CN213908022U

CN213908022U - Ecological case of breeding under microgravity environment

Info

Publication number: CN213908022U
Application number: CN202022287887.0U
Authority: CN
Inventors: 唐子沐; 邵思涛; 刘佳杰; 邵雪珂; 王灿旭
Original assignee: Guangzhou Huangpu Huafeng School
Current assignee: Guangzhou Huangpu Huafeng School
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-08-10
Anticipated expiration: 2030-10-14

Abstract

The utility model relates to the technical field of aquaculture in microgravity environment, in particular to an ecological aquaculture box in microgravity environment, which comprises a control device, a box body, a supercharging device, a centrifugal machine and a nutrient supply system, wherein the supercharging device, the centrifugal machine and the nutrient supply system are all electrically connected with the control device; the supercharging device is movably arranged in the box body and combined with the box body to form a sealed cavity with a variable space, the centrifugal machine is fixedly arranged in the sealed cavity, and the nutrient supply system is communicated with the sealed cavity. The utility model discloses a centrifuge destroys the water droplet structure, and pressure boost device makes the pressure increase in the airtight cavity, overcomes water droplet surface tension, makes it fuse and condenses into wholly, increases oxygen solubility simultaneously, is favorable to the aquatic animal to survive under the microgravity environment to form harmonious intergrowth with pasture and water class plant.

Description

Ecological case of breeding under microgravity environment

Technical Field

The utility model relates to a product cultivation technical field under the microgravity environment, more specifically relates to an ecological case of breeding under the microgravity environment.

Background

With the development of aviation technology, the steps of people going to deep space are accelerated, and the problem of overlarge weight of an aircraft caused by carrying enough nutrition supply is obviously unrealistic when people travel for a longer time on the interplanetary, so that the problem of self-supply of fresh and alive materials needs to be solved, a suitable ecological culture device is established in the interplanetary aircraft, and ecological cycle supplement of the materials is realized. In the foreseeable future, the artificial gravity of the whole aircraft is not economical in interstellar navigation, so that the aircraft comprises human beings, animals and plants in ecological devices, and water is in a weightless and vacuum state, the gravity of the water can be ignored because the water is in the weightless state, the surface tension of the water enables the water to be mixed together in a spherical droplet shape, continuous and integral water bodies cannot be naturally formed in containers, but all water droplets are dispersed and exist with gaps, the existence of the gaps is not beneficial to the survival of the animals in the water, the solubility of the oxygen in the vacuum environment is reduced, the oxygen in the water droplets is reduced, and animal eggs and the like in the ecological box can be killed due to oxygen deficiency.

Most of the existing ecological breeding boxes are improved aiming at water circulation, feeding, constant temperature and the like of the breeding boxes, for example, Chinese patent CN108633815A discloses an indoor ecological breeding and planting (fish and grass) symbiotic system which comprises a bearing and circulating system; the bearing and circulating system comprises a bearing box body; a fish tank culture system and a green plant planting system provided with a light supplement lamp system are arranged on the bearing box body; the water treatment system is installed in the bearing box, anti-digestion water supply system and thing networking controller, fish bowl farming system, green planting system and bear and the circulation system links to each other with the high in the clouds server through thing networking controller, be equipped with environment perception system on it, environment perception system passes through thing networking controller and links to each other with the high in the clouds server, moisturizing pipe and the water level valve dress with water piping connection are on anti-digestion water supply system, anti-digestion water supply system connects the fish bowl farming system through the oral siphon, fish bowl farming system passes through outlet conduit and links to each other with green planting system, green planting system passes through the return water pipeline and links to each other with anti-digestion water supply system, oral siphon way and outlet conduit highest end downside open have the air vent, the aquatics intergrowth has been realized. But the device can only be applied to the situation that the earth gravity exists, and the device can not work normally after the object in the space with weak gravity loses weight; at present, no ecological breeding box aiming at the weightless environment in the interplanetary aircraft exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome among the prior art ecological breed case can not adapt to microgravity, vacuum environment not enough, provide an ecological breed case under the microgravity environment, can be applied to the vacuum microgravity environment.

In order to solve the technical problem, the utility model discloses a technical scheme is:

providing an ecological breeding box in a microgravity environment, which comprises a control device, a box body, a supercharging device, a centrifugal machine and a nutrient supply system, wherein the supercharging device, the centrifugal machine and the nutrient supply system are all electrically connected with the control device; the supercharging device is movably arranged in the box body and combined with the box body to form a sealed cavity with a variable space, the centrifugal machine is fixedly arranged in the sealed cavity, and the nutrient supply system is communicated with the sealed cavity.

The utility model discloses a supercharging device and centrifuge at the inside setting of box, controlling means control centrifuge operates the water droplet structure of destroying the dispersion, the airtight cavity size that simultaneously control supercharging device changes box and supercharging device and form, thereby change the pressure in the airtight cavity, with overcome the tension on water droplet ball surface under the weightless environment, make the water droplet fusion in the airtight box condense and form wholly, eliminate its clearance, increase oxygen solubility, prevent that the inside animal oxygen deficiency of box from dying, combine the animal and plant supplementary nourishment in nourishment feed system in for the airtight cavity, ecological breed case weightlessness in can adapting to the space like this, vacuum environment, thereby realize the animal and plant cultivation intergrowth in the interplanetary navigation ware, realize the material self-feeding.

As a further improved structure form, the supercharging device comprises a driving device fixedly arranged on the box body and electrically connected with the control device, and a pressing plate fixedly connected with the driving device, wherein the pressing plate is in sliding fit with the inner wall of the box body. The driving device can adopt an air cylinder, one end of the air cylinder is fixed on the upper panel of the box body, the other end of the air cylinder is fixedly connected with the pressing plate, the pressing plate is driven by the air cylinder to move in the box body, so that the size of the closed cavity can be changed, water drops and air in the closed space can be compressed, gaps among the water drops are eliminated, the water drops are fused into a whole, and the gaps are gathered to one side close to the pressing plate, so that the condition that dispersed water drops are not suitable for growth of aquatic animals under a weightless environment can be avoided; meanwhile, the pressure increase in the closed cavity can increase the dissolved amount of oxygen, so that animals in water can better live.

As a further improved structure form, the pressure sensor used for monitoring the pressure in the closed cavity, the concentration sensor used for monitoring the concentration of nutrients in the closed cavity and the elastic piece are further arranged on the pressing plate, two ends of the elastic piece are respectively fixedly connected with the side wall of the box body and the pressing plate, and the pressure sensor and the concentration sensor are electrically connected with the control device. The pressure sensor transmits the pressure value in the closed cavity to the control device, and the control device can automatically control the operation of the driving device according to the pressure value to drive the pressing plate to compress the closed cavity, so that the water in the closed cavity can form a whole and animal survival is facilitated; the concentration sensor is electrically connected with the control device and used for monitoring the oxygen concentration in the closed cavity and transmitting the oxygen concentration information in the closed cavity to the control device, and the control device controls the operation of the nutrient supply system according to the oxygen concentration. The distance between the pressing plate and the upper panel can be adjusted by adjusting the tightness of the elastic piece, and the pressure in the closed cavity can be adjusted.

As a further improved structure form, a safety valve is arranged on the pressure plate, the safety valve is communicated with the closed cavity and the external container, and the safety valve is electrically connected with the control device. The arrangement is that after the closed space is compressed, gaps among water drops are gathered to one side close to the pressure plate, the closed cavity is difficult to compress continuously after the pressure in the closed cavity reaches a certain value, at the moment, the control device sends a signal to the safety valve to control the safety valve to open, the closed cavity is communicated with an external container to release pressure, so that air or water flow in the closed cavity close to one side of the pressure plate is discharged into the external container, and the closed cavity is convenient to compress continuously; meanwhile, the phenomenon that the internal pressure of the closed cavity is too high to damage the box body structure and the excrement of the external container enters the space capsule for large-cycle treatment can be avoided.

As a further improved structure form, a reticular safety cover is arranged outside the centrifugal machine in a surrounding mode, and the centrifugal machine is fixedly arranged at a position far away from the center of the box body. The safety cover can prevent blades of the centrifugal machine from damaging animals and plants living in the closed cavity when the centrifugal machine runs; and install centrifuge at the non-central point of box and put, can be so that centrifuge at the during operation, everywhere water velocity of flow is different in the box for its destruction effect to the water droplet is better, simultaneously because everywhere velocity of flow is different, has just built more lifelike natural environment, and the aquatic thing can find a environment that is fit for oneself to persist.

As a further improved structure form, the bottom of the box body is fixedly provided with an isolation net, and a gate is arranged on the isolation net. The isolation net divides the interior of the box body into an animal growth area and a plant growth area, and can prevent animals in the animal growth area from entering the plant growth area at will, so that the growth of plants is damaged in a transition way, and the ecological balance of the ecological breeding box is influenced; in addition, the number of plants in the plant growing area can be increased or decreased at any time through the gate, and the ecological balance in the ecological breeding box can be artificially controlled.

As a further improved structure form, a heating device and a temperature sensor which are electrically connected with the control device are also fixedly arranged below the box body. The temperature sensor monitors the temperature in the closed box body and transmits a temperature signal to the control device, and the control device controls the heating device to work according to the temperature signal so as to maintain the temperature in the closed cavity body in a relatively stable state and be suitable for the rapid growth of animals and plants in the box body.

As a further improved structure, the water circulation system comprises a first guide pipe, a water pump electrically connected with the control device and arranged on the first guide pipe, one end of the first guide pipe is fixedly communicated with the bottom of the box body, the other end of the first guide pipe is fixedly communicated with the upper portion of the box body, an isolation sieve is arranged at one end of the first guide pipe connected with the box body, and a first electromagnetic valve, a detachable filtering sieve cylinder and a second electromagnetic valve are sequentially arranged between the isolation sieve and a water inlet of the water pump. Impurities such as excrement generated in the growth process of animals and plants pollute the water environment in the box body, so that the water pump needs to be controlled to work at regular time through the control device to pump out water in the water tank, water flow firstly passes through the filtering screen drum, and the impurities in the water flow are filtered by the filtering screen drum and then return to the water tank, so that internal circulation is realized, and the ecological balance in the ecological breeding box is maintained; and the filter screen cylinder which is detachably arranged is also convenient to replace so as to maintain the filtering effect. The electromagnetic valves are arranged on two sides of the filtering screen cylinder, the first electromagnetic valve and the second electromagnetic valve are closed, water flow of the first guide pipe is cut off, and the filtering screen cylinder can be conveniently replaced.

As a further improved structure form, the nutrient supply system comprises an air pump, an air storage tank and a feed adder which are electrically connected with a control device, wherein a piston is arranged in the feed adder, a first air inlet valve which is electrically connected with the control device is arranged at the upper part of the feed adder, and a discharge hole is arranged at the lower part of the feed adder; one end of the air pump is communicated with the air storage tank, the other end of the air pump is a free end, and the air storage tank is respectively communicated with the first guide pipe and the first air inlet valve; the discharge hole is communicated with one end of the water outlet of the water pump through a first one-way valve arranged on the discharge hole. The free end of the air pump can be arranged in the atmosphere or externally connected with an oxygen tank, when the water circulation system works, the control device simultaneously controls the air pump in the nutrient supply system to work, air or oxygen is pressed into the air storage tank in front of the water pump to be stored for a certain amount and then enters the first conduit to circulate, so that under the negative pressure of the water pump and the pressurization effect of the air pump, the oxygen directly participates in the water circulation through the first conduit and enters the box body after being fully dissolved in the first conduit. When needing to add the fodder, oxygen enters into the fodder adder through first admission valve in, and the motion of compression piston, the fodder in the fodder adder washes open the first check valve on the discharge opening, enters into and mixes inside the reentrant box with water in the first pipe, and the supply through oxygen is as power simultaneously like this, and the supply of fodder is realized to the drive fodder adder, can improve the utilization ratio of air pump, the energy can be saved.

As a further improved structure form, the discharge hole is connected with a discharge pipe, one end of the discharge pipe, far away from the discharge hole, is provided with a second one-way valve in the same direction as the first one-way valve, a branch pipe communicated with the air storage tank is arranged between the first one-way valve and the second one-way valve, and one end of the branch pipe, near the discharge pipe, is provided with a second air inlet valve electrically connected with the control device. The feed in the weightless environment can not automatically fall into the first guide pipe under the action of the gravity of the feed, so that the addition amount of the feed is difficult to control, the control device firstly opens the first air inlet valve and closes the second air inlet valve, oxygen enters the upper part of the feed adder and pushes the piston to move downwards, compressed feed firstly flushes the first one-way valve and enters the discharge pipe, the control device then closes the first air inlet valve and opens the second air inlet valve, oxygen enters the discharge pipe and pushes the first one-way valve to return, and meanwhile, the feed in the discharge pipe is pushed to flush the second one-way valve and enters the first guide pipe; through such setting can the accurate partial fodder in the control fodder adder advance go into the discharging pipe in, is pressed into inside the box in the first pipe completely by oxygen again.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the water drop structure is damaged by the centrifugal machine, the pressure plate is driven by the driving device to compress the closed cavity, so that the pressure in the closed cavity is increased, the surface tension of the water drops is overcome, the water drops are fused and condensed into a whole, the oxygen solubility is increased, the survival of animals in water under the microgravity environment is facilitated, and harmonious symbiosis is formed between the animals and aquatic plants;

(2) the air pump is used as the power for supplying oxygen and feed, so that the feed amount entering the box body can be accurately controlled in a weightless environment.

Drawings

FIG. 1 is a schematic view of the overall structure of the ecological breeding box under microgravity environment of the utility model;

FIG. 2 is a schematic view of the overall structure of the feed feeder of the ecological breeding box in microgravity environment of the present invention;

FIG. 3 is a partial cross-sectional view of section A of FIG. 1;

fig. 4 is a schematic diagram of a circuit connection block of the ecological breeding box in the microgravity environment of the utility model.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Examples

Fig. 1 to 4 show an embodiment of an ecological breeding box in a microgravity environment according to the present invention, which includes a control device, a box body 1, a pressurizing device 2, a centrifuge 3, and a nutrient supply system 4, all of which are electrically connected to the control device; supercharging device 2 activity sets up in box 1 inside and forms changeable airtight cavity 11 in space with box 1 combination, and centrifuge 3 is fixed to be set up in airtight cavity 11 inside, and nourishment feed system 4 communicates with airtight cavity 11. Wherein, the box body 1 can be made of transparent materials, thereby being convenient for observing the growth condition and illumination of the inside animals and plants.

The supercharging device 2 in this embodiment includes a driving device 21 fixedly disposed on the box body 1 and electrically connected to the control device, and a pressing plate 22 fixedly connected to the driving device 21, wherein the pressing plate 22 is in sliding fit with the inner wall of the box body 1. The driving device 21 can adopt an air cylinder, one end of the air cylinder is fixed on the upper panel of the box body 1, the other end of the air cylinder is fixedly connected with the pressing plate 22, the pressing plate 22 is driven by the air cylinder to move up and down in the box body 1, so that water drops and air in the closed cavity 11 can be compressed, gaps among the water drops are eliminated, the water drops are fused into a whole, and the air in the gaps is gathered to one side close to the pressing plate 22, so that the situation that dispersed water drops are not suitable for growth of aquatic animals under a weightless environment can be avoided; meanwhile, the dissolved amount of oxygen can be increased by increasing the pressure in the closed cavity 11, so that animals in water can better live. Of course, the driving device 21 is not limited to the air cylinder, and other driving mechanisms may be adopted as long as the pressing plate 22 can be pushed to move up and down.

The pressure sensor 23 for monitoring the pressure in the closed cavity 11, the concentration sensor 26 for detecting the concentration of nutrients in the closed cavity 11, and the elastic member 24 are further arranged on the pressure plate 22 in this embodiment, two ends of the elastic member 24 are respectively fixedly connected with the side wall of the box body 1 and the pressure plate 22, and the pressure sensor 23 and the concentration sensor 26 are electrically connected with the control device. The pressure sensor 23 transmits the pressure value in the closed cavity 11 to the control device, and the control device can automatically control the operation of the driving device 21 according to the pressure value to drive the pressing plate 22 to compress the closed cavity 11, so that the water in the closed cavity 11 can form a whole and animal survival is facilitated; the concentration sensor 26 can be an oxygen sensor or other substance concentration sensors, can monitor the concentration of nutrients such as oxygen in water and transmit concentration information to the control device, and the control device automatically regulates and controls the operation of the nutrient supply system 4 according to the concentration information to add oxygen or feed, thereby ensuring the demand of animal and plant nutrients in the box body 1. The distance between the pressing plate 22 and the upper panel can also be adjusted by adjusting the tightness of the elastic member 24, and the pressure in the sealed cavity 11 can also be adjusted. The elastic member 24 may employ a common pressure spring, torsion spring, or the like. The pressure plate 22 in this embodiment is provided with a safety valve 25, the safety valve 25 communicates the sealed cavity 11 with an external container, and the safety valve 25 is electrically connected with a control device. The arrangement is that after the closed space is compressed, gaps among water drops are gathered to one side close to the pressure plate 22, the closed cavity 11 is difficult to compress continuously after the pressure in the closed cavity reaches a certain value, at the moment, the control device sends a signal to the safety valve 25 to control the safety valve to open, the closed cavity 11 is communicated with an external container to release pressure, so that air or water flow in the closed cavity 11 close to one side of the pressure plate 22 is discharged into the external container, and the closed cavity 11 is convenient to compress continuously; meanwhile, the phenomenon that the structure of the box body 1 is damaged due to overlarge internal pressure of the closed cavity 11 can be avoided. The excrement of the outer container enters the space capsule for large-cycle treatment.

The centrifuge 3 in this embodiment is provided with a net-shaped safety cover 31 in an enclosing manner, and the centrifuge 3 is fixedly disposed at a position far away from the center of the box body 1. The safety cover 31 can prevent blades of the centrifuge 3 from damaging animals and plants living in the closed cavity 11 when the centrifuge operates; and install centrifuge 3 at the non-central point of box 1 and put, can be so that centrifuge 3 is at the during operation, and everywhere water velocity of flow is different in the box 1 for it is better to the destructive effect of water droplet, simultaneously because everywhere velocity of flow is different, has just built more lifelike natural environment, and the aquatic thing can find an environment that is fit for oneself to persist.

In this embodiment, the bottom of the box body 1 is fixedly provided with an isolation net 5, and the isolation net 5 is provided with a gate 51. The isolation net 5 divides the interior of the box body 1 into an animal growth area and a plant growth area, and the isolation net 5 can prevent animals in the animal growth area from entering the plant growth area at will and damaging the growth of plants in a transition way to influence the ecological balance of the ecological breeding box; in addition, the quantity of plants in the plant growing area can be increased or decreased at any time through the gate 51, and the ecological balance in the ecological breeding box can be artificially controlled.

In this embodiment, a heating device 6 and a temperature sensor 61 both electrically connected to the control device are further fixedly disposed below the box body 1. The temperature sensor 61 monitors the temperature inside the closed box body 1 and transmits a temperature signal to the control device, and the control device controls the heating device 6 to work according to the temperature signal, and forced convection is carried out through the water pump so as to maintain the temperature inside the closed cavity 11 in a relatively stable state, so that animals and plants inside the box body 1 can grow rapidly.

As shown in fig. 1 and fig. 3, the water circulation system further includes a first conduit 7 and a water pump 8 electrically connected to the control device, one end of the first conduit 7 is fixedly communicated with the bottom of the box 1, the other end of the first conduit 7 is fixedly communicated with the upper portion of the box 1, an isolation sieve 71 is disposed at one end of the first conduit 7 connected to the box 1, and a first electromagnetic valve 73, a detachable filtering sieve cylinder 72 and a second electromagnetic valve 74 are sequentially disposed between the isolation sieve 71 and the water pump 8. Impurities such as excrement generated in the growth process of animals and plants pollute the water environment in the box body 1, so that the water pump 8 needs to be controlled to work regularly through the control device to pump out water in the water tank, water flow firstly passes through the filtering screen drum 72, and the impurities in the water flow are filtered by the filtering screen drum 72 and then return to the water tank, so that internal circulation is realized, and ecological balance in the ecological breeding box is maintained; and the filter screen drum 72 that can dismantle the setting also conveniently changes to maintain the filter effect, there is the solenoid valve in filter screen drum 72 both sides, closes first solenoid valve 73 and second solenoid valve 74, cuts off the rivers of first pipe 7, can change filter screen drum. It should be noted that, of course, a water quality sensor electrically connected to the control device may be disposed inside the water tank, the water quality sensor acquires water quality information inside the water tank and transmits the water quality information to the control device, and the control device controls the operation of the water pump 8 according to the water quality information to automatically control the internal circulation; in addition, the water quality condition can be observed by naked eyes conveniently, and the work of the water pump 8 is controlled manually to start internal circulation.

As shown in fig. 1 and 2, the nutrient supply system 4 in this embodiment includes an air pump 41 electrically connected to a control device, an air tank 42, and a feed adding device 43, wherein the feed adding device 43 is internally provided with a piston 431, the upper part is provided with a first air inlet valve 432 electrically connected to the control device, and the lower part is provided with a discharge port 433; one end of the air pump 41 is communicated with the air storage tank 42, and the other end is a free end. The air storage tank 42 is respectively communicated with the first conduit 7 and the first air inlet valve 432, and a third one-way valve 439 is further arranged between the air storage tank 42 and the first conduit 7 to prevent water in the first conduit 7 from entering the air storage tank 42; the first one-way valve 434 arranged on the discharge hole 433 is communicated with the water inlet of the first conduit 7 far away from the water pump 8. The free end of the air pump 41 can be directly arranged in the atmosphere or externally connected with an oxygen tank, when the water circulating system works, the control device simultaneously controls the air pump 41 in the nutrient supply system 4 to work, air in the atmosphere or oxygen in the oxygen tank is pressed into the air storage tank 42 in front of the water pump 8 to be stored for a certain amount, and then the oxygen enters the first conduit 7 to circulate, so that under the negative pressure of the water pump 8 and the pressurization effect of the air pump 41, the oxygen directly participates in the water circulation through the first conduit 7, and enters the box body 1 after being fully dissolved in the first conduit 7; when the feed is required to be added, oxygen enters the feed adding device 43 through the first air inlet valve 432, the compression piston 431 moves, the feed in the feed adding device 43 flushes the first one-way valve 434 on the discharge hole, enters the first conduit 7, is mixed with water and then enters the box body 1, and the feed adding device 43 is driven to realize feed supply through the supply of the oxygen and serves as power, so that the utilization rate of the air pump 41 can be improved, and the energy is saved. It should be noted that the feed adding device 43 may be provided with a feed inlet for supplying feed to the space inside the feed adding device 43 and below the piston 431, and the feed adding device 43 may be provided with an exhaust valve for communicating the space above the piston 431 with the space outside the feed adding device 43, so as to exhaust oxygen above the piston 431, reduce the upward resistance of the piston 431, and facilitate the feed to be pressed into the feed adding device 43; it is also conceivable that a third solenoid valve 421 electrically connected to the control means for controlling the flow of oxygen in the air tank 42 may be provided between the air tank 42 and the third check valve 439, so that the effective control of the supply of oxygen can be achieved.

As shown in fig. 2, the discharge port 433 of the present embodiment is connected with a discharge pipe 435, one end of the discharge pipe 435 away from the discharge port 433 is provided with a second check valve 438 having the same direction as the first check valve 434, a branch pipe 436 communicating with the air storage tank 42 is arranged between the first check valve 434 and the second check valve 438, and one end of the branch pipe 436 close to the discharge pipe 435 is provided with a second air inlet valve 437 electrically connected with the control device. Because the feed in the zero gravity environment can not automatically fall into the first conduit 7 under the action of the gravity of the feed, the addition amount of the feed is difficult to control, the control device firstly opens the first air inlet valve 432 and closes the second air inlet valve 437, oxygen enters the upper part of the feed adder 43 and pushes the piston 431 to descend, compressed feed firstly flushes the first one-way valve 434 and enters the discharge pipe 435, the control device then closes the first air inlet valve 432 and opens the second air inlet valve 437, oxygen enters the discharge pipe 435 and pushes the first one-way valve 434 to return, and meanwhile, the feed in the discharge pipe 435 is pushed to flush the second one-way valve 438 and enters the first conduit 7; by means of this arrangement, it is possible to precisely control the partial feed in the feed feeder 43 to enter the outlet pipe 435 and then to be completely pressed into the first conduit 7 by the oxygen into the interior of the tank 1.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An ecological breeding box in a microgravity environment is characterized by comprising a control device, a box body (1), a supercharging device (2) electrically connected with the control device, a centrifugal machine (3) and a nutrient supply system (4); the device is characterized in that the supercharging device (2) is movably arranged inside the box body (1) and combined with the box body (1) to form a sealed cavity (11) with a variable space, the centrifugal machine (3) is fixedly arranged inside the sealed cavity (11), and the nutrient supply system (4) is communicated with the sealed cavity (11).

2. The ecological breeding box in the microgravity environment according to claim 1, characterized in that the pressurizing device (2) comprises a driving device (21) fixedly arranged on the box body (1) and electrically connected with the control device, and a pressing plate (22) fixedly connected with the driving device (21), wherein the pressing plate (22) is in sliding fit with the inner wall of the box body (1).

3. The ecological breeding box in the microgravity environment according to claim 2, wherein the pressure plate (22) is further provided with a pressure sensor (23) for monitoring the pressure in the closed cavity (11), a concentration sensor (26) for monitoring the concentration of nutrients in the closed cavity (11), and an elastic member (24), two ends of the elastic member (24) are respectively and fixedly connected with the side wall of the box body (1) and the pressure plate (22), and the pressure sensor (23) and the concentration sensor (26) are electrically connected with the control device.

4. The ecological breeding box in the microgravity environment as claimed in claim 3, wherein a safety valve (25) is arranged on the pressure plate (22), the safety valve (25) is communicated with the sealed cavity (11) and an external container, and the safety valve (25) is electrically connected with the control device.

5. An ecological cultivation box in a microgravity environment as claimed in claim 1, characterized in that the centrifuge (3) is surrounded by a net-shaped safety cover (31), and the centrifuge (3) is fixedly arranged at a position far away from the center of the box body (1).

6. The ecological breeding box in the microgravity environment according to claim 1, characterized in that an isolation net (5) is fixedly arranged at the bottom of the box body (1), and a gate (51) is arranged on the isolation net (5).

7. The ecological breeding box in the microgravity environment according to claim 1, characterized in that a heating device (6) and a temperature sensor (61) which are electrically connected with the control device are further fixedly arranged below the box body (1).

8. The ecological breeding box in the microgravity environment according to any one of claims 1 to 7, characterized by further comprising a water circulation system, wherein the water circulation system comprises a first conduit (7) and a water pump (8) electrically connected with the control device and arranged on the first conduit (7), one end of the first conduit (7) is fixedly communicated with the bottom of the box body (1), the other end of the first conduit (7) is fixedly communicated with the upper portion of the box body (1), an isolation sieve (71) is detachably arranged at one end of the first conduit (7) connected with the box body (1), and a first electromagnetic valve (73), a detachable filtering sieve cylinder (72) and a second electromagnetic valve (74) are sequentially arranged between the isolation sieve (71) and a water inlet of the water pump (8).

9. The ecological breeding box in the microgravity environment according to claim 8, wherein the nutrient supply system (4) comprises an air pump (41), an air storage tank (42) and a feed adding device (43) which are electrically connected with the control device, a piston (431) is arranged in the feed adding device (43), a first air inlet valve (432) which is electrically connected with the control device is arranged at the upper part, and a discharge hole (433) is arranged at the lower part; one end of the air pump (41) is communicated with the air storage tank (42), the other end of the air pump is a free end, and the air storage tank (42) is respectively communicated with the first guide pipe (7) and the first air inlet valve (432); the discharge hole (433) is communicated with one end of a water outlet of the water pump (8) through a first one-way valve (434) arranged on the discharge hole.

10. The ecological breeding box in the microgravity environment as claimed in claim 9, wherein the discharging pipe (435) is connected to the discharging pipe (433), a second one-way valve (438) in the same direction as the first one-way valve (434) is arranged at one end of the discharging pipe (435) far away from the discharging pipe (433), a branch pipe (436) communicated with the air storage tank (42) is arranged between the first one-way valve (434) and the second one-way valve (438), and a second air inlet valve (437) electrically connected with the control device is arranged at one end of the branch pipe (436) close to the discharging pipe (435).