CN217694949U

CN217694949U - Large-scale negative-pressure chrysomyia megacephala fly maggot breeding box

Info

Publication number: CN217694949U
Application number: CN202123302268.5U
Authority: CN
Inventors: 谢桂林; 李冬; 王新计; 金鑫; 李春满
Original assignee: Heilongjiang Soke Zhaojie Technology Development Co ltd
Current assignee: Heilongjiang Soke Zhaojie Technology Development Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-11-01
Anticipated expiration: 2031-12-20

Abstract

Scale negative pressure chrysomyia megacephala maggot breeds case belongs to animal breeding scientific and technical field, by case lid (1), box (2), aquaculture net case (6), net case prop up platform (9), air guide baffle (10), negative pressure chamber (11), suction chamber (12), aspirator pump (14), dissolve air water tank (16), adsorb chamber (19), air duct (21), supporting baffle (22) and constitute its characterized in that: the four peripheral walls and the bottom wall of the box body (2) are box body walls (4), a plurality of supporting partition plates (22) are arranged on the upper surface of the bottom wall of the box body walls (4), and the supporting partition plates (22), the bottom wall of the box body walls (4) and the air guide partition plates (10) divide the lower part of the box body cavity (5) into a plurality of spaces including a negative pressure cavity (11), an air suction cavity (12) and an adsorption cavity (19); the aquaculture net cage (6) is placed on the net cage supporting platform (9). The invention has the advantages of simple manufacture, strong operability, low cost and obvious effect.

Description

Large-scale negative-pressure chrysomyia megacephala fly maggot breeding box

Technical Field

The invention relates to a large-scale negative-pressure chrysomyia megacephala maggot breeding box, and belongs to the technical field of animal breeding science.

Background

The fly maggots are high-quality feed, the feeding cost can be reduced, and the breeding benefit is improved. The fly maggots contain rich antibacterial active substances, so that the livestock, poultry and aquatic products are healthy and active and can resist disease invasion after being fed with livestock, poultry and aquatic products, and the fly maggots can be widely applied to the production of the livestock, poultry and aquatic products. In a fly room with 1 cubic meter, if the number of adult flies is more than 4000, 5 to 8 grams of eggs can be laid per day, and the weight of larvae hatched from the eggs can reach 1.5 to 2.4 kilograms. That is, the more eggs, the greater the yield of fly maggots, and the higher the profit of raising fly maggots. In the process of breeding the fly maggots, the yield of the fly maggots is directly related to the number and the monomer weight of the fly maggots, the more the number of the fly maggots is, the higher the survival rate is, the higher the yield is, and the larger the heads of the fly maggots are, the higher the yield of the fly maggots is. In the actual large-scale production, how to enable the fly maggots to have high survival rate and large heads so as to increase the yield of the fly maggots becomes a great problem which is urgently needed to be solved and restricts the fly maggot breeding. Therefore, according to the living habits of Chrysomya megacephala maggots, the most critical guarantee is to ensure the air quality in the fly maggot growing environment as soon as possible during large-scale cultivation, if a negative pressure space is formed below the cultivation net cage by using the suction pump, the cultivation substrate and the gas generated in the fly maggot growing process are pumped completely at any time, and the fly maggots are enabled to grow in a space with fresh and good air all the time, the purpose that the Chrysomya megacephala maggots can be high in survival rate and large in size so as to increase the yield of the fly maggots can be achieved, and the invention of the large-scale negative pressure Chrysomya maggot cultivation box is necessary.

Disclosure of Invention

In order to overcome the problem, the invention provides the large-scale negative-pressure Chrysomya megacephala and fly maggot breeding box, according to the living habits of Chrysomya megacephala and fly maggots, when in large-scale breeding, the quality of air in a fly maggot growth environment is guaranteed to be the most critical guarantee as soon as possible, a negative pressure space is formed below a breeding net box by using an air suction pump, the breeding substrate and the gas generated in the fly maggot growth process are sucked completely at any time, the fly maggots are enabled to grow in a good space all the time, and finally the aim of enabling the Chrysomya megacephala and fly maggots to be high in survival rate and large in size so as to increase the yield of the fly maggots is fulfilled.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the invention relates to a large-scale negative-pressure chrysomyia megacephala maggot breeding box, which consists of a box cover 1, a box body 2, a breeding net box 6, a breeding net box wall 7, a breeding net box cavity 8, a net box supporting platform 9, an air guide clapboard 10, a negative pressure cavity 11, an air suction cavity 12, an air suction pump 14, a dissolved air water tank 16, an adsorption cavity 19, an air guide pipe 21 and a support clapboard 22, and is characterized in that: the box body 2 is used for placing a breeding net box 6, a net box support 9, an air guide partition plate 10, an air suction pump 14, a dissolved air water tank 16 and a support partition plate 22 and is used for breeding maggots and forming a structure of a negative pressure breeding environment, the peripheral wall and the bottom wall of the box body 2 are box walls 4, the box body 2 is not provided with a top wall, a cavity enclosed by the box walls 4 is a box body cavity 5, and the box body walls 4 are made of plastics, stainless steel or aluminum alloy and have the thickness of 3-10 mm; the whole box body 2 is cuboid, the cuboid length of the box body 2 is 30-150 cm, the width is 20-100 cm, the height is 10-30 cm, a plurality of supporting partition plates 22 are arranged on the upper surface of the bottom wall of the box body wall 4, the supporting partition plates 22 are erected on the lower part of the box body 2, and the lower part of the box body 2 is divided into a plurality of spaces of a negative pressure cavity 11, an air suction cavity 12 and an adsorption cavity 19 together with the bottom wall of the box body wall 4 and the air guide partition plate 10; each supporting clapboard 22 is made of plastic, stainless steel or aluminum alloy, and the thickness is 3-10 mm; an air guide partition plate 10 is placed above the support partition plate 22, a net cage support table 9 is arranged at the position, 3-5 cm away from the upper surface of the bottom wall, of the inner surface of the box body wall 4 on the periphery above the air guide partition plate 10, the aquaculture net cage 6 is placed on the net cage support table 9, and the distance between the aquaculture net cage 6 and the upper surface of the air guide partition plate 10 is 0.5-1 cm after the aquaculture net cage 6 is placed on the net cage support table 9.

The box cover 1 is a cover at the top of the large-scale negative-pressure big-head chrysomyia fly maggot breeding box, is positioned at the top of the box body 2, and is covered at the back of the top of the box body 2, the box cover 1 is integrally cuboid-shaped, the length of a cuboid in an inner cavity of the box cover 1 is 30-150 cm, the width of the cuboid is 20-100 cm, the height of the cuboid is 3-5 cm, the box cover 1 is made of paper, plastic, stainless steel or aluminum alloy, and is provided with a top wall and peripheral side walls, no bottom wall exists, the thickness of the top wall and the peripheral side walls is 1-5 mm, and 1 escape-proof air inlet window 3 is arranged in the center of the top wall of the box cover 1; the escape-proof air inlet window 3 is rectangular, the length of the rectangle is 5-25 cm, the width of the rectangle is 4-20 cm, and the mesh number of the used gauze is 100-200 meshes.

The negative pressure cavity 11, the air suction cavity 12 and the adsorption cavity 19 are all spaces located below the air guide partition plate 10 and are enclosed by the bottom wall of the box body wall 4, the supporting partition plate 22 and the air guide partition plate 10, wherein the negative pressure cavity 11 is located below the porous area 30 of the air guide partition plate 10, and the air suction cavity 12 and the adsorption cavity 19 are located below the non-porous area 29 of the air guide partition plate 10; a getter pump 14 is arranged in the getter chamber 12; the air suction pump 14 is communicated with the negative pressure cavity 11 through an air suction pipe 13, and the air suction pump 14 is communicated with the adsorption cavity 19 through an air injection pipe 15; the power for getter pump 14 is provided by getter pump power cord 23 and getter pump power cord plug 24; the gas injection pipe 15 is a round pipe with a smooth inner cavity, is communicated with the gas suction cavity 12 and the adsorption cavity 19, has one end connected to the gas suction pump 14 and the other end bent downwards at the gas dissolving water tank 16, and has the lower end immersed in the water in the gas dissolving water tank 16; the adsorption cavity 19 is divided into two parts by a supporting clapboard 22, the front half part is internally provided with a dissolved air water tank 16, the rear half part is internally provided with adsorption materials such as active carbon and the like, and the two parts are communicated through an air duct 21; the water in the dissolved air water tank 16 is provided by a water inlet pipe 18, the water inlet pipe 18 is externally connected with a tap water pipe for household use, when the dissolved air water tank 16 needs to be added with water, the water inlet pipe 18 is connected with the tap water pipe by a leather hose, the water can be added into the dissolved air water tank 16, and after the dissolved air water tank 16 works for a period of time, the water in the dissolved air water tank 16 is discharged through a water discharge pipe 17; the filling opening 20 is rectangular, and the length of the filling opening 20 is 5-10 cm, and the width of the filling opening 20 is 2-4 cm; the exhaust hole 31 is a round hole on the side wall of the box body 2, and the aperture is 1-3 cm.

The culture net cage 6 is a structure for placing fly eggs, meat slices and wheat bran with the humidity of 70% for the fly eggs to hatch into fly maggots and can ensure the normal and rapid growth of the fly maggots; the meat slices are muscle meat slices of all animals, and the thickness of the meat slices is 1-10 mm; the whole body of the aquaculture net cage 6 is cuboid, the cuboid length of the aquaculture net cage 6 is 28-145 cm, the width is 18-95 cm, and the height is 5-10 cm, and the aquaculture net cage 6 comprises an aquaculture net cage support 26, an aquaculture net cage wall 7, an aquaculture net cage cavity 8 and a feed inlet seal 25; the cultivation net cage brackets 26 are made of aluminum alloy or stainless steel, are solid, have circular cross sections, and have the diameter of 3-10 mm, and 8-12 cultivation net cage brackets, wherein the 8 cultivation net cage brackets 26 of the cultivation net cage 6 are connected together at eight corners by mutually vertical tee joints to support the whole cultivation net cage 6 into a cuboid shape; the cultivation net box wall 7 is a cuboid net box made of 100-150 mesh window screens through sewing, and the center of the top wall of the cultivation net box wall 7 is provided with 1 feed inlet seal 25; the feed seal 25 may have a variety of configurations; the breeding net cage cavity 8 is a space surrounded by the breeding net cage walls 7, the three-dimensional breeding net cage 6 can be manufactured after the breeding net cage bracket 26 is spliced with the tee joint in the breeding net cage cavity 8, and negative pressure breeding can be performed after substrates and baits for breeding fly maggots are placed in the breeding net cage cavity 8 and maggot eggs are placed; the arranged aquaculture net cage 6 is placed on the net cage supporting platform 9; the net cage supporting table 9 is arranged at the position, 3-5 cm away from the upper surface of the bottom wall, of the inner surface of the surrounding box wall 4 above the air guide partition plate 10, the cross section of the net cage supporting table 9 is an isosceles right triangle, the inclined edge of the isosceles right triangle faces the upper side, a right-angle side is tightly attached to the inner surface of the box wall 4, the length of the right-angle side is 3-5 cm, the net cage supporting table 9 is adhered to the box wall 4 through strong adhesive, the net cage supporting table 9 is fixed by a screw every 10 cm, and the net cage supporting table 9 is firmly connected with the box wall 4.

The air guide partition plate 10 is a flat plate which vertically separates the box body cavity 5, is made of plastic, stainless steel or aluminum alloy, the air guide partition plate 10 is integrally rectangular, the length of the rectangular body of the air guide partition plate 10 is 29.4-148 cm, the width of the rectangular body is 19.4-98 cm, the thickness of the rectangular body is 3-10 mm, the rectangular body is divided into a non-hole area 29 and a hole area 30, the non-hole area 29 and the hole area 30 are separated at the long side of the sealing rubber strip 28 close to the hole area 30, the non-hole area 29 is not provided with the air guide holes 27, the hole area 30 is provided with a plurality of air guide holes 27, the distance between every two adjacent air guide holes 27 is 1-2 cm, each air guide hole 27 is a cylindrical hole, the diameter of the cross section of each air guide hole 27 is 0.5-1 cm, and the space below the hole area 30 is a negative pressure cavity 11; after the air guide partition plate 10 is placed on the supporting partition plate 22, the periphery of the air guide partition plate 10 is sealed by glass cement, so that the periphery of the air guide partition plate 10 is tightly connected with the peripheral side walls of the box body wall 4 without gaps; the bead 28 is commercially available double-sided butyl tape and is disposed above the location where the lower surface of the air directing baffle 10 supports the baffle 22.

The invention has the advantages that the large-scale negative-pressure Chrysomya megacephala and fly maggot cultivation box ensures the air quality in a fly maggot growth environment as critical as possible in large-scale cultivation according to living habits of the Chrysomya megacephala and fly maggots, a negative-pressure space is formed below the cultivation net box by using the air suction pump, the cultivation substrate and the air generated in the fly maggot growth process are sucked completely at any time, the fly maggots are enabled to grow in a space with fresh and good air all the time, and finally the purpose of enabling the Chrysomya megacephala and fly maggots to have high survival rate and large heads so as to increase the yield of the fly maggots is achieved. The invention has the advantages of simple manufacture, strong operability, low cost and obvious effect.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of a large-scale negative-pressure Chrysomya megacephala fly maggot breeding box.

FIG. 2 is a schematic view of the overall structure of a net cage of the large-scale negative-pressure Chrysomya megacephala fly maggot breeding box.

FIG. 3 is a schematic view of the whole structure of the air guide partition plate of the large-scale negative-pressure Chrysomya megacephala fly maggot breeding box.

In the drawing, 1, a box cover, 2, a box body, 3, an escape-proof air inlet window, 4, a box body wall, 5, a box body cavity, 6, a cultivation net box, 7, a cultivation net box wall, 8, a cultivation net box cavity, 9, a net box support table, 10, an air guide partition plate, 11, a negative pressure cavity, 12, an air suction cavity, 13, an air suction pipe, 14, an air suction pump, 15, an air jet pipe, 16, a dissolved air water tank, 17, a water discharge pipe, 18, a water inlet pipe, 19, an adsorption cavity, 20, a filling opening, 21, an air guide pipe, 22, a support partition plate, 23, an air suction pump power line, 24, an air suction pump power line plug, 25, a feeding opening seal, 26, a cultivation net box support, 27, an air guide hole, 28, a seal rubber strip, 29, a non-hole area, 30, a porous area and 31, and an air vent hole.

Detailed Description

The first embodiment is as follows:

as shown in the figure, the scale negative pressure chrysomyia megacephala maggot breeding box comprises a box cover 1, a box body 2, an escape-proof air inlet window 3, a box body wall 4, a box body cavity 5, a breeding net box 6, a breeding net box wall 7, a breeding net box cavity 8, a net box support 9, an air guide partition plate 10, a negative pressure cavity 11, an air suction cavity 12, an air suction pipe 13, an air suction pump 14, an air jet pipe 15, an air dissolving water tank 16, a drain pipe 17, a water inlet pipe 18, an adsorption cavity 19, a filling opening 20, an air guide pipe 21, a support partition plate 22, an air suction pump power line 23, an air suction pump power line plug 24, a feeding opening seal 25, a breeding net box support 26, an air guide hole 27, a seal rubber strip 28, a non-hole area 29, a hole area 30 and an exhaust hole 31. The box cover 1 is a cover at the top of the large-scale negative-pressure big-head chrysomyia fly maggot breeding box, is positioned at the top of the box body 2, and can be tightly buckled with the top of the box body 2 after covering the top of the box body 2 to prevent fly maggots or gas from passing through a gap between the box cover 1 and the box body 2, the box cover 1 is integrally cuboid-shaped, the cuboid in the inner cavity of the box cover 1 is 30-150 cm long, 20-100 cm wide and 3-5 cm high, the box cover 1 is made of paper, plastic, stainless steel or aluminum alloy, and has a top wall and peripheral side walls without a bottom wall, the thickness of the top wall and the peripheral side walls is 1-5 mm, and the center of the top wall of the box cover 1 is provided with 1 escape-proof air inlet window 3. The escape-proof air inlet window 3 is rectangular, the length of the rectangle is 5-25 cm, the width of the rectangle is 4-20 cm, when the escape-proof air inlet window is manufactured, a rectangular hole with the length of 5-25 cm and the width of 4-20 cm is dug out in the center of the top wall of the box cover 1, then a gauze with the area larger than the area of the hole is adhered to the periphery of the hole by using glue, the mesh number of the used gauze is 100-200 meshes, and therefore the rectangular hole is covered, the hole can be sealed, maggots are prevented from escaping, and outside fresh air can enter the box body cavity 5. The box body 2 is used for placing a breeding net box 6, a net box support platform 9, an air guide partition plate 10, an air suction pump 14, a dissolved air water tank 16 and a support partition plate 22 and is used for breeding fly maggots and forming a structure of a negative pressure breeding environment, the peripheral wall and the bottom wall of the box body 2 are box body walls 4, the box body 2 is not provided with a top wall, a cavity enclosed by the box body walls 4 is a box body cavity 5, and the box body walls 4 are made of plastic, stainless steel or aluminum alloy and are 3-10 mm thick. The box body 2 is in a cuboid shape as a whole, the cuboid of the box body 2 is 30-150 cm in length, 20-100 cm in width and 10-30 cm in height, a plurality of supporting partition plates 22 are arranged on the upper surface of the bottom wall of the box body wall 4, the supporting partition plates 22 are erected at the lower part of the box body 2, and the lower part of the box body 2 is divided into a plurality of spaces including a negative pressure cavity 11, an air suction cavity 12 and an adsorption cavity 19 together with the bottom wall of the box body wall 4 and the air guide partition plate 10; each supporting clapboard 22 is made of plastic, stainless steel or aluminum alloy and has the thickness of 3-10 mm; an air guide partition plate 10 is placed above the support partition plate 22, a net cage support platform 9 is arranged at a position, 3-5 cm away from the upper surface of the bottom wall, of the inner surface of the box wall 4 on the periphery above the air guide partition plate 10, the aquaculture net cage 6 is placed on the net cage support platform 9, the distance between the air guide partition plate 10 and the upper surface of the air guide partition plate 10 is 0.5-1 cm after the aquaculture net cage 6 is placed on the net cage support platform 9, the air guide partition plate 10 can support the bottom wall of the aquaculture net cage 6 after the bottom wall of the aquaculture net cage 6 is pressed downwards, therefore, even if the bottom wall of the aquaculture net 6 is pressed downwards after feed or fly maggots are placed in the aquaculture net cage 6, the bottom wall of the aquaculture net 6 cannot be crushed due to pressure, and meanwhile, when the pump 14 is used for forming negative pressure, gas in the aquaculture net 6 can be smoothly and timely pumped away. The culture net cage 6 is a structure for placing fly eggs, meat slices and wheat bran with the humidity of 70 percent for the fly eggs to hatch into fly maggots and can ensure the normal and rapid growth of the fly maggots; the meat slices are muscle meat slices of all animals, and the thickness of the meat slices is 1-10 mm; the aquaculture net cage 6 is integrally cuboid, the cuboid length of the aquaculture net cage 6 is 28-145 cm, the width of the aquaculture net cage 6 is 18-95 cm, and the height of the aquaculture net cage 6 is 5-10 cm, and the aquaculture net cage 6 comprises an aquaculture net cage support 26, an aquaculture net cage wall 7, an aquaculture net cage cavity 8 and a feed port seal 25. The cultivation net cage supports 26 are made of aluminum alloy or stainless steel, solid, circular in cross section, and 8-12 in total, wherein 8 cultivation net cage supports 26 of the cultivation net cage 6 are connected together at eight corners by mutually perpendicular tee joints to support the whole cultivation net cage 6 into a cuboid shape, and when the length of the cultivation net cage 6 is less than 50 cm and the width of the cultivation net cage 6 is less than 30 cm, 8 cultivation net cage supports 26 are made of aluminum alloy or stainless steel; when the length of the aquaculture net cage 6 is less than 100 cm and the width is less than 60 cm, 10 aquaculture net cage supports 26 are arranged; when the length of the aquaculture net cage 6 is 100-145 cm and the width is 60-95 cm, 12 aquaculture net cage supports 26 are arranged; along with the increase of the volume of the aquaculture net cage supports 26, a plurality of aquaculture net cage supports 26 are additionally arranged on the bottom wall of the aquaculture net cage 6 and are connected together by a tee joint fixed on the bottom edge aquaculture net cage supports 26, the tee joint is arranged on a plane, two through pipes are 180 degrees and penetrate through the bottom edge aquaculture net cage supports 26, the other through pipe is perpendicular to the two through pipes, the two tee joints are oppositely arranged on the aquaculture net cage supports 26 corresponding to the bottom wall of the aquaculture net cage 6, 4-8 aquaculture net cage supports 26 on the bottom wall of the aquaculture net cage 6 enable the bottom wall of the aquaculture net cage 6 to have strong supporting force, the aquaculture net cage walls 7 at the bottom of the aquaculture net cage 6 can be effectively prevented from falling down, gaps between the aquaculture net cage 6 and the air guide partition plates 10 are kept, and air can be smoothly circulated. The cultivation net box wall 7 is a cuboid net box made of 100-150 mesh window screens through sewing, and the center of the top wall of the cultivation net box wall 7 is provided with 1 feed inlet seal 25; the feed port seal 25 can have various structures, for example, a commercially available strong back adhesive magic tape is used, the length of the feed port seal 25 is 20-120 cm, the width of the feed port seal 25 is 2-5 cm, and the feed port seal is composed of hooks and hairs, when the feed port seal is manufactured, a gap with the length of 20-120 cm is cut in the center of the top wall of the aquaculture net box wall 7, a wool strip of the feed port seal 25 is fixed on one side wall of the gap, then one side of the hook strip of the feed port seal 25 is fixed on the other side wall of the gap, so that the hook strip of the feed port seal 25 is pressed on the wool strip of the feed port seal 25, the gap can be closed, and the feed port seal 25 is pulled open, so that an opening can be formed; the sealing strip 25 of the feeding port can also adopt a zipper structure, when in manufacturing, a U-shaped crack is firstly cut on the top wall of the wall 7 of the aquaculture net box, the zipper is fixed on the crack, the crack can be opened by unzipping the zipper, and the crack can be closed by zipping the zipper; the breeding net cage cavity 8 is a space surrounded by the breeding net cage walls 7, the three-dimensional breeding net cage 6 can be manufactured after the breeding net cage support 26 is spliced with the tee joint in the breeding net cage cavity 8, and negative pressure breeding can be performed after substrates and baits for breeding fly maggots are placed in the breeding net cage cavity 8 and maggot eggs are placed. The arranged aquaculture net cage 6 is placed on the net cage support 9. The net cage support 9 is arranged at the position, above the air guide partition plate 10, of the inner surface of the peripheral box wall 4, 3-5 cm away from the upper surface of the bottom wall, the cross section of the net cage support 9 is an isosceles right triangle, the hypotenuse of the isosceles right triangle faces the upper side, a right-angle side is tightly attached to the inner surface of the box wall 4, the length of the right-angle side is 3-5 cm, the net cage support 9 is adhered to the box wall 4 through strong adhesive, the net cage support 9 is fixed by a screw every 10 cm, and the net cage support 9 is firmly connected with the box wall 4. The air guide partition plate 10 is a flat plate which vertically separates the box body cavity 5, is made of plastic, stainless steel or aluminum alloy, the air guide partition plate 10 is integrally rectangular, the length of the rectangular body of the air guide partition plate 10 is 29.4-148 cm, the width of the rectangular body is 19.4-98 cm, the thickness of the rectangular body is 3-10 mm, the rectangular body is divided into a non-hole area 29 and a hole area 30, the non-hole area 29 and the hole area 30 are separated at the long edge of the sealing rubber strip 28 close to the hole area 30, the non-hole area 29 is not provided with an air guide hole 27, the hole area 30 is provided with a plurality of air guide holes 27, the distance between every two adjacent air guide holes 27 is 1-2 cm, each air guide hole 27 is a cylindrical hole, the diameter of the cross section of each air guide hole 27 is 0.5-1 cm, the air guide holes 27 have the function of allowing air to pass through, and the space below the hole area 30 is a negative pressure cavity 11; after the air guide partition plate 10 is placed on the supporting partition plate 22, the periphery of the air guide partition plate 10 is sealed by glass cement, so that the periphery of the air guide partition plate 10 is tightly connected with the peripheral side walls of the box body wall 4 without gaps. The sealing rubber strip 28 is a commercially available double-sided butyl tape, and is disposed above the position where the lower surface of the air guide partition plate 10 supports the partition plate 22, and when the air guide partition plate is installed, the protective film on one surface is peeled off, and is firstly adhered to the lower surface of the air guide partition plate 10, and then the protective film on the other surface is peeled off, so that the air guide partition plate 10 and the support partition plate 22 are tightly connected together, and simultaneously, the sealing effect is achieved. The negative pressure cavity 11, the air suction cavity 12 and the adsorption cavity 19 are all spaces located below the air guide partition plate 10 and are surrounded by the bottom wall of the box body wall 4, the supporting partition plate 22 and the air guide partition plate 10, wherein the negative pressure cavity 11 is located below the porous area 30 of the air guide partition plate 10, and the air suction cavity 12 and the adsorption cavity 19 are located below the non-porous area 29 of the air guide partition plate 10; the suction pump 14 is arranged in the suction cavity 12, the structure and the function of the suction pump 14 are the same as those of the suction pump sold in the market, the suction pump 14 generates suction under the action of electric power, air in the box body cavity 5 is sucked into the suction cavity 19 for purification treatment, meanwhile, negative pressure is formed in the negative pressure cavity 11 due to the suction of the suction pump 14, so that waste gas generated by the growth of the fly maggots in the culture net box 6 and odor generated by substrates for culturing the fly maggots along with the time lapse and the feeding of the fly maggots can continuously enter the negative pressure cavity 11, and a good gas environment is provided for the growth of the fly maggots; the air suction pump 14 is communicated with the negative pressure cavity 11 through an air suction pipe 13 and can suck air in the negative pressure cavity 11; the air suction pump 14 is communicated with the adsorption cavity 19 through an air injection pipe 15 and can inject the gas pumped from the negative pressure cavity 11 into a dissolved gas water tank 16; the electric energy of the air suction pump 14 is provided by an air suction pump power line 23, and after an air suction pump power line plug 24 is inserted into an external power socket, the external electric energy can be introduced for the motor of the air suction pump 14 to use; the getter pump power line 23 is a commercially available double-strand copper core power line, the cross section of each strand of copper core is circular, and the diameter of the circle is 1-3 mm; the getter pump power plug 24 is a commercially available three-phase plug that can be plugged into a commercially available socket having a three-phase jack. The gas injection pipe 15 is a round pipe with a smooth inner cavity, the gas injection pipe is communicated with the gas suction cavity 12 and the adsorption cavity 19, one end of the gas injection pipe is connected to the gas suction pump 14, the other end of the gas injection pipe is bent downwards at the gas dissolving water tank 16, the lower end of the gas injection pipe is immersed in the water in the gas dissolving water tank 16, and the gas sucked by the gas suction pump 14 is injected into the water in the gas dissolving water tank 16 under the action of the gas suction pump 14, so that the gas such as ammonia gas and the like generated in the process of feeding the fly maggots is easily dissolved in the water, and most of the gas sucked by the gas suction pump 14 can be adsorbed after passing through the gas dissolving water tank 16; the adsorption cavity 19 is divided into two parts by a supporting clapboard 22, the front half part is internally provided with a dissolved air water tank 16, the rear half part is internally provided with adsorption materials such as active carbon and the like, and the two parts are communicated through an air duct 21; the water in the dissolved air water tank 16 is provided by a water inlet pipe 18, the water inlet pipe 18 is externally connected with a household tap water pipe, when the dissolved air water tank 16 needs to be added with water, a leather hose is used for connecting the water inlet pipe 18 with the tap water pipe, so that the water can be added into the dissolved air water tank 16, after the dissolved air water tank 16 works for a period of time, the water in the dissolved air water tank 16 is discharged through a drain pipe 17, therefore, the gas can be primarily filtered after passing through the dissolved air water tank 16, and the gas dissolved in the water is basically and completely intercepted; the gas which is not intercepted by the gas dissolving water tank 16 and the purified gas further go backwards along the gas guide pipe 21 and reach the adsorbing material such as activated carbon for further filtration and purification, the adsorbing material such as activated carbon is filled into the rear half part of the adsorption cavity 19 through a filling opening 20 positioned on the side wall of the box body 2, and the gas which is filtered and purified by the adsorbing material such as activated carbon is discharged out of the box body 2 through the exhaust hole 31; the filling opening 20 is rectangular, and the length of the filling opening 20 is 5-10 cm, and the width of the filling opening 20 is 2-4 cm; the exhaust hole 31 is a round hole on the side wall of the box body 2, and the aperture is 1-3 cm.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be appreciated by those skilled in the art that the present invention is not limited by the embodiments described above, which are presented in the description to illustrate the principles of the invention. Various changes and modifications may be made without departing from the spirit and scope of the invention, which is to be determined from the appended claims and their equivalents.

Claims

1. Scale negative pressure big head gold fly maggot breeds case comprises case lid (1), box (2), breed box with a net (6), box with a net prop up platform (9), air guide baffle (10), negative pressure chamber (11), suction chamber (12), aspirator pump (14), dissolved air water tank (16), absorption chamber (19), air duct (21), supporting baffle (22), its characterized in that: the box body (2) is a structure for placing a breeding net box (6), a net box support platform (9), an air guide partition plate (10), an air suction pump (14), an air dissolving water tank (16) and a support partition plate (22) and is used for breeding fly maggots and forming a negative pressure breeding environment, the peripheral wall and the bottom wall of the box body (2) are box body walls (4), the box body (2) does not have a top wall, a cavity surrounded by the box body walls (4) is a box body cavity (5), the box body walls (4) are made of plastic, stainless steel or aluminum alloy, and the thickness is 3-10 mm; the box body (2) is integrally cuboid, the cuboid length of the box body (2) is 30-150 cm, the width is 20-100 cm, and the height is 10-30 cm, a plurality of supporting partition plates (22) are arranged on the upper surface of the bottom wall of the box body wall (4), the supporting partition plates (22) are erected at the lower part of the box body (2), and the lower part of the box body (2) is divided into a plurality of spaces including a negative pressure cavity (11), an air suction cavity (12) and an adsorption cavity (19) together with the bottom wall of the box body wall (4) and the air guide partition plate (10); each supporting clapboard (22) is made of plastic, stainless steel or aluminum alloy, and the thickness is 3-10 mm; an air guide partition plate (10) is arranged above the support partition plate (22), a net cage support table (9) is arranged at the position, 3-5 cm away from the upper surface of the bottom wall, of the inner surface of the box body wall (4) on the periphery above the air guide partition plate (10), the aquaculture net cage (6) is placed on the net cage support table (9), and the distance between the aquaculture net cage (6) and the upper surface of the air guide partition plate (10) is 0.5-1 cm after the aquaculture net cage (6) is placed on the net cage support table (9).

2. The large-scale negative-pressure Chrysomya megacephala maggot breeding box according to claim 1, characterized in that: the box cover (1) is a cover at the top of the large-scale negative-pressure chrysomyia megacephala maggot breeding box and is positioned at the top of the box body (2), the box cover (1) is integrally cuboid-shaped after covering the top of the box body (2), the length of the cuboid in the inner cavity of the box cover (1) is 30-150 cm, the width of the cuboid is 20-100 cm, the height of the cuboid is 3-5 cm, the box cover (1) is made of paper, plastic, stainless steel or aluminum alloy and is provided with a top wall and peripheral side walls without a bottom wall, the thickness of the top wall and the peripheral side walls is 1-5 mm, 1 escape-proof air inlet window (3) is arranged in the center of the top wall of the box cover (1), the escape-proof air inlet window (3) is rectangular, the length of the rectangle is 5-25 cm, the width of the rectangle is 4-20 cm, and the mesh number of used gauze is 100-200 meshes.

3. The large-scale negative-pressure Chrysomya megacephala maggot breeding box according to claim 1, characterized in that: the negative pressure cavity (11), the air suction cavity (12) and the adsorption cavity (19) are all spaces located below the air guide partition plate (10) and are surrounded by the bottom wall of the box body wall (4), the supporting partition plate (22) and the air guide partition plate (10), wherein the negative pressure cavity (11) is located below a porous area (30) of the air guide partition plate (10), and the air suction cavity (12) and the adsorption cavity (19) are located below a non-porous area (29) of the air guide partition plate (10); a suction pump (14) is arranged in the suction cavity (12); the air suction pump (14) is communicated with the negative pressure cavity (11) through an air suction pipe (13), and the air suction pump (14) is communicated with the adsorption cavity (19) through an air injection pipe (15); the power of the getter pump (14) is provided by a getter pump power line (23) and a getter pump power line plug (24); the air injection pipe (15) is a round pipe with a smooth inner cavity, the air injection pipe is communicated with the air suction cavity (12) and the adsorption cavity (19), one end of the air injection pipe is connected to the air suction pump (14), the other end of the air injection pipe is bent downwards at the air dissolving water tank (16), and the lower end of the air injection pipe is immersed in water in the air dissolving water tank (16); the adsorption cavity (19) is divided into two parts by a supporting clapboard (22), a dissolved air water tank (16) is arranged in the front half part, adsorption materials such as active carbon and the like are placed in the rear half part, and the two parts are communicated through an air duct (21); the water in the dissolved air water tank (16) is provided by a water inlet pipe (18), the water inlet pipe (18) is externally connected with a tap water pipe for household use, when the dissolved air water tank (16) needs to be added with water, the water inlet pipe (18) is connected with the tap water pipe by a leather hose, the water can be added into the dissolved air water tank (16), and after the dissolved air water tank (16) works for a period of time, the water in the dissolved air water tank (16) is discharged by a water discharge pipe (17); the filling opening (20) is rectangular, and the length of the filling opening (20) is 5-10 cm, and the width of the filling opening is 2-4 cm; the exhaust hole (31) is a round hole positioned on the side wall of the box body (2), and the aperture is 1-3 cm.

4. The large-scale negative-pressure Chrysomya megacephala maggot breeding box according to claim 1, characterized in that: the culture net cage (6) is a structure for placing fly eggs, meat slices and wheat bran with the humidity of 70% for the fly eggs to hatch into fly maggots and can ensure the normal and rapid growth of the fly maggots; the meat slices are muscle meat slices of all animals, and the thickness of the meat slices is 1-10 mm; the whole culture net cage (6) is cuboid, the cuboid length of the culture net cage (6) is 28-145 cm, the width is 18-95 cm, and the height is 5-10 cm, and the culture net cage (6) comprises a culture net cage bracket (26), a culture net cage wall (7), a culture net cage cavity (8) and a feed inlet seal (25); the aquaculture net cage brackets (26) are made of aluminum alloy or stainless steel, solid, the cross section of each aquaculture net cage bracket is circular, the diameter of each circle is 3-10 mm, and the number of the circular aquaculture net cage brackets is 8-12, wherein the 8 aquaculture net cage brackets (26) of the aquaculture net cage (6) are connected together at eight corners by means of mutually vertical tee joints, and the whole aquaculture net cage (6) is supported into a cuboid; the cultivation net box wall (7) is a cuboid net box made of 100-150 meshes of window gauze by sewing, and the center of the top wall of the cultivation net box wall (7) is provided with 1 feed inlet seal (25); the feed inlet seal (25) can have various structures; the breeding net cage cavity (8) is a space surrounded by the walls (7) of the breeding net cage, the three-dimensional breeding net cage (6) can be manufactured after the breeding net cage bracket (26) is spliced with the tee joint in the breeding net cage cavity (8), and after the matrix and the bait for breeding the fly maggots are placed in the breeding net cage cavity (8), maggot eggs are placed, and negative pressure breeding can be carried out; the arranged aquaculture net cage (6) is placed on the net cage supporting platform (9); the net cage supporting platform (9) is arranged at the position, above the air guide partition plate (10), of the inner surface of the peripheral box wall (4) and 3-5 cm away from the upper surface of the bottom wall, the cross section of the net cage supporting platform is an isosceles right triangle, the inclined edge of the isosceles right triangle faces the upper side, a right-angle edge is tightly attached to the inner surface of the box wall (4), the length of the right-angle edge is 3-5 cm, the net cage supporting platform (9) is adhered to the box wall (4) through strong adhesive, and the net cage supporting platform (9) is fixed by a screw every 10 cm, so that the net cage supporting platform (9) is firmly connected with the box wall (4).

5. The large-scale negative-pressure Chrysomya megacephala maggot breeding box according to claim 1, characterized in that: the air guide partition plate (10) is a flat plate for vertically separating the box body cavity (5), is made of plastic, stainless steel or aluminum alloy, and is integrally rectangular, the length of the cuboid of the air guide partition plate (10) is 29.4-148 cm, the width of the cuboid of the air guide partition plate is 19.4-98 cm, the thickness of the cuboid of the air guide partition plate is 3-10 mm, the air guide partition plate is divided into a non-porous area (29) and a porous area (30), the non-porous area (29) and the porous area (30) are separated by a sealing rubber strip (28) close to the long edge of the porous area (30), the non-porous area (29) is not provided with an air guide hole (27), the porous area (30) is provided with a plurality of air guide holes (27), the distance between every two adjacent air guide holes (27) is 1-2 cm, each air guide hole (27) is a cylindrical hole, the diameter of the cross section of each air guide hole (27) is 0.5-1 cm, and the space below the porous area (30) is a negative pressure cavity (11); after the air guide partition plate (10) is placed on the supporting partition plate (22), the periphery of the air guide partition plate is sealed by glass cement, so that the periphery of the air guide partition plate (10) is tightly connected with the peripheral side wall of the box body wall (4) without gaps; the sealing rubber strip (28) is a commercially available double-sided butyl adhesive tape and is arranged above the position where the lower surface of the air guide partition plate (10) supports the partition plate (22).