CN110463656B - Rana spinosa hatching method and equipment - Google Patents

Rana spinosa hatching method and equipment Download PDF

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Publication number
CN110463656B
CN110463656B CN201910817997.2A CN201910817997A CN110463656B CN 110463656 B CN110463656 B CN 110463656B CN 201910817997 A CN201910817997 A CN 201910817997A CN 110463656 B CN110463656 B CN 110463656B
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stone
hatching
plate
box
water
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CN110463656A (en
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王争光
谭强
施爽
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Zhejiang University ZJU
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Zhejiang University ZJU
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
    • A01K67/02Breeding vertebrates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/46Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/48Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The invention discloses a stone frog hatching method and a stone frog hatching device, comprising the following steps: preparing before hatching, and oxygenating a water body by using an aerator, and controlling the water temperature to be 20-22 ℃; placing spawning stone slabs, and placing the stone slabs into a spawning box, wherein each stone slab floats on the surface of a water body; taking the stone slab for incubation, and moving the whole egg laying stone slab to an incubator after 1-2 skydig frog eggs are fully gathered with the stone slab; hatching, moving to a hatching box, controlling the water temperature at 22-28 ℃, and completing the hatching of the batch of Rana spinosa eggs within 10-15 days; culturing, namely putting the incubated tadpoles into a culture chamber for culturing; and (4) after incubation, putting the incubated tadpole stone slabs into a cleaning box for cleaning, and airing the stone slabs for later use. The invention provides a continuous and stable hatching method, which solves the problems of low hatching speed, high artificial strength and low hatching rate of rana spinosa.

Description

Rana spinosa hatching method and equipment
Technical Field
The invention relates to the field of cultivation, in particular to a stone frog hatching method and equipment.
Background
The stone frog, also called quasipaa spinosa, is a unique and precious product in mountainous areas in south China, lives in clear flowing mountain spring water, and takes active earthworms, shrimps, crabs, ampullaria gigas, moths, mosquitoes and other insects as food. The stone frog body has large meat, tender and delicious taste and rich nutrition, has important edible, health-care and medicinal values, and is the most common flavor characteristic and nutritional value in all the current frogs
The frog species of value. The frog meat contains high protein, glucose, amino acid, iron, calcium, phosphorus and a plurality of vitamins, has low contents of fat and cholesterol, and is a natural high-grade nourishing green food on banquet historically. At present, some technical bottlenecks of the stone-silica cultivation in the domestic industry are difficult to overcome, so that large-scale cultivation cannot be realized, and thus few commercial frogs which can be sold on the market are available, and the market demand cannot be met later, so that common consumers cannot taste the delicious food! According to the technology for incubating the rana spinosa tadpoles, the incubation rate is low, and the tadpole amount in the current year is low.
The traditional culture method is roughly divided into: firstly, the frog is allowed to lay eggs on stones directly, and the stones are carried away to an incubation pool for incubation by manpower after laying eggs, so that the method is labor-consuming and time-consuming, has high labor intensity and has certain influence on frog eggs; secondly, the breeding frogs lay eggs on the tank walls at the two sides of the artificially constructed spawning ditch or on cement ground at the bottom of the ditch, the eggs are laid from the tank walls by a small shovel after spawning, the shoveled frogs are collected together and then put into a prepared incubator for incubation, and the frogs are easily broken by shoveling the frogs manually, so that the normal frogs are damaged, the incubation rate is influenced, and the labor intensity is also high.
Disclosure of Invention
The invention provides a stone frog hatching method and equipment for overcoming the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method and equipment for hatching Rana spinosa comprise the following steps:
a. preparing before hatching: oxygenating the water body by using an aerator, and controlling the water temperature to be 20-22 ℃;
b. placing a spawning stone plate: putting the stone slabs into a spawning box, wherein each stone slab floats on the surface of a water body;
c. taking a stone slab for incubation: 1-2, after the spawns of the rana amurensis frogs are fully collected with the stone plate, the whole spawning stone plate can be moved to an incubator;
d. hatching: moving to an incubator, controlling the temperature of water at 22-28 ℃, and completing incubation of the batch of Rana spinosa eggs within 10-15 days;
e. culturing: putting the hatched tadpoles into a culture chamber for culture;
f. and (3) post-incubation treatment: putting the stone plate incubated with the tadpoles into a cleaning box for cleaning, and airing the stone plate for later use;
wherein, the stone frog hatching equipment comprises a stone frog spawning box, a stone slab, a hatching box for hatching the stone frog spawn, a cleaning box for cleaning the stone slab after hatching the stone frog, a breeding chamber for breeding hatched tadpoles, a first taking and placing device for putting the stone slab in the spawning box into the hatching box, and a second taking and placing device for putting the stone slab in the hatching box into the cleaning box, the spawning box comprises a box body, a clapboard arranged in the box body, an inclined plate positioned at one end of the clapboard and used for increasing the water level, a flat plate positioned at one side of the inclined plate and positioned at the inner side of the clapboard, a water flowing port positioned at the other side of the clapboard, a guide plate positioned at the inner side of the clapboard and positioned below the water flowing port, and a one-way flow component positioned between the box body and the clapboard, the clapboard is filled with water, a plurality of stone slabs are positioned on the water surface of the clapboard, the one-way, the water flows out of the water flowing port and then flows into the box body to form circulating water, the water in the partition plate drives the plurality of stone plates to move in the flowing process, and the first taking and placing device takes the stone plates positioned at the end parts and places the stone plates into the incubator. Through the linkage of the components, the invention realizes continuous and stable hatching and solves the problems of low hatching speed, high artificial strength and low hatching rate of the rana spinosa; the spawning box is divided into two chambers by the partition plate, and water in the two chambers flows and exchanges through the one-way flow assembly, so that the activity of water quality is improved, a plurality of stone slabs can move in one direction, and manual carrying is avoided; the one end is provided with an inclined plate for increasing the water level, so that the water level is increased, the impact force of water is increased, the floating stone plate can move, and the flat plate is also arranged, so that the water which is impacted can flow along the surface of the water, and the stone plate can move more easily; the other end of the clapboard is provided with a water flowing port, so that the excessive water flows in the box body, and the flow speed of the water on the surface is increased by arranging a flow guide plate, thereby increasing the movement of the stone plate; the survival rate of the frog eggs is improved by separating spawning, incubation and breeding, and the incubation progress is improved by operating all the working procedures simultaneously; through being equipped with washing case to slabstone self-cleaning, avoid the slabstone to use the bacterium for a long time to increase to influence the hatching.
The stone plate comprises a plate body arranged in a square body, a viscose layer arranged on the upper surface of the plate body, rotating wheels arranged at four corners of the plate body, elastic pieces arranged at two ends of the plate body, a first fixing seat arranged above the viscose layer, a second fixing seat horizontally arranged with the first fixing seat, two first conical holes arranged on the first fixing seat, and two second conical holes arranged on the second fixing seat in the same axis with the two first conical holes on the first fixing seat, wherein the size of the second conical holes is larger than that of the first conical holes, and after the stone plate touches the inner wall of the box body, the rotating wheels are contacted with the inner wall; through the arranged elastic pieces, the damage of the stone slabs caused by collision between two adjacent stone slabs is avoided, and meanwhile, the assistance can be carried out on the previous stone slab to accelerate the movement of the previous stone slab; avoid slabstone and incubator lateral wall collision through the runner that sets up, cause the damage of slabstone, rotatable runner can reduce the friction of slabstone and incubator, can also avoid the runner to touch a department for a long time simultaneously and cause the damage.
In the step e, the water temperature is controlled to be 20-24 ℃, protein powder and feed are fed every day to obtain the rana spinosa baby, and the feed is prepared into a part; 11-14 parts of dry earthworm powder, 5-8 parts of Chinese alpine rush, 5-7 parts of yellow mealworm and 20-25 parts of mung bean powder; sufficient nutrients are provided, the growth cycle of tadpoles is accelerated, and the survival rate of tadpoles is improved.
The first taking and placing device comprises a lifting frame, a fixed plate arranged on the lifting frame, two sliding grooves arranged at the lower end of the lifting frame, a moving seat arranged on the sliding grooves, two conical inserting rods fixedly arranged on the moving seat and used for inserting a first conical hole and a second conical hole, a screw rod positioned between the two conical inserting rods and penetrating through the moving seat, and a first motor fixedly arranged on the fixed rod plate and used for driving the screw rod to rotate, wherein the lifting frame drives the fixed plate to move to the bottommost end, the first motor starts the screw rod to rotate, the moving seat moves towards the direction of the stone plate, the two conical inserting rods are inserted into the first conical hole and the second conical hole on the first fixed seat and the second fixed seat, the first motor stops rotating, after the lifting frame is lifted to the highest position, the first motor is started again to drive the moving seat to continue to move to the upper part of the incubator, after the stone slabs are moved away by flowing water in the incubator, the first motor rotates reversely, the moving seat moves towards the first motor, the lifting frame drives the fixing plate to integrally descend to the lowest end, the stone slabs are taken and placed, and the steps are repeated to finish the taking and placing of a plurality of stone slabs; make the fixed plate and locate the part on the fixed plate and can reciprocate through the lifter plate, make the slabstone can remove to the incubator from the case of laying eggs, drive the screw rod through first motor and rotate, accomplish the back-and-forth movement that removes the seat to make the toper inserted bar can insert two first bell mouth and two second bell mouth on first fixing base and the second fixing base, second bell mouth size is greater than first bell mouth, makes the toper inserted bar rise the in-process and can make the slabstone slope, avoids slabstone and aquatic products to produce laminating power, makes the slabstone more easily by rising, toper inserted bar, first bell mouth and second bell mouth set up for the toper, make the toper inserted bar insert on first fixing base and the second fixing base more easily, and it is also easier at the in-process of putting simultaneously, can put the slabstone in the incubator through the flow of water.
The structure of the cleaning box is the same as that of the spawning box, the cleaning box also comprises a first rolling brush, a second rolling brush horizontally arranged with the first rolling brush, a pinion arranged at one end of the first rolling brush, a gear wheel meshed with the pinion and arranged at one end of the second rolling brush, a second motor used for driving the pinion to rotate, a flow extending plate arranged at a water flow outlet of the cleaning box, a filter screen which can circularly rotate and is positioned below the flow extending plate, a plurality of air jet pieces arranged on the inner side of the filter screen and a collecting box used for collecting impurities, the second motor is started to drive the pinion to rotate, and the pinion is meshed with the gear wheel to drive the gear wheel to rotate, so that the first rolling brush and the second rolling brush are driven to relatively rotate; the filter screen runs, the water flowing down from the flow extending plate is filtered, the air injection piece cleans the filter screen, and impurities on the filter screen are blown into the collection box; first round brush can also accelerate the removal of slabstone when wasing the slabstone bottom again, first round brush one end is equipped with pinion and second round brush one end and is equipped with the gear wheel, pinion and gear wheel meshing make second round brush and first round brush relative rotation, make the reverse power of second round brush, make the clearance cleaner, can also avoid the influence that causes the slabstone removal in the cleaning process simultaneously, the electronic pinion of second motor rotates, makes more laborsaving, indirectly reduces second round brush reverse power, and the rotational speed of the big and second round brush of rotational speed of first round brush makes the slabstone can remove and wash simultaneously.
The invention has the following advantages: provides a continuous and stable hatching method, and solves the problems of low hatching speed, high artificial strength and low hatching rate of the rana spinosa.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a partial schematic view of the first pick-and-place device.
Fig. 4 is a schematic cross-sectional view of the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is an enlarged view of fig. 4 at B.
Fig. 7 is an enlarged view of fig. 4 at C.
Fig. 8 is a schematic front view of the present invention.
FIG. 9 is a schematic view of the structure of a stone slab.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method and equipment for hatching Rana spinosa comprise the following steps:
a. preparing before hatching: oxygenating the water body by using an aerator, and controlling the water temperature to be 20-22 ℃;
b. placing a spawning stone plate: putting the stone slabs into a spawning box, wherein each stone slab floats on the surface of a water body;
c. taking a stone slab for incubation: 1-2, after the spawns of the rana amurensis frogs are fully collected with the stone plate, the whole spawning stone plate can be moved to an incubator;
d. hatching: moving to an incubator, controlling the temperature of water at 22-28 ℃, and completing incubation of the batch of Rana spinosa eggs within 10-15 days;
e. culturing: putting the hatched tadpoles into a culture chamber for culture;
f. and (3) post-incubation treatment: putting the stone plate incubated with the tadpoles into a cleaning box for cleaning, and airing the stone plate for later use;
as shown in fig. 1-9, the rana spinosa hatching device comprises a rana spinosa spawning box 1, a stone slab 2, a hatching box 3 for hatching the rana spinosa spawn, a cleaning box 4 for cleaning the stone slab after hatching the rana spinosa, a culture chamber 5 for culturing hatched tadpoles, a first taking and placing device 6 for putting the stone slab in the hatching box into the hatching box, and a second taking and placing device 7 for putting the stone slab in the cleaning box, wherein the spawning box 1 comprises a box body 11, a partition plate 12 arranged in the box body, an inclined plate 13 positioned at one end of the partition plate and used for increasing the water level, a flat plate 14 positioned at one side of the inclined plate and arranged at the inner side of the partition plate, a water flowing port 15 positioned at the other side of the partition plate, a flow guide plate 16 positioned below the water flowing port and arranged at the inner side of the partition plate, and a one-way flow component 17 positioned; the incubator is communicated with the culture room and is controlled to be communicated and closed through a switch; the baffle is filled with water, the plurality of stone slabs are located on the water surface of the water in the baffle, the one-way flow component is started, the water in the box flows to the baffle from the inclined plate, flows out from the water flow port and flows into the box again to form circulating water, the water in the baffle drives the plurality of stone slabs to move in the flowing process, and the first taking and placing device takes the stone slabs located at the end part and places the stone slabs into the incubator.
Slabstone 2 includes the plate body 21 that the square body set up, locates the viscose layer 22 of plate body upper surface, locates the runner 23 at four angles of plate body, is located the elastic component 24 at plate body both ends, locates the first fixing base 25 of viscose layer top, with the second fixing base 26 of first mount level setting, locate two first bell mouth 27 on the first fixing base, locate two second taper holes 28 on the second fixing base with the same axle center of two first bell mouths on the first fixing base, second taper hole size is greater than first bell mouth, and after the box inner wall was touch to the slabstone, runner and inner wall contact.
The first taking and placing device structure is the same as the second taking and placing device structure; the first taking and placing device 6 comprises a lifting frame 61, a fixed plate 62 arranged on the lifting frame, two sliding grooves 63 arranged at the lower end of the lifting frame, a moving seat 64 arranged on the sliding grooves, two conical insertion rods 65 fixedly arranged on the moving seat and used for inserting a first conical hole and a second conical hole, a screw rod 66 positioned between the two conical insertion rods and penetrating through the moving seat, and a first motor 67 fixedly arranged on the fixed rod plate and used for driving the screw rod to rotate, wherein the lifting frame drives the fixed plate to move to the bottom end, the first motor starts the screw rod to rotate, the moving seat moves towards the direction of a stone plate, the two conical insertion rods are inserted into the first conical hole and the second conical hole on the first fixed seat and the second fixed seat, the first motor stops rotating, after the highest position of the lifting frame is lifted, the first motor is started again to drive the moving seat to continue to move to, the slabstone is located the incubator surface of water, and the first motor antiport in the back is removed to the slabstone to the water that flows in the incubator, removes the seat and removes to first motor direction, and the crane drives the whole bottommost that descends of fixed plate, accomplishes getting of a slabstone and puts work, repeats above-mentioned step, accomplishes getting of a plurality of slabstones and puts work.
The structure of the cleaning box 4 is the same as that of the spawning box, the cleaning box further comprises a first rolling brush 41, a second rolling brush 42 horizontally arranged with the first rolling brush, a pinion 43 arranged at one end of the first rolling brush, a bull gear 44 meshed with the pinion and arranged at one end of the second rolling brush, a second motor 45 used for driving the pinion to rotate, a flow delaying plate 46 arranged at a water flow opening of the cleaning box, a filter screen 47 which is positioned below the flow delaying plate and can rotate circularly, a plurality of air jet pieces 48 arranged on the inner side of the filter screen, and a collecting box 49 used for collecting impurities, the second motor is started to drive the pinion to rotate, the pinion is meshed with the bull gear to drive the bull gear to rotate, and therefore the first rolling brush and the second rolling brush are driven to rotate relatively; the filter screen runs, the water flowing down from the flow extending plate is filtered, the air injection piece cleans the filter screen, and impurities on the filter screen are blown into the collection box; the collecting box is provided with an air outlet, so that sundries are prevented from blowing into the collecting box to generate reverse wind force, and the sundries are more easily blown into the collecting box.
The first motor and the second motor are commercially available.

Claims (1)

1. A stone frog hatching method adopts a stone frog hatching device, and is characterized in that: the method comprises the following steps:
a. preparing before hatching: oxygenating the water body by using an aerator, and controlling the water temperature to be 20-22 ℃;
b. placing a spawning stone plate: putting the stone slabs into a spawning box, wherein each stone slab floats on the surface of a water body;
c. taking a stone slab for incubation: 1-2, after the spawns of the rana amurensis frogs are fully collected with the stone plate, the whole spawning stone plate can be moved to an incubator;
d. hatching: controlling the temperature of the water body of the incubator at 22-28 ℃, and completing incubation of the batch of Rana spinosa eggs within 10-15 days;
e. culturing: putting the hatched tadpoles into a culture chamber for culture;
f. and (3) post-incubation treatment: putting the stone plate incubated with the tadpoles into a cleaning box for cleaning, and airing the stone plate for later use;
wherein, the stone frog hatching equipment comprises a stone frog spawning box (1), a stone slab (2), a hatching box (3) for hatching the stone frog spawn, a cleaning box (4) for cleaning the stone slab after hatching the stone frog, a culture chamber (5) for culturing hatched tadpoles, a first taking and placing device (6) for putting the stone slab in the spawning box into the hatching box, a second taking and placing device (7) for putting the stone slab in the hatching box into the cleaning box, the spawning box (1) comprises a box body (11), a clapboard (12) arranged in the box body, an inclined plate (13) arranged at one end of the clapboard for increasing the water level, a flat plate (14) arranged at one side of the inclined plate and arranged at the inner side of the clapboard, a water flowing port (15) arranged at the other side of the clapboard, a guide plate (16) arranged at the inner side of the clapboard and below the water flowing port, and a one-way flow component, the partition board is filled with water, the plurality of stone slabs are positioned on the water surface of water in the partition board, the one-way flow component is started, water in the box body flows into the partition board from the inclined plate, flows out from the water flow port and then flows into the box body to form circulating water, the plurality of stone slabs are driven to move in the flowing process of the water in the partition board, and the stone slabs positioned at the end part are taken by the first taking and placing device and placed in the incubator;
the stone plate (2) comprises a plate body (21) arranged in a square body, a viscose layer (22) arranged on the upper surface of the plate body, rotating wheels (23) arranged at four corners of the plate body, elastic pieces (24) positioned at two ends of the plate body, a first fixing seat (25) arranged above the viscose layer, a second fixing seat (26) horizontally arranged with the first fixing seat, two first conical holes (27) arranged on the first fixing seat, and two second conical holes (28) arranged on the second fixing seat in the same axis with the two first conical holes on the first fixing seat, wherein the size of the second conical holes is larger than that of the first conical holes, and after the stone plate touches the inner wall of the box body, the rotating wheels contact with the;
and e, controlling the water temperature in the culture in the step e to be 20-24 ℃, feeding protein powder and feed every day to obtain the rana spinosa froglets, wherein the feed comprises the following components: 11-14 parts of dry earthworm powder, 5-8 parts of Chinese alpine rush, 5-7 parts of yellow mealworm and 20-25 parts of mung bean powder;
the first taking and placing device (6) comprises a lifting frame (61), a fixed plate (62) arranged on the lifting frame, two sliding grooves (63) arranged at the lower end of the lifting frame, a moving seat (64) arranged on the sliding grooves, two conical inserting rods (65) fixedly arranged on the moving seat and used for inserting a first conical hole and a second conical hole, a screw rod (66) positioned between the two conical inserting rods and penetrating the moving seat, and a first motor (67) fixedly arranged on the fixed plate and used for driving the screw rod to rotate, wherein the lifting frame drives the fixed plate to move to the bottommost end, the first motor starts the screw rod to rotate, the moving seat moves towards the direction of the stone plate, the two conical inserting rods are inserted into the first conical hole and the second conical hole on the first fixed seat and the second fixed seat, the first motor stops rotating, the first motor is started again after the lifting frame rises to the highest position, the lifting frame descends for a certain distance, the stone slabs are located on the water surface of the incubator, the first motor rotates reversely after the stone slabs are moved away by flowing water in the incubator, the moving seat moves towards the first motor, the lifting frame drives the fixing plate to integrally descend to the bottommost end, the taking and placing work of one stone slab is completed, the steps are repeated, and the taking and placing work of a plurality of stone slabs is completed;
the structure of the cleaning box (4) is the same as that of the spawning box, the cleaning box further comprises a first rolling brush (41), a second rolling brush (42) horizontally arranged with the first rolling brush, a pinion (43) arranged at one end of the first rolling brush, a gear wheel (44) meshed with the pinion and arranged at one end of the second rolling brush, a second motor (45) used for driving the pinion to rotate, a flow delaying plate (46) arranged at a water outlet of the cleaning box, a filter screen (47) which is positioned below the flow delaying plate and can rotate circularly, a plurality of air injection pieces (48) arranged on the inner side of the filter screen, and a collecting box (49) used for collecting impurities, the second motor is started to drive the pinion to rotate, and the pinion is meshed with the gear wheel to drive the gear wheel to rotate, so that the first rolling brush and the second rolling brush are driven to; the filter screen operation filters the water that the board flowed down of delaying flowing, and jet-propelled piece is to the filter screen clearance, blows in the collection box with the impurity on the filter screen.
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JP2019199510A JP6736806B1 (en) 2019-08-30 2019-11-01 Frog hatching device and hatching method using the same

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