Electromagnetic shielding sound insulation experiment observation box
By designing an electromagnetic shielded sound insulation experimental observation box, the problems of high cost, inaccurate experiments and difficult maintenance in traditional noise-exposed animal experiments were solved, and more efficient, accurate and reliable experimental results were achieved.
Patent Information
- Application Number
- CN202510268266.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-05-13
AI Technical Summary
In traditional noise-exposed animal experiments, problems such as the high construction cost of shielding the experimental observation room, stress response and inner ear damage of the experimental animals, non-uniform noise exposure and difficulty in maintaining the experimental environment affect the accuracy and reliability of the experiment.
An electromagnetic shielded sound insulation experimental observation box was designed. By improving the contact method between the speaker and the squirrel cage, adopting earthquake isolation measures, optimizing the experimental observation box structure, redesigning the animal distribution mode and improving the squirrel cage structure, the convenience, accuracy and reliability of the experiment are improved.
It reduces the interference of vibration on the experiment, reduces the possibility of inaccurate experimental results, reduces construction costs, improves operation convenience, improves the experimental environment, and improves the accuracy of experimental results.
Smart Images
Figure CN119969283A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of noise exposure experiments, and in particular to an electromagnetic shielding sound insulation experiment observation box. Background Art
[0002] In animal experimental studies on the effects of noise on hearing, it is crucial to ensure the accuracy and reliability of the experimental environment. Traditional noise exposure animal experiments are usually completed in a shielded experimental observation room. Many unfavorable factors in traditional animal experimental devices affect the achievement of experimental goals.
[0003] For example, first of all, the shielded experimental observation room is usually set up in an empty soundproof room or a closed basement. In order to ensure the acoustic characteristics of the room, professional sound insulation and sound absorption modifications are required. At the same time, professional ventilation and lighting systems need to be set up to ensure the physical condition of the experimental animals without affecting the acoustic characteristics of the room. The overall cost is high, which is not conducive to disinfection in the SPF-level experimental environment, and also increases the complexity of the experimental operation.
[0004] Secondly, the cage of the experimental animal (usually a mouse) is placed in a shielded experimental observation box. When the noise exposure experimental steps are carried out, the speaker is in direct contact with the mouse cage, causing the cage to vibrate. First, the vibration is transmitted to the animal, causing an increase in the secretion of adrenal cortical hormones (such as cortisol) in the animal, resulting in a stress response; second, the vibration of the mouse cage may directly act on the inner ear structure (such as the cochlea) of the mouse through bone conduction or mechanical conduction, causing inner ear tissue damage or abnormal function, thereby interfering with the accurate assessment of the degree of hearing loss; third, the vibration will cause the experimental animal to move, affecting the signal transmission between the detection equipment and the animal. All of the above will affect the accuracy of the experiment.
[0005] In addition, the previous vertical arrangement of experimental animals in the exposure distribution pattern can hardly ensure that each mouse is exposed to noise evenly. The different distances from the speakers lead to differences in the noise intensity received by the mice. There are very likely to be differences in the physiological behavior and hearing damage of the mice, which further affects the reliability of the experimental results.
[0006] Finally, there is no isolation device between the mouse cage and the ground, and the direct contact with the ground makes it inconvenient to clean the feces and urine. Traditional mouse cages are prone to breed bacteria and produce odors, which increases the difficulty of maintaining the experimental environment; environmental changes can easily affect the physiological state of experimental animals and affect the experimental results.
[0007] To this end, we proposed an electromagnetic shielding sound insulation experimental observation box to solve the above problems. Summary of the invention
[0008] The purpose of the present invention is to solve the problems existing in the prior art, and to propose an electromagnetic shielding sound insulation experimental observation box, which improves the convenience, accuracy and reliability of the experiment by improving the setting of the experimental observation box, the contact method between the speaker and the mouse cage, the mouse cage design and the animal distribution pattern.
[0009] In order to achieve the above object, the present invention adopts the following technical solutions:
[0010] An electromagnetic shielding sound insulation experimental observation box comprises an experimental observation box body, a squirrel cage and a loudspeaker. The four corners of the bottom of the experimental observation box body are all equipped with caster assemblies for height adjustment and mobility. Two fixed bracket assemblies are arranged in the upper and lower parts of the experimental observation box body, and the two fixed bracket assemblies are respectively used to fix the squirrel cage and the loudspeaker. A tray located below the squirrel cage and removable is arranged in the experimental observation box body. A multi-color lighting system is installed on the inner top of the experimental observation box body, and a curtain assembly is arranged between the loudspeaker and the multi-color lighting system. A ventilation cavity interconnected with the interior of the experimental observation box body is formed on the rear side of the experimental observation box body, and a ventilation assembly for ventilating the interior of the experimental observation box body is installed in the ventilation cavity. A door body is installed on the front side wall of the experimental observation box body, a transparent observation window is installed through the door body, and a control panel is installed on the door body.
[0011] Preferably, the experimental observation box body is composed of an outer layer material and an inner layer material, the outer layer material is a copper plate and a galvanized steel plate, and the inner layer material is a glass fiber sound-absorbing cotton and a rubber sound insulation material.
[0012] Preferably, the caster assembly includes a connecting ring connected to the bottom of the experimental observation box body by screws, the bottom of the connecting ring is rotatably connected to a slide cylinder, the slide cylinder is slidably connected to a connecting rod extending to the bottom thereof, a plurality of buffer springs are connected between the connecting rod and the inner top of the slide cylinder, the bottom of the connecting rod is fixedly connected to an internal threaded cylinder, the internal threaded cylinder is internally threaded with a threaded adjustment rod extending to the bottom thereof, the bottom of the threaded adjustment rod is fixedly connected to a U-shaped frame, the U-shaped frame is rotatably connected with the caster body, the side wall of the U-shaped frame is provided with a groove, the U-shaped frame is threadedly connected with a threaded rod extending into the groove, and one end of the threaded rod located in the groove is fixedly connected to a brake pad.
[0013] Preferably, the fixed bracket assembly includes a limit rod fixedly connected between the inner side walls at both ends of the experimental observation box body, the limit rod is slidably sleeved with two connecting blocks, a double-headed screw is rotatably connected between the inner side walls at both ends of the experimental observation box body, the double-headed screw thread passes through the two connecting blocks, a rotating handle is fixedly sleeved on the double-headed screw, and an arc-shaped support plate is fixedly connected to the two connecting blocks, and a bottom support is provided on the arc-shaped support plate.
[0014] Preferably, the squirrel cage is cylindrical, the bottom of the squirrel cage is meshed, the interior of the squirrel cage is divided into six placement spaces by partitions, and six mesh cover plates are provided on the squirrel cage, and the six mesh cover plates correspond to the six placement spaces one by one.
[0015] Preferably, two upper and lower limit plates are fixedly connected to the inner side walls at both ends of the experimental observation box body, the tray is pulled together and connected between the plurality of limit plates, and the edge of the tray is protruding upward.
[0016] Preferably, the multi-color lighting system is an LED lamp, and a ventilation passage opposite to the multi-color lighting system is opened through the body of the experimental observation box. The multi-color lighting system can be adjusted to warm yellow light, white light and blue light, and the multi-color lighting system is controlled to open and close by a control panel.
[0017] Preferably, the partition curtain assembly includes two mounting rods fixedly connected to the body of the experimental observation box, one end of the two mounting rods is fixedly connected to a first connecting ring, the other end of the two mounting rods is slidably connected to a second connecting ring, and the partition curtain body is fixedly connected between the two first connecting rings and the two second connecting rings.
[0018] Preferably, the ventilation assembly includes a mounting bracket fixed on the inner side wall of the ventilation cavity, a driving motor is installed on the front side wall of the mounting bracket, an exhaust fan is installed on the end of the output shaft of the driving motor, and the exhaust fan is controlled to be turned on and off by a control panel. A ventilation port is opened through the rear side wall of the ventilation cavity, and a dustproof net is installed in the ventilation port.
[0019] Preferably, the door body is installed on the front side wall of the experimental observation box body through hinges, an electromagnetic sealing gasket is installed on the edge of the door body, and the transparent observation window is a double-layer glass structure with sound-absorbing material sandwiched in the middle.
[0020] Compared with the prior art, the present invention has the following beneficial effects:
[0021] 1. This electromagnetic shielding sound insulation experimental observation box reduces the interference of vibration on the experiment by improving the connection method between the speaker and the squirrel cage and adopting seismic isolation measures, thereby improving the experimental efficiency and reducing the possibility of inaccurate experimental results due to non-experimental factors.
[0022] 2. This electromagnetic shielding and sound insulation experimental observation box optimizes the structure of the experimental observation box body, adopts more economical and efficient materials and technologies, and improves the ventilation and lighting systems, thereby reducing construction costs, improving the convenience of operation, and improving the experimental environment, thereby improving the accuracy of the experimental results.
[0023] 3. This electromagnetic shielding sound insulation experimental observation box redesigns the animal distribution pattern, adopts a circular array distribution, and optimizes the layout in combination with the sound propagation characteristics. Compared with the vertical arrangement of animals, it can improve the experimental efficiency, reduce the cost of repeating experiments due to inaccurate experimental results, and improve the accuracy of the experimental results.
[0024] 4. This electromagnetic shielding sound insulation experimental observation box reduces the maintenance cost of the cage by improving the structural design of the cage and setting a pull-out tray, which solves the problem of difficult cleaning of traditional cages and improves the efficiency of experimental environment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic diagram of the external three-dimensional structure of an electromagnetic shielding sound insulation experimental observation box proposed by the present invention;
[0026] Figure 2 This is a schematic diagram of the internal three-dimensional structure of an electromagnetic shielding sound insulation experimental observation box proposed by the present invention;
[0027] Figure 3 This is a schematic diagram of the main plane structure of an electromagnetic shielding sound insulation experimental observation box proposed by the present invention;
[0028] Figure 4 for Figure 3 A magnified view of the structure at center;
[0029] Figure 5 for Figure 3 Schematic diagram of the three-dimensional structure in section at AA in the middle;
[0030] Figure 6 for Figure 3 Schematic diagram of the structure viewed from above at AA in the middle (excluding the speaker).
[0031] In the figure: 1. Experimental observation box body; 2. Internal threaded cylinder; 3. Threaded adjustment rod; 4. U-shaped frame; 5. Caster body; 6. Groove; 7. Threaded rod; 8. Brake pad; 9. Squirrel cage; 10. Speaker; 11. Limit rod; 12. Connecting block; 13. Double-headed screw; 14. Arc support plate; 15. Turning handle; 16. Slide rail; 17. Tray; 18. Multi-color lighting system; 19. Mounting rod; 20. First connecting ring; 21. Partition curtain body; 22. Ventilation cavity; 23. Mounting frame; 24. Exhaust fan; 25. Door body; 26. Transparent observation window; 27. Control panel; 28. Drive motor; 29. Ventilation port; 30. Mesh cover; 31. Slide cylinder; 32. Connecting rod. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0033] Reference Figure 1-Figure 6 An electromagnetic shielding sound insulation experimental observation box includes an experimental observation box body 1, a mouse cage 9 and a speaker 10. The experimental observation box body 1 is composed of an outer layer material and an inner layer material. The outer layer material is a copper plate and a galvanized steel plate, which is used for the outer layer of the box wall, the box top and the box bottom of the experimental observation box. These materials have good conductivity and can effectively shield electromagnetic interference. Welding technology is used at the joints of the metal sheets to provide high-strength connections, thereby achieving an all-round, gap-free electromagnetic shielding effect. The inner layer material is glass fiber sound-absorbing cotton and rubber sound insulation material, which have good sound absorption performance and effectively dampen the propagation of sound. The rubber sound insulation material is wrapped in the outer layer of the glass fiber sound-absorbing cotton to further enhance the sound insulation effect, and the installation of the glass fiber sound-absorbing cotton and the rubber sound insulation material is sealed with sealant. The sealant can provide a good sealing effect to ensure that the sound cannot be transmitted through the gap and prevent the sound from escaping.
[0034] Reference Figure 3 and Figure 4, caster assemblies with adjustable height are installed on the four corners of the bottom of the experimental observation box body 1. The caster assemblies are evenly distributed on the four corners or multiple supporting points of the bottom of the experimental observation box body 1 to ensure uniform force. The caster assembly includes a connecting ring connected to the bottom of the experimental observation box body 1 by screws, and the bottom of the connecting ring is rotatably connected with a slide cylinder 31, and the slide cylinder 31 is rotatably connected to the connecting ring, so that the caster body 5 can rotate flexibly, which is convenient for pushing and turning. A connecting rod 32 extending to the bottom thereof is slidably connected in the slide cylinder 31, and a plurality of buffer springs are connected between the connecting rod 32 and the inner top of the slide cylinder 31. The connecting rod 32 slides in the slide cylinder 31 and is buffered by the buffer spring, which can reduce vibration and noise during movement. The bottom of the connecting rod 32 is fixedly connected to an internal threaded cylinder 2, and the internal threaded cylinder 2 is internally threaded with a threaded adjustment rod 3 extending to the bottom thereof. The bottom of the threaded adjustment rod 3 is fixedly connected to a U-shaped frame 4, and rotating the U-shaped frame 4 can The height of the caster body 5 extending below the internal threaded tube 2 is adjusted, so that it can adapt to the ground at different heights. The U-shaped frame 4 is rotatably connected with the caster body 5, and the side wall of the U-shaped frame 4 is provided with a groove 6. The U-shaped frame 4 is threaded with a threaded rod 7 extending into the groove 6, and one end of the threaded rod 7 located in the groove 6 is fixedly connected with a brake pad 8. The side wall of the threaded rod 7 is fixedly connected with a rotating block for facilitating its rotation. The rotation of the threaded rod 7 can drive the brake pad 8 to move horizontally under the meshing action with the U-shaped frame 4. When the brake pad 8 moves out of the groove 6 until it abuts against the caster body 5, the caster body 5 can be fixed, which is convenient for fixing the position of the experimental observation box body 1. The caster body 5 is made of wear-resistant and corrosion-resistant materials, such as nylon, polyurethane or steel casters. During use, the wear of the caster body 5 is regularly checked, and the caster body 5 with severe wear is replaced in time. The caster body 5 is regularly lubricated and maintained to ensure its smooth operation.
[0035] Two fixed bracket assemblies are arranged in the upper and lower parts of the experimental observation box body 1, and the two fixed bracket assemblies are used to fix the squirrel cage 9 and the speaker 10 respectively. The speaker involved in this application is different from the conventional speaker and has a wide dynamic sounding ability. It can stably output sound within the sound pressure level range of 80dB-130dB, meet the needs of different intensity sound stimulations in a specific experimental environment, and provide accurate and controllable sound conditions for related experiments. Through experimental testing of the influence of the vibration of the speaker 10 on the squirrel cage 9 at different distances, it is found that when the gap is 3cm, it can effectively prevent the vibration of the speaker 10 from being transmitted to the squirrel cage 9. In the actual installation process, accurate measuring tools, such as calipers, are used to ensure that the gap between the speaker 10 and the squirrel cage 9 is 3cm. The fixed bracket assembly includes a limit rod 11 fixedly connected between the inner side walls at both ends of the experimental observation box body 1, and two connecting blocks 12 are slidably sleeved on the limit rod 11. A double-headed screw 13 is rotatably connected between the inner side walls at both ends of the experimental observation box body 1. The double-headed screw 13 threads through the two connecting blocks 12. The two connecting blocks 12 are fixedly connected with an arc-shaped support plate 14. A rotating handle 15 is fixedly sleeved on the double-headed screw 13. Rotating the rotating handle 15 can rotate the double-headed screw 13, and then under the action of its thread meshing, the two connecting blocks 12 can drive the two arc-shaped support plates 14 to approach each other to fix the corresponding squirrel cage 9 or speaker 10. A bottom bracket is provided on the arc-shaped support plate 14, which can support the squirrel cage 9 and the speaker 10 through the bottom, and then the squirrel cage 9 and the speaker 10 can be fixed together through the bottom and side walls. Rubber shock-absorbing pads are provided on the arc-shaped support plate 14 and the bottom bracket. The two fixed bracket assemblies fix the squirrel cage 9 and the speaker 10 respectively. The rubber shock-absorbing pads can reduce the vibration phenomenon and reduce the interference of vibration on the experiment.
[0036] The cage 9 is cylindrical, and the use of a high-hardness iron mesh to form a cylindrical structure has many rationalities. From a mechanical point of view, the cylindrical structure has good compressive resistance. There may be various external forces in the experimental observation box body 1 (such as slight vibration of the equipment, etc.), and the cylindrical cage 9 can better withstand these external forces and maintain the stability of the structure. In contrast, the corners of the square structure are more easily damaged under pressure. From the perspective of animal behavior, the cylindrical structure has no sharp inner corners, which reduces the risk of mice being injured during activities. Mice can move freely in the cage, and the cylindrical inner wall can make their activities smoother and avoid injuries caused by collisions with sharp corners. For space utilization, the layout of the cylindrical structure in the experimental observation box body 1 is more flexible. It can make more effective use of limited space, and the distance from the middle speaker 10 in all directions is relatively uniform, which is conducive to creating a relatively consistent experimental environment. The bottom of the cage 9 is arranged in a mesh shape, which provides basic support for the entire cage 9, prevents mice and feces from directly contacting the bottom of the experimental observation box body 1, and facilitates the movement and positioning of the cage 9 as a whole. From the support perspective, the grid provides multiple support points, and the feet of the experimental animals can find a stable support position at the edge of the grid. In terms of feces treatment, feces can fall smoothly through the pores. This avoids the accumulation of feces in the mouse cage 9 and keeps the inside of the mouse cage 9 clean. In long-term experiments, if feces cannot be discharged in time, bacteria may breed and produce odors, affecting the health of mice and the experimental environment. The width of the gap is determined according to the body shape of the mouse. For example, when the experimental animal is a mouse, the gap width is designed to be about 0.5cm. At the same time, the shape of the bottom of the mouse cage 9 is not larger than the tray 17, ensuring that feces and urine can accurately fall to the corresponding position of the tray 17. And stainless steel has a high hardness, which enables the mouse cage 9 to withstand a certain weight and external force. In the experiment, the experimental animal may move, jump, etc. on the bottom of the mouse cage 9. The mouse cage 9 needs to have sufficient strength to support the weight of the animal and prevent the bottom of the mouse cage 9 from being deformed or damaged. For example, for some experimental animals that are larger or more active, such as guinea pigs, if the bottom of the cage 9 is not strong enough, it may collapse, causing injuries to the experimental animals and affecting the smooth progress of the experiment.
[0037] The mouse cage 9 is divided into six placement spaces by partitions, and the six placement spaces are distributed in a circular array. This design is helpful for group experiments. For example, in an experiment to study the physiological or behavioral effects of noise on mice, mice of different ages, different genders or mice that receive different pretreatments can be placed in different placement spaces. In this way, multiple groups of comparative experiments can be carried out simultaneously in the same mouse cage 9 to reduce experimental errors. From an observation point of view, the separated areas allow each mouse to have a relatively independent space, which is convenient for experimenters to observe the state of each mouse more clearly. When recording the behavior, diet, excretion, etc. of mice, the data can be more accurately matched to specific individuals, thereby improving the accuracy of experimental data. Six mesh cover plates 30 are provided on the mouse cage 9, and the six mesh cover plates 30 correspond to the six placement spaces one by one. The design of the mesh cover plates 30 is mainly for the convenience of experimenters to operate. The mesh cover plates 30 can prevent mice from escaping. During the experiment, mice may try to escape from the mouse cage 9 due to noise stimulation or other factors, and the mesh cover plates 30 can effectively limit their range of action. At the same time, the presence of the mesh cover 30 also helps to maintain a relatively stable environment in the mouse cage 9 and reduce the interference of external factors (such as foreign matter) on the experiment. A pull block is provided at the upper end of the mesh cover 30 to facilitate its opening. Sound-absorbing sponges are provided at the edges of the mesh cover 30. These sound-absorbing materials can further absorb the sound reflections emitted by the speaker 10 and reduce the interference of the reflected sound on the mouse.
[0038] The experimental observation box body 1 is provided with a tray 17 located below the mouse cage 9 and can be pulled out and removed. The tray 17 is a stainless steel tray. The detachable structural design has many advantages during the experiment. For example, when the tray 17 needs to be deeply cleaned, the detachable tray 17 can be easily taken out from the experimental observation box body 1, which is much more convenient than cleaning it in the experimental observation box body 1. The experimenter can take the tray 17 to a special cleaning area and use appropriate cleaning tools and detergents to thoroughly clean it. In some long-term experiments, the feces and urine of experimental animals may form stubborn stains on the tray 17. If the tray 17 is not detachable, it is difficult to completely remove these stains, and the detachable design solves this problem. The easy-to-clean feature also helps to maintain the hygiene of the experimental environment. The stainless steel material itself is relatively smooth and not easy to adhere to dirt. Coupled with a reasonable structural design, such as there are no too many complex structures and dead corners inside the tray 17, it makes cleaning easier. This is very important to prevent bacteria from breeding and odor generation, because the health of experimental animals and experimental results may be affected by these factors. The inner side walls at both ends of the experimental observation box body 1 are fixedly connected to two upper and lower slide rails 16, and the tray 17 is pulled and connected between the multiple slide rails 16. The pull-out tray 17 further improves the convenience of operation. The experimenter can easily pull out the tray 17 for inspection, cleaning or replacement. Compared with the traditional fixed type, the pull-out tray 17 does not need to move the experimental animal out of the experimental observation box body 1 to perform operations related to the tray 17. For example, during the experiment, if you need to quickly check the situation in the tray 17, such as observing the color and shape of the excrement, you only need to gently pull out a part of the tray 17, which will not cause too much interference to the experimental animal. And when the tray 17 needs to be replaced, the pull-out design makes the replacement process faster and more efficient. The edge of the tray 17 is protruding upward, so that the edge of the tray 17 has a certain height, which effectively prevents the overflow of feces and urine. During the experiment, the excretion behavior of the experimental animal is uncontrollable. If the edge of the tray 17 is too low, feces and urine can easily flow out from the edge of the tray 17 and pollute the internal environment of the shielding box. For example, in some experiments, experimental animals may change their excretion habits due to noise stimulation or other factors, increase the amount of excretion or the randomness of excretion. At this time, the height of the edge of the tray 17 plays a key protective role, ensuring that the excrement is confined in the tray 17 for centralized cleaning.
[0039] When performing experimental operations in the experimental observation box body 1, the lighting system plays a vital role. For example, when the experimenter needs to place experimental animals in the experimental observation box body 1, adjust experimental equipment (such as the position of the mouse cage 9, the angle of the speaker 10, etc.), the light can provide enough lighting to make the operation more accurate. If there is no light, the inside of the shielding box may be in a dark state, and the experimenter can only rely on the weak light or touch outside to operate, which can easily lead to operational errors, such as accidentally touching the experimental animals, knocking down equipment, etc. The lighting system also helps to inspect and maintain the equipment inside the experimental observation box body 1. During the experiment, it may be necessary to check whether the mouse cage 9 is damaged, whether the speaker 10 is working properly, etc. The light can illuminate these devices, allowing the experimenter to find problems in time. Through the transparent observation window 26 and with the help of light, the state of the internal experimental animals can be roughly observed without opening the experimental observation box body 1. This is a non-invasive observation method that does not cause additional interference to the experimental animals. For example, in an experiment on the effect of noise on the hearing of experimental animals, the behavior of the animals can be observed, such as whether there are abnormal agitation, stillness or curling up, so as to preliminarily judge the health status of the animals or the degree of reaction to noise. The lighting system also makes it possible to monitor the experimental animals for a long time. During the long experimental process, the experimenter can regularly observe the state of the animals through the transparent observation window 26, and record the diet, drinking water, activities and other conditions of the animals. This is very important for studying the changes of experimental animals in different experimental stages, such as the changes in the behavior and physiological state of animals under different noise exposure durations. For this reason, a multi-color lighting system 18 is installed on the top of the experimental observation box body 1. The multi-color lighting system 18 is an LED lamp. Since the experimental observation box body 1 is a relatively closed space, the multi-color lighting system 18 will generate heat during operation. If the heat cannot be dissipated in time, it may cause the temperature in the experimental observation box body 1 to rise, affecting the living environment and experimental results of the experimental animals. Therefore, a ventilation channel relative to the multi-color lighting system 18 is provided on the experimental observation box body 1 to ensure that the heat can be effectively dissipated. The shell of the multi-color lighting system 18 is made of insulating material, the connection of the wires is firm and reliable, and overload protection, leakage protection and other devices are set to ensure the safe conduct of the experiment and ensure that the multi-color lighting system 18 will not cause electrical safety problems such as leakage and short circuit. Different colors of light may have different effects on the behavior and physiological state of experimental animals. For example, some studies have shown that white light may make animals more alert, while warm yellow light may make animals feel more comfortable and relaxed. When choosing the color of the light, it is necessary to weigh it according to the type of experimental animal and the purpose of the experiment. If you are studying the reaction of animals to noise in a more natural state, it may be more appropriate to choose warm yellow light; if you are simulating an occupational environment, white light may be more suitable. The color of the light will also affect the clarity of observation.Certain colors of light may make certain features of the experimental animals or certain parts of the equipment easier to observe. For example, when observing white experimental animals, white light may cause reflections, affecting the observation effect, while blue light may make the animal's outline clearer. Therefore, the multi-color lighting system 18 can be adjusted to warm yellow light, white light and blue light, and the multi-color lighting system 18 is controlled by the control panel 27 to turn on and off.
[0040] Reference Figure 2 and Figure 3 A curtain assembly is provided between the speaker 10 and the multi-color lighting system 18. The curtain assembly includes two mounting rods 19 fixedly connected to the experimental observation box body 1. One end of the two mounting rods 19 is fixedly connected to a first connecting ring 20, and the other end of the two mounting rods 19 is slidably connected to a second connecting ring. A curtain body 21 is fixedly connected between the two first connecting rings 20 and the two second connecting rings, so that one end of the curtain body 21 can be fixed and the other end can be pulled. The curtain body 21 is a dense mesh, which can not only block the heat of the multi-color lighting system 18 and reduce the impact on experimental animals, but also reduce the impact on its lighting effect.
[0041] Reference Figure 5 and Figure 6The rear side of the experimental observation box body 1 forms a ventilation cavity 22 interconnected with the inside thereof, and a ventilation assembly for ventilating the inside of the experimental observation box body 1 is installed in the ventilation cavity 22. The ventilation assembly includes a mounting frame 23 fixed on the inner wall of the ventilation cavity 22, and a driving motor 28 is installed on the front side wall of the mounting frame 23. An exhaust fan 24 is installed at the end of the output shaft of the driving motor 28. The driving motor 28 drives the exhaust fan 24 to rotate to ventilate the inside of the experimental observation box body 1. The experimental animals need fresh air in the experimental observation box body 1 to maintain normal physiological functions. The exhaust fan 24 can continuously introduce fresh air from the outside into the experimental observation box body 1 to ensure that the animals breathe enough oxygen. For example, during a long experimental process, if there is no good ventilation, the animals may experience shortness of breath and decreased physiological functions due to lack of oxygen, which affects the accuracy of the experimental results. In addition, the experimental animals will produce excrement such as feces and urine in the shielding box. If these substances cannot be discharged in time, they will accumulate in the box. The exhaust fan 24 can effectively exhaust the odor from the experimental observation box body 1, maintaining a relatively clean and odor-free experimental environment. This is not only beneficial to the health of experimental animals, but also convenient for experimenters to observe and operate. A ventilation port 29 is provided through the rear side wall of the ventilation cavity 22, and a dustproof net is installed in the ventilation port 29. The exhaust fan 24 is controlled by the control panel 27 to open and close. The experimenter can easily control the opening and closing of the exhaust fan 24 without opening the experimental observation box body 1. For example, during the experiment, if it is found that an odor begins to be generated or the ventilation volume needs to be adjusted, the experimenter can directly operate the switch from the outside, avoiding interference to the experimental animals due to frequent opening of the experimental observation box body 1, and also reducing the influence of external electromagnetic signals and other factors on the experiment.
[0042] Reference Figure 1 A door body 25 is installed on the front side wall of the experimental observation box body 1, and an electromagnetic sealing gasket is installed on the edge of the door body 25. The electromagnetic sealing gasket can provide a good electromagnetic shielding effect to ensure the sealing of the door and prevent electromagnetic waves from leaking through the door gap. A transparent observation window 26 is installed through the door body 25. The door body 25 is installed on the front side wall of the experimental observation box body 1 through a hinge. An electromagnetic sealing gasket is installed on the edge of the door body 25. The transparent observation window 26 is a double-layer glass structure with sound-absorbing material in the middle. The double-layer glass structure can effectively soundproof, and the sound-absorbing material in the middle further enhances the sound absorption effect. A control panel 27 is installed on the door body 25. The control panel 27 controls the opening and closing of the multi-color lighting system 18, the speaker 10 and the drive motor 28, so that it can be controlled from the outside of the experimental observation box body 1.
[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. An electromagnetic shielding sound insulation experimental observation box, comprising an experimental observation box body (1), a cage (9) and a speaker (10), characterized in that: The four corners of the bottom of the experimental observation box body (1) are all equipped with caster assemblies for height adjustment and mobility. Two fixed bracket assemblies are arranged in the upper and lower parts of the experimental observation box body (1), and the two fixed bracket assemblies are used to fix the squirrel cage (9) and the loudspeaker (10) respectively. The experimental observation box body (1) is provided with a tray (17) located below the squirrel cage (9) and can be pulled out and removed. The top of the inner part of the experimental observation box body (1) is equipped with a multi-color lighting system (18). A curtain assembly is arranged between the loudspeaker (10) and the multi-color lighting system (18). The rear side of the experimental observation box body (1) forms a ventilation cavity (22) interconnected with the interior thereof. A ventilation assembly for ventilating the interior of the experimental observation box body (1) is arranged in the ventilation cavity (22). A door body (25) is installed on the front side wall of the experimental observation box body (1). A transparent observation window (26) is installed through the door body (25). A control panel (27) is installed on the door body (25).
2. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The experimental observation box body (1) is composed of an outer layer material and an inner layer material, wherein the outer layer material is a copper plate and a galvanized steel plate, and the inner layer material is a glass fiber sound-absorbing cotton and a rubber sound-insulating material.
3. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The caster assembly comprises a connecting ring connected to the bottom of the experimental observation box body (1) by screws, the bottom of the connecting ring is rotatably connected to a slide cylinder (31), a connecting rod (32) extending below the slide cylinder (31) is slidably connected inside the slide cylinder (31), a plurality of buffer springs are connected between the connecting rod (32) and the inner top of the slide cylinder (31), the bottom of the connecting rod (32) is fixedly connected to an internal threaded cylinder (2), the internal threaded cylinder (2) is internally threadedly connected to a threaded adjustment rod (3) extending below the slide cylinder (31), the bottom of the threaded adjustment rod (3) is fixedly connected to a U-shaped frame (4), the U-shaped frame (4) is rotatably connected to a caster body (5), a groove (6) is provided on the side wall of the U-shaped frame (4), a threaded rod (7) extending into the groove (6) is threadedly connected through the U-shaped frame (4), and a brake pad (8) is fixedly connected to one end of the threaded rod (7) located in the groove (6).
4. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The fixed bracket assembly comprises a limit rod (11) fixedly connected between the inner side walls at both ends of the experimental observation box body (1), two connecting blocks (12) are slidably sleeved on the limit rod (11), a double-headed screw (13) is rotatably connected between the inner side walls at both ends of the experimental observation box body (1), the double-headed screw (13) is threadedly passed through the two connecting blocks (12), a rotating handle (15) is fixedly sleeved on the double-headed screw (13), and an arc-shaped support plate (14) is fixedly connected to the two connecting blocks (12), and a bottom bracket is provided on the arc-shaped support plate (14).
5. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The squirrel cage (9) is cylindrical, the bottom of the squirrel cage (9) is arranged in a mesh shape, the interior of the squirrel cage (9) is divided into six placement spaces by a partition, and six mesh cover plates (30) are arranged on the squirrel cage (9), and the six mesh cover plates (30) correspond to the six placement spaces one by one.
6. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The inner side walls at both ends of the experimental observation box body (1) are fixedly connected to two slide rails (16) arranged up and down, and the tray (17) is connected in a pull-out manner through the slide rails (16), and the edge of the tray (17) is arranged to protrude upwards.
7. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The multi-color lighting system (18) is an LED lamp. A ventilation passage opposite to the multi-color lighting system (18) is provided through the body (1) of the experimental observation box. The multi-color lighting system (18) can be adjusted to warm yellow light, white light and blue light. The multi-color lighting system (18) is controlled to be turned on and off by a control panel (27).
8. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The partition curtain assembly comprises two mounting rods (19) fixedly connected in the experimental observation box body (1), one end of the two mounting rods (19) is fixedly connected to a first connecting ring (20), the other end of the two mounting rods (19) is slidably connected to a second connecting ring, and a partition curtain body (21) is fixedly connected between the two first connecting rings (20) and the two second connecting rings.
9. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The ventilation assembly comprises a mounting frame (23) fixed on the inner wall of the ventilation cavity (22); a driving motor (28) is mounted on the front wall of the mounting frame (23); an exhaust fan (24) is mounted on the end of the output shaft of the driving motor (28); the exhaust fan (24) is controlled to be turned on and off by a control panel (27); a ventilation port (29) is formed through the rear wall of the ventilation cavity (22); a dustproof net is mounted in the ventilation port (29).
10. The electromagnetic shielding sound insulation experimental observation box according to claim 1, characterized in that: The door body (25) is installed on the front side wall of the experimental observation box body (1) through hinges, and an electromagnetic sealing gasket is installed on the edge of the door body (25). The transparent observation window (26) is a double-layer glass structure with sound-absorbing material sandwiched in the middle.