Small animal sand therapy experimental device

Abstract

The invention discloses a small animal sand therapy experiment device, and belongs to the technical field of animal sand therapy experiments. The sand therapy cabin body is arranged on the base; a partition plate is connected in the sand therapy cabin body so as to divide the interior of the sand therapy cabin body into two sub-spaces which are arranged up and down; the sand bed is adjustably arranged in the subspace at the upper part in the sand therapy cabin body and is detachably connected with the partition plate; the heating assembly is arranged in the sand therapy cabin body and is connected with the sand bed; the cleaning and sterilizing assembly is arranged in the subspace at the lower part in the sand therapy cabin body and is communicated and connected with the base; the ventilation and air exchange assembly is connected with the sand therapy cabin body; the controller is arranged on the base and electrically connected with the heating assembly, the cleaning and sterilizing assembly and the ventilation assembly. By integrating automatic cleaning and sterilization, precise temperature control and environment management systems, the efficiency and repeatability of small animal sand therapy experiments are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of animal sand therapy experimental technology, and specifically relates to a small animal sand therapy experimental device. Background Technology

[0002] In modern medical and life science research, small animal (e.g., mouse, rat) sand therapy experiments are a key means to elucidate the mechanisms of traditional sand therapy (the synergistic effects of thermodynamics, mechanical stimulation, and trace element penetration) and verify its intervention effects on diseases such as osteoarthritis and metabolic syndrome. However, existing small animal sand therapy experimental devices suffer from numerous technical bottlenecks in practical applications, making it difficult to meet the requirements of standardized and precise experiments, and the methods have obvious defects: First, the temperature control precision is poor, heating is uneven, and a stable and uniform sand therapy environment cannot be provided, resulting in low repeatability and poor reliability of experimental data; second, the cleaning and sterilization efficiency is low, requiring manual replacement of the sand after the experiment, which is cumbersome and poses a risk of cross-contamination; third, the lack of integrated environmental management and insufficient ventilation can easily lead to the accumulation of harmful gases such as ammonia in the chamber, affecting animal welfare and the accuracy of experimental results; in addition, the existing devices have a low degree of automation, failing to achieve automatic cleaning, sterilization, and sand recovery of the sand bed, increasing the workload of experimental personnel.

[0003] Therefore, there is an urgent need in this field for an integrated and standardized small animal sand therapy experimental device that can achieve precise temperature control, automated cleaning and sterilization, and efficient ventilation, in order to meet the requirements of modern biomedical research for high precision and high repeatability of experimental conditions. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides a small-scale animal sand therapy experimental device, which adopts the following technical solution:

[0005] A small-scale animal sand therapy experimental device includes:

[0006] Base;

[0007] A sand therapy chamber is mounted on the base; a partition is connected inside the sand therapy chamber to divide the interior of the sand therapy chamber into two sub-spaces arranged vertically.

[0008] A sand bed, which is adjustablely positioned in a sub-space above the sand therapy chamber and detachably connected to the partition;

[0009] A heating component is disposed within the sand therapy chamber and connected to the sand bed;

[0010] A cleaning and sterilization component is disposed in a sub-space below the sand therapy chamber and is connected to the base to clean and sterilize the sand bed and the sand therapy chamber.

[0011] A ventilation and air exchange component is connected to the sand therapy chamber to ventilate the sand therapy chamber.

[0012] The controller is mounted on the base and is electrically connected to the heating component, the cleaning and sterilization component, and the ventilation component.

[0013] Furthermore, the sand bed includes a sand body and a sand bed board arranged from top to bottom.

[0014] Furthermore, the heating assembly includes a heating plate; the heating plate is disposed on the sand bed plate to heat the sand bed plate.

[0015] Furthermore, the cleaning and sterilization assembly includes a lifting box, an electric telescopic rod, a conveyor belt, a collection box, a negative pressure pump, and a delivery pipe; a first opening is provided at one end of the base near the first end of the sand bed board, and the first opening communicates with the sand therapy chamber; the electric telescopic rod is disposed in the first opening, with its fixed end connected to the base and its telescopic end connected to the lifting box to drive the lifting box to move up and down; the collection box is detachably connected to the base and is correspondingly disposed with the lifting box; the negative pressure pump is disposed in the collection box; one end of the delivery pipe communicates with the collection box, and the other end communicates with the second end of the lifting box. The opening is connected to draw sand from the lifting box; a fifth opening is provided at one end of the partition near the first end of the sand bed board, and the fifth opening is corresponding to the first opening, so that the lifting box passes through the fifth opening and rises to the top of the first end of the sand bed board; a third opening is provided at one end of the partition near the second end of the sand bed board, and an electric switch door is provided at the third opening to control the opening and closing of the third opening; the conveyor belt is arranged in the subspace below the sand therapy chamber, with one end corresponding to the third opening and the other end corresponding to the second opening, so as to transport the sand into the lifting box.

[0016] Furthermore, the sand therapy chamber is provided with a fourth opening, and a telescopic plate is slidably provided in the fourth opening, corresponding to the first end of the sand bed; a drive motor is provided on the outside of the sand therapy chamber; the fixed end of the drive motor is connected to the base, and the driving end is connected to the telescopic plate, driving the telescopic plate to extend and retract, thereby opening and closing the gap between the first end of the sand bed and the inner wall of the sand therapy chamber.

[0017] Furthermore, the ventilation and air exchange assembly includes a filter and a fan; the fan is located at the exhaust port of the sand therapy chamber, and the filter is located at the air inlet of the sand therapy chamber.

[0018] Furthermore, it also includes a monitoring component; the monitoring component includes a monitoring camera, a temperature sensor, and a temperature controller; the monitoring camera, the temperature sensor, and the temperature controller are all installed inside the sand therapy chamber and are respectively connected to the controller.

[0019] Beneficial effects:

[0020] (1) The present invention provides a small animal sand therapy experimental device, which realizes precise and stable control of the sand therapy environment. By integrating heating components and monitoring components (temperature sensor, temperature controller) and uniformly controlling them by the controller, the sand bed can be precisely heated, so that the sand temperature is kept highly stable and uniform, which greatly improves the repeatability and reliability of the experiment and provides a standardized tool for mechanism research.

[0021] (2) Significantly improves experimental efficiency and automation: The present invention uses an electric telescopic rod to drive the lifting box to receive old sand, uses a negative pressure pump and conveying pipeline to automatically recover the sand to the collection box, and uses a conveyor belt to automatically replenish new sand, realizing the rapid replacement and cleaning of the sand bed, changing the traditional manual sand replacement mode, preventing cross-contamination, significantly reducing the labor intensity of operators, and improving experimental efficiency.

[0022] (3) The environmental management of the experimental chamber has been optimized: the ventilation components (filter and fan) can effectively remove the hot and humid air and harmful gases in the chamber, while the filtered fresh air is inhaled, providing a healthy and comfortable breathing environment for the experimental animals, ensuring animal welfare, and ensuring that the experimental process is not affected by the harsh environment.

[0023] (4) Reasonable structural design and efficient space utilization: The interior of the cabin is divided into two sub-spaces by partitions, physically separating the sand therapy area from the transmission and conveying area for cleaning and sterilization. This layout not only makes the device compact and highly integrated, but also ensures the cleanliness of the upper experimental space and that the mechanical operation of the lower part does not interfere with each other.

[0024] (5) Enhanced functionality and flexibility of the device: The sliding telescopic plate facilitates quick cleaning of the sand after the experiment; the detachable sand bed board and collection box facilitate individual cleaning, sterilization and maintenance of the components; the use of the monitoring camera allows researchers to remotely observe and record the sand therapy behavior of animals in real time, which is convenient for subsequent behavioral analysis. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the small animal sand therapy experimental device of the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the structure of the small animal sand therapy experimental device of the present invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the overall structure of the small animal sand therapy experimental device of the present invention without sand placed in it;

[0028] Figure 4 This is a schematic diagram of the internal structure of the small animal sand therapy experimental device of the present invention;

[0029] The components include: 1. drive motor; 2. telescopic rod; 3. sand therapy chamber; 4. sand bed board; 5. collection box; 6. base; 7. conveying pipe; 8. controller; 9. partition; 10. sand body; 11. electric telescopic rod; 12. lifting box; 13. conveyor belt; and 14. telescopic plate. Detailed Implementation

[0030] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below.

[0031] Example 1

[0032] Reference Figures 1 to 4 A small-scale animal sand therapy experimental device, comprising:

[0033] Base 6;

[0034] The sand therapy chamber 3 is mounted on the base 6; a partition 9 is connected inside the sand therapy chamber 3 to divide the interior of the sand therapy chamber 3 into two sub-spaces arranged vertically; the sand therapy chamber 3 is made of transparent material to facilitate observation of the experimental animals inside the sand therapy chamber 3.

[0035] A sand bed is adjustablely positioned within a sub-space above the sand therapy chamber 3 and is detachably connected to the partition 9.

[0036] A heating component is disposed inside the sand therapy chamber 3 and connected to the sand bed;

[0037] A cleaning and sterilization component is disposed in the lower subspace inside the sand therapy chamber 3 and is connected to the base 6 to clean and sterilize the sand bed and the sand therapy chamber 3.

[0038] A ventilation and air exchange component is connected to the sand therapy chamber 3 to ventilate the sand therapy chamber 3.

[0039] The controller 8 is mounted on the base 6 and is electrically connected to the heating component, the cleaning and sterilization component, and the ventilation component.

[0040] In this embodiment, the sand bed includes a sand body 10 and a sand bed board 4 arranged from top to bottom.

[0041] In another embodiment, the sand body is a multi-layered sand body structure arranged from top to bottom.

[0042] In this embodiment, the heating component includes a heating plate; the heating plate is disposed on the sand bed plate 4 to heat the sand bed plate 4.

[0043] In this embodiment, the cleaning and sterilization assembly includes a lifting box 12, an electric telescopic rod 11, a conveyor belt 13, a collection box 5, a negative pressure pump, and a conveying pipe 7. A first opening is provided at one end of the base 6 near the first end of the sand bed board 4, and the first opening communicates with the sand therapy chamber 3. The electric telescopic rod 11 is disposed within the first opening, with its fixed end connected to the base 6 and its telescopic end connected to the lifting box 12 to drive the lifting box 12 to move up and down. The collection box 5 is detachably connected to the base 6 and is correspondingly disposed with the lifting box 12. The negative pressure pump is disposed within the collection box 5. One end of the conveying pipe 7 communicates with the collection box 5, and the other end communicates with the lifting box 12. The second opening of the box 12 is connected to draw in the sand 10 inside the lifting box 12; a fifth opening is provided at one end of the partition 9 near the first end of the sand bed plate 4, and the fifth opening is corresponding to the first opening, so that the lifting box 12 passes through the fifth opening and rises to the top of the first end of the sand bed plate 4; a third opening is provided at one end of the partition 9 near the second end of the sand bed plate 4, and an electric switch door is provided at the third opening to control the opening and closing of the third opening; the conveyor belt 13 is located in the subspace below the sand therapy chamber 3, with one end corresponding to the third opening and the other end corresponding to the second opening, so as to transport the sand 10 into the lifting box 12.

[0044] In this embodiment, the sand therapy chamber 3 is provided with a fourth opening, and a telescopic plate 14 is slidably provided in the fourth opening, corresponding to the first end of the sand bed; a drive motor 1 is provided on the outside of the sand therapy chamber 3; the fixed end of the drive motor 1 is connected to the base 6, and the driving end is connected to the telescopic plate 14, driving the telescopic plate 14 to extend and retract, thereby opening and closing the gap between the first end of the sand bed and the inner wall of the sand therapy chamber 3.

[0045] In this embodiment, the ventilation and air exchange component includes a filter and a fan; the fan is located at the exhaust port of the sand therapy chamber 3, and the filter is located at the air inlet of the sand therapy chamber 3.

[0046] In this embodiment, a monitoring component is also included; the monitoring component includes a monitoring camera, a temperature sensor, and a temperature controller; the monitoring camera, the temperature sensor, and the temperature controller are all installed inside the sand therapy chamber 3 and are respectively connected to the controller 8.

[0047] The experimental method of the small animal sand therapy experimental device provided by the present invention is as follows:

[0048] S1. Pre-experiment preparation stage: Device function check and initialization

[0049] S101. Core Component Power-On Check: Connect the device base 6 to the power supply, start the controller 8, and check the status of each component sequentially through the controller interface:

[0050] Monitoring components: Confirm that the monitoring camera (preset position inside the cabin), temperature sensor (embedded in the sand bed area and cabin space), and temperature controller are all working properly and that the screen can display temperature data and camera images in real time. If the data is abnormal (such as no reading from the temperature sensor), the components need to be recalibrated or replaced.

[0051] Cleaning and sterilization components: Test the lifting function of the fixed end of the electric telescopic rod 11 connected to the base and the telescopic end connected to the lifting box 12, and ensure that the lifting box can smoothly pass through the fifth opening of the partition 9 (corresponding to the first opening of the base). At the same time, check the forward and reverse rotation of the conveyor belt 13, the suction of the negative pressure pump (built-in collection box 5), and whether the opening and closing of the electric switch door at the third opening of the partition is flexible.

[0052] Ventilation and air exchange components: Turn on the fan at the exhaust port and observe whether the air speed is uniform. Check whether the filter screen (dust / microorganism prevention) at the air inlet is intact, undamaged or blocked.

[0053] Heating components: Confirm that the heating plate on the sand bed plate 4 is electrically connected to the controller, set the temporary temperature test heating function, and ensure that the heating plate can heat up normally.

[0054] S102. Sand bed assembly and sand filling:

[0055] Disassembly and assembly: Since the sand bed and the partition 9 are detachably connected, first remove the sand bed plate 4 from the upper subspace of the cabin, and fill the sand body 10 according to the experimental requirements;

[0056] Sand bed repositioning: Place the sand bed board 4 filled with sand back into the upper sub-space of the chamber and fix it to the partition 9 (ensure that the angle of the sand bed is adjustable; if a specific animal position is required, adjust the tilt angle of the sand bed through the partition connection structure, such as 0-15°), and close the door of the sand therapy chamber 3.

[0057] In another embodiment, the sand body has a sand body structure of more than 10 layers, which need to be laid in layers, for example, in the order of upper layer medical quartz sand and lower layer composite sand. The total thickness is adjusted according to the animal's body size, such as 3-5 cm thick for mouse experiments.

[0058] S103. Preset experimental parameters:

[0059] Input the required experimental parameters through the controller 8 interface:

[0060] Heating parameters: Set the target temperature of the sand and the heating rate (to prevent the sand temperature from rising suddenly). The temperature controller will work in conjunction with the temperature sensor to provide real-time feedback and ensure that the sand temperature remains stable within the target range.

[0061] Ventilation parameters: Set the fan speed and adjust it according to the space inside the chamber to ensure 5-8 air exchanges per hour. If the experiment requires a specific humidity, it can be adjusted in conjunction with external auxiliary equipment and in-chamber humidity monitoring.

[0062] Monitoring parameters: Set the temperature sensor sampling frequency, camera recording frame rate, and preset the data storage path (controller built-in or external storage device);

[0063] Cleaning and sterilization preset: Set the trigger conditions for sand transfer after the experiment in advance (such as automatically starting the cleaning program after the experiment), and confirm that the collection box 5 is empty and detachably connected to the base 6 to prevent sand leakage.

[0064] S104, Sand Pretreatment and In-cabin Environment Purification

[0065] Sand sterilization:

[0066] If reusable sand is used, the sand must first be placed in the collection box 5, and the electric switch door of the third opening of the partition should be closed in advance to prevent the sand from falling into the lower sub-space. The negative pressure pump and the built-in sterilization function of the collection box (or external sterilization equipment) should be started. After the sand is sterilized, it should be transported to the sand bed in reverse through the conveying pipe 7.

[0067] If it is new sand, it is directly filled and then dried at low temperature by heating plates to remove excess moisture from the sand.

[0068] S105. Pre-purification of the cabin environment:

[0069] Activate the ventilation system and run the fan continuously for N minutes to introduce clean air through the air inlet filter and expel residual dust or odors from the chamber. At the same time, monitor the ambient temperature inside the chamber using a temperature sensor to ensure that the temperature difference between the chamber and the preheated sand is ≤2℃ to avoid stress on animals due to temperature differences after they are placed inside.

[0070] S2, Experimental Process Stage

[0071] S201. Animal placement and cabin sealing

[0072] Adjustment of the telescopic platform and placement of animals:

[0073] The pretreated small animals are placed into the sand bed surface through the placement port (which can be opened and closed) of the sand therapy chamber, ensuring that the animals can move freely and that most of their bodies are in contact with the sand. After the animals are placed in, the drive motor 1 is restarted to reset the telescopic plate 14, closing the gap between the sand bed and the chamber wall to prevent sand leakage or animal escape.

[0074] S201, Functional component linkage startup:

[0075] The experimental mode is activated via controller 8, and all components operate in tandem according to preset logic:

[0076] Heating components: The heating plate heats up at a preset rate, and the temperature sensor collects the sand temperature and the temperature inside the chamber in real time. The data is transmitted to the controller. If the sand temperature exceeds the target value, the temperature controller automatically adjusts the power of the heating plate to maintain a stable sand temperature.

[0077] The telescopic plate 14 is embedded in the fourth opening of the chamber, corresponding to the first end of the sand bed. When the drive motor 1 outside the sand therapy chamber 3 is activated, the telescopic plate 14, connected to the drive end, is adjusted to extend and retract, opening the gap between the first end of the sand bed and the inner wall of the chamber. The controller controls the electric switch door at the third opening of the partition to open, simultaneously activating the conveyor belt 13, causing the used sand 10 inside the sand bed to slide onto the conveyor belt 13 and be transported to the lifting box 12. The electric telescopic rod 11 drives the lifting box 12 to rise from the first opening of the base and the fifth opening of the partition to the top of the first end of the sand bed 4. The telescopic end of the electric telescopic rod 11... The bottom of the lifting box 12 is rotatably connected. The extension length of multiple electric telescopic rods 11 is adjusted so that the lifting box 12 is tilted to one side of the sand bed, so that the sand in the lifting box 12 flows out to the sand bed. This step is repeated to circulate the sand, mix and stir the sand, and heat the sand evenly. After circulating for a certain period of time, the electric switch door at the third opening is closed. After the sand in the lifting box 12 flows out to the sand bed, the lifting box 12 is lowered into the first opening of the base. The drive motor 1 is started so that the telescopic plate closes the gap between the first end of the sand bed and the inner wall of the sand therapy chamber, forming a resting platform for experimental animals, which is convenient for subsequent experimental animal experiments.

[0078] Ventilation and air exchange components: The fan runs continuously, filters the air through the air inlet filter, removes CO2 exhaled by the animals in the cabin and odors from their excrement, and ensures that the oxygen concentration in the cabin is ≥21% to avoid hypoxia in the animals;

[0079] Monitoring components: The monitoring camera records animal behavior in real time (such as activity level and curling frequency), and the temperature sensor records data every 1-5 minutes (stored to the controller). Experimenters can observe in real time through the controller interface. If any abnormality is found in the animal (such as rapid breathing or a sudden rise in body temperature), the experiment can be manually paused.

[0080] S203. Dynamic control during the experiment:

[0081] During the experiment, data was continuously monitored via the controller:

[0082] If the temperature sensor shows that the sand temperature fluctuation exceeds the preset range (e.g., the target is 40℃, but the actual temperature drops to 37℃), the controller will automatically increase the power of the heating plate.

[0083] If the humidity sensor detects that the humidity inside the cabin has increased due to animal activity, the controller can increase the fan speed to accelerate air exchange.

[0084] If the monitoring camera observes stress behaviors in the animals, such as continuously curling up or trying to escape the sand bed, the sand temperature can be manually reduced by 2-3℃ or the experiment duration can be shortened. If necessary, an emergency procedure can be initiated to turn off the heating and increase ventilation.

[0085] S3. Post-experimental processing stage: Animal removal and condition observation

[0086] S301, Component shutdown and hatch opening:

[0087] After the experiment reaches the preset duration, the heating and monitoring components are turned off by the controller 8, and the ventilation components are kept running for n minutes (to reduce the temperature inside the chamber to near room temperature). Then, the drive motor 1 is started, the gap of the telescopic plate 14 is opened, and the animal is taken out of the sand bed with sterile tweezers or gloves and placed in the pre-prepared recovery cage (containing a constant temperature pad to maintain the animal's body temperature). The animal's activity status and whether there are sand particles remaining on the skin are observed, and the animal's postoperative basic data are recorded.

[0088] S302, Sand Cleaning and Sterilization:

[0089] Activate the controller's cleaning and sterilization mode to automatically process the sand according to the following procedure:

[0090] Lifting box rises: The electric telescopic rod 11 drives the lifting box 12 to rise from the first opening of the base to below the conveyor belt 13, ready to receive the sand;

[0091] Sand transfer: The controller controls the electric switch door at the third opening of the partition to open, and at the same time starts the conveyor belt 13 (one end corresponds to the third opening and the other end corresponds to the second opening of the lifting box). Then, the angle of the sand bed is adjusted or guided by the gap of the telescopic plate, so that the used sand 10 in the sand bed slides onto the conveyor belt 13 and is transported by the conveyor belt to the lifting box 12.

[0092] Negative pressure suction and sterilization: Start the negative pressure pump in the collection box 5, connect one end of the delivery pipe 7 to the collection box, and connect the other end to the second opening of the lifting box through the connection port. The sand in the lifting box is sucked into the collection box through the delivery pipe 7.

[0093] The collection box has a sterilization function, which is sterilized by high temperature, high pressure steam or ultraviolet lamp. If new sand needs to be replaced, the collection box can be removed from the base 6, the used sand can be poured out, the collection box can be cleaned and then reset empty.

[0094] S303, Interior and component cleaning and resetting:

[0095] Cleaning inside the cabin: Turn off the negative pressure pump and conveyor belt of the collection box, start the ventilation components and run them continuously for N minutes to remove residual sand and odors inside the cabin. If there is animal excrement left in the cabin, you can open the cabin door and wipe the sand bed board 4 and the cabin wall with sterile wet wipes, and then disinfect with ultraviolet lamps for a certain period of time.

[0096] Component reset: Control the electric telescopic rod 11 to drive the lifting box 12 down into the first opening of the base, close the electric switch door of the third opening of the partition, reset the telescopic plate 14 (close the gap between the sand bed and the bulkhead), and finally turn off the controller 8 and the power supply, and organize the experimental data (export temperature records, camera videos, etc. from the controller).

[0097] The key precautions for this experimental method are as follows:

[0098] (1) Animal welfare fit: Before the experiment, ensure that there are no sharp particles in the sand to prevent scratching the animal's skin. Adjust the angle of the sand bed according to the principle of animal comfort. The duration of a single experiment should not exceed 1 hour to avoid excessive stress on the animal.

[0099] (2) Requirements for sand reuse: If the sand needs to be reused, it must be sterilized and screened (to remove excrement / impurities) after each experiment to ensure the cleanliness of the sand.

[0100] (3) Emergency handling: If a component malfunction occurs during the experiment (such as uncontrolled heating of the heating plate), the power supply to all components can be cut off through the "emergency stop" button on the controller, the hatch can be opened to take out the animal, and the experiment can be restarted after the malfunction is resolved.

[0101] The above are merely preferred embodiments of the present invention and do not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A small-scale animal sand therapy experimental device, characterized in that, include: Base; A sand therapy chamber, which is mounted on the base; The sand therapy chamber is connected to a partition to divide the interior of the sand therapy chamber into two sub-spaces arranged vertically. A sand bed, which is adjustablely positioned in a sub-space above the sand therapy chamber and detachably connected to the partition; A heating component is disposed within the sand therapy chamber and connected to the sand bed; A cleaning and sterilization component is disposed in a sub-space below the sand therapy chamber and is connected to the base to clean and sterilize the sand bed and the sand therapy chamber. A ventilation and air exchange component is connected to the sand therapy chamber to ventilate the sand therapy chamber. The controller is mounted on the base and is electrically connected to the heating component, the cleaning and sterilization component, and the ventilation component.

2. The small animal sand therapy experimental device according to claim 1, characterized in that, The sand bed comprises a sand body and a sand bed board arranged from top to bottom.

3. The small animal sand therapy experimental device according to claim 2, characterized in that, The heating assembly includes a heating plate; the heating plate is disposed on the sand bed plate to heat the sand bed plate.

4. The small animal sand therapy experimental device according to claim 3, characterized in that, The cleaning and sterilization assembly includes a lifting box, an electric telescopic rod, a conveyor belt, a collection box, a negative pressure pump, and a delivery pipe. A first opening is provided at one end of the base near the first end of the sand bed board, and this first opening communicates with the sand therapy chamber. The electric telescopic rod is disposed within the first opening, with its fixed end connected to the base and its telescopic end connected to the lifting box to drive the lifting box to move up and down. The collection box is detachably connected to the base and is correspondingly disposed with the lifting box. The negative pressure pump is disposed within the collection box. One end of the delivery pipe communicates with the collection box, and the other end connects to a second opening in the lifting box. The partition is connected to the sand chamber to draw sand from the lifting box; a fifth opening is provided at one end of the partition near the first end of the sand bed board, and the fifth opening is corresponding to the first opening, so that the lifting box passes through the fifth opening and rises to the top of the first end of the sand bed board; a third opening is provided at one end of the partition near the second end of the sand bed board, and an electric switch door is provided at the third opening to control the opening and closing of the third opening; a conveyor belt is provided in the subspace below the sand therapy chamber, with one end corresponding to the third opening and the other end corresponding to the second opening, so as to transport the sand into the lifting box.

5. The small animal sand therapy experimental device according to claim 4, characterized in that, The sand therapy chamber is provided with a fourth opening, and a telescopic plate is slidably disposed in the fourth opening, corresponding to the first end of the sand bed; a drive motor is disposed on the outside of the sand therapy chamber; the fixed end of the drive motor is connected to the base, and the driving end is connected to the telescopic plate, driving the telescopic plate to extend and retract, thereby opening and closing the gap between the first end of the sand bed and the inner wall of the sand therapy chamber.

6. The small animal sand therapy experimental device according to claim 1, characterized in that, The ventilation and air exchange assembly includes a filter and a fan; the fan is located at the exhaust port of the sand therapy chamber, and the filter is located at the air inlet of the sand therapy chamber.

7. The small animal sand therapy experimental device according to claim 1, characterized in that, It also includes a monitoring component; the monitoring component includes a monitoring camera, a temperature sensor and a temperature controller; the monitoring camera, the temperature sensor and the temperature controller are all installed inside the sand therapy chamber and are respectively connected to the controller.

Images