High-low-temperature low-pressure and low-oxygen animal experiment cabin

Abstract

The invention provides a high-low-temperature low-pressure low-oxygen animal experiment cabin, which belongs to the technical field of experiment equipment and comprises an equipment cabin and an experiment cabin, a pre-tightening component is arranged on the inner side of the cabin door; the pre-tightening assembly comprises an air cylinder, a driving gear set, a control rack and a plurality of symmetrically-arranged execution assemblies. One end of the control rack is fixedly connected with the end of a telescopic rod of the air cylinder and meshed with the driving gear set. The execution assembly comprises an execution rack set, a limiting rod assembly and a negative pressure assembly. The first driving gear is rotationally erected on one side wall of the experiment cabin through a limiting plate; the cabin door is engaged with the execution rack group when being closed; the other end of the screw rod is fixedly connected with one end of a movable plate, and the other end of the movable plate is fixedly connected with the end part of a piston rod of a negative pressure cylinder; the limiting rod assembly is rotationally arranged on the cabin door and engaged with the other side of the other end of the execution rack set through a second driving gear. According to the device, a relatively closed experiment space can be provided, air exchange with the outside is reduced, and a relatively good pressure stabilizing state is realized.

Description

Technical Field

[0001] The invention relates to the technical field of experimental equipment, and in particular to a high-low temperature, low-pressure and low-oxygen animal experimental chamber. Background Art

[0002] The high-low temperature, low-pressure and low-oxygen animal experimental chamber is a high-end experimental equipment specially used to simulate different oxygen concentrations and temperature environments. This equipment is widely used in biomedicine, neuroscience, physiology and aerospace medicine to study the physiological and behavioral responses of animals under different oxygen concentrations and temperature conditions. The experimental chamber can accurately simulate the low-pressure and low-oxygen environment in high-altitude areas, as well as extremely high or low temperature environments through a high-precision control system. It is equipped with a variety of sensors, including temperature, humidity, oxygen concentration and carbon dioxide concentration sensors, which can monitor and adjust the environmental conditions in the chamber in real time to ensure the accuracy and reliability of experimental data. The main function of this equipment is to simulate different physiological stress responses, study the adaptation mechanism of animals, the effects of oxygen supply on metabolism, respiration, cardiovascular and other systems, and the effects of hypoxia on brain tissue, heart and muscle function. The experimental chamber usually includes two stages: exposure stage and recovery stage. By controlling parameters such as experimental duration and oxygen concentration, different experimental conditions can be simulated to meet various research needs.

[0003] In order to ensure the accuracy of the experimental results, the high-temperature, low-pressure and low-oxygen animal experimental chamber must be able to maintain the constancy of the environmental data in the chamber, which is crucial for controlling the experimental variables. In order to achieve this goal, the experimental chamber must not only improve the accuracy of the environmental control method, but also must have a good sealing effect. However, the experimental chamber must have a door for animals to enter and exit, and this opening poses a challenge to the sealing. The sealing effect of the door mainly depends on the degree of fit between it and the opening of the experimental chamber, and the existing sealing methods mainly rely on externally mounted fixed structures, such as threaded engagement. This method not only requires manual operation, but also has poor sealing effect, which affects the overall performance of the experimental chamber. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a high-temperature, low-pressure, and low-oxygen animal experimental chamber. The device can actively increase the fit between the cabin door and the experimental chamber by means of internal pressure reduction to assist the transmission structure, provide a relatively closed experimental space, reduce air exchange with the outside world, and achieve a better pressure stabilization state.

[0005] The present invention provides the following technical solutions.

[0006] A high-low temperature, low pressure and low oxygen animal experiment cabin, comprising an equipment cabin and an experiment cabin arranged on the top of the equipment cabin; a vacuum pump is arranged in the equipment cabin, and the vacuum pump is connected to the experiment cabin through a vacuum pump pipeline; the characteristic is that one end of the experiment cabin is open and a cabin door is hinged; a pre-tightening assembly is arranged on the inner side of the cabin door; the pre-tightening assembly comprises a cylinder, a driving gear set, a control rack and a plurality of symmetrically arranged actuator assemblies;

[0007] The cylinder is fixedly mounted in the experimental cabin and is connected to the vacuum pump pipeline through a solenoid valve; the driving gear set is rotatably arranged on the inner side of the cabin door; one end of the control rack is fixedly connected to the end of the telescopic rod of the cylinder and meshes with the driving gear set when the cabin door is closed;

[0008] The actuator assembly includes an actuator rack group, a limit rod assembly and a negative pressure assembly; the actuator rack group is slidably arranged on the cabin door, and has teeth at both ends, and one side of one end is meshed with the driving gear group; the negative pressure assembly includes a screw, a first driving gear, a movable plate and a negative pressure cylinder; the first driving gear is rotatably mounted on a side wall of the experimental cabin through a limit plate, and meshes with one side of the other end of the actuator rack group when the cabin door is closed; the negative pressure cylinder is fixedly arranged on the side wall of the experimental cabin; one end of the screw penetrates into the first driving gear and is threadedly matched with the first driving gear, and the other end is fixedly connected to one end of the movable plate, and the other end of the movable plate is fixedly connected to the piston rod end of the negative pressure cylinder;

[0009] The limit rod assembly is rotatably set on the cabin door, and its bottom is engaged with the other side of the other end of the execution rack group through the second driving gear; wherein, when the negative pressure cylinder moves through the moving plate to form a negative pressure state, the limit rod assembly rotates to the front side of the moving plate to limit reset.

[0010] Preferably, the negative pressure cylinder is fixedly arranged on the side wall of the experimental cabin through a mounting plate; a slide groove is fixedly arranged on the side wall of the experimental cabin, and the other end of the movable plate is slidably arranged in the slide groove;

[0011] The contact surface between one end of the movable plate and the limiting rod assembly is a slope surface; the end of the slope surface is provided with a groove for limiting the limiting rod assembly.

[0012] Preferably, the limit rod assembly comprises a rotating plate and a limit rod; the bottom of the rotating plate is fixedly connected to the second driving gear via a rotating shaft; the limit rod is connected to one end of the rotating plate via a spring;

[0013] When the limiting rod rotates to the slope surface of the movable plate, it cooperates with the groove in a certain state.

[0014] Preferably, the cylinder is fixedly mounted in the experimental cabin through a cylinder frame; the driving gear set includes a transmission gear and a driving gear fixed to each other; the driving gear is rotatably connected to the cabin door; the transmission gear is meshed with a control rack; the two sides of the driving gear are respectively meshed with one side of one end of the two execution rack sets;

[0015] Two limiting sleeves are fixedly arranged on the inner side of the door; and the two execution rack sets are respectively slidably arranged in the limiting sleeves.

[0016] Preferably, a circumferential sealing strip is provided on the inner side of the door, and one side of the door is hinged to one side of one end of the experimental cabin through a hinge; and a door lock is provided on the other side of the door.

[0017] Preferably, it also includes an oxygen screening component; the oxygen screening component includes a motor, a rotating plate and a plurality of oxygen screening tubes; the motor is fixedly arranged in the experimental chamber, and one end of the rotating plate is fixedly connected to the output shaft of the motor; the plurality of oxygen screening tubes are fixedly arranged at the end of the rotating plate, and when the motor drives the rotating plate to rotate, the pipe mouth of the oxygen screening tube is connected to one end of the vacuum pump pipeline in the experimental chamber; different amounts of oxygen molecular sieves are built into the plurality of oxygen screening tubes.

[0018] Preferably, a refrigeration device is provided in the equipment cabin, and a heat exchange pipe connected to the refrigeration device is buried at the bottom of the experimental cabin; and a heating wire is buried in the side wall of the experimental cabin.

[0019] Preferably, an observation window is provided on one side of the experimental cabin.

[0020] Beneficial effects of the present invention:

[0021] The present invention proposes a high-low temperature, low-pressure and low-oxygen animal experimental cabin, which can provide a high-low temperature, low-pressure and low-oxygen experimental environment. When the low-pressure environment is constructed by a vacuum pump, the transmission structure of the gear rack and the transmission structure of the screw moving plate are used under the control of the vacuum pump combined with the solenoid valve to drive the moving plate to move, so that the negative pressure cylinder forms a large negative pressure state, and the driving limit rod assembly on the synchronous cabin door rotates to limit the reset of the moving plate. Under the negative pressure traction of the negative pressure cylinder, the cabin door and one end of the opening of the experimental cabin are tightly fitted, providing a relatively closed experimental space, reducing the air exchange with the outside world to achieve a better stable pressure state, no matter what kind of experimental environment is, it can always maintain a certain pressure, temperature and oxygen content state for a long time, and can reduce the number of adjustments to the environmental conditions in the cabin during long-term experiments, and increase the accuracy of experimental data. The present invention assists the transmission structure to actively increase the fit between the cabin door and the experimental cabin by means of internal decompression, provides a relatively closed experimental space, reduces the air exchange with the outside world to achieve a better stable pressure state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an overall assembly diagram of a high-low temperature, low pressure, and low oxygen animal experiment cabin according to an embodiment of the present invention;

[0023] Figure 2 This is an overall structural diagram of a high-low temperature, low pressure and low oxygen animal experiment cabin according to an embodiment of the present invention;

[0024] Figure 3 This is another angled overall structural diagram of the high-low temperature, low pressure and low oxygen animal experiment chamber according to an embodiment of the present invention;

[0025] Figure 4 This is a partial A structural diagram of a high-low temperature, low pressure and low oxygen animal experiment chamber according to an embodiment of the present invention;

[0026] Figure 5 It is a side view of the internal structure of the high-low temperature, low pressure and low oxygen animal experiment chamber according to an embodiment of the present invention.

[0027] Among them, 1. Experimental cabin; 2. Equipment cabin; 3. Cabin door; 4. Observation window; 5. Hinge; 6. Door lock; 7. Vacuum pump pipeline; 8. Solenoid valve; 9. Motor; 10. Oxygen screening tube; 11. Rotating plate; 12. Sealing strip; 13. Heat exchange pipeline; 14. Cylinder; 15. Control rack; 16. Transmission gear; 17. Drive gear; 18. Execution rack group; 19. Cylinder frame; 20. Mounting plate; 21. Negative pressure cylinder; 22. Moving plate; 23. Limit plate; 24. Screw; 25. First drive gear; 26. Second drive gear; 27. Limit sleeve; 28. Slide groove; 29. ​​Rotating shaft; 30. Rotating plate; 31. Spring; 32. Limit rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] Example

[0032] In order to ensure the accuracy of the experimental results, the high-temperature, low-pressure, and low-oxygen animal experimental chamber must be able to maintain the constancy of the environmental data in the chamber, which is crucial for controlling the experimental variables. In order to achieve this goal, the experimental chamber must not only improve the accuracy of the environmental control method, but also must have a good sealing effect. However, the experimental chamber must be equipped with a door for animals to enter and exit, and this opening poses a challenge to the sealing. The sealing effect of the door mainly depends on the degree of fit between it and the opening of the experimental chamber, and the existing sealing methods mainly rely on externally mounted fixed structures, such as threaded engagement. This method not only requires manual operation, but also has a poor sealing effect, which affects the overall performance of the experimental chamber. To this end, this embodiment proposes a high-temperature, low-pressure, and low-oxygen animal experimental chamber, and the specific structure is as follows: Figure 1 and Figure 2 As shown, Figure 1 The schematic diagram of the device assembly is shown in Figure 1. Figure 2 It is an internal structure diagram of the device, which specifically includes an equipment cabin 2 and an experimental cabin 1 arranged on the top of the equipment cabin 2; a vacuum pump is arranged in the equipment cabin 2, and the vacuum pump is connected to the experimental cabin 1 through a vacuum pump pipe 7; one end of the experimental cabin 1 is open, and a cabin door 3 is hinged; a pre-tightening assembly is arranged on the inner side of the cabin door 3; the pre-tightening assembly includes a cylinder 14, a driving gear set, a control rack 15 and a plurality of groups of symmetrically arranged actuators. This embodiment adopts two groups of symmetrically arranged actuators as a demonstration implementation. A maximum of four groups of actuators can be arranged circumferentially to improve the airtightness of the experimental cabin 1.

[0033] like Figure 2As shown, the cylinder 14 is fixedly mounted in the experimental cabin 1, and is connected to the vacuum pump pipeline 7 through the solenoid valve 8; the driving gear set is rotatably arranged on the inner side of the cabin door 3; one end of the control rack 15 is fixedly connected to the end of the telescopic rod of the cylinder 14, and is meshed with the driving gear set when the cabin door 3 is closed;

[0034] like Figure 3 and Figure 4 As shown, Figure 3 This is the internal structure diagram from another angle. Figure 4 It is a partial A structural diagram. The actuator assembly includes an actuator rack group 18, a limit rod assembly and a negative pressure assembly; the actuator rack group 18 is slidably set on the cabin door 3, and has teeth at both ends, and one side of one end is meshed with the driving gear group; the negative pressure assembly includes a screw 24, a first driving gear 25, a movable plate 22 and a negative pressure cylinder 21; the first driving gear 25 is rotatably mounted on a side wall of the experimental cabin 1 through the limit plate 23, and meshes with one side of the other end of the actuator rack group 18 when the cabin door 3 is closed; the negative pressure cylinder 21 is fixedly set on the side wall of the experimental cabin 1; one end of the screw 24 penetrates the first driving gear 25 and is threadedly matched with the first driving gear 25, and the other end is fixedly connected to one end of the movable plate 22, and the other end of the movable plate 22 is fixedly connected to the piston rod end of the negative pressure cylinder 21. As shown Figure 3 As shown, the limit rod assembly is rotatably set on the cabin door 3, and its bottom is engaged with the other side of the other end of the execution rack group 18 through the second driving gear 26; wherein, when the negative pressure cylinder 21 moves through the moving plate 22 to form a negative pressure state, the limit rod assembly rotates to the front side of the moving plate 22 to limit reset.

[0035] In order to increase the stability of equipment installation and transmission between parts, the negative pressure cylinder 21 is fixedly installed on the side wall of the experimental cabin 1 through the mounting plate 10; the side wall of the experimental cabin 1 is fixedly provided with a slide groove 28, and the other end of the moving plate 22 is slidably arranged in the slide groove 28. The contact surface between one end of the moving plate 22 and the limit rod assembly is a slope surface; the end of the slope surface has a groove for limiting the limit rod assembly.

[0036] The present invention adopts a flexible limit action to perform the limit operation, such as Figure 4 As shown, specifically, the limit rod assembly includes a rotating plate 30 and a limit rod 32; the bottom of the rotating plate 30 is fixedly connected to the second driving gear 26 through a rotating shaft 29; the limit rod 32 is connected to one end of the rotating plate 30 through a spring 31; when the limit rod 32 rotates to the slope surface of the movable plate 22, it cooperates with the groove in a certain state.

[0037] Since the rotation of the screw rod 24 and the swinging of the limit rod 32 are not movements of the same amplitude, a certain transmission ratio is required. In order to ensure the existence of a certain transmission ratio, the driving gear group includes a transmission gear 16 and a driving gear 17 fixed to each other; the cylinder 14 is fixedly mounted in the experimental cabin 1 through the cylinder frame 10; the driving gear 17 is rotationally connected to the cabin door 3; the transmission gear 16 is meshed with the control rack 15; the two sides of the driving gear 17 are respectively meshed with one side of one end of the two execution rack groups 18; two limit sleeves 27 are fixedly arranged on the inner side of the cabin door 3; the two execution rack groups 18 are respectively slidably arranged in the limit sleeves 27.

[0038] Preferably, in order to further achieve a sealing effect, a circumferential sealing strip 12 is provided on the inner side of the hatch 3, and one side of the hatch 3 is hinged to one side of one end of the experimental cabin 1 through a hinge 5; a door lock 6 is provided on the other side of the hatch 3.

[0039] In addition to providing a vacuum state through a vacuum pump, the present invention also includes cooling through a refrigeration device, heating up the electric heating wire component, and deoxygenation through an oxygen screening component.

[0040] The oxygen screening assembly includes a motor 9, a rotating plate 11 and a plurality of oxygen screening tubes 10; the motor 9 is fixedly arranged in the experimental chamber 1, and one end of the rotating plate 11 is fixedly connected to the output shaft of the motor 9; the plurality of oxygen screening tubes 10 are fixedly arranged at the end of the rotating plate 11, and when the motor 9 drives the rotating plate 11 to rotate, the pipe mouth of the oxygen screening tube 10 is connected to one end of the vacuum pump pipeline 7 in the experimental chamber 1; the plurality of oxygen screening tubes 10 are built with different amounts of oxygen molecular sieves.

[0041] A refrigeration device is arranged in the equipment cabin 2 , a heat exchange pipe 13 connected to the refrigeration device is buried at the bottom of the experimental cabin 1 ; and a heating wire is buried in the side wall of the experimental cabin 1 .

[0042] In order to facilitate experimental observation, an observation window 4 is provided on one side of the experimental cabin 1.

[0043] In this embodiment, in order to control the internal oxygen, temperature and air pressure, the device has built-in multiple sensor groups to accurately monitor the environmental data in the cabin. Specifically, it includes a high-precision oxygen concentration sensor for real-time monitoring of the oxygen concentration in the cabin; a temperature sensor for monitoring the temperature changes in the cabin; and an air pressure sensor for measuring and recording the air pressure value in the cabin. These sensors work together to ensure that the environmental conditions in the cabin meet the needs of experiments or training, and provide accurate and reliable data support for scientific researchers or athletes.

[0044] In addition, a ventilation fan can be installed on the other side of the experimental cabin 1 to achieve the purpose of regular external gas exchange.

[0045] The experimental cabin proposed in the present invention can provide an experimental environment of high and low temperature, low pressure and low oxygen. When the low-pressure environment is constructed by a vacuum pump, the vacuum pump is controlled by a solenoid valve and a transmission structure of a gear rack and a transmission structure of a screw moving plate are used to drive the moving plate to move, so that the negative pressure cylinder forms a large negative pressure state. The driving limit rod assembly on the cabin door is synchronously rotated to limit the resetting of the moving plate. The cabin door is tightly fitted to one end of the opening of the experimental cabin under the traction of the negative pressure of the negative pressure cylinder, providing a relatively closed experimental space, reducing air exchange with the outside world and achieving a better stable pressure state. No matter what kind of experimental environment is, it can always maintain a certain pressure, temperature and oxygen content for a long time. During long-term experiments, the number of adjustments to the environmental conditions in the cabin can be reduced, thereby increasing the accuracy of experimental data.

[0046] The present invention assists the transmission structure in actively increasing the fit between the cabin door and the experimental cabin by means of internal pressure reduction, provides a relatively closed experimental space, reduces air exchange with the outside world, and achieves a better pressure stabilization state.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-low temperature, low pressure and low oxygen animal experiment chamber, comprising an equipment chamber (2) and an experiment chamber (1) arranged on the top of the equipment chamber (2); a vacuum pump is arranged in the equipment chamber (2), and the vacuum pump is connected to the experiment chamber (1) through a vacuum pump pipeline (7); characterized in that: One end of the experimental cabin (1) is open and hingedly provided with a cabin door (3); a pre-tightening assembly is arranged inside the cabin door (3); the pre-tightening assembly comprises a cylinder (14), a driving gear set, a control rack (15) and a plurality of symmetrically arranged actuator assemblies; The cylinder (14) is fixedly mounted in the experimental cabin (1) and is connected to the vacuum pump pipeline (7) through the electromagnetic valve (8); the driving gear set is rotatably arranged on the inner side of the cabin door (3); one end of the control rack (15) is fixedly connected to the end of the telescopic rod of the cylinder (14) and meshes with the driving gear set when the cabin door (3) is closed; The actuator assembly comprises an actuator rack assembly (18), a limit rod assembly and a negative pressure assembly; the actuator rack assembly (18) is slidably arranged on the cabin door (3), and has teeth at both ends, and one side of one end thereof is meshed with the driving gear assembly; the negative pressure assembly comprises a screw rod (24), a first driving gear (25), a movable plate (22) and a negative pressure cylinder (21); the first driving gear (25) is rotatably mounted on a side wall of the experimental cabin (1) through a limit plate (23), and is meshed with one side of the other end of the actuator rack assembly (18) when the cabin door (3) is closed; the negative pressure cylinder (21) is fixedly arranged on the side wall of the experimental cabin (1); one end of the screw rod (24) penetrates into the first driving gear (25) and is threadedly matched with the first driving gear (25), and the other end is fixedly connected to one end of the movable plate (22), and the other end of the movable plate (22) is fixedly connected to the piston rod end of the negative pressure cylinder (21); The limit rod assembly is rotatably arranged on the cabin door (3), and its bottom is meshed with the other side of the other end of the execution rack assembly (18) through the second driving gear (26); wherein, when the negative pressure cylinder (21) moves through the moving plate (22) to form a negative pressure state, the limit rod assembly rotates to the front side of the moving plate (22) to limit reset.

2. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1 is characterized in that: The negative pressure cylinder (21) is fixedly arranged on the side wall of the experimental cabin (1) via a mounting plate (10); a slide groove (28) is fixedly arranged on the side wall of the experimental cabin (1), and the other end of the movable plate (22) is slidably arranged in the slide groove (28); The contact surface between one end of the movable plate (22) and the limiting rod assembly is a slope surface; the end of the slope surface has a groove for limiting the limiting rod assembly.

3. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 2 is characterized in that: The limiting rod assembly comprises a rotating plate (30) and a limiting rod (32); the bottom of the rotating plate (30) is fixedly connected to the second driving gear (26) via a rotating shaft (29); the limiting rod (32) is connected to one end of the rotating plate (30) via a spring (31); When the limiting rod (32) rotates to the slope surface of the movable plate (22), it cooperates with the groove in a certain state.

4. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1, characterized in that: The cylinder (14) is fixedly mounted in the experimental cabin (1) via a cylinder frame (10); the driving gear set comprises a transmission gear (16) and a driving gear (17) fixed to each other; the driving gear (17) is rotationally connected to the cabin door (3); the transmission gear (16) is meshed with a control rack (15); and both sides of the driving gear (17) are respectively meshed with one side of one end of two execution rack sets (18); Two limiting sleeves (27) are fixedly arranged on the inner side of the cabin door (3); the two execution rack sets (18) are respectively slidably arranged in the limiting sleeves (27).

5. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1 is characterized in that: A circumferential sealing strip (12) is provided on the inner side of the hatch (3); one side of the hatch (3) is hinged to one side of one end of the experimental cabin (1) via a hinge (5); and a door lock (6) is provided on the other side of the hatch (3).

6. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1, characterized in that: It also comprises an oxygen screening component; the oxygen screening component comprises a motor (9), a rotating plate (11) and a plurality of oxygen screening tubes (10); the motor (9) is fixedly arranged in the experimental chamber (1), and one end of the rotating plate (11) is fixedly connected to the output shaft of the motor (9); the plurality of oxygen screening tubes (10) are fixedly arranged at the ends of the rotating plate (11), and when the motor (9) drives the rotating plate (11) to rotate, the pipe openings of the oxygen screening tubes (10) are connected to one end of the vacuum pump pipeline (7) in the experimental chamber (1); and different amounts of oxygen molecular sieves are built into the plurality of oxygen screening tubes (10).

7. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1 is characterized in that: A refrigeration device is arranged in the equipment cabin (2), and a heat exchange pipe (13) connected to the refrigeration device is buried at the bottom of the experimental cabin (1); and a heating wire is buried in the side wall of the experimental cabin (1).

8. The high-low temperature, low pressure and low oxygen animal experiment chamber according to claim 1 is characterized in that: An observation window (4) is provided on one side of the experimental cabin (1).

Images