An animal pressurized testing platform

Abstract

The utility model relates to an animal pressurization test platform belongs to animal injury detection technical field, and pressurization test platform includes animal fixed platform, stimulating device, three -axis moving frame and controller, stimulating device and three -axis moving frame link to each other with controller respectively, animal fixed platform places below three -axis moving frame, is used for fixing animal in the test process, stimulating device installs on three -axis moving frame, and stimulating device includes stimulating head, and stimulating head is used for carrying out load to the stimulation point of need on the animal and stimulating, three -axis moving frame is used for driving stimulating device linear movement along X -axis, Y -axis, Z -axis, makes stimulating head accurate to reach target point, stimulating device drive stimulating head to press the stimulation point under the predetermined load. The utility model can simulate real pressure environment, real -time monitoring animal physiological index, accurate control experiment condition, carry out multi -angle accurate real -time stimulation to animal, has improved the accuracy and repeatability of animal experiment.

Description

Technical Field

[0001] This utility model relates to the field of animal injury detection technology, and in particular to an animal pressure testing platform. Background Technology

[0002] Animal experiments play a crucial role in biomedical research. They are not only a key component in new drug development and disease mechanism research, but also an important means of driving knowledge innovation in the life sciences. With increasing global investment in scientific research and the improvement of research standards, the demand for high-quality animal experimental equipment is growing rapidly.

[0003] However, traditional animal experimental equipment only restrains animals, which has limitations in simulating real physiological environments and precisely controlling experimental conditions. Research on the rehabilitation of damaged muscle and nerve injuries urgently needs an animal stress testing platform that can simulate real stress environments, monitor animal physiological indicators in real time, and precisely control experimental conditions to improve the accuracy and reliability of animal experiments and better verify the conditions for damaged muscle recovery. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides an animal pressure testing platform that uses a three-axis drive to accurately locate stimulation points, while employing controllable and quantifiable stimulation to promote tendon tissue recovery and verify the optimal stimulation for muscle tissue recovery.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] An animal pressure testing platform includes an animal fixation platform, a stimulation device, a three-axis moving frame, and a controller; the stimulation device and the three-axis moving frame are respectively connected to the controller.

[0007] The animal restraint platform is positioned below the three-axis moving frame and is used to restrain the animal during testing;

[0008] The stimulation device is mounted on the triaxial moving frame, and the stimulation device includes a stimulation head, which is used to apply a load to the stimulation points on the animal that need to be stimulated.

[0009] The three-axis moving frame is used to drive the stimulation device to move linearly along the X-axis, Y-axis, and Z-axis, so that the stimulation head accurately reaches the target point; the stimulation device drives the stimulation head to press down on the stimulation point with a predetermined load.

[0010] Furthermore, the three-axis moving frame includes a Y-axis assembly, a column, an X-axis assembly, and a Z-axis assembly;

[0011] The Y-axis assembly includes two Y-axis slide rails, the animal fixing platform is located between the two Y-axis slide rails, and a first actuator is installed at one end of each Y-axis slide rail; the column is slidably installed on the Y-axis slide rail, and the first actuator is used to drive the column to move along the Y-axis slide rail in the Y-axis direction;

[0012] The X-axis assembly includes a second actuator, an X-axis slide rail, and a Z-axis fixing plate; the X-axis slide rail is mounted on two columns, the second actuator is mounted on one end of the X-axis slide rail, and the Z-axis fixing plate is slidably mounted on the X-axis slide rail; the second actuator drives the Z-axis fixing plate to move along the X-axis slide rail in the X-axis direction.

[0013] The Z-axis assembly includes a third actuator, a Z-axis slide rail, and a drive fixing plate; the Z-axis slide rail is vertically mounted on the Z-axis fixing plate, the third actuator is mounted on the top of the Z-axis slide rail, and the drive fixing plate is slidably mounted on the Z-axis slide rail; the third actuator drives the drive fixing plate to move along the Z-axis slide rail in the Z-axis direction; the stimulation device is mounted on the drive fixing plate.

[0014] Furthermore, the first actuator, the second actuator, and the third actuator are all linear electromagnetic actuators.

[0015] Furthermore, the stimulation device also includes a rotary motor, a connecting bracket, a clamp, a pressure sensor, and a force sensor; the rotary motor is mounted on the three-axis moving frame via the connecting bracket; the stimulation head is connected to the output shaft of the rotary motor via the clamp;

[0016] The pressure sensor and the force sensor are respectively mounted on the connecting bracket. The rotary motor, the pressure sensor, and the force sensor are respectively connected to the controller. The pressure sensor is used to collect stimulation pressure in real time, and the force sensor is used to collect the force on the animal in real time. At the same time, the pressure sensor and the force sensor feed back the pressure data and force parameters to the controller.

[0017] Furthermore, the lower part of the chuck is provided with a first blind hole coaxially along the axial direction, and two sliding tracks are symmetrically provided on the side wall of the chuck. The sliding tracks are inverted U-shaped grooves. The upper part of the stimulation head is provided with sliding ears on both sides. The upper part of the stimulation head extends into the first blind hole and slides into the sliding track through the sliding ears to connect with the chuck. A spring is installed between the stimulation head and the chuck.

[0018] Furthermore, a second blind hole is provided coaxially at the top of the stimulation head; the bottom end of the spring is fitted into the second blind hole.

[0019] Furthermore, the animal fixing platform includes a turntable and a fixing bracket; the fixing bracket consists of a flat plate and legs, with multiple legs evenly distributed around the flat plate, the flat plate being mounted on the turntable via the legs, and the fixing bracket being able to rotate 360° around the turntable.

[0020] Furthermore, the plate is provided with a plurality of rectangular slots, and the plurality of rectangular slots are arranged in a matrix.

[0021] Furthermore, the turntable consists of an inner ring and an outer ring, with the outer ring fitted onto the inner ring and capable of rotating around the inner ring; the lower end of the support leg is connected to the outer ring.

[0022] Furthermore, the pressure testing platform also includes a base plate and support legs; the animal fixing platform and the three-axis moving frame are respectively mounted on the base plate; a plurality of support legs are evenly distributed and mounted under the base plate to support the pressure testing platform.

[0023] The beneficial effects of this utility model are:

[0024] The animal pressure testing platform provided by this invention achieves precise stimulation point positioning through three-axis drive technology, and at the same time uses controllable and quantifiable pressure stimulation to promote the recovery of tendon tissue.

[0025] This invention improves the automation control and data collection and analysis efficiency of the pressure testing platform by using controllers, pressure sensors, force sensors, etc., enabling the pressure testing platform to more accurately simulate the real physiological environment, thereby more accurately assessing the physiological response and tendon recovery of animals.

[0026] The stimulation device of this invention employs a retractable structure to gently stimulate muscle tissue. The stimulation head is slidably connected to the clamp via a sliding track, facilitating easy assembly and efficient replacement. The structure of the stimulation head can be designed according to the animal's stimulation points to meet the pressure testing needs of animals of different body sizes, ensuring the animal's stability and comfort during the testing process.

[0027] Based on effective fixation, this invention enables the fixed support to rotate 360° via a turntable. The controller controls the stimulation device to apply quantifiable pressure stimulation to the animal from various directions, corresponding to different degrees of muscle recovery. This provides the basis for animal experiments before implementing differentiated solutions for different human subjects.

[0028] This invention uses a controller to control a three-axis moving frame to move the stimulation device precisely along the X, Y, and Z axes, so that the stimulation head accurately reaches the stimulation point. Attached Figure Description

[0029] Figure 1This is an axonometric schematic diagram of the animal pressure testing platform of this utility model;

[0030] Figure 2 This is a schematic diagram of the fixed platform structure in this utility model;

[0031] Figure 3 This is a schematic diagram of the stimulation device in this utility model;

[0032] Figure 4 This is a schematic diagram of the bottom plate of this utility model;

[0033] Figure 5 This is a schematic diagram of the three-axis moving frame in this utility model;

[0034] Wherein: 1-Animal fixing platform, 11-Turntable, 111-First fixing hole, 12-Fixing bracket, 121-First mounting hole, 122-Rectangular groove, 2-Stimulation device, 21-Rotary motor, 22-Connecting bracket, 221-Vertical groove hole, 222-Second fixing hole, 23-Clamp, 231-Motor connecting hole, 232-First blind hole, 233-Slide track, 24-Spring, 25-Stimulation head, 251-Sliding ear, 252-Second blind hole, 3-Base plate, 31 - Third fixing hole, 32- Fourth fixing hole, 4- Support foot, 5- Three-axis moving frame, 51- Y-axis assembly, 511- Fifth fixing hole, 52- Column, 521- Slider, 522- Fixing screw, 523- L-shaped connector, 53- X-axis assembly, 531- Second actuator, 532- X-axis slide rail, 533- Z-axis fixing plate, 54- Z-axis assembly, 541- Third actuator, 542- Z-axis slide rail, 543- Drive fixing plate, 5431- Second mounting hole. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of this application, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] The directional terms such as above, below, left, right, front, and back used in this application are based on the positional relationships shown in the attached drawings. Different attached drawings may result in different positional relationships, therefore they should not be interpreted as limitations on the scope of protection.

[0037] In this utility model, the terms "installation," "connection," "interlocking," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a connection that allows communication, a direct connection, or an indirect connection through an intermediate medium. They can also refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0038] This embodiment describes an animal pressure testing platform that uses triaxial drive technology to achieve precise stimulation point positioning and uses controllable and quantifiable pressure stimulation to test the effect of pressure stimulation on animal rehabilitation.

[0039] like Figure 1 As shown, the testing platform includes an animal fixation platform 1, a stimulation device 2, a base plate 3, support legs 4, a three-axis moving frame 5, and a controller. The animal fixation platform 1 and the three-axis moving frame 5 are respectively mounted on the base plate 3. The stimulation device 2 is located at the moving end of the three-axis moving frame 5, above the animal fixation platform 1. Multiple support legs 4 are evenly distributed below the base plate 3 via threaded connections, supporting the testing platform on an operating table or the ground. The support legs 4 are height-adjustable via threaded connections to ensure the levelness of the base plate 3. The stimulation device 2 and the three-axis moving frame 5 are respectively connected to the controller. Under the control of the controller, the three-axis moving frame 5 accurately moves the stimulation device 2 above the position to be stimulated, and the stimulation device 2 stimulates the target point on the animal with a predetermined pressure.

[0040] The animal restraint platform 1 is used to restrain the animal during the test, such as... Figure 2 As shown, the animal fixation platform 1 includes a turntable 11 and a fixing bracket 12.

[0041] The turntable 11 consists of an inner ring and an outer ring, with the inner ring being a U-shaped circular structure. Multiple first fixing holes 111 are evenly distributed on the inner ring for fixing it to the base plate 3 with bolts. The outer ring is fitted onto the inner ring and can rotate around it. The inner end of the outer ring is placed within the U-shaped groove of the inner ring. The inner ring remains fixed during rotation. When different positions of the animal need to be stimulated, simply rotating the outer ring with external force will move the stimulation position below the stimulation device 2, reducing the operation time required for the three-axis moving frame 5 to move the stimulation device 2.

[0042] The fixing bracket 12 consists of a flat plate and legs. Multiple legs are evenly distributed around the flat plate, with the upper ends of the legs fixedly connected to the edge of the flat plate. The lower ends of the legs have first mounting holes 121, through which they are bolted to the outer ring. In this embodiment, the legs adopt an L-shaped structure for easy connection to the turntable 11. The flat plate has multiple rectangular slots 122 arranged in a matrix, facilitating the binding of animals with straps during experiments. The fixing bracket 12 in this embodiment is a stainless steel bracket with high strength.

[0043] Stimulation device 2 simulates different physiological conditions or environmental stresses by quantitatively controlling pressure and stimulation intensity to provide pressure stimulation to animals. For example... Figure 3 As shown, the stimulation device 2 includes a rotary motor 21, a connecting bracket 22, a clamp 23, a spring 24, and a stimulation head 25. A pressure sensor and a force sensor are mounted on the connecting bracket 22. The pressure sensor collects real-time pressure data from the stimulation head 25, and the force sensor collects the force exerted on the animal's stimulation point. The rotary motor 21, pressure sensor, and force sensor are connected to a controller. Under the control of the controller, the rotary motor 21 can rotate according to a predetermined program, allowing the testing platform to stimulate the animal from multiple angles in real time. The pressure sensor collects the stimulation pressure in real time, and the force sensor collects the force exerted on the animal in real time. Simultaneously, the sensors feed back the pressure data and force parameters to the controller.

[0044] The connecting bracket 22 consists of a vertical plate and an L-shaped plate, with the L-shaped plate located at the bottom of the vertical plate, and the two are integrated into one unit. The vertical plate has a matrix of vertical slots 221 for bolt connection to the three-axis moving frame 5. The vertical plate of the L-shaped plate has multiple second fixing holes 222, and the rotary motor 21 is placed on the L-shaped plate and bolted to it through the second fixing holes 222.

[0045] The chuck 23 is used to mount the stimulation head 25. Its upper part has a motor connection hole 231 for connecting the chuck 23 to the output shaft of the rotary motor 21. The lower part of the chuck 23 has a first blind hole 232 coaxially along the axial direction for assembling the spring 24 and the stimulation head 25. The rotary motor 21 adjusts the downward pressure angle of the stimulation head 25 through the chuck 23.

[0046] Two sliding tracks 233 are symmetrically arranged on the side wall of the clamp 23 at the first blind hole 232 for mounting the stimulation head 25. The sliding tracks 233 are inverted U-shaped grooves with different lengths on both sides. The bottom opening of the longer side groove extends to the bottom of the clamp 23, and the top of the shorter side groove is higher than the top of the longer side groove.

[0047] The stimulation head 25 has a conical structure with a gradually decreasing diameter from top to bottom. Symmetrical lugs 251 are provided on both sides of its upper part. In this embodiment, the size of the lugs 251 matches the slide rail 233, allowing them to slide along the slide rail 233. The upper part of the stimulation head 25 extends into the first blind hole 232, allowing the lugs 251 to enter the long side groove of the slide rail 233. When the stimulation head 25 rotates, causing the lugs 251 to slide into the short side groove of the slide rail 233, the stimulation head 25 is connected to the clamp 23. In this embodiment, the stimulation head 25 is mounted on the clamp 23 via the slide rail 233, making the installation and replacement of the stimulation head 25 simpler.

[0048] A second blind hole 252 is coaxially provided at the top of the stimulation head 25, and the bottom end of the spring 24 is fitted into the second blind hole 252. When the stimulation head 25 is inserted into the first blind hole 232, the spring 24 is pressed between the stimulation head 25 and the clamp 23. When the pressure testing platform presses the stimulation head 25 onto the stimulation point of the animal to apply pressure, the combined action of the slide rail 233 and the spring 24 can reduce the vibration of the stimulation device 2, preventing the stimulation point from deviating from the predetermined position due to vibration. In addition, in this embodiment, the spring force of the spring 24 can be used to speed up the disassembly of the stimulation head 25, thereby improving the replacement efficiency of the stimulation head 25.

[0049] Furthermore, in this embodiment, the bottom end of the stimulation head 25 matches the shape and size of the animal stimulation point. The structure and size of the bottom end of the stimulation head 25 can be designed or selected according to the stimulation point. Generally, a conical structure with a diameter of 2mm, 4mm, 6mm, or 8mm is sufficient to meet the needs of most animal experiments. The stimulation head 25 adopts a 3D-printed telescopic structure and can rotate 270° together with the clamp 23, enabling multi-angle stimulation of muscle tissue. Under the action of the spring 24, it provides a gentler stimulation of muscle tissue. The material used to print the stimulation head 25 is resin, which ensures the strength of the stimulation head 25 while maintaining its light weight.

[0050] In this embodiment, the base plate 3 serves as the foundation of the entire pressure testing platform and also as the operating platform for animal pressure testing. It is made of durable materials (such as aluminum alloy plates and steel plates), which are high in strength, pressure-resistant, and shock-resistant, ensuring stable pressure testing operations.

[0051] like Figure 4 As shown, the base plate 3 has symmetrically arranged third fixing holes 31 at its four corners for mounting support feet 4. Multiple fourth fixing holes 32 are symmetrically distributed on the left and right sides of the base plate 3 for fixing the three-axis moving frame 5.

[0052] The three-axis moving frame 5 is used to drive the stimulation head 25 to move precisely along the X, Y, and Z axes, so that the stimulation device 2 is moved to above the animal stimulation point, and the position information of the stimulation head 25 is fed back to the controller in real time to adjust the moving speed and position of the stimulation head 25 in real time.

[0053] like Figure 5 As shown, the three-axis moving frame 5 includes a Y-axis assembly 51, a column 52, an X-axis assembly 53, and a Z-axis assembly 54.

[0054] The Y-axis assembly 51 includes two Y-axis slide rails. Each of the two Y-axis slide rails is provided with a plurality of fifth fixing holes 511 that match the fourth fixing hole 32. The two Y-axis slide rails are symmetrically fixed to the base plate 3 by bolts using the fourth fixing hole 32 and the fifth fixing hole 511.

[0055] The column 52 is slidably mounted on the Y-axis slide rail via the slider 521. A first actuator is installed at the end of the Y-axis slide rail to drive the slider 521 to move the column 52 along the Y-axis slide rail to a suitable position, thereby realizing the Y-axis movement of the stimulation head 25.

[0056] The slider 521 has a threaded hole on one side. When the column 52 slides along the Y-axis slide rail to a suitable position, the fixing screw 522 is screwed into the threaded hole so that the tightening nut of the fixing screw 522 is close to the Y-axis slide rail, thus fixing the column 52 on the Y-axis slide rail.

[0057] In addition, the column 52 can be fixedly connected to the slider 521 via the L-shaped connector 523, which can enhance the connection stability between the column 52 and the slider 521 to ensure the reliability of the test results.

[0058] The X-axis assembly 53 includes a second actuator 531, an X-axis slide rail 532, and a Z-axis fixing plate 533. The X-axis slide rail 532 is mounted on two columns 52. The second actuator 531 is mounted on one end of the X-axis slide rail 532 and connected to a controller. The Z-axis fixing plate 533 is slidably mounted on the X-axis slide rail 532. Under the control of the controller, the second actuator 531 drives the Z-axis fixing plate 533 to move along the X-axis slide rail 532 to a suitable position, thereby realizing the X-axis movement of the stimulation head 25.

[0059] The Z-axis assembly 54 includes a third actuator 541, a Z-axis slide rail 542, and a drive fixing plate 543. The Z-axis slide rail 542 is vertically mounted on the Z-axis fixing plate 543. The third actuator 541 is mounted on the top of the Z-axis slide rail 542 and connected to the controller. The drive fixing plate 543 is slidably mounted on the Z-axis slide rail 542. Under the control of the controller, the third actuator 541 drives the drive fixing plate 543 to move along the Z-axis slide rail 542 to a suitable position. The drive fixing plate 543, as the moving end of the three-axis moving frame 5, drives the stimulation head 25 to move in the Z-axis, thereby applying pressure to the stimulation point.

[0060] Multiple second mounting holes 5431 that match the vertical slot holes 221 are symmetrically provided on the drive fixing plate 543. The connecting bracket 22 bolts the stimulation device 2 to the drive fixing plate 543 through the vertical slot holes 221 and the second mounting holes 5431.

[0061] In this embodiment, the first actuator, the second actuator 531, and the second actuator 541 can be linear electromagnetic actuators, so that the stimulation device 2 in the pressure test platform can be moved linearly along the Y-axis, X-axis, and Z-axis through the controller.

[0062] Taking the compression test of animal tendon tissue rehabilitation using a stimulation head 25 with a bottom diameter of approximately 8.0 mm as an example, this embodiment illustrates the use of the compression testing platform to conduct compression tests on animals. Healthy rats and rats with tendon injuries were selected and divided into six groups: ① Normal control group (Control); ② Model group (Model); ③ Low mechanical stimulation group (Low); ④ Medium mechanical stimulation group (Medium); ⑤ High mechanical stimulation group (High); ⑥ Positive control group (Positive). Groups ③ to ⑥ used the compression testing platform of this embodiment.

[0063] The pressure testing platform was used in the experiment as follows:

[0064] 1. The rat is fixed in a supine position on the base plate 3, and the rat's lower limbs are fixed to the fixation bracket 12 through the rectangular groove 122 with the fixation strap. The fixation bracket 12 can be rotated 360° around the outer ring of the turntable 11 with the help of external force, so that the position to be stimulated is moved to the bottom of the stimulation device 2. During the rotation, the inner ring remains fixed.

[0065] 2. Place the heat pack under the rat to maintain its body temperature;

[0066] 3. Select an appropriate size stimulation head 25 according to the required stimulation area and precision of the rat's hind limbs, and correctly assemble it onto the clamp 23 to ensure a stable and reliable connection that can accurately transmit pressure. Set the test pressure parameters and target point coordinates on the controller. The pressure parameters include the magnitude of the pressure, the application method (such as periodic load, constant load, etc.), and the duration of the load. At the same time, the controller sets relevant parameters such as stimulation frequency and stimulation intensity according to experimental needs.

[0067] 4. The controller uses the Chomp algorithm for optimal path planning, controls the three-axis moving frame 5 to move the stimulation device 2 to the target point coordinates, so that the stimulation head 25 accurately reaches the experimental accurate point (i.e., the stimulation point). Under the control of the controller, the stimulation device 2 drives the stimulation head 25 to slowly press down with a predetermined load (such as 5.0N force). At the same time, the overall tissue deformation of the stimulated limb is visualized and the skeletal muscle compression image of the pressing depth is collected by the musculoskeletal ultrasound probe to calculate the tissue strain of the skeletal muscle and to perform periodic load pressure.

[0068] 5. The pressure sensor and force sensor collect the load pressure output by the stimulation head 25 and the force on the stimulation point in real time, and transmit the pressure data to the controller in real time. The controller automatically generates reports and force feedback parameters; after multiple experiments, experimental data are produced.

[0069] 6. The six groups of experiments were compared horizontally, and the recovery of the same rat under different stress stimuli was analyzed vertically to find the correlation between the rat's recovery and the stress test.

[0070] The restraint straps and warmers used in the experiment were adjustable in size to accommodate animals of different body sizes and to reduce stress response.

[0071] Although the principles of this utility model have been described in detail above with reference to preferred embodiments, those skilled in the art should understand that the above embodiments are merely illustrative explanations of the implementation of this utility model and are not intended to limit the scope of this utility model. The details in the embodiments do not constitute a limitation on the scope of this utility model. Any obvious changes, such as equivalent transformations or simple substitutions, based on the technical solution of this utility model without departing from its spirit and scope fall within the protection scope of this utility model.

Claims

1. An animal pressure testing platform, characterized in that, The pressure testing platform includes an animal fixation platform (1), a stimulation device (2), a three-axis moving frame (5), and a controller; the stimulation device (2) and the three-axis moving frame (5) are respectively connected to the controller; The animal fixation platform (1) is placed below the three-axis moving frame (5) and is used to fix the animal during the test. The stimulation device (2) is mounted on the triaxial moving frame (5). The stimulation device (2) includes a stimulation head (25), which is used to apply a load to the stimulation point on the animal that needs to be stimulated. The three-axis moving frame (5) is used to drive the stimulation device (2) to move linearly along the X-axis, Y-axis and Z-axis, so that the stimulation head (25) accurately reaches the target point; the stimulation device (2) drives the stimulation head (25) to press down on the stimulation point with a predetermined load.

2. The animal pressurized testing platform of claim 1, wherein, The three-axis moving frame (5) includes a Y-axis assembly (51), a column (52), an X-axis assembly (53), and a Z-axis assembly (54); The Y-axis assembly (51) includes two Y-axis slide rails. The animal fixing platform (1) is located between the two Y-axis slide rails. A first actuator is installed at one end of the Y-axis slide rail. The column (52) is slidably installed on the Y-axis slide rail. The first actuator is used to drive the column (52) to move along the Y-axis slide rail. The X-axis assembly (53) includes a second actuator (531), an X-axis slide rail (532), and a Z-axis fixing plate (533). The X-axis slide rail (532) is mounted on two columns (52), the second actuator (531) is mounted on one end of the X-axis slide rail (532), and the Z-axis fixing plate (533) is slidably mounted on the X-axis slide rail (532). The second actuator (531) drives the Z-axis fixing plate (533) to move along the X-axis slide rail (532) in the X-axis direction. The Z-axis assembly (54) includes a third actuator (541), a Z-axis slide rail (542), and a drive fixing plate (543); the Z-axis slide rail (542) is vertically mounted on the Z-axis fixing plate (533), the third actuator (541) is mounted on the top of the Z-axis slide rail (542), and the drive fixing plate (543) is slidably mounted on the Z-axis slide rail (542); the third actuator (541) drives the drive fixing plate (543) to move along the Z-axis slide rail (542) in the Z-axis direction; the stimulation device (2) is mounted on the drive fixing plate (543).

3. The animal pressurized testing platform of claim 2, wherein, The first actuator, the second actuator (531) and the third actuator (541) are all linear electromagnetic actuators.

4. The animal pressurized testing platform of claim 1, wherein, The stimulation device (2) also includes a rotary motor (21), a connecting bracket (22), a clamp (23), a pressure sensor, and a force sensor; the rotary motor (21) is mounted on the three-axis moving frame (5) via the connecting bracket (22); the stimulation head (25) is connected to the output shaft of the rotary motor (21) via the clamp (23); The pressure sensor and the force sensor are respectively mounted on the connecting bracket (22). The rotary motor (21), the pressure sensor and the force sensor are respectively connected to the controller. The pressure sensor is used to collect stimulation pressure in real time, and the force sensor is used to collect the force on the animal in real time. At the same time, the pressure sensor and the force sensor feed back the pressure data and force parameters to the controller.

5. The animal pressure testing platform according to claim 4, characterized in that, The lower part of the clamp (23) is provided with a first blind hole (232) coaxially along the axial direction. Two sliding tracks (233) are symmetrically provided on the side wall of the clamp (23). The sliding tracks (233) are inverted U-shaped grooves. The upper part of the stimulation head (25) is provided with sliding ears (251) on both sides. The upper part of the stimulation head (25) extends into the first blind hole (232) and slides into the sliding track (233) through the sliding ears (251) to connect with the clamp (23). A spring (24) is installed between the stimulation head (25) and the clamp (23).

6. The animal pressurized testing platform of claim 5, wherein, A second blind hole (252) is provided coaxially at the top of the stimulation head (25); the bottom end of the spring (24) is fitted into the second blind hole (252).

7. The animal pressurized testing platform of claim 1, wherein, The animal fixing platform (1) includes a turntable (11) and a fixing bracket (12); the fixing bracket (12) consists of a flat plate and legs, with multiple legs evenly distributed around the flat plate, the flat plate being mounted on the turntable (11) via the legs, and the fixing bracket (12) being able to rotate 360° around the turntable (11).

8. The animal pressurized testing platform of claim 7, wherein, The plate is provided with a plurality of rectangular slots (122), and the plurality of rectangular slots (122) are arranged in a matrix.

9. The animal pressure testing platform according to claim 7, characterized in that, The turntable (11) consists of an inner ring and an outer ring. The outer ring is fitted onto the inner ring and can rotate around the inner ring. The lower end of the support leg is connected to the outer ring.

10. The animal pressurized testing platform of claim 1, wherein, The pressure testing platform also includes a base plate (3) and support feet (4); the animal fixing platform (1) and the three-axis moving frame (5) are respectively installed on the base plate (3); a plurality of support feet (4) are evenly installed under the base plate (3) to support the pressure testing platform.

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