A small animal independent ventilation non-magnetic cage breeding system for indoor air intake and exhaust in sub-magnetic space

Abstract

The application discloses a small animal independent ventilation non-magnetic cage feeding system for indoor air intake and exhaust in a sub-magnetic space, which comprises the following parts: an external magnetic field shielding room, a small animal feeding non-magnetic cage, a non-magnetic cage placing rack, a ventilation unit and an air purification unit and the like; the external magnetic field shielding room mainly shields the external geomagnetic field and provides a required sub-magnetic environment for small animal cultivation; the non-magnetic cage placing rack is mainly used for placing the small animal feeding non-magnetic cage and is equipped with independent ventilation pipelines required for small animal feeding and is also made of non-magnetic materials; the non-magnetic feeding system for small animal cultivation in the sub-magnetic space disclosed in the application is mainly used for in-depth research on the influence mechanism of the sub-magnetic field environment on living beings, so as to further improve the survival rate and life quality of astronauts in future space exploration and interstellar travel.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of biological feeding instruments, and mainly relates to a small animal independent ventilation non-magnetic cage feeding system for indoor air intake and exhaust in a sub-magnetic space. BACKGROUND

[0002] So far, the organisms on Earth have been living and developing under the action of the geomagnetic field; after millions of years of evolution, organisms have gradually adapted to the geomagnetic field; in fact, the geomagnetic field plays a key role in the growth, reproduction, migration and positioning of organisms, and becomes a basic condition for the life of organisms on Earth, like temperature, air pressure and moisture; especially for many vertebrates (such as migratory birds, turtles, etc.), they rely on the geomagnetic field to perceive location and directional information; compared with the magnetic field strength on the surface of the Earth, the magnetic field strength in extraterrestrial space is low, belonging to the sub-magnetic field category; the sub-magnetic field refers to the magnetic field between the weak magnetic field and the geomagnetic field, and is usually defined as 1-1000 nanotesla (nT); compared with the geomagnetic field, the sub-magnetic field is very small, only a few percent to a few thousandths of the geomagnetic field; the sub-magnetic field is generated by the nonlinear effects of the Earth's magnetosphere and other celestial magnetospheres; in the space environment, the sub-magnetic field is an important environmental factor, which has a great influence on cosmic rays and plasma in the solar system; in addition, the sub-magnetic field also has an impact on living organisms; existing research shows that the sub-magnetic field has a certain impact on the growth, metabolism, immune system, nervous system, reproductive system, etc. of organisms; for example, animal experiments show that exposure to the sub-magnetic field will cause some diseases, such as decreased immune function, cancer, liver and kidney lesions, etc.; in addition, the sub-magnetic field may also affect the behavior and migration of organisms, such as birds, insects and whales, etc. Animals may use the Earth's magnetic field for navigation, and the existence of the sub-magnetic field may interfere with their normal behavior; since the late 1960s, the biological effects of the sub-magnetic field have attracted widespread attention in the field of space science; researchers have found that the sub-magnetic field environment may have a series of negative effects on organisms; experiments show that the continuous exposure of organisms to the sub-magnetic field environment may cause a variety of biological effects; for example, snails and frog embryos develop abnormally; the tiger parrot's chirping is abnormal, showing changes in chirping frequency, volume and tone; the biological rhythm of sparrows changes, including adjustment of diurnal activity and sleep pattern; and the learning and memory ability of chickens and fruit snails is impaired; in addition, the perception of pain may also change, including increased or decreased sensitivity to painful stimuli;

[0003] In humans, brief exposure to sub-magnetic field environments can lead to a decrease in visual memory ability; this can affect the cognitive abilities of astronauts during space missions, potentially impacting the success of the mission; as the flight time and distance of future space missions are expected to increase significantly, astronauts will face the challenge of living and working in space for long periods in a sub-magnetic environment; therefore, in-depth research on the effects of sub-magnetic fields on living organisms and corresponding protective measures is of great significance to the development of space biology and space medicine; these studies can provide key information for spacecraft design, astronaut training, life support systems, and interventions for psychological and physiological health in space; in summary, a comprehensive study of the effects of geomagnetic and sub-magnetic field environments on living organisms, including humans, can help improve our understanding of this field and provide valuable data for future space exploration missions.

[0004] Currently, there are still many unknown areas of the effects of sub-magnetic field environments on living organisms; therefore, it is necessary to conduct in-depth research on the mechanisms of the effects of sub-magnetic field environments on living organisms in order to improve the survival rate and quality of life of living organisms during space exploration and future interstellar travel; in this process, modeling of sub-magnetic field environments and issues such as stability and uniformity of sub-magnetic field environments also need to be further explored and solved; in order to study the properties of sub-magnetic fields and their effects on living organisms, scientists have conducted a large number of experimental studies using magnetic shielding technology, magnetic gradient technology, superconducting magnet technology, and other means; these experimental studies have revealed the mechanisms and modes of action of sub-magnetic fields on living organisms, providing important references for understanding the biological effects of sub-magnetic fields; in order to obtain a stable sub-magnetic field environment, laboratories often use shielding and coil compensation methods to reduce external magnetic field interference; among them, shielding and coil compensation are two commonly used methods; the shielding method uses high magnetic permeability metal materials to shield external magnetic fields; the coil compensation method uses three orthogonal coils to offset the three components of the geomagnetic field, thereby obtaining a spherical sub-magnetic environment in the center of the coil; the feeding of experimental organisms mainly relies on non-magnetized cages, but the current non-magnetized feeding system cannot achieve the goal of feeding a large number of organisms for a long time, mainly because it is difficult to ensure the specific weak magnetic indicators of the gas environment in the feeding environment and the sub-magnetic space environment of the experimental organisms during feeding.

[0005] In order to study the effects of space sub-magnetic environments on living organisms, this paper designs and builds a small animal independent ventilation non-magnetic cage feeding system for indoor air intake and exhaust in a sub-magnetic space, mainly including an external external magnetic field shielding room, an internal small animal feeding non-magnetic cage, and a matching non-magnetic cage rack, an air exchange unit, and an air purification unit. SUMMARY

[0006] The present application aims to solve the related research on the influence of sub-magnetic environment on the body of small animals in the existing small animal feeding process, and the present application provides a stable sub-magnetic feeding environment for small animals.

[0007] According to the small animal independent ventilation non-magnetic cage feeding system for indoor air intake and exhaust in a sub-magnetic space, at least the following beneficial effects are achieved: the system can stably provide the sub-magnetic space required by the living environment of small animals in the feeding process for a long time, the feeding cage itself is designed to be demagnetized and does not introduce magnetic signals, the system is provided with an air exchange unit and an air purification unit, and clean gas environment can be provided in long-term feeding.

[0008] According to the small animal independent ventilation non-magnetic cage feeding system for indoor air intake and exhaust in a sub-magnetic space, at least the following beneficial effects are achieved: the system can stably provide the sub-magnetic space required by the living environment of small animals in the feeding process for a long time, the feeding cage itself is designed to be demagnetized and does not introduce magnetic signals, the system is provided with an air exchange unit and an air purification unit, and clean gas environment can be provided in long-term feeding.

[0009] According to some embodiments of the present application, a small animal independent ventilation non-magnetic cage breeding system for indoor air intake and exhaust in a sub-magnetic space is implemented as follows: the external magnetic field shielding room disclosed in the present application provides a sub-magnetic environment for small animal breeding, which is composed of multiple layers of permalloy and has an internal cubic space with a length, width and height of 3 meters; the non-magnetic breeding cage is a cage specially designed for breeding experimental small animals in a non-magnetic field environment, which has the characteristic of non-magnetic compared with ordinary breeding cages, that is, the materials and design of the small animal breeding non-magnetic cage can reduce or eliminate the influence of the magnetic field; at the same time, it has good air permeability, the design of the small animal breeding non-magnetic cage considers the comfort and health of small animals, has good air permeability, can provide sufficient oxygen and fresh air, and at the same time can exclude waste and pollutants; in addition, the small animal breeding non-magnetic cage ensures safety, the design and manufacture of the small animal breeding non-magnetic cage need to comply with laboratory animal science and laboratory safety regulations to ensure the safety of small animals and the accuracy of experiments; and the small animal breeding non-magnetic cage is easy to clean and maintain, adopts a detachable and easy-to-clean structure to ensure that the living conditions of small animals remain clean; the non-magnetic cage rack disclosed in the present application is the most basic component, a sturdy and stable rack is used to place multiple small animal breeding non-magnetic cages; the size and shape of the non-magnetic cage rack can be adjusted according to the number and size of the small animals to be bred; at the same time, the non-magnetic cage rack disclosed in the present application is equipped with adjustable cage horizontal adjuster; the cage horizontal adjuster can be used to adjust and calibrate the levelness of the non-magnetic cage rack to ensure that the living conditions of small animals are as stable and comfortable as possible; the non-magnetic cage rack disclosed in the present application is also equipped with a bottom collection tray, which is convenient for cleaning and maintenance, and a bottom collection tray is arranged under the non-magnetic cage rack to collect the feces and waste of small animals; the air exchange unit disclosed in the present application mainly includes an air inlet pipeline, an air outlet pipeline, a waste gas pipeline and an air exchange pump; the air exchange unit is one of the most important components of the small animal independent ventilation non-magnetic cage breeding system for indoor air intake and exhaust in a sub-magnetic space, and one or more fans can be used to provide air circulation and ventilation as needed; the size and number of the fan can be determined according to the number of small animals to be bred and the size of the laboratory or site; the waste gas pipeline in the air exchange unit disclosed in the present application is used to remove waste gas and pollutants, and the waste gas pipeline should lead to the air purification unit to avoid the influence of waste gas and pollutants on the indoor environment and the health of small animals; the air exchange unit disclosed in the present application is equipped with air quality monitoring equipment, which is mainly used to ensure that the air quality of the breeding area meets the safety standards and regulations, and air quality monitoring equipment is installed to monitor parameters such as oxygen, carbon dioxide, temperature and humidity; these devices can help to discover and solve air quality problems in time, ensure the health of small animals and the accuracy of experimental results; the air purification unit disclosed in the present application maintains good air quality for the living environment of small animals;Remove bacteria, viruses, harmful gases and particulate matter and other pollutants in the room air, provide clean and healthy breeding environment. The following is the composition of small animal breeding air purification unit: air filter: this is one of the most important components, according to the need to use high efficiency air filter to remove pollutants in the air; air cleaner: in addition to the air filter, use air cleaner to remove harmful gases and particulate matter in the air.

[0010] Compared with the prior art, the characteristics of the present application are:

[0011] (1) The external magnetic field shielding room used in the present application is composed of multiple layers of permalloy plates and vibration isolation foundation, which provides an internal sub-magnetic space environment that can allow small animals to live for a long time to meet the long-term breeding needs.

[0012] (2) The non-magnetic cage and non-magnetic cage rack used in the present application are designed and built with non-magnetic materials and corresponding demagnetization design, which will not introduce additional magnetism during breeding.

[0013] (3) The present application is equipped with air exchange unit and air purification unit, which can provide good air flow for long-term breeding of small animals, and ensure that the gas environment in the non-magnetic cage for small animal breeding is clean. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A small animal independent ventilation non-magnetic cage breeding system for indoor air intake and exhaust in a sub-magnetic space is provided.

[0015] Figure part number: 1-external magnetic field shielding room, 2-non-magnetic cage rack, 3-air exchange unit, 4-air purification unit.

[0016] Figure 2 A schematic diagram of the external magnetic field shielding room of the present application is shown.

[0017] Figure part number: 1a-external magnetic field shielding room outer wall, 1b-external magnetic field shielding room vibration isolation platform, 1c-external magnetic field shielding room vibration isolation foundation.

[0018] Figure 3 A schematic diagram of the non-magnetic cage rack of the present application is shown.

[0019] Figure part number: 2a-non-magnetic cage rack outer frame, 2b-non-magnetic cage air inlet hole, 2c-non-magnetic cage air outlet hole, 2d-cage horizontal adjuster, 2e-non-magnetic pulley, 2f-back plate air outlet pipe, 2g-back plate air inlet pipe. DETAILED DESCRIPTION

[0020] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein like reference numerals refer to like elements or elements with similar functions throughout the figures. The embodiments described below are exemplary and are not intended to be limiting in accordance with the present application. In the description of the application, it is to be understood that the orientation or positional relationships, such as up, down, etc., are based on the orientation or positional relationships shown in the drawings, and are merely used for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In the description of the present application, plural means two or more. If there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated. In the description of the present application, unless otherwise explicitly limited, the words arranged, installed, connected, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0021] The present application is further described in detail below with reference to the attached drawings:

[0022] Reference Figure 1It is a kind of small animal independent ventilation non-magnetic cage feeding system principle diagram for indoor air supply and exhaust in sub-magnetic space, the part number 1 in the figure is the external magnetic field shielding room, which can provide a stable and clean internal magnetic environment in the process of small animal feeding; The part number 2 in the figure is a non-magnetic cage rack specially designed for feeding experimental small animals in a non-magnetic field environment, which is magnetized as a whole, and does not introduce magnetic noise during placement and use; The part number 3 in the figure is a ventilation unit, which mainly includes an air inlet pipeline, an air outlet pipeline, a waste gas pipeline and a ventilation pump fan; The ventilation unit (3) is one of the most important components in the small animal independent ventilation non-magnetic cage feeding system for indoor air supply and exhaust in sub-magnetic space; The waste gas pipeline in the ventilation unit (3) is used to remove waste gas and pollutants, and the waste gas pipeline leads to the air purification unit (4), so as to avoid the influence of waste gas and pollutants on the indoor environment and the health of small animals; The ventilation unit (3) disclosed in the application is provided with air quality monitoring equipment, which is mainly used to ensure that the air quality of the feeding area meets the safety standards and regulations, and the air quality monitoring equipment is installed to monitor oxygen, carbon dioxide, temperature and humidity and other parameters, which can help to find and solve air quality problems in time, and ensure the health of small animals and the accuracy of experimental results; The part number 4 in the figure is an air purification unit (4) for maintaining good air quality of the living environment of small animals; Remove bacteria, viruses, harmful gases and particulate matter and other pollutants in indoor air to provide a clean and healthy feeding environment; The following is the component of the small animal feeding air purification unit (4); The air filter is one of the most important components, and high-efficiency air filters are used to remove pollutants in the air according to the needs; In addition to the air filter, the air cleaner is used to remove harmful gases and particulate matter in the air.

[0023] Reference Figure 2 It is a principle diagram of external magnetic field shielding room, which is composed of multiple layers of permalloy, and the inside is a cube space with a length, width and height of 3 meters; The part number 1a in the figure is the outer wall of the external magnetic field shielding room, which is composed of high-permeability permalloy plates and non-magnetic screws, and is used for shielding external magnetic field to form an internal non-magnetic space; The part number 1b in the figure is a vibration isolation platform for supporting the external magnetic field shielding room, which is used in combination with the bottom 1c external magnetic field shielding room to isolate ground vibration and strengthen the shielding effect of external magnetic field.

[0024] Reference Figure 3The application discloses a small animal non-magnetic feeding cage, which is characterized by the following technical scheme: the small animal non-magnetic feeding cage is composed of a non-magnetic cage placing rack (2) and a non-magnetic cage (1); the non-magnetic cage placing rack (2) is designed as a whole without magnetization, and is combined with the non-magnetic cage to provide a stable, safe and clean feeding environment for small animal culture; the main body of the non-magnetic cage placing rack (2) is a non-magnetic cage placing rack outer frame which is built by high-strength demagnetization materials (including but not limited to polyether ether ketone, phenolic plastic and the like) and is a firm and stable rack for placing a plurality of small animal feeding non-magnetic cages; the size and shape of the non-magnetic cage placing rack (2) can be adjusted according to the number and size of the small animals to be bred; meanwhile, the non-magnetic cage placing rack (2) is provided with a cage horizontal adjuster (2d), and the horizontal degree of the non-magnetic cage placing rack can be adjusted and calibrated by using the cage horizontal adjuster (2d) according to the need, so as to ensure that the living conditions of the small animals are as stable as possible; in addition, in order to ensure that the air in the non-magnetic feeding cage is fresh and clean, the non-magnetic cage placing rack (2) is provided with two air path pipelines, namely a back plate air inlet pipe (2g) and a back plate air outlet pipe (2f); each cage is connected with the corresponding non-magnetic cage air outlet hole (2c) and the back plate air outlet pipe (2f); each cage is connected with the corresponding non-magnetic cage air inlet hole (2b) and the back plate air inlet pipe (2g); in this way, independent ventilation in each non-magnetic feeding cage can be ensured, and the gas environment in which the small animals live is clean and tidy; the non-magnetic cage placing rack is provided with a non-magnetic pulley (2e) at the bottom, and the non-magnetic cage placing rack can be pushed and pulled back and forth by the non-magnetic pulley (2e) for convenient use; the small animal non-magnetic feeding cage is used in combination with the non-magnetic cage placing rack (2), is a cage specially designed for feeding experimental small animals in a non-magnetic field environment, has the characteristic of non-magnetism compared with common feeding cages, and the materials and design of the small animal non-magnetic feeding cage can reduce or eliminate the influence of a magnetic field (the non-magnetic materials mentioned in the cage design include but are not limited to polystyrene and polymethyl methacrylate); meanwhile, the small animal non-magnetic feeding cage has good air flow, the design of the small animal non-magnetic feeding cage considers the comfort and health of the small animals, has good air flow, can provide sufficient oxygen and fresh air, and can remove waste and pollutants; in addition, the small animal non-magnetic feeding cage ensures safety, the design and manufacture of the small animal non-magnetic feeding cage need to meet the laboratory animal science and laboratory safety regulations, so as to ensure the safety of the small animals and the accuracy of experiments; and the small animal non-magnetic feeding cage is easy to clean and maintain, adopts a detachable and easy-to-clean structure, and can ensure that the living conditions of the small animals are kept clean.

Claims

1. A non-magnetic cage system for indoor air intake and exhaust in a submagnetic space, characterized in that, It includes the following parts: External magnetic field shielding room (1); Non-magnetic cage placement rack (2); Ventilation unit (3); Air purification unit (4); The external magnetic field shielding room (1) is constructed from multiple layers of permalloy thin plates, with an interior cubic space. The external magnetic field shielding room (1) is built entirely on a vibration-isolated foundation. The non-magnetic cage placement rack (2) includes an outer frame structure, a cage level adjuster, a non-magnetic cage air inlet, a non-magnetic cage air outlet, a back plate air outlet pipe, and a back plate air inlet pipe. The main body of the non-magnetic cage placement rack (2) is a sturdy and stable rack for placing multiple non-magnetic cages for small animal husbandry. The adjustable cage level adjuster on the non-magnetic cage placement rack (2) adjusts and calibrates the level of the non-magnetic cage placement rack for small animal husbandry to ensure stable living conditions for small animals. The non-magnetic cage air inlet, non-magnetic cage air outlet, back plate air outlet pipe, and back plate air inlet pipe are connected to the non-magnetic cages for small animal husbandry at the rear of the outer frame structure of the non-magnetic cage placement rack to allow independent replacement of the gas in each cage. The ventilation unit (3) includes an inlet pipe, an outlet pipe, an exhaust pipe, and a ventilation pump fan. The inlet pipe and outlet pipe are connected to the air inlet and outlet of the non-magnetic cage, respectively. The exhaust pipe is connected to the air purification unit (4). The air circulation and ventilation of the non-magnetic cage for small animal husbandry are achieved by pressurizing the air with the ventilation pump fan. The size and number of ventilation pump fans should be determined according to the number of small animals to be raised. In order to ensure that the air quality in the non-magnetic cage for small animal husbandry meets the safety standards and regulations, air quality monitoring equipment is installed to monitor oxygen, carbon dioxide, temperature and humidity parameters. Air quality problems are detected and resolved in a timely manner to ensure the health of small animals and the accuracy of experimental results. The air purification unit (4) includes an air filter and an air cleaner. Using the air purification unit (4), bacteria, viruses, harmful gases and particulate pollutants in the air inside the non-magnetic cages for raising small animals are removed, providing a clean and healthy breeding environment.

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