Animal experiment system with the function of timely collecting and removing excreta of experimental animals

Abstract

An animal experiment system with the function of timely collecting and removing the excrement of experimental animals, comprising: when the set excrement removal time is reached, the main controller controls the buffer room pressurization pipeline to pressurize the buffer room cavity, so that the difference between the air pressure value detected by the air pressure sensor in the cabin and the air pressure value detected by the air pressure sensor in the buffer room is lower than the set difference, controls the sealing door up and down moving mechanism to drive the movable sealing door to move upward to open, controls the excrement removal mechanism to move its collection tray from the cabin cavity to the buffer room cavity, controls the sealing door up and down moving mechanism to drive the movable sealing door to move downward to close, controls the buffer room decompression pipeline to decompress the buffer room cavity so that the air pressure value detected by the air pressure sensor in the buffer room is normal pressure, and controls the prompting module to prompt the staff, so that the staff opens the small cabin door to take out the collection tray for collecting the excrement of the experimental animals.

Description

Technical Field

[0001] The present invention relates to the technical field of animal experiments, and particularly to an animal experiment system under high-pressure environment, which has the function of timely collecting and removing excreta of experimental animals. Background Art

[0002] During various diving activities, when entering the underwater, personnel will be affected by high air pressure and must follow specific rules, otherwise it is extremely easy to cause pathological damage. Studying the impact of high air pressure on the body and exploring preventive and treatment measures for various diving diseases have become the core tasks of the discipline of hyperbaric medicine. In hyperbaric medicine, conducting animal research is a conventional way to deeply explore the physiological and pathological effects of high-pressure environment on the body and apply new prevention and treatment measures to practice. And this must rely on a pressure chamber, which is an essential equipment for simulating high-pressure environment.

[0003] In a high-pressure environment, in order to ensure the air pressure environment in the high-pressure experimental chamber, the inventors of the present invention used to collect the excreta of experimental animals every day in a previously applied invention patent (Patent Application No. 2023116050033, Patent Name: An Animal Experiment System under High-Pressure Environment). These excreta were collected and stored in the high-pressure experimental chamber, and were not taken out of the high-pressure experimental chamber every day, but were taken out together after the end of an experimental cycle of the experimental animals. This is not conducive to timely detecting the excreta of experimental animals to observe the situation of experimental animals.

[0004] How to achieve the removal of excreta from the high-pressure experimental chamber without affecting the air pressure environment in the high-pressure experimental chamber is the direction of continuous optimization and improvement in the design of the high-pressure chamber. Summary of the Invention

[0005] The present invention aims at the problems and deficiencies existing in the prior art, and provides an animal experiment system with excreta of experimental animals Collect in a timely manner Animal experiment system with removal function.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides an animal experiment system with the function of timely collecting and removing excreta of experimental animals, which includes a high-pressure experiment chamber. It is characterized in that it further includes a main controller and a prompting module. Both the main controller and the prompting module are placed outside the high-pressure experiment chamber. The internal cavity of the high-pressure experiment chamber is isolated into a chamber internal cavity and a buffer chamber cavity by a movable sealing door. The movable sealing door is controlled by a sealing door up-and-down moving mechanism installed in the chamber internal cavity. A movable sealing door is installed on the inner side of the buffer chamber cavity, and a small hatch door that can be manually opened and closed for taking the collection tray is installed on the outer side of the buffer chamber cavity. A bracket is installed in the high-pressure experiment chamber, and an animal experiment cage is detachably installed on the bracket. The bottom of the animal experiment cage is a mesh structure. A excreta removal mechanism, a collection tray moving-in mechanism, and a collection tray centering mechanism for placing the collection tray are installed directly below the animal experiment cage. The excreta removal mechanism is placed on the left and right sides of the movable sealing door, the collection tray moving-in mechanism is placed on the left and right sides of the movable sealing door, and the collection tray centering mechanism is placed on the left side of the movable sealing door. A chamber internal pressure sensor is installed in the chamber internal cavity. The chamber internal cavity is communicated with a chamber internal pressurization pipeline and a chamber internal depressurization pipeline. A buffer chamber pressure sensor is installed in the buffer chamber cavity. The buffer chamber cavity is communicated with a buffer chamber pressurization pipeline and a buffer chamber depressurization pipeline.

[0008] The main controller is used to control the buffer chamber pressurization pipeline to pressurize the buffer chamber cavity when the set excreta removal time is reached, so that the difference between the air pressure value detected by the chamber internal pressure sensor and the air pressure value detected by the buffer chamber pressure sensor is lower than the set difference, control the sealing door up-and-down moving mechanism to drive the movable sealing door to move upward to open, and control the excreta removal mechanism to move the collection tray with the excreta of the experimental animals on it from the chamber internal cavity to the buffer chamber cavity, control the sealing door up-and-down moving mechanism to drive the movable sealing door to move downward to close, control the buffer chamber depressurization pipeline to depressurize the buffer chamber cavity, so that the air pressure value detected by the buffer chamber pressure sensor is normal pressure, and control the prompting module to prompt the staff, so that the staff opens the small hatch door to take out the collection tray with the excreta of the experimental animals.

[0009] The main controller is used to control the buffer chamber pressurization pipeline to pressurize the buffer chamber cavity when receiving the instructions that the small hatch door has been closed and the collection tray has been moved in, so that the difference between the air pressure value detected by the chamber internal pressure sensor and the air pressure value detected by the buffer chamber pressure sensor is lower than the set difference, control the sealing door up-and-down moving mechanism to drive the movable sealing door to move upward to open, and control the collection tray moving-in mechanism to move the collection tray on it from the buffer chamber cavity to the chamber internal cavity, control the sealing door up-and-down moving mechanism to drive the movable sealing door to move downward to close, and then control the collection tray centering mechanism to move the collection tray on the collection tray moving-in mechanism to the excreta removal mechanism, and this collection tray is located directly below the animal experiment cage.

[0010] The positive and progressive effects of the present invention are as follows: Without affecting the air pressure environment inside the high-pressure experimental chamber, the present invention can achieve the timed removal of the excrement of experimental animals from the high-pressure experimental chamber every day, which is conducive to the timely collection and removal of the excrement of experimental animals and the timely detection thereof, so as to observe the conditions of the experimental animals. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the animal experiment system according to a specific embodiment of the present invention.

[0012] Figure 2 and Figure 3 It is a schematic structural diagram of the excrement removal mechanism and the collection tray moving-in mechanism according to a specific embodiment of the present invention. Detailed Embodiments

[0013] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0014] As Figures 1-3 shown, this embodiment provides an animal experiment system with the function of timely collection and removal of the excrement of experimental animals, which includes a high-pressure experimental chamber 1, a main controller and a prompt module (not shown in the figure). The main controller and the prompt module are both placed outside the high-pressure experimental chamber 1, and the prompt module can adopt a prompt lamp or the like.

[0015] The inner cavity of the high-pressure experimental chamber 1 is isolated into a chamber inner cavity 3 and a buffer chamber cavity 4 by a movable sealing door 2. The movable sealing door 2 is controlled by a sealing door up-and-down moving mechanism 5 installed in the chamber inner cavity 3. A movable sealing door 2 is installed on the inner side of the buffer chamber cavity 4, and a small chamber door 6 that can be manually opened and closed for taking the collection tray 7 is installed on the outer side of the buffer chamber cavity 4. A bracket 8 is installed in the high-pressure experimental chamber 1, and an animal experiment cage 9 is detachably installed on the bracket 8. The bottom of the animal experiment cage 9 is a screen structure 10. A excrement removal mechanism, a collection tray moving-in mechanism and a collection tray centering mechanism for placing the collection tray 7 are installed directly below the animal experiment cage 9. The excrement removal mechanism is placed on the left and right sides of the movable sealing door 2, the collection tray moving-in mechanism is placed on the left and right sides of the movable sealing door 2, and the collection tray centering mechanism is placed on the left and right sides of the movable sealing door 2. A chamber air pressure sensor 11 is installed in the chamber inner cavity 3. The chamber inner cavity 3 is communicated with a chamber pressurization pipeline 12 and a chamber decompression pipeline 13. A buffer chamber air pressure sensor 14 is installed in the buffer chamber cavity 4. The buffer chamber cavity 4 is communicated with a buffer chamber pressurization pipeline and a buffer chamber decompression pipeline.

[0016] Among them, the excrement removal mechanism includes an upper discharge conveyor belt 15 and an upper transfer conveyor belt 16 arranged in parallel left and right. The upper discharge conveyor belt 15 is located in the cabin cavity 3, and the upper transfer conveyor belt 16 is located in the buffer chamber cavity 4. The upper discharge conveyor belt 15 consists of two conveyor belts arranged side by side front and back, and the upper transfer conveyor belt 16 consists of two conveyor belts arranged side by side front and back. The collection tray 7 is placed on the upper discharge conveyor belt 15.

[0017] The sealing door up and down movement mechanism 5 includes a telescopic cylinder and a cylinder air supply pipeline. The telescopic rod of the telescopic cylinder is fixed to the top of the movable sealing door 2, and the cylinder air supply pipeline extends out of the cabin cavity 3.

[0018] The collection tray moving-in mechanism includes a lower entry conveyor belt 17 and a lower transfer conveyor belt 18 arranged in parallel left and right. The lower entry conveyor belt 17 is located in the cabin cavity 3, and the lower transfer conveyor belt 18 is located in the buffer chamber cavity 4. The lower entry conveyor belt 17 consists of two conveyor belts arranged side by side front and back, and the lower transfer conveyor belt 18 consists of two conveyor belts arranged side by side front and back. The vertical projection of the two front and back arranged conveyor belts of the lower entry conveyor belt 17 is located in the area between the vertical projections of the two front and back arranged conveyor belts of the upper discharge conveyor belt 15. The distance between the two front and back arranged conveyor belts of the lower entry conveyor belt 17 is smaller than the width of the collection tray 7, and the distance between the two front and back arranged conveyor belts of the upper discharge conveyor belt 15 is smaller than the length of the collection tray 7. The length of the collection tray 7 is greater than the width of the collection tray 7.

[0019] At the middle position between the two conveyor belts of the lower entry conveyor belt 17, a collection tray alignment mechanism is installed. The collection tray alignment mechanism includes a collection tray rotation mechanism 19 and a collection tray lifting mechanism 20 located on the collection tray rotation mechanism 19. The top of the collection tray lifting mechanism 20 is flush with the surfaces of the two conveyor belts of the lower entry conveyor belt 17. The collection tray rotation mechanism 19 is fixed outside the high-pressure test chamber 1. The lifting end of the collection tray lifting mechanism 20 passes through the high-pressure test chamber 1 and is placed in the cabin cavity 3. The contact part between the lifting end of the collection tray lifting mechanism 20 and the high-pressure test chamber 1 is sealed to ensure that there is no air leakage during the lifting process of the collection tray lifting mechanism.

[0020] The bottom of the animal experiment cage 9 is connected with a diversion trough 21 that is wider at the top and narrower at the bottom. The cross-sectional area of the trough opening of the diversion trough 21 is smaller than the cross-sectional area of the tray opening of the collection tray 7. The tray opening of the collection tray 7 is rectangular. The length of the rectangle is greater than the length of the trough opening, and the width of the rectangle is greater than the width of the trough opening. The distance between the two conveyor belts of the upper discharge conveyor belt 15 is smaller than the length of the rectangle, and the distance between the two conveyor belts of the lower entry conveyor belt 17 is smaller than the width of the rectangle.

[0021] The buffer chamber pressurization pipeline includes a buffer chamber pressurization pipe 22 and a buffer chamber pressurization valve 23 arranged on the buffer chamber pressurization pipe 22.

[0022] The buffer room pressure reduction pipeline includes a buffer room pressure reduction pipe 24 and a buffer room pressure reducing valve 25 provided on the buffer room pressure reduction pipe 24.

[0023] When the set excrement removal time is reached, the main controller is used to control the buffer room pressure increasing valve 23 to open, and the buffer room pressure increasing pipe 22 pressurizes the buffer room cavity 4, so that the difference between the air pressure value detected by the cabin air pressure sensor 11 and the air pressure value detected by the buffer room air pressure sensor 14 is lower than the set difference. Then, it controls the telescopic cylinder 5 to drive the movable sealing door 2 to move upward and open, and controls the upper discharge conveyor belt 15 to move the collection tray 7 with the excrement of the experimental animal collected thereon out to the upper transfer conveyor belt 16. Then, it controls the upper transfer conveyor belt 16 to move the collection tray 7 with the excrement of the experimental animal collected thereon from the left side to the right side. Next, it controls the telescopic cylinder 5 to drive the movable sealing door 2 to move downward and close, controls the buffer room pressure reducing valve 25 to open, and the buffer room pressure reduction pipe 24 decompresses the buffer room cavity 4, so that the air pressure value detected by the buffer room air pressure sensor 14 is normal pressure. It controls the prompting module to prompt the staff, so that the staff can open the small hatch 6 to take out the collection tray 7 with the excrement of the experimental animal collected thereon.

[0024] When receiving the instructions that the small hatch is closed and the collection tray is moved in, the main controller is used to control the buffer room pressure increasing valve 23 to open, and the buffer room pressure increasing pipe 22 pressurizes the buffer room cavity 4, so that the difference between the air pressure value detected by the cabin air pressure sensor 11 and the air pressure value detected by the buffer room air pressure sensor 14 is lower than the set difference. Then, it controls the telescopic cylinder 5 to drive the movable sealing door 2 to move upward and open, and controls the lower transfer conveyor belt 18 to move the collection tray 7 thereon out of the buffer room cavity 4 to the lower inlet conveyor belt 17. Next, it controls the telescopic cylinder 5 to drive the movable sealing door 2 to move downward and close, and controls the lower inlet conveyor belt 17 to move the collection tray 7 thereon from the right side to directly below the animal experiment cage 9. Then, it controls the collection tray lifting mechanism 20 to lift the collection tray 7 on the lower inlet conveyor belt 17 upward to be higher than the upper discharge conveyor belt 15, controls the collection tray rotating mechanism 19 to rotate the collection tray 7 by 90°, and then controls the collection tray lifting mechanism 20 to reset, so that the collection tray 7 is placed on the upper discharge conveyor belt 20 and this collection tray 7 is directly below the animal experiment cage 9.

[0025] In addition, the animal experiment system further includes a water supply mechanism. The water supply mechanism includes a water storage tank 26 installed in the inner cavity of the chamber 3 and a water supply basin (not shown in the figure) installed at the bottom inside the animal experiment cage 9. A piston 27 is movably connected inside the water storage tank 26. The piston 27 divides the interior of the water storage tank 26 into an air pressure pushing chamber 28 and a water chamber 29 which are arranged vertically. The air pressure pushing chamber 28 is communicated with a chamber air supply pipeline 30. The chamber air supply pipeline 30 extends out of the inner cavity of the chamber 3. A water outlet pipe 31 is connected below the water chamber 29. One end of the water outlet pipe 31 is installed with a pneumatic valve 32, and the other end is placed inside the experimental animal cage 9. The water supply basin is located directly below the water outlet pipe 31. The pneumatic valve 32 is communicated with a pressure regulating pipeline 33. The pressure regulating pipeline 33 extends out of the inner cavity of the chamber 3. A limiting rod 34 is connected to the piston 27. Scale lines are provided on the outer wall of the limiting rod 34. The top of the limiting rod 34 extends out of the water storage tank 26 and the high-pressure experimental chamber 1 in sequence. A limiting member 35 is threadedly connected to the extended part of the limiting rod 34. A first sealing ring 36 is installed between the limiting rod 34 and the high-pressure experimental chamber 1. A second sealing ring 37 is installed between the limiting rod 34 and the water storage tank 26.

[0026] The main controller is used to control the pressure regulating pipeline 33 to adjust the air pressure in the pipeline to the corresponding set air pressure when the set water supply time is reached, so as to open the pneumatic valve 32, control the chamber air supply pipeline 30 to supply air to the air pressure pushing chamber 28, drive the piston 27 to descend through the air pressure, and then squeeze the water in the water storage tank 26 out through the water outlet pipe 31 and flow it into the water supply basin. When the timed water supply time reaches the corresponding set value, it stops controlling the pressure regulating pipeline 33 to close the pneumatic valve 32 and stops controlling the chamber air supply pipeline 30 to supply air. When the air pressure drives the piston 27 to descend, the limiting rod 34 can be limited by the limiting member 35, and the extrusion amount of water can be adjusted. Manual water supply is also possible. The staff presses the limiting rod 34 outside the high-pressure experimental chamber, and the manual water extrusion amount can be seen through the scale on it. The limiting member 35 limits the extrusion amount of the water storage tank 26.

[0027] Although the specific implementation manners of the present invention have been described above, those skilled in the art should understand that these are only examples. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these implementation manners, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An animal experiment system with the function of timely collecting and removing the excrement of experimental animals, which includes a high-pressure experimental chamber, and is characterized in that, It also includes a main controller and a prompting module, both of which are placed outside the high-pressure test chamber. The internal cavity of the high-pressure test chamber is isolated into a chamber internal cavity and a buffer chamber cavity by a movable sealing door. The movable sealing door is controlled by a sealing door up-and-down movement mechanism installed in the chamber internal cavity. A movable sealing door is installed on the inner side of the buffer chamber cavity, and a small hatch that can be manually opened and closed for taking the collection tray is installed on the outer side of the buffer chamber cavity. A bracket is installed in the high-pressure test chamber, and an animal experiment cage is detachably installed on the bracket. The bottom of the animal experiment cage is a mesh structure. A feces removal mechanism, a collection tray moving-in mechanism, and a collection tray centering mechanism for placing the collection tray are installed directly below the animal experiment cage. The feces removal mechanism is placed on the left and right sides of the movable sealing door, the collection tray moving-in mechanism is placed on the left and right sides of the movable sealing door, and the collection tray centering mechanism is placed on the left side of the movable sealing door. A chamber internal pressure sensor is installed in the chamber internal cavity, and the chamber internal cavity is communicated with a chamber internal pressurization pipeline and a chamber internal decompression pipeline. A buffer chamber pressure sensor is installed in the buffer chamber cavity, and the buffer chamber cavity is communicated with a buffer chamber pressurization pipeline and a buffer chamber decompression pipeline; The main controller is used to control the buffer chamber pressurization pipeline to pressurize the buffer chamber cavity when the set feces removal time is reached, so that the difference between the air pressure value detected by the chamber internal pressure sensor and the air pressure value detected by the buffer chamber pressure sensor is lower than the set difference, control the sealing door up-and-down movement mechanism to drive the movable sealing door to move upward to open, and control the feces removal mechanism to move the collection tray with the feces of the experimental animal collected thereon from the chamber internal cavity to the buffer chamber cavity, control the sealing door up-and-down movement mechanism to drive the movable sealing door to move downward to close, control the buffer chamber decompression pipeline to decompress the buffer chamber cavity, so that the air pressure value detected by the buffer chamber pressure sensor is normal pressure, and control the prompting module to prompt the staff, so that the staff opens the small hatch to take out the collection tray with the feces of the experimental animal collected thereon; The main controller is used to control the buffer chamber pressurization pipeline to pressurize the buffer chamber cavity when receiving the instructions that the small hatch has been closed and the collection tray has been moved in, so that the difference between the air pressure value detected by the chamber internal pressure sensor and the air pressure value detected by the buffer chamber pressure sensor is lower than the set difference, control the sealing door up-and-down movement mechanism to drive the movable sealing door to move upward to open, and control the collection tray moving-in mechanism to move the collection tray thereon from the buffer chamber cavity to the chamber internal cavity, control the sealing door up-and-down movement mechanism to drive the movable sealing door to move downward to close, and then control the collection tray centering mechanism to move the collection tray on the collection tray moving-in mechanism to the feces removal mechanism, and this collection tray is located directly below the animal experiment cage.

2. The animal experiment system with the function of timely collecting and removing excreta of experimental animals as described in claim 1, characterized in that, The feces removal mechanism includes an upper discharge conveyor belt and an upper transfer conveyor belt arranged in parallel left and right. The upper discharge conveyor belt is located in the chamber internal cavity, and the upper transfer conveyor belt is located in the buffer chamber cavity. The upper discharge conveyor belt is composed of two conveyor belts arranged side by side front and back, and the upper transfer conveyor belt is composed of two conveyor belts arranged side by side front and back. The collection tray is placed on the upper discharge conveyor belt; The up-and-down moving mechanism of the sealed door includes a telescopic cylinder and a cylinder air supply pipeline. The telescopic rod of the telescopic cylinder is fixed to the top of the moving sealed door, and the cylinder air supply pipeline extends out of the cabin inner cavity; The buffer room pressurization pipeline includes a buffer room pressurization pipe and a buffer room pressure increasing valve arranged on the buffer room pressurization pipe; The buffer room depressurization pipeline includes a buffer room depressurization pipe and a buffer room pressure reducing valve arranged on the buffer room depressurization pipe; The main controller is used to control the buffer room pressure increasing valve to open when the set excrement removal time is reached. The buffer room pressurization pipe pressurizes the buffer room cavity so that the difference between the air pressure value detected by the air pressure sensor in the cabin and the air pressure value detected by the air pressure sensor in the buffer room is lower than the set difference. It controls the telescopic cylinder to drive the moving sealed door to move upward and open, and controls the upper discharge conveyor belt to move the collection tray with the excrement of the experimental animal on it to the upper transfer conveyor belt, and controls the upper transfer conveyor belt to move the collection tray with the excrement of the experimental animal on it from the left side to the right side. It controls the telescopic cylinder to drive the moving sealed door to move downward and close, controls the buffer room pressure reducing valve to open, and the buffer room depressurization pipe depressurizes the buffer room cavity so that the air pressure value detected by the air pressure sensor in the buffer room is normal pressure. It controls the prompt module to prompt the staff, so that the staff can open the small cabin door to take out the collection tray with the excrement of the experimental animal.

3. The animal experiment system with the function of timely collecting and removing excreta of experimental animals as described in claim 2, characterized in that, The collection tray moving-in mechanism includes a lower entrance conveyor belt and a lower transfer conveyor belt arranged in parallel from left to right. The lower entrance conveyor belt is located in the cabin inner cavity, and the lower transfer conveyor belt is located in the buffer room cavity. The lower entrance conveyor belt is composed of two conveyor belts arranged side by side front and back. The lower transfer conveyor belt is composed of two conveyor belts arranged side by side front and back. The vertical projection of the two front and back arranged conveyor belts of the lower entrance conveyor belt is located in the area between the vertical projections of the two front and back arranged conveyor belts of the upper discharge conveyor belt. The distance between the two front and back arranged conveyor belts of the lower entrance conveyor belt is smaller than the width of the collection tray. The distance between the two front and back arranged conveyor belts of the upper discharge conveyor belt is smaller than the length of the collection tray. The length of the collection tray is greater than the width of the collection tray; A collection tray alignment mechanism is installed at the middle position between the two conveyor belts of the lower entrance conveyor belt. The collection tray alignment mechanism includes a collection tray rotation mechanism and a collection tray lifting mechanism located on the collection tray rotation mechanism. The top of the collection tray lifting mechanism is flush with the surfaces of the two conveyor belts of the lower entrance conveyor belt. The collection tray rotation mechanism is fixed outside the high-pressure test chamber. The lifting end of the collection tray lifting mechanism penetrates through the high-pressure test chamber and is placed in the cabin inner cavity. The contact part between the lifting end of the collection tray lifting mechanism and the high-pressure test chamber is sealed; The main controller is used to control the buffer room pressure increasing valve to open when receiving the instructions that the small hatch is closed and the collection tray is moved in. The buffer room pressure increasing pipe pressurizes the buffer room cavity, so that the difference between the air pressure value detected by the air pressure sensor in the cabin and the air pressure value detected by the air pressure sensor in the buffer room is lower than the set difference. It controls the telescopic cylinder to drive the movable sealing door to move upward and open, and controls the lower transfer conveyor belt to move the collection tray on it out of the buffer room cavity to the lower inlet conveyor belt. Then it controls the telescopic cylinder to drive the movable sealing door to move downward and close, and controls the lower inlet conveyor belt to move the collection tray on it from the right side to directly below the animal experiment cage. Subsequently, it controls the collection tray lifting mechanism to lift the collection tray on the lower inlet conveyor belt upward higher than the upper discharge conveyor belt, controls the collection tray rotating mechanism to rotate the collection tray by 90°, and then controls the collection tray lifting mechanism to reset, so that the collection tray is placed on the upper discharge conveyor belt and this collection tray is located directly below the animal experiment cage.

4. The animal experiment system with the function of timely collecting and removing excreta of experimental animals according to claim 3, wherein, A diversion trough with a wider upper part and a narrower lower part is connected to the bottom of the animal experiment cage. The cross-sectional area of the trough opening of the diversion trough is smaller than the cross-sectional area of the tray opening of the collection tray. The tray opening of the collection tray is rectangular. The length of the rectangle is greater than the length of the trough opening, and the width of the rectangle is greater than the width of the trough opening. The distance between the two conveyor belts of the upper discharge conveyor belt is smaller than the length of the rectangle. The distance between the two conveyor belts of the lower inlet conveyor belt is smaller than the width of the rectangle.

5. The animal experiment system with the function of timely collecting and removing excreta of experimental animals according to claim 1, characterized in that, The prompting module is a prompting lamp.

6. The animal experiment system with the function of timely collecting and removing excreta of experimental animals according to claim 1, characterized in that, The animal experiment system further includes a water supply mechanism. The water supply mechanism includes a water storage tank installed in the cabin cavity and a water feeding basin installed at the bottom inside the animal experiment cage. A piston is movably connected in the water storage tank. The piston divides the water storage tank into an air pressure pushing chamber and a water chamber which are arranged up and down. The air pressure pushing chamber is communicated with a chamber air supply pipeline. The chamber air supply pipeline extends out of the cabin cavity. A water outlet pipe is connected below the water chamber. One end of the water outlet pipe is installed with a pneumatic valve, and the other end is placed inside the experimental animal cage. The water feeding basin is located directly below the water outlet pipe. The pneumatic valve is communicated with a air pressure regulating pipeline. The air pressure regulating pipeline extends out of the cabin cavity. The main controller is used to control the air pressure regulating pipeline to adjust the air pressure in the pipeline to the corresponding set air pressure when the set water feeding time is reached, so that the pneumatic valve opens. It controls the chamber air supply pipeline to supply air to the air pressure pushing chamber, drives the piston to descend through the air pressure, and then squeezes the water in the water storage tank out of the water outlet pipe and flows into the water feeding basin. When the timing water feeding time reaches the corresponding set value, it stops controlling the air pressure regulating pipeline to make the pneumatic valve close and stops controlling the chamber air supply pipeline to supply air.

7. The animal experiment system with the function of timely collecting and removing excreta of experimental animals according to claim 6, characterized in that, A limiting rod is connected to the piston. The top of the limiting rod extends out of the water storage tank and the high-pressure experimental chamber in sequence. A limiting member is threadedly connected to the extended part of the limiting rod. A first sealing ring is installed between the limiting rod and the high-pressure experimental chamber, and a second sealing ring is installed between the limiting rod and the water storage tank.

8. The animal experiment system with the function of timely collecting and removing excreta of experimental animals according to claim 7, characterized in that, Scale lines are arranged on the outer wall of the limiting rod.

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