Overweight rotating device for experimental animals

Abstract

The present invention discloses an overweight rotating device for experimental animals, comprising a base, a motor, a rotating table, a cage unit, a signal concentrator and a computer, wherein the motor is installed on the base, and the rotating table is installed on the output shaft of the motor; the signal concentrator is installed on the rotating table, and the signal concentrator communicates wirelessly with the computer through a wireless communication module; multiple cage units are installed circumferentially on the rotating table to make the experimental animals in each cage unit in an overweight state during rotation; each cage unit has a first wireless sensor, and each cage unit monitors the physiological data of the experimental animals through the first wireless sensor; each cage unit is connected to the signal concentrator through a signal line A to transmit the physiological data of the experimental animals to the signal concentrator. The present invention realizes simultaneous measurement of the physiological data of experimental animals in multiple cages by wirelessly transmitting data through wireless sensors, wired transmission of data through signal lines, and wireless transmission of data through wireless communication modules.

Description

Technical Field

[0001] The invention belongs to the field of overweight experimental equipment, and more specifically, relates to an overweight rotating device for experimental animals. Background Art

[0002] As we all know, astronauts suffer from osteoporosis and muscle atrophy due to long-term exposure to microgravity, and need to exercise to help restore muscle and bone mass. On the contrary, a large number of aerospace practitioners are in an overweight environment for days or even months during daily flights due to changes in the mechanical environment caused by maneuvering flights, which leads to changes in the cardiovascular, muscular, skeletal, and vestibular systems of the organism. Vestibular ganglion neurons control five unique end organs to achieve various functions such as posture control, spatial navigation, and autonomic regulation. Since long-term overweight and rotation affect the function of vestibular neurons, they often induce problems such as air sickness, spatial orientation disorders, and loss of consciousness, which directly threaten flight quality and safety. Studying the effects of long-term overweight and rotation on the physiological state of the body, guiding training, and evaluating the stability of human vestibular function have become one of the key research contents in the field of aerospace medicine.

[0003] To study the effects of hypergravity on organisms, a centrifuge arm device is often used to provide normal centripetal acceleration under the action of centrifugal force.

[0004] Aerospace flight personnel are often in an overweight environment due to work requirements, which affects the body's muscle, bone, cardiovascular, vestibular system and other structural functions. With the development of the aerospace industry, attention to the health of industry members and research on the impact of overweight on the body have attracted more and more attention from researchers in the biomedical field. In order to study the impact of hypergravity on the physiological indicators of living organisms, it is necessary to have a device that can provide a hypergravity environment. Among them, the centrifuge system is a useful model for hypergravity experiments. There are many types of centrifuge devices on the market, including desktop centrifuges connected to tissue culture incubators. These conventional centrifuges do not have the function of collecting physiological signals of experimental animals in an overweight environment, or cannot obtain and process the physiological signals of experimental animals, and cannot meet the needs of studying the impact of hypergravity on the physiological indicators of living organisms. Summary of the invention

[0005] In response to the above defects or improvement needs of the prior art, the present invention provides an overweight rotation device for experimental animals, which has a wireless data sensor that performs wired data transmission via a signal line and wireless data transmission via a wireless communication module. Through this wireless-wired-wireless data transmission mode, during the rotation process of an overweight experiment, long-term monitoring of the physiological signal data of experimental animals in multiple cages can be achieved by simultaneous measurement.

[0006] To achieve the above object, according to the present invention, there is provided an overweight rotating device for experimental animals, characterized in that it comprises a base, a motor, a rotating table, a hanging cage unit, a signal concentrator and a computer, wherein:

[0007] The motor is mounted on the base, the output shaft of the motor is vertically arranged and the rotating platform is mounted on the output shaft of the motor;

[0008] The signal concentrator is installed on the rotating platform, and the signal concentrator wirelessly communicates with the computer through a wireless communication module;

[0009] A plurality of cage units for accommodating experimental animals are installed circumferentially on the rotating platform, so that the experimental animals in each cage unit are in an overweight state during rotation;

[0010] Each of the cage units has a first wireless sensor, and each of the cage units monitors the physiological data of the experimental animal through a first wireless sensor;

[0011] Each of the cage units is connected to a signal concentrator via a signal line A to transmit the physiological data of the experimental animal to the signal concentrator.

[0012] Preferably, each of the cage units further comprises a suspension rod, a movable cage box and a signal processor, wherein the upper end of the suspension rod is hinged to the rotating platform through a horizontal hinge shaft, the movable cage box is fixedly mounted on the lower end of the suspension rod, and the signal processor is fixedly mounted on the rotating platform;

[0013] The center line of each hinge shaft is arranged on one side of the regular polygon, so that the movable cage box moves away from the center line of the rotating table under the action of centrifugal force;

[0014] Each of the signal processors is connected to the signal concentrator via a signal line A respectively.

[0015] Preferably, the first wireless sensor is an RFID device and comprises a reader / writer A and a passive electronic tag A for installation on the body of the experimental animal. The reader / writer A is fixedly installed on the movable cage, and the reader / writer A is connected to the signal processor via a signal line B.

[0016] Preferably, an angle sensor is provided between the suspension rod and the rotating table, so as to obtain the acceleration of the movable cage box by detecting the angle between the suspension rod and the rotation center line of the rotating table.

[0017] Preferably, the signal concentrator is installed at the center of the rotating table.

[0018] Preferably, the rotating table includes a rotating arm rod, a turntable and an adapter plate fixedly connected together, the adapter plate is fixedly connected to the rotating shaft of the motor, the rotating arm rod and the turntable are both horizontally arranged and fixed on the adapter plate, the turntable is located above the adapter plate and the rotating arm rod, and the length direction of each rotating arm rod is consistent with the radial direction of the turntable.

[0019] Preferably, the hinge shaft is adjustably mounted on the rotating platform to adjust the distance from the movable cage box to the rotation center line of the turntable.

[0020] Preferably, the hinge shaft adopts an optically adjustable universal support rod and is installed on the rotating arm rod so as to adjust the distance from the movable cage box to the rotation center line of the rotating disk;

[0021] Each of the suspension rods is hinged to the swing arm through a hinge shaft.

[0022] Preferably, it also includes a plurality of second wireless sensors and a plurality of fixed cage boxes installed on the rotating disk;

[0023] The second wireless sensor adopts RFID equipment and includes a reader / writer B and a passive electronic tag B for installation on the body of the experimental animal. A reader / writer B is installed on each fixed cage, and each reader / writer B is connected to a signal processor via a signal line C.

[0024] Preferably, the motor is a forward and reverse motor.

[0025] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0026] 1) The experimental animal overweight rotating device of the present invention has multiple cage units installed on the rotating table. The wireless sensor of each cage unit performs wireless data transmission to monitor the physiological data of the experimental animals. The wired transmission medium such as signal line A is used to perform wired transmission of data between the cage unit and the signal concentrator. The signals of all cage units are transmitted to the signal concentrator through wires for data collection. The data of the signal concentrator is then wirelessly transmitted to the computer through the wireless communication module for processing. Through this wireless (wireless sensor)-wired (signal line A)-wireless (wireless communication module) data transmission mode, during the rotation of the rotating table of the overweight experiment, the physiological data of experimental animals in multiple cages can be measured simultaneously.

[0027] 2) In the experimental animal overweight rotating device of the present invention, each cage unit has a signal processor, and wired data transmission is performed between the signal processor and the signal concentrator through a wired transmission medium such as a signal line B, further enriching the data transmission of wireless (wireless sensor) - wired (signal line B) - wired (signal line A) - wireless (wireless communication module), so that when the rotating table rotates, the signals can be transmitted independently without interfering with each other.

[0028] 3) The overweight rotating device for experimental animals of the present invention uses a passive electronic tag as the wireless sensor, which can realize continuous monitoring. The passive electronic tag does not have a built-in battery, but relies on the radio frequency signal emitted by the RFID reader to obtain energy and activate the circuit in the passive electronic tag to complete the reading and sending of data. It has low cost, small size and long service life, and is particularly suitable for being placed on experimental animals for long-term physiological data measurement, thereby minimizing the impact on the natural activities of the experimental animals and ensuring the reliability of the experimental results.

[0029] 4) The experimental animal overweight rotation device of the present invention can be generally used in research on overweight, rotation, monitoring of animal physiological signals, etc., and plays a vital role in studying problems that bother the public, such as motion sickness and balance disorders, and further promotes research on the effects of overweight on the body and the mechanism of the body's adaptation to overweight.

[0030] 5) The experimental animal overweight rotating device of the present invention realizes the real-time monitoring function of the physiological signals of the experimental animals in the overweight environment, which is convenient for real-time observation of the status of the experimental animals. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 Schematic diagram of the force analysis of the cage box. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figure 1 , Figure 2 , an experimental animal overweight rotating device, comprising a base 1, a motor 2, a rotating platform 3, a plurality of hanging cage units, a signal concentrator 4 and a computer, wherein:

[0035] The motor 2 is mounted on the base 1. The motor 2 is preferably a direct drive motor. The output shaft of the motor 2 is vertically arranged and the rotating platform 3 is mounted on the output shaft of the motor 2 to drive the rotating platform 3 to rotate around a vertical line. The output shaft of the motor 2 is preferably vertically upward, and the rotating platform 3 is mounted on the upper end of the output shaft of the motor 2. The motor 2 is preferably a forward and reverse motor, which can drive the rotating platform 3 to rotate forward and reverse.

[0036] The signal concentrator 4 is installed on the rotating platform 3, and the signal concentrator 4 performs wireless communication with the computer through a wireless communication module. The rotation of the rotating platform 3 does not affect the normal communication between the signal concentrator 4 and the computer.

[0037] A plurality of cage units for accommodating experimental animals are circumferentially mounted on the rotating table 3 so that the experimental animals in each cage unit are in an overweight state during rotation; the plurality of cage units are preferably evenly arranged circumferentially.

[0038] Each of the cage units has a first wireless sensor, and each of the cage units monitors the physiological data of the experimental animals through a first wireless sensor. When the rotating platform 3 drives the cage unit to rotate, the first wireless sensor continuously collects the physiological data.

[0039] Each of the cage units is connected to the signal concentrator 4 via a signal line A to transmit the physiological data of the experimental animal to the signal concentrator 4. After the cage unit continuously obtains the physiological data of the experimental animal through the first wireless sensor, it continuously transmits it to the signal concentrator 4 for aggregation on the signal concentrator 4.

[0040] Furthermore, for each of the cage units, it also has a suspension rod 5, a movable cage box 6 and a signal processor 7. The upper end of the suspension rod 5 is hinged to the rotating table 3 through a horizontal hinge shaft 8. When the rotating table 3 rotates, the suspension rod 5 can rotate around the center line of the hinge shaft 8 under the action of centrifugal force. The lower end of the suspension rod 5 is fixedly installed with the movable cage box 6, and the signal processor 7 is fixedly installed on the rotating table 3.

[0041] The first wireless sensor is preferably an RFID device, and includes a reader / writer A and a passive electronic tag A for installation on the body of the experimental animal, wherein the passive electronic tag A is used to obtain physiological signals of the experimental animal, such as body temperature and / or heartbeat, and the experimental animal can be a mouse. The reader / writer A is fixedly installed on the movable cage box 6, and the reader / writer A is connected to the signal processor 7 via a signal line B, and a reader / writer A of each hanging cage unit is connected to a signal processor 7 via a wired connection. Since it is necessary to monitor the physiological signals of the experimental animals under long-term overweight conditions for several days or even months, in order to ensure the accuracy of the experimental results, the natural activity state of the experimental animals should not be affected as much as possible, so a wireless sensor is preferred. If the wireless sensor directly sends data to the receiving interrupt, in order to ensure the stable collection and transmission of data during the monitoring period of several days to several months, an active wireless sensor with a larger battery capacity must be used. In this way, the influence of the sensor's own weight on the experimental animals cannot be ignored, and the natural activity state of the experimental animals is still affected. The preferred solution uses passive RFID sensing equipment, which does not require load power and is not affected by monitoring time. However, due to its near-field communication characteristics, it cannot stably and continuously send physiological data to the computer data processing center outside the overweight device. Therefore, the reader A is set in the cage unit, using the limited space of the cage unit to achieve near-field communication, and using the relatively fixed position between the cage unit and the signal concentrator to achieve stable power supply and signal transmission. The signal concentrator forwards the data to the computer data processing center outside the overweight device through wireless communication, thereby avoiding the entanglement of wired signal lines on the continuous, high-speed rotating overweight rotating device. The sensor based on RFID passive electronic tags cooperates with the wireless-wired-wireless data transmission mode to achieve stable transmission of monitoring data in the continuous high-speed rotating experimental animal overweight rotating device, while minimizing the impact on the natural activities of the experimental animals and ensuring the reliability of the experimental results.

[0042] The center line of each hinge shaft 8 is arranged on one side of the regular polygon, so that the movable cage 6 moves away from the center line of the rotating platform 3 under the action of centrifugal force; the rotation center line of the rotating platform 3 preferably passes through the center of the regular polygon. When the rotating platform 3 rotates, the suspension rod 5 rotates around the center line of the hinge shaft 8, and the movable cage 6 at the lower end of the suspension rod 5 is rotated upward under the action of centrifugal force. The greater the centrifugal force, the greater the acceleration, and the higher the height of the movable cage 6 rises.

[0043] The signal processor 7 of each cage unit is connected to the signal concentrator 4 via a signal line A, and the cage unit is connected to the signal concentrator 4 via a wired connection.

[0044] The signal concentrator 4 is mounted on the rotating table 3, and the signal concentrator 4 communicates wirelessly with the computer through a wireless communication module. The signal concentrator 4 transmits the concentrated data to the computer for processing by wireless transmission. The signal transmission between the signal concentrator 4 and the computer preferably adopts wireless Bluetooth (Bluetooth 4.0). The signal concentrator 4 is preferably powered by a battery to avoid the use of a power cord to power the power cord and cause the power cord to be entangled during the rotation process.

[0045] Furthermore, an angle sensor is provided between the suspension rod 5 and the rotating platform 3 to obtain the acceleration of the movable cage 6 by detecting the angle between the suspension rod 5 and the rotation center line (vertical line) of the rotating platform 3. The greater the acceleration during overweight, the greater the angle. There is a corresponding relationship between the angle and the acceleration. By detecting the angle, the acceleration (overweight state) can be roughly obtained.

[0046] Furthermore, the signal concentrator 4 is installed at the center of the rotating table 3, so that the signal can be better transmitted between the signal concentrator 4 and the computer, and the transmission is more stable.

[0047] Furthermore, it also includes a guardrail, which surrounds the base 1, the base 1 and the cage unit to prevent the movable cage box 6 from falling off and flying out to injure people during the rotation process. The guardrail can be made of acrylic material.

[0048] Furthermore, the rotating table 3 includes a rotating arm rod 9, a turntable 10 and an adapter plate 11 fixedly connected together, the adapter plate 11 is fixedly connected to the rotating shaft of the motor 2, the rotating arm rod 9 and the turntable 10 are both horizontally arranged and fixed on the adapter plate 11, the turntable 10 is located above the adapter plate 11 and the rotating arm rod 9, and the length direction of each rotating arm rod is consistent with the radial direction of the turntable 10.

[0049] Furthermore, the hinge shaft 8 is adjustably mounted on the rotating platform 3 to adjust the distance between the movable cage and the rotation centerline of the turntable 10. The hinge shaft 8 is adjustable in position on the rotating platform 3 and is fixed after adjustment, so that the rotation radius of the movable cage can be adjusted.

[0050] Furthermore, it also includes a plurality of second wireless sensors and a plurality of fixed cages 12 circumferentially fixed on the turntable 10. The fixed cages 12 are preferably installed on the upper surface of the turntable 10. The second wireless sensor is preferably an RFID device, and includes a reader B and a passive electronic tag B for installation on the body of the experimental animal. Each of the fixed cages 12 is respectively installed with a reader B, and each of the reader B is respectively connected to a signal processor 7 through a signal line C. Through the acquired physiological signals, the health status of the experimental animals in the fixed cages 12 can be compared with that of the experimental animals in the movable cages 6.

[0051] Furthermore, each of the suspension rods 5 is hinged to the swing arm rod 9 through a hinge shaft 8, and the hinge shaft 8 adopts an optically adjustable universal support rod, which is installed on the swing arm rod 9 to adjust the distance from the movable cage box 6 to the rotation center line of the turntable 10. The optically adjustable universal support rod can conveniently adjust the relative position of the suspension rod 5 and the swing arm rod, and allows the suspension rod 5 to rotate in one dimension.

[0052] The present invention has developed a set of experimental animal overweight rotation device based on the parameter requirements of overweight devices in animal experiments under overweight conditions. By adjusting the speed of the motor 2 and the fixed position of the hinge shaft 8, the experimental animal is provided with a force greater than 1G and less than or equal to 5G (G=9.8m / s 2 ) adjustable acceleration to conduct overweight experiments. This device can work for a long time and can continuously collect signals for 12 hours, so as to observe and record the changes in body temperature, heartbeat, etc. of animals in a long-term overweight environment.

[0053] In order to monitor the physiological changes of animals under hypergravity, the present invention uses the most commonly used transgenic mice in biology as experimental animals. In addition to realizing the adjustable acceleration greater than 1G and less than or equal to 5G, it also realizes the real-time monitoring function of animal physiological signals under hypergravity environment, which is convenient for real-time observation of animal status. The system can realize simultaneous measurement of mice in multiple cages, and the motor 2 can realize forward and reverse reciprocating motion. By controlling the speed and adjusting the arm distance, the mouse is provided with an adjustable hypergravity condition within the range of greater than 1G and less than or equal to 5G.

[0054] The invention has three rotation modes: forward, reverse, and forward and reverse switching. It can provide a maximum angular velocity of 120rpm and an acceleration greater than 3G. Under the action of centrifugal force, the synthetic centripetal acceleration is perpendicular to the direction of motion. a , force analysis as Figure 2 shown.

[0055] The rotation radius of the known movable cage 6 r is 0.3 m, the acceleration due to gravity is G, and the required acceleration of the movable cage 6 is 3G, so the centripetal acceleration along the normal direction of the turntable isa for:

[0056]

[0057] (2-1)

[0058]

[0059] (2-2)

[0060]

[0061] (2-3)

[0062] Where G: Gravitational acceleration (m / s 2 );ω: angular velocity of the turntable (rad / s);T: time (s)

[0063] In summary, if the acceleration of the movable cage 6 is to be greater than 3G, the rotation speed of the motor 2 needs to be at least 92.3 rpm.

[0064] The model is simplified into the motion of a rigid body rotating around an axis. Assume that the total mass of the rotating table 3 and all its accessories is 20 kg (actually less than 20 kg), the maximum speed n is 120 rpm, the rotation radius r is 300 mm, the acceleration time t is 1.6 s, and the moment of inertia is J (kg·m 2 ), the torque is M (N·m), the angular acceleration is β (rad / s 2 ).

[0065]

[0066] (2-4)

[0067]

[0068] (2-5)

[0069]

[0070] (2-6)

[0071] In summary, the maximum torque M required by the motor 2 is 5.652 N·m.

[0072] Therefore, considering factors such as speed and torque, the present invention selects a motor 2 with a maximum speed of 4rps, a continuous maximum torque of 17N·m, and an instantaneous maximum output torque of 45N·m. All technical parameters of the selected motor 2 meet the use requirements.

[0073] The base 1 is an aluminum alloy plate of 800mm×800mm×15mm (length×width×height) used to support the entire device and provide a stable foundation; the supporting part is used to connect the base 1 and the rotating part, and the base 1 and the motor 2 are connected by an optical stainless steel support rod to ensure the balance and stability of the rotating part; the turntable 10 of the rotating table 3 is made of acrylic material, and the upper surface of the turntable 10 is used to carry the fixed cage box 12; the rotating arm rod 9 of the connecting part is fixed with the adapter plate 11 for easy disassembly and replacement, and the end of the rotating arm rod is connected to the suspension rod 5 through an optically adjustable universal support rod, which is convenient for disassembly of the suspension rod 5 and the movable cage box 6, and the rotation radius of the movable cage box 6 can be adjusted, and the acceleration on the movable cage box 6 can be increased or decreased at the same angular velocity. The movable cage box 6 can rotate freely around the hinge shaft 8, and the rotating table 3 can also drive the movable cage box 6 to rotate. A reader is fixed on the movable cage box 6 for receiving the electromagnetic signal emitted by the passive electronic tag A, and converting it into physiological signal data through data processing. The fixed cage box 12 on the upper surface of the turntable 10 and the movable cage box 6 mounted on the rotating table 3 can be used for control experiments and animal behavior training; in order to avoid the problem of line entanglement during rotation, the signal processor 7 is fixed on the rotating arm rod 9 of the rotating table 3; the movable cage box 6, the fixed cage box 12, the outer shell of the signal processor 7, and the outer shell of the signal concentrator 4 are all made by 3D printing in order to reduce weight and facilitate modification.

[0074] Testing and Application

[0075] After the installation is completed, the device is tested for forward, reverse, forward and reverse reciprocating rotation. After the rotation test is normal, the mouse with the passive electronic tag is placed in a cage, the light is turned off and it is left for 30 minutes. It rotates in the same direction for 90 minutes and then stops to test the data collection function. Table 1 shows the collected data. From the data in the table, it can be seen that the data collection function is normal, and it can also be clearly seen that the body temperature of the mouse changes in the overweight environment, as shown in Table 1.

[0076] Table 1 Body temperature changes of mice

[0077]

[0078] The experimental animal hypergravity rotating device of the present invention has a wide range of applications and can work continuously for 12 hours at a time. It can be used for behavioral training of pre-experimental animals and studying the adaptation mechanism of living organisms and the effects on the body in a hypergravity environment.

[0079] The experimental animal overweight rotating device of the present invention has a stable structure and can provide an overweight environment and a collection function for collecting physiological signals. It can work continuously for 12 hours at a time. The acceleration of the cage is greater than 1G and less than or equal to 5G, which is adjustable and meets the design requirements. This makes it very suitable for experiments in some hypergravity environments. In a hypergravity environment, the physiological characteristics of living organisms often undergo a series of changes, and overweight experimental conditions are required for research. It also provides some references and support for space exploration and astronauts' health. The device provides an important guarantee for the smooth progress of overweight experiments.

[0080] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is 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. An overweight rotating device for experimental animals, characterized in that: It includes a base, a motor, a rotating table, a cage unit, a signal concentrator and a computer, wherein: The motor is mounted on the base, the output shaft of the motor is vertically arranged and the rotating platform is mounted on the output shaft of the motor; The signal concentrator is installed on the rotating platform, and the signal concentrator wirelessly communicates with the computer through a wireless communication module; A plurality of cage units for accommodating experimental animals are installed circumferentially on the rotating platform, so that the experimental animals in each cage unit are in an overweight state during rotation; Each of the cage units has a first wireless sensor, and each of the cage units monitors the physiological data of the experimental animal through a first wireless sensor; Each of the cage units is connected to a signal concentrator via a signal line A to transmit physiological data of the experimental animal to the signal concentrator; Each of the cage units further comprises a suspension rod, a movable cage box and a signal processor, wherein the upper end of the suspension rod is hinged to the rotating platform through a horizontal hinge shaft, the movable cage box is fixedly mounted on the lower end of the suspension rod, and the signal processor is fixedly mounted on the rotating platform; The center line of each hinge shaft is arranged on one side of the regular polygon, so that the movable cage box moves away from the center line of the rotating table under the action of centrifugal force; Each of the signal processors is connected to the signal concentrator via a signal line A respectively.

2. The experimental animal overweight rotating device according to claim 1, characterized in that: The first wireless sensor is an RFID device, and includes a reader / writer A and a passive electronic tag A for installation on the body of the experimental animal. The reader / writer A is fixedly installed on the movable cage, and the reader / writer A is connected to the signal processor via a signal line B.

3. The experimental animal overweight rotating device according to claim 1, characterized in that: An angle sensor is arranged between the suspension rod and the rotating platform to obtain the acceleration of the movable cage box by detecting the angle between the suspension rod and the rotation center line of the rotating platform.

4. The experimental animal overweight rotating device according to claim 1, characterized in that: The signal concentrator is installed at the center of the rotating table.

5. The experimental animal overweight rotating device according to claim 1, characterized in that: The rotating table includes a rotating arm rod, a turntable and an adapter plate fixedly connected together, the adapter plate is fixedly connected to the rotating shaft of the motor, the rotating arm rod and the turntable are both horizontally arranged and fixed on the adapter plate, the turntable is located above the adapter plate and the rotating arm rod, and the length direction of each rotating arm rod is consistent with the radial direction of the turntable.

6. The experimental animal overweight rotating device according to claim 5, characterized in that: The hinge shaft is adjustably mounted on the rotating platform to adjust the distance from the movable cage box to the rotation center line of the rotating disk.

7. The experimental animal overweight rotating device according to claim 5, characterized in that: The hinge shaft adopts an optically adjustable universal support rod and is installed on the rotating arm rod so as to adjust the distance from the movable cage box to the rotation center line of the rotating disk; Each of the suspension rods is hinged to the swing arm through a hinge shaft.

8. The experimental animal overweight rotating device according to claim 5, characterized in that: Also includes a plurality of second wireless sensors and a plurality of fixed cage boxes mounted on the rotating disk; The second wireless sensor adopts RFID equipment and includes a reader / writer B and a passive electronic tag B for installation on the body of the experimental animal. A reader / writer B is installed on each fixed cage, and each reader / writer B is connected to a signal processor via a signal line C.

9. The experimental animal overweight rotating device according to claim 1, characterized in that: The motor is a forward and reverse motor.

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