Leech breeding device

Abstract

The utility model discloses a leech breeding device which comprises a water inlet device, a barrel body, an anti-escape device, a vortex cleaning device, a water drainage device, a sensor device, an isolation inhabitation device, a feeding frame and a temperature control device, the anti-escape device is arranged at the top end of the barrel body, and the water drainage device is arranged at the bottom end of the barrel body. The sensor device and the temperature control device are connected with the barrel body; a detachable isolation inhabitation net is arranged between the barrel body and the drainage device, and a vortex cleaning device is arranged between the isolation inhabitation device and the drainage device; the feeding frame is arranged to be movable; the temperature control device is arranged to be capable of automatically monitoring, regulating and controlling the temperature in the barrel body; and the water inlet device is used for conveying water into the barrel body. According to the leech breeding device and the leech breeding method, the leech breeding density can be increased to 4-6 jin per square meter, the breeding survival rate can be more than 80%, the disease incidence can be less than 10%, and the accumulation fermentation effect of pollutants can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of leech breeding, in particular to a leech breeding device. Background Art

[0002] Leeches have excellent medicinal value and huge market demand potential. Existing leech farming methods include using earthen ponds, cement ponds, cages (floating or hanging nets), or knife-scraped cloth farming. However, existing leech rearing methods require large farming units, making it difficult to promptly remove snail debris, causing water pollution and severe excess ammonia and nitrogen levels in the water, leading to high leech mortality. Furthermore, due to the cross-flow of water, diseases cannot be promptly shut off, leading to rapid disease transmission and a high incidence of leech diseases. The mortality rate is high and uncontrollable in the later stages of the disease. The yield per unit area is low, which easily causes pollution, does not meet environmental protection requirements, and does not allow for three-dimensional farming. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is that existing artificial leech breeding methods have high breeding mortality, low yield, rapid disease transmission, and the serious breeding pollution caused by breeding. This utility model provides a leech breeding device and leech breeding method, which improves the breeding density and breeding survival rate of leeches, while effectively reducing the incidence of disease and the pollution caused by breeding.

[0004] To achieve the above-mentioned object, a preferred embodiment of the present invention provides a leech breeding device, comprising a water inlet device, a barrel, an escape prevention device, a vortex cleaning device, a drainage device, a sensor device, an isolation habitat device, a feeding frame and a temperature control device;

[0005] Among them, the anti-escape device is arranged at the top of the barrel body, the drainage device is arranged at the bottom of the barrel body, and the sensor device and the temperature control device are arranged to be connected to the barrel body; a detachable isolation habitat device is arranged between the barrel body and the drainage device, and the mesh of the isolation habitat device is 10 mesh-80 mesh; the feeding frame is arranged to be movable, and is placed in the barrel body when in use, and is taken out of the barrel body for replacement and cleaning after use; the temperature controller is arranged to automatically monitor and regulate the temperature in the barrel body; the water inlet device includes a water volume control and a foam generator, which is arranged to supply water into the barrel body and reduce the disturbance to the leeches through foaming treatment; the sensor device is used to automatically detect the oxygen content, pH value, ammonia nitrogen and other indicators of the water body, and can automatically aerate and automatically upload data; a vortex cleaning device is arranged between the isolation habitat device and the drainage device.

[0006] Furthermore, the barrel body includes an upper part and a lower part, the upper part is one of a cylinder, a cuboid or a cube, and the lower part is a cone, and the projected area of ​​the barrel body is 0.5-5 square meters; a double folded edge is set on the top of the barrel body, and there is an embedded groove at the top and middle of the barrel body; the bottom of the cone is a reserved interface for the drainage pipe, and the interface diameter is 2.5cm-20cm.

[0007] Furthermore, the barrel body includes one of plastic, stainless steel, aluminum alloy, and glass fiber reinforced plastic as a support inner layer and a heat-insulating outer layer composed of a polymer material.

[0008] Furthermore, the top of the barrel body is double-folded inwardly of the barrel, the length of the first fold is 5-10 cm, the length of the second fold is 2-5 cm, and the folding angle is 80-120 degrees.

[0009] Furthermore, the anti-escape device is connected to the groove at the top of the barrel body, and the anti-escape device includes one of a folded edge anti-escape net, a pulse electronic fence and a rough attachment material anti-escape net.

[0010] Furthermore, the inverted border escape prevention net includes one of stainless steel, polyethylene PE, high-density low-pressure polyethylene HDPE, polypropylene PP, and ABS plastic particles, the mesh opening is set to 20-80 meshes, and the inverted angle is 80-120 degrees.

[0011] Furthermore, the voltage of the pulse electronic fence is 12-36V, the pulse duration is 0.1-0.5 seconds, and the pulse interval is 5-10 seconds.

[0012] Furthermore, the surface of the rough attachment material anti-escape net is provided with protrusions with a diameter of 180-600 microns, and the gap between the protrusions is 320-500 microns.

[0013] Furthermore, the drainage device includes a drain valve, a straight discharge outlet, a water level control pipe and a siphon drain pipe; a first valve is provided at one end of the drainage device close to the barrel body, the first valve is provided outside the drainage device and connected to a water pipe, and the water pipe extends into the drainage device; the straight discharge outlet is provided at the bottom end of the drainage device, a second valve is provided at one end of the straight discharge outlet, and a water level controller and a siphon drain pipe are provided at the other corresponding end, and the water level controller and the siphon drain pipe are connected to the straight discharge outlet through a water pipe.

[0014] Furthermore, the vortex cleaning device is located in the upper middle part of the cone. The vortex cleaning device includes a quick-release interface and a variable-angle water outlet gun head. By connecting external high-pressure water, a high-pressure vortex water flow is generated in the cone, thereby cleaning the barrel body.

[0015] Furthermore, the isolation habitat device is located in the groove in the middle of the barrel body, including a rubber ring, a net body and a vibrator slot, and the mesh size of the net body is set to 10-80 meshes.

[0016] Technical Effects

[0017] The utility model provides a leech breeding device. When leeches are bred using the device, the survival rate can be increased to over 80%. The breeding density can reach 100-1000 leeches per square meter, with 200-300 leeches per square meter achieving the best input-output ratio. The yield of traditional breeding technology is 1-2 jin per square meter. The leech breeding device and leech breeding method provided by the utility model can increase the yield to 4-6 jin per square meter. In addition, the leech breeding device provided by the utility model can be used to breed leeches and breed them at intervals, thereby controlling the incidence of autumn diseases to below 10%.

[0018] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a leech breeding device according to a preferred embodiment of the present invention;

[0020] Figure 2 The utility model is a cross-sectional schematic diagram of a leech breeding device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] like Figure 1 、 2As shown, the utility model provides a leech breeding device, comprising a water inlet device, a barrel body 1, an anti-escape device 7, a drainage device, a sensor device 8, a feeding frame 10 and a temperature control device 9, wherein the anti-escape device is arranged at the top of the barrel body, the drainage device is arranged at the bottom of the barrel body, the sensor device 8 and the temperature control device 9 are arranged to be connected to the barrel body; a detachable isolation habitat net 19 is arranged between the barrel body 1 and the drainage device, and the mesh size of the habitat net 19 is 10-80 mesh, which can effectively isolate the leeches from the pollutants; the feeding frame 10 is provided with a The device is movable and is placed in the barrel body 1 when in use, and is taken out of the barrel body 1 for replacement and cleaning after use; the temperature controller is configured to automatically monitor and regulate the temperature in the barrel body 1; the water inlet device includes a water volume control and a foam generator, which are configured to supply water into the barrel body and reduce disturbance to the leeches through foaming treatment, in line with the biological characteristics of leeches that prefer quietness; the sensor device is configured to automatically detect indicators such as oxygen content, pH value, ammonia nitrogen, etc. in the water body, and can automatically aerate and upload data; a vortex cleaning device is arranged between the isolation habitat device and the drainage device.

[0023] The barrel body 1 comprises an upper portion and a lower portion, wherein the upper portion is a cylinder, a cuboid, or a cube, and the lower portion is a cone. In this embodiment, the barrel body 1 is a cylinder.

[0024] The barrel body includes one of plastic, stainless steel, aluminum alloy, and fiberglass as a supporting material and a polymer thermal insulation material. The supporting material of this embodiment is plastic, and the polymer thermal insulation material is used to achieve a thermal insulation effect to reduce the impact of the ambient temperature on the water temperature. A double reverse fold is provided on the top of the barrel body, and there is an embedded groove at the top and the middle of the barrel body. The bottom of the cone is a reserved interface for the drainage pipe, and the interface diameter is 2.5cm-20cm. The diameter of the drainage pipe interface in this embodiment is 3.5cm. The barrel body includes an upper part and a lower part, the upper part is one of a cylinder, a cuboid or a cube, and the lower part is a cone, and the projected area of ​​the barrel body is 0.5-5 square meters.

[0025] The top of the barrel body is provided with a double folded edge, with an inset groove at the top and middle of the barrel body. The top of the barrel body is double-folded inwardly, with the first fold length being 5-10 cm, the second fold length being 2-5 cm, and the fold angle being 80-120 degrees. In this embodiment, the first fold length is 10 cm, the second fold length is 5 cm, and the fold angle is 80 degrees.

[0026] The anti-escape device is connected to the groove at the top of the barrel body, and the anti-escape device includes one of a folded-edge anti-escape net, a pulse electronic fence, and a rough attachment material anti-escape net. Among them, the folded-edge anti-escape net includes one of stainless steel, polyethylene PE, high-density low-pressure polyethylene HDPE, polypropylene PP, and ABS plastic particles, with a mesh size of 20-80 mesh and a folding angle of 80-120 degrees. The voltage of the pulse electronic fence is 12-36v, the pulse duration is 0.1-0.5 seconds, and the pulse interval is 5-10 seconds. The surface of the rough attachment material anti-escape net is provided with protrusions with a diameter of 180-600 microns, and the protrusion gap is 320-500 microns. In this embodiment, the anti-escape device is a folded-edge anti-escape net.

[0027] The drainage device includes a drain valve, a straight discharge port 21, a water level control pipe 4, and a siphon drain pipe 6. A first valve 2 is provided at one end of the drainage device close to the barrel body, and a high-pressure disturbance pipe 20 is provided on the upper part of the cone body, which is externally connected to a high-pressure water pipe. The angle between the high-pressure disturbance pipe and the conical slope of the drainage device is 30-60 degrees. The high-pressure disturbance pipe 20 and the external high-pressure water pipe can generate a vortex when the drainage device drains water, increase the water pressure, and facilitate flushing the barrel body and improving the sewage discharge capacity. It can also promote water circulation in the cavity 11, prevent dead corners in the water body, reduce the accumulation of harmful substances such as leftover bait and excrement, and ensure the cleanliness of the leech's living environment. The height of the water level control pipe is set at 1 / 2-2 / 3 of the barrel body.

[0028] A direct discharge outlet 21 is located at the bottom of the drainage system. A second valve 3 is installed at one end of the outlet, and a water level controller and siphon drain pipe are installed at the other end. The water level controller 4 and siphon drain pipe 6 are connected to the outlet via a water pipe. A third valve 5 is installed at the end of the siphon drain pipe. The diameter of the direct discharge outlet ranges from 3 to 8 cm. The siphon drain pipe utilizes the siphon effect, allowing the water pressure to be adjusted by adjusting the height of the siphon pipe. This creates a strong flushing force to remove accumulated dirt from the barrel.

[0029] The isolation perch is a detachable isolation perch that is secured and removed by clips and rubber pads. The isolation perch is located in a groove in the middle of the barrel and includes a rubber ring, a net body, and a vibrator slot. The mesh size of the net is set to 10-80 mesh.

[0030] The water temperature within the barrel is monitored by a temperature sensor 17 and controlled within a range of 20-35°C, with a temperature difference of no more than 5-10°C per 24 hours. When the temperature is outside the normal range for more than four hours, the temperature controller 18 is activated to regulate the water temperature within the leech breeding device. Simultaneously, the temperature sensor 17 and the temperature controller 18 are connected to a display screen and a control switch disposed outside the barrel to adjust or control the temperature controller. The sensor device 8 includes a pH sensor 13, a dissolved oxygen sensor 14, and an ammonia nitrogen sensor 15. A filter 12 is disposed outside the pH sensor 13, the dissolved oxygen sensor 14, and the ammonia nitrogen sensor 15, allowing each sensor to detect the pH value, dissolved oxygen content, and ammonia nitrogen content in the water and protecting the sensors from interference from leeches. Furthermore, in this embodiment, a temperature heater is also included, which is mounted within the barrel. The temperature heater communicates with the temperature sensor and is used to control the temperature of the water within the barrel for leech breeding.

[0031] The temperature sensor 17 measures the water temperature in real time and transmits the temperature signal to the temperature heater, which heats the water in the barrel to maintain it within the ideal temperature range for leech growth and reproduction. This eliminates the need for the keeper to measure the water temperature with a thermometer before heating it, thus preventing excessive temperature fluctuations that could irritate the leeches. The temperature heater's slow heating rate of 0.2-0.5°C per hour also prevents excessive temperature fluctuations. The dissolved oxygen sensor 14 measures the dissolved oxygen content in the water in real time and transmits the dissolved oxygen signal to the oxygenator, which replenishes oxygen to prevent hypoxia caused by an overpopulation of leeches. The pH sensor measures the pH value of the water, enabling the keeper to implement appropriate water quality management measures to prevent pH instability that could affect leech growth. The ammonia nitrogen sensor measures the ammonia nitrogen content in the water and is equipped with an alarm. If the measured ammonia nitrogen content exceeds an upper limit, the keeper is notified to take appropriate measures to reduce the risk of ammonia nitrogen damage to the leeches.

[0032] The utility model provides a leech breeding device, and the leech breeding method using the device is as follows:

[0033] Set the breeding parameters, including water inlet, water outlet, temperature, pH value, ammonia nitrogen concentration, leech breeding density and feed ratio;

[0034] Put the leeches in and open the water inlet device, then put in the feeding box filled with bait;

[0035] After 1-2 days of feeding, clean out the remaining bait and add new bait; during this period, ensure that the water inflow is constant and the water level in the barrel is kept constant by setting an overflow pipe connected to the drain pipe;

[0036] Complete water replacement every 2-3 days. Use a straight drain or siphon drain pipe to drain the water in the aquaculture barrel and self-clean the barrel. When completing water replacement every 2-3 days, first open the water valve to drain the water in the barrel through the drain pipe. The operation is simple.

[0037] The above breeding steps are repeated until the leeches are harvested.

[0038] The leech breeding density in the embodiment of the present invention is 100-1000 leeches per square meter. The projected area of ​​the leech breeding device in the present invention is 0.65 square meters and the height is 0.5-2 meters. The leeches are fed every 2-4 days at a feeding ratio of 1-5 feed units per leech, and the remaining bait is cleared on the first or second day of feeding. The feeding frame in the present invention is circular, rectangular or square, with a projected area of ​​0.05-0.3 square meters and a height of 0.1-0.5 meters. The aperture is 20-100 mm long and 2-10 mm wide, and the base is 2-10 cm high. The feeding frame has a 20-80 mesh bottom and a 5-20 mesh around it. The top of the feeding frame is a movable mesh cover with a locking device. The feeding frame is placed on the habitat net and is made of stainless steel or plastic. The use of the feeding frame allows the leeches to eat the bait (snail) while the shells of the bait (snail) are concentrated in the feeding frame, which is convenient for timely cleaning.

[0039] In an embodiment of the present invention, the leech cultivation device further includes an aeration device, which has 2-6 aerators per square meter and an aeration rate of 0.05-0.3 m³ / 12 hours. The aeration device communicates with a dissolved oxygen sensor and automatically activates when the dissolved oxygen sensor detects that the oxygen content in the water is below 4 mg / L, thereby increasing oxygen for the leeches.

[0040] The water inlet device in this embodiment draws river or lake water, foams the water, and then injects it into the leech breeding device to reduce the disturbance of the leeches caused by the water injection. The water inlet device is normally open, and the water valves are usually kept closed. The circulating water overflows from the water level control pipe to ensure that the water in the leech breeding device maintains an appropriate water level and is constantly circulating.

[0041] In another preferred embodiment of the present invention, the leech breeding device further includes a sunshade device, and the transmittance of the sunshade device is controlled at 20-80%.

[0042] The utility model provides a leech breeding device. When leeches are bred using the device, the survival rate can be increased to 80% or even above 90%. The breeding density can reach 100-1000 leeches per square meter, with 200-300 leeches per square meter achieving the best input-output ratio. The yield of traditional breeding technology is 1-2 jin per square meter. The leech breeding device and leech breeding method provided by the utility model can increase the yield to 4-6 jin per square meter. In addition, the leech breeding device and leech breeding method provided by the utility model can control the incidence of autumn diseases to below 10%, which is much lower than that of the existing technology.

[0043] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A leech breeding device, characterized in that: It includes a water inlet device, a barrel, an anti-escape device, a vortex cleaning device, a drainage device, a sensor device, an isolation habitat device, a feeding frame and a temperature control device; In which, the anti-escape device is arranged at the top of the barrel body, the drainage device is arranged at the bottom of the barrel body, and the sensor device and the temperature control device are arranged to be connected to the barrel body; a detachable isolation habitat device is arranged between the barrel body and the drainage device, and the mesh of the isolation habitat device is 10-80 mesh; the feeding frame is arranged to be removable, placed in the barrel body when in use, and taken out of the barrel body for replacement and cleaning after use; the temperature control device is arranged to automatically monitor and regulate the temperature in the barrel body; the water inlet device includes a water volume control and a foam generator, which is arranged to supply water to the barrel body and reduce disturbance to leeches through foaming treatment; the sensor device is used to automatically detect oxygen content, pH value, ammonia nitrogen and other indicators of the water body, and can automatically aerate and automatically upload data; the vortex cleaning device is arranged between the isolation habitat device and the drainage device.

2. A leech breeding device according to claim 1, characterized in that: The barrel body includes an upper part and a lower part, the upper part is one of a cylinder, a cuboid or a cube, and the lower part is a cone, and the projected area of ​​the barrel body is 0.5-5 square meters; a double inverted folded edge is set on the top of the barrel body, and there is an embedded groove at the top and middle of the barrel body; the bottom of the cone is a reserved interface for the drainage pipe, and the interface diameter is 2.5cm-20cm.

3. A leech breeding device according to claim 2, characterized in that: The barrel body comprises one of plastic, stainless steel, aluminum alloy and glass fiber reinforced plastic as a supporting body inner layer and a heat-insulating outer layer made of a polymer material.

4. A leech breeding device according to claim 2, characterized in that: The top end of the barrel body is double-folded inwardly of the barrel, the length of the first fold is 5-10 cm, the length of the second fold is 2-5 cm, and the folding angle is 80-120 degrees.

5. The leech breeding device according to claim 4, characterized in that: The anti-escape device is connected to the groove on the top of the barrel body, and the anti-escape device includes one of a reverse-folded edge anti-escape net, a pulse electronic fence and a rough adhered material anti-escape net.

6. The leech breeding device according to claim 5, characterized in that: The inverted edge escape prevention net is made of one of stainless steel, polyethylene PE, high-density low-pressure polyethylene HDPE, polypropylene PP, and ABS plastic particles, the mesh size is set to 20-80 meshes, and the inverted angle is 80-120 degrees.

7. The leech breeding device according to claim 5, characterized in that: The voltage of the pulse electronic fence is 12-36V, the pulse duration is 0.1-0.5 seconds, and the pulse interval is 5-10 seconds.

8. The leech breeding device according to claim 5, characterized in that: The surface of the rough attachment material anti-escape net is provided with protrusions with a diameter of 180-600 microns, and the gap between the protrusions is 320-500 microns.

9. The leech breeding device according to claim 1, characterized in that: The drainage device includes a drain valve, a straight discharge outlet, a water level control pipe and a siphon drain pipe; a first valve is provided at one end of the drainage device close to the barrel body, the first valve is provided outside the drainage device and connected to a water pipe, and the water pipe extends into the drainage device; the straight discharge outlet is provided at the bottom end of the drainage device, a second valve is provided at one end of the straight discharge outlet, and a water level controller and the siphon drain pipe are provided at the other corresponding end, and the water level controller and the siphon drain pipe are connected to the straight discharge outlet through a water pipe.

10. The leech breeding device according to claim 1, characterized in that: The vortex cleaning device is located in the upper middle part of the cone. The vortex cleaning device includes a quick-release interface and a variable-angle water outlet gun head. By connecting external high-pressure water, a high-pressure vortex water flow is generated in the cone, thereby cleaning the barrel body.

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