified in the leech aquaculture process, the water is introduced into the water inlet pipe 11.

[0083] S2, Circulation: Open one end of the drain pipe 12 located outside the aquaculture tank 1, and with the assistance of the pumping equipment, discharge the aquaculture water in the aquaculture tank 1. After discharge, the water is purified, pH adjusted, and oxygen content adjusted, and then transported back to the water supply pipe.

[0084] S3, Diversion: As the aquaculture water flows to the drain pipe 12, it is filtered by the diversion screen 2. At the same time, the diversion screen 2 rotates under the drive of the drive unit 6. During the rotation, the debris and leeches attached to the diversion screen 2 are lifted and finally poured into the buffer hopper 26.

[0085] S4. Cleaning: During the long-term water circulation process, the debris generated in the aquaculture pond accumulates in the buffer hopper 26. After the staff manually screens the buffer hopper 26, the debris can be cleaned up, maintaining the continuous circulation of aquaculture water.

[0086] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A leech breeding pond water inlet and outlet system, comprising a breeding pond body (1), a water inlet pipe (11) and a water outlet pipe (12); The water inlet pipe (11) and the water outlet pipe (12) are both installed in the breeding pond body (1), the water inlet pipe (11) is above the water surface of the breeding pond body (1), and the water inlet pipe (11) is connected with a water inlet detection device, the water outlet pipe (12) is at the bottom of the breeding pond body (1), and the water outlet pipe (12) is connected with a water source purification device; characterized in that It also includes a shunt mechanism, which is installed at the opening of the water outlet pipe (12), and is used for shunting solid impurities, leeches and pond water; The shunt mechanism includes a shunt screen (2), a mounting roller (24), a connecting frame (25) and a buffer hopper (26); A drainage groove (21) is formed in the breeding pond body (1), the water outlet pipe (12) is installed at the bottom of the drainage groove (21), and the shunt screen (2) is rotatably installed in the breeding pond body (1); the shunt screen (2) is a circular ring-shaped screen plate, the shunt screen (2) extends into the drainage groove (21), and the shunt screen (2) blocks the opening of the water outlet pipe (12); A water bucket (23) is fixedly installed on the inner side of the shunt screen (2), and the opening direction of the water bucket (23) is towards the movement direction of the shunt screen (2); A mounting roller (24) is installed on the breeding pond body (1), a connecting frame (25) is fixedly installed on the shunt screen (2), and the shunt screen (2) is rotatably installed on the mounting roller (24) through the connecting frame (25); A buffer hopper (26) is detachably fixedly installed in the breeding pond body (1), the buffer hopper (26) is above the water inlet pipe (11), the shunt screen (2) extends above the buffer hopper (26), the bottom of the buffer hopper (26) is made of gauze, and the buffer hopper (26) is used for storing solid impurities and leeches; It also includes a backflow mechanism, which is installed on the buffer hopper (26), and is used for driving the leeches in the buffer hopper (26) to flow back into the breeding pond body (1); The backflow mechanism includes a backflow groove (3), a drainage plate (31) and a cover; The bottom of the buffer hopper (26) is provided with uniformly distributed backflow grooves (3); The buffer hopper (26) is provided with drainage plates (31), the drainage plates (31) are all V-shaped structures, the drainage plates (31) all extend into the backflow grooves (3), one end of the drainage plate (31) with a larger opening is located in the backflow groove (3), and the drainage plate (31) blocks the backflow groove (3); The end of the drainage plate (31) away from the backflow groove (3) is provided with uniformly distributed through grooves (32); The buffer hopper (26) is provided with covers, the covers correspond to the drainage plates (31) one by one, and the covers are used for blocking the through grooves (32); Each cover is composed of a mounting plate (4), a baffle (41) and a supporting spring (42); The mounting plate (4) is a plate-shaped structure, a plurality of mounting plates (4) are connected with each other to form an integral whole, and a lifting handle (43) is jointly installed on the plurality of mounting plates (4); The mounting plate (4) is hingedly mounted with a baffle (41) on both sides, and a supporting spring (42) is fixedly mounted between the baffle (41) and the mounting plate (4), and in the initial state, the two adjacent baffles (41) are close to each other.

2. The water leech breeding pond water inlet and outlet system according to claim 1, characterized in that: The upper surface of the baffle (41) is provided with a heat-absorbing coating (44) away from the mounting plate (4).

3. The water leech breeding pond water inlet and outlet system according to claim 2, characterized in that: The breeding pool body (1) is fixedly provided with a partition plate (5), and a drainage channel (51) is formed between the partition plate (5) and the breeding pool body (1), the bottom of the buffer hopper (26) is provided with an inclined extension hopper (52), the opening of the extension hopper (52) is located above the drainage channel (51), and the drainage channel (51) is used for guiding the water mite backflow to avoid the drainage groove (21).

4. The water leech breeding pond water inlet and outlet system according to claim 3, characterized in that: The buffer hopper (26) is fixedly provided with a water-absorbing cotton bar (53).

5. The water leech breeding pond water inlet and outlet system according to claim 4, characterized in that: The water-absorbing cotton bar (53) extends and is fixed into the extension hopper (52), the water inlet pipe (11) extends into the extension hopper (52), and the water inlet pipe (11) is designed with an opening corresponding to the gap of the water-absorbing cotton bar (53).

6. The water drain system of the leech breeding pond according to claim 1 or 5, characterized in that: The arrangement direction of the drainage pipe (12) in the drainage groove (21) is the same as the tangential direction of the shunt screen (2), and the water flow direction in the drainage groove (21) is consistent with the rotating direction of the shunt screen (2).

7. The water leech breeding pond water inlet and outlet system according to claim 6, characterized in that: The breeding pool body (1) is provided with a driving member (6), and the driving member (6) is in transmission connection with the connecting frame (25).

8. A method for using a water discharge system of a leech breeding pond, characterized in that: The use method is suitable for the water mite breeding pool inlet and outlet water system of claim 7, and the use method comprises the following steps: S1, water inlet: after adjusting the temperature, PH value and dissolved oxygen content of the pre-purified breeding water to the values specified in the water mite breeding process, the water is introduced into the water inlet pipe (11); S2, circulation: the water outlet pipe (12) is partially opened at the outer end of the breeding pool body (1), and the breeding water in the breeding pool body (1) is discharged with the assistance of the water pumping equipment, and after purification, PH adjustment and oxygen content adjustment, the breeding water is again delivered to the water inlet pipe; S3, shunting: in the process of flowing to the water outlet pipe (12), the breeding water is filtered through the shunt screen (2), and the shunt screen (2) is rotated under the drive of the driving member (6), and in the rotating process, the impurities and water mites attached to the shunt screen (2) are lifted and finally poured into the buffer hopper (26); S4, cleaning: in the process of long-time water circulation, the impurities generated in the breeding pool are gathered in the buffer hopper (26), and after manual screening of the buffer hopper (26) by the worker, the impurities can be cleaned to maintain the continuous circulation of the breeding water.

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