An adjustable-length wading test aviation life-saving dummy

Abstract

This invention provides an adjustable-length aviation lifesaving dummy for wading tests, relating to the field of wading test technology. It includes: a skullcap with a wireless charging station fixedly mounted on its top; a control box mounted on the bottom of the skullcap; a connecting rod fixedly mounted on the rear bottom of the skullcap, with a clavicle beam fixedly mounted at the bottom of the connecting rod; an H-shaped frame fixedly mounted at the front end of the clavicle beam, with a counterweight barrel fixedly mounted at the bottom of the H-shaped frame; a row of interconnected spinal joints fixedly mounted at the bottom of the clavicle beam, with a hip bone beam hinged at the bottom of the lowest spinal joint. In this invention, parameters are flexibly adjustable, providing comprehensive simulation effects. Height is adjusted via a remote-controlled electric cylinder, and the test skin can be stretched synchronously. Weight can be significantly adjusted by loading and unloading counterweights using the counterweight barrel. Posture is fixed through the rotation of limb joints and other components and a self-locking structure. Simulated hands and feet can also be assembled, allowing for the simulation of different human body states.

Description

Technical Field

[0001] This invention relates to the field of water wading testing technology, and in particular to an adjustable-length aviation life-saving dummy for water wading testing. Background Technology

[0002] Lifesaving dummies are mainly used for aviation lifesaving tests in water-related environments. The tests are numerous, such as impact and vibration. The dummies are installed in a designated space and secured with safety belts to conduct various simulation tests. Sensors are installed under the surface of the dummies' skin to facilitate experimental detection.

[0003] The body length of the mannequins currently in use is fixed, making it inconvenient to adjust them as needed to simulate various groups of people. The adjustable range of weight is also small, making it difficult to make significant weight adjustments for precise simulation. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides an adjustable-length aviation life-saving dummy for wading tests.

[0005] This invention provides an adjustable-length aviation life-saving dummy for wading tests, specifically comprising: a skullcap, with a wireless charging pile fixedly mounted on the top of the skullcap; a control box mounted on the bottom of the skullcap; a connecting rod fixedly mounted on the rear bottom of the skullcap, with a clavicle beam fixedly mounted at the bottom of the connecting rod; an H-shaped frame fixedly mounted at the front end of the clavicle beam, with a counterweight barrel fixedly mounted at the bottom of the H-shaped frame; a row of interconnected spinal joints fixedly mounted at the bottom of the clavicle beam, with a hip beam hinged at the bottom of the lowest spinal joint; and limb joints rotatably mounted on both sides of the clavicle beam. An assembly cylinder is integrally provided at one end of the limb joint near the clavicle beam, and the assembly cylinder is rotatably disposed inside both sides of the clavicle beam in conjunction with bearings; the main limb bone has a rotating shaft at the top center of the main limb bone, which is rotatably disposed inside the limb joint in conjunction with bearings; an electric cylinder is fixedly disposed inside the main limb bone, and an interlimb joint is fixedly disposed at the telescopic end of the electric cylinder; the accessory limb bone has a hinge seat fixedly disposed at the top of the accessory limb bone, and the hinge seat is rotatably disposed outside the interlimb joint; the wrist joint is hinged at the bottom of the accessory limb bone using the same connection method as the top of the accessory limb bone; and test skin is wrapped around all the components.

[0006] Optionally, spring locking teeth A are slidably provided on the inner sides of both ends of the clavicle beam; the outer side of the assembly cylinder is configured as a toothed ring structure, and the tooth surface of the spring locking teeth A fits into the toothed ring structure to form a self-locking structure.

[0007] Optionally, the front end of the H-shaped frame is provided with a flexible tube, and the front end of the flexible tube is provided with a threaded interface, which is fixed to the chest of the test skin; a threaded sealing plug is threadedly connected to the front end of the threaded interface.

[0008] Optionally, the bottom of the spinal joint is integrally provided with a connecting ball head, and the top of the spinal joint has a ball groove structure in the middle that can accommodate the connecting ball head; the lower front end of the spinal joint is integrally provided with a docking seat, and the docking seat has a through hole; a spring telescopic rod is hinged to the upper front end of the spinal joint, and a docking post is fixedly provided at the top of the spring telescopic rod, which can be inserted into the through hole of the docking seat; a support rod is integrally provided at the upper rear end of the spinal joint.

[0009] Optionally, spring locking teeth B are slidably provided on the inner bottom side of each limb joint; a limiting tooth ring is fixedly provided on the top axial end of each main limb bone, the outer side of the limiting tooth ring is a semi-circular tooth surface, and the spring locking teeth B can match the limiting tooth ring; limb joints are also provided at both ends of the hip bone beam.

[0010] Optionally, an inner sliding cylinder is fixedly provided at the top of the interlimb joint, and the inner sliding cylinder slides in a directional manner within the main limb bone.

[0011] Optionally, the bottom of the interlimb joint has a toothed structure, and a spring locking tooth C is slidably provided in the middle bottom of the hinge seat. The toothed surface of the spring locking tooth C fits against the toothed surface of the interlimb joint to form a self-locking structure.

[0012] Optionally, the two ends of the spinal joint are fixedly provided with mimicry ribs, and the two ends of the mimicry ribs are bent forward; an impact tester is fixedly provided on the front side of the end of the mimicry ribs near the spinal joint; pressure sensors are fixedly provided at both ends inside the impact tester; a middle block is slidably provided in the middle of the impact tester; two sets of sliding plates are slidably provided on both sides inside the impact tester; and a spring is provided between the middle block and the sliding plates.

[0013] The beneficial effects are as follows: The parameters are flexible and the simulation effect is comprehensive. Height can be adjusted by remote control electric cylinder, and the test skin can be stretched synchronously. Weight can be greatly adjusted by adding and removing counterweights with the help of counterweight bucket. Posture is fixed by rotating limb joints and other components and self-locking structure. It can also be equipped with simulated hands and feet to simulate different human body states.

[0014] The impact detection is accurate and also provides equipment protection. When impacted or subjected to inertial forces, the middle block moves and compresses the spring, and the pressure sensor can accurately detect the pressure increase. The spring also provides cushioning to prevent the impact from damaging the dummy, ensuring data reliability and extending the equipment's lifespan. The test and power supply are convenient and adaptable to various scenarios. Various detection sensors can be pre-fixed inside the test skin and between the simulated skeleton, and can be installed as needed to adapt to specific tests. The dummy can be fixed in a simple way such as by a safety belt. At the same time, the battery in the control box can be wirelessly charged by connecting to a wireless charging pile, and can also power the sensors to ensure efficient testing. Attached Figure Description

[0015] Figure 1 A three-dimensional cross-sectional view of an embodiment of the present invention is shown; Figure 2 A schematic diagram of the internal structure of an embodiment of the present invention is shown; Figure 3 An embodiment of the present invention is shown. Figure 2 A schematic diagram of the tilting structure; Figure 4 An embodiment of the present invention is shown. Figure 2 A schematic diagram of the rear structure; Figure 5 A three-dimensional structural schematic diagram of the H-shaped frame in an embodiment of the present invention is shown; Figure 6 A schematic diagram of the assembly structure of the spinal joint in an embodiment of the present invention is shown; Figure 7 This diagram shows a three-dimensional sectional view of the main limb bone in an embodiment of the present invention; Figure 8 A schematic diagram of the assembly structure of the impact tester in an embodiment of the present invention is shown.

[0016] List of reference numerals in the attached diagram: 1. Skull cap; 101. Wireless charging station; 2. Control box; 3. Connecting rod; 4. Clavicle beam; 401. Spring locking tooth A; 5. H-shaped frame; 501. Counterweight bucket; 502. Flexible hose; 503. Threaded interface; 504. Threaded sealing plug; 6. Spinal joint; 601. Connecting ball head; 602. Docking seat; 603. Spring telescopic rod; 604. Docking post; 605. Support rod; 7. Hip beam; 8. Limbs 801. Joint; 802. Assembly cylinder; 803. Spring locking tooth B; 9. Main limb bone; 904. Limiting tooth ring; 10. Electric cylinder; 11. Interlimb joint; 1105. Inner slide cylinder; 12. Accessory limb bone; 1206. Hinge seat; 1207. Spring locking tooth C; 13. Wrist joint; 14. Mimicry rib; 15. Impact tester; 1501. Pressure sensor; 1502. Intermediate block; 1503. Slider; 16. Test skin. Detailed Implementation

[0017] To make the objectives, solutions, and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention.

[0018] Example 1: Please refer to the accompanying drawings in the instruction manual. Figures 1 to 8 As shown: This invention proposes an adjustable-length aviation lifesaving dummy for wading tests, comprising: a skull 1, with a wireless charging pile 101 fixedly mounted on the top of the skull 1; a control box 2 mounted on the bottom of the skull 1, the control box 2 housing a wireless signal transceiver and a battery; a connecting rod 3 fixedly mounted on the rear bottom of the skull 1, with a clavicle beam 4 fixedly mounted at the bottom of the connecting rod 3; an H-shaped frame 5 fixedly mounted at the front end of the clavicle beam 4, with a counterweight bucket 501 fixedly mounted at the bottom of the H-shaped frame 5; a row of interconnected spinal joints 6 fixedly mounted at the bottom of the clavicle beam 4, with a hip beam 7 hinged at the bottom of the lowest spinal joint 6; and limb joints rotatably mounted on both sides of the clavicle beam 4. 8; A mounting cylinder 801 is integrally provided at one end of the limb joint 8 near the clavicle beam 4. The mounting cylinder 801 is rotatably disposed inside both sides of the clavicle beam 4 in conjunction with bearings; The main limb bone 9 has a rotating shaft at the top center of the main limb bone 9, which is rotatably disposed inside the limb joint 8 in conjunction with bearings; An electric cylinder 10 is fixedly disposed inside the main limb bone 9, and an interlimb joint 11 is fixedly disposed at the telescopic end of the electric cylinder 10; The accessory limb bone 12 has a hinge seat 1201 fixedly disposed at the top of the accessory limb bone 12, and the hinge seat 1201 is rotatably disposed outside the interlimb joint 11; The wrist joint 13 is hinged at the bottom of the accessory limb bone 12 using the same connection method as the top of the accessory limb bone 12; Test skin 16 is wrapped around each component.

[0019] Among them, spring locking teeth A401 are slidably provided on the inner sides of both ends of the clavicle beam 4; the outer side of the assembly cylinder 801 is set as a toothed ring structure, and the tooth surface of the spring locking teeth A401 fits into the toothed ring structure to form a self-locking structure.

[0020] The front end of the H-shaped frame 5 is connected to a flexible tube 502, and the front end of the flexible tube 502 is connected to a threaded interface 503. The threaded interface 503 is fixed to the chest of the test skin 16. The front end of the threaded interface 503 is threadedly connected to a threaded sealing plug 504.

[0021] The spinal joint 6 has an integrally integrated connecting ball head 601 at its bottom and a ball groove structure at the top center of its top that can accommodate the connecting ball head 601. A docking seat 602 is integrally integrated below the front end of the spinal joint 6, and a through hole is provided in the docking seat 602. A spring telescopic rod 603 is hinged above the front end of the spinal joint 6, and a docking post 604 is fixedly installed at the top of the spring telescopic rod 603. The docking post 604 can be inserted into the through hole of the docking seat 602. A support rod 605 is integrally integrated above the rear end of the spinal joint 6.

[0022] Among them, spring locking teeth B802 are slidably provided on the inner bottom of the limb joint 8; a limiting tooth ring 901 is fixedly provided on the top shaft end of the main limb bone 9, the outer side of the limiting tooth ring 901 is a semi-circular tooth surface, and the spring locking teeth B802 can match the limiting tooth ring 901; limb joints 8 are also provided at both ends of the hip bone beam 7.

[0023] The top of the interlimb joint 11 is fixedly provided with an inner sliding cylinder 1101, which slides in a directional manner within the main limb bone 9.

[0024] The bottom of the interlimb joint 11 has a toothed structure, and a spring locking tooth C1202 is slidably provided in the middle bottom of the hinge seat 1201. The toothed surface of the spring locking tooth C1202 fits against the toothed surface of the interlimb joint 11 to form a self-locking structure.

[0025] The spinal joint 6 has two ends fixedly fitted with mimicry ribs 14, the ends of which are bent forward. An impact tester 15 is fixedly fitted on the front side of the end of the mimicry rib 14 near the spinal joint 6. Pressure sensors 1501 are fixedly fitted at both ends inside the impact tester 15. A middle block 1502 is slidably fitted in the middle of the impact tester 15. Two sets of sliding plates 1503 are slidably fitted on both sides inside the impact tester 15. A spring is fitted between the middle block 1502 and the sliding plates 1503.

[0026] I. Basic Usage and Power Supply Testing In use, first fix various detection sensors between the test skin 16 and the simulated skeleton, then fix the dummy with a safety belt or other means, and the simulation test can begin. The parameters and monitoring methods of various sensors are as follows: Upper neck six-component sensor: Key technical indicators Measuring range: FX: 8800N, FY: 8800N, FZ: 13300N; MX: 280Nm, MY: 280Nm, MZ: 280Nm; Excitation voltage: 2~10V; Impedance: FX: 350Ω, FY: 350Ω, FZ: 700Ω; MX: 350Ω, FY: 350Ω, FZ: 700Ω.

[0027] Function: The test dummy measures the physiological parameters of neck load during impact. It converts the dynamic force and torque on the neck into electrical signals, which are important parameters for verifying neck protection capabilities and for experimental testing.

[0028] Lower neck six-component sensor: Key technical indicators Measuring range: FX: 13000N, FY: 13000N, FZ: 13000N; MX: 450Nm, MY: 450Nm, MZ: 339Nm; Excitation voltage: 2~10V; Function: The test dummy measures the physiological parameters of neck load during impact. It converts the dynamic force and torque on the neck into electrical signals, which are important parameters for verifying neck protection capabilities and for experimental testing.

[0029] Chest accelerometer: Key technical indicators Measurement range: 100g; Excitation voltage: 5~15V; Nonlinearity: 1%; Frequency response: 900Hz; Function: To test the physiological parameters of a dummy during impact, including the acceleration perceived by the human body. It converts the acceleration perceived by the human body due to force and environmental factors into an electrical signal, which is an important physiological parameter in the test.

[0030] Leg force sensor: Key technical indicators Measurement range: 3% quantile dummy, left and right 6672.3N. Excitation voltage: 2~10V; Impedance: 350Ω on both sides.

[0031] Function: To test the physiological parameters of the dummy during the impact process, the load on the knees is converted into electrical signals by the impact and the dynamic force of the leg restraint belt acting on the knees of the dummy. These are important parameters for the test.

[0032] The battery inside control box 2 can be wirelessly charged by connecting to wireless charging station 101, and can also power each group of sensors. The sensors inside test skin 16 can be installed as needed to complete specified tests according to the environment. II. Impact Pressure Detection and Protection The middle block 1502 is kept centered by the springs on both sides. When the dummy is impacted or subjected to inertia, the middle block 1502 moves and compresses the spring in the corresponding direction. The pressure sensor 1501 can detect the pressure increase. At the same time, the spring can buffer the impact and avoid damage. III. Key Parameter Adjustment Height and arm length: The remote-controlled electric cylinder 10 extends, and the skin 16 stretches accordingly, allowing adjustment of the total height and arm length. Weight adjustment: Remove the threaded sealing plug 504 and add water, steel balls, or other counterweights into the counterweight bucket 501 through the threaded interface 503; after testing, the counterweights can be poured out by turning the dummy face down. IV. Posture and Limb Adjustment When adjusting posture, the limb joint 8 can be rotated directly, which is self-locked to the outside of the clavicle beam 4 or hip beam 7 by spring locking tooth A401; circumferential rotation of the main limb bone 9 can adjust the position of the arm, and the limiting tooth ring 901 rotates in contact with the spring locking tooth B802 to achieve limiting and self-locking. The accessory limb bone 12 can rotate outside the interlimb joint 11 and is self-locked by contacting the bottom tooth surface of the interlimb joint 11 with the spring locking tooth C1202; the wrist joint 13 is fixed in the same way, and can be assembled and tested by connecting it to the simulated hand and foot with a screw. This type of self-locking design can ensure the stability of the posture after adjustment.

[0033] Example 2: Based on Example 1, except that the limbs are made of silicone to ensure the stretching effect, the test skin 16 of the test dummy has a certain hardness and tear resistance, and is made of polyurethane material, which is wrapped around the rigid torso. Precise customization of the head and face: Head basic size data 1.1 Maximum head length 187.0±5 188.0 +1.0 yes 1.2 Maximum head width 159.0±5 160.0 +1.0 yes 1.3 Head height 234.0±5 234.0 0.0 yes 1.5 High eye top 114.0±5 113.0 -1.0 yes 1.9 morphological surface length 122.0±5 122.0 0 yes 1.11 minimum width of forehead 128.0±5 127.0 -1.0 yes 1.12 Width 133.0±5 133.0 0 yes 1.16 Interpupillary distance 62.0±5 62.5 +0.5 yes 1.17 Nose height 52.0±5 53.0 +1.0 yes 1.18 long nose 51.0±5 50.0 -1.0 yes 1.19 Nasal width 38.0±5 38.5 +0.5 yes 1.20 Nasal width 30.0±5 30.0 0 yes 1.21 Deep nose 20.0±5 20.0 0 yes 1.22 Deep in the nose 14.0±5 14.2 +0.2 yes 1.26 Nasal-mental distance 108.0±5 110.0 +2.0 yes 1.29 Mouth width 51.0±5 51.0 0 yes 1.32 Appearance with long ears 63.0±5 62.5 -0.5 yes 1.33 Facial features and wide ears 31.0±5 31.2 +0.2 yes 1.34 Wide ears 187.0±5 188.0 +1.0 yes 1.35 Width between the two tragus 146.0±5 146.0 0 yes 1.36 Width between the two mandibular angles 119.0±5 119.0 0 yes 1.37 Nasal tip occipital protuberance 218.0±5 217.5 -0.5 yes 1.38 Tragus occipital protuberance 105.0±5 105.0 0 yes 1.39 Exophthalmos-occipital spur 189.0±5 189.0 0 yes 1.40 Head circumference 572.0±5 570.0 -2.0 yes 1.41 coronal circumference 663.0±5 665.0 +2.0 yes Example 3: Based on Example 1, we performed the following treatment on the surface of the bone structure: (1) Micro-arc oxidation By combining electrolyte with corresponding electrical parameters, a ceramic film mainly composed of base metal oxides is grown on the surface of aluminum alloy under the instantaneous high temperature and high pressure generated by arc light.

[0034] (2) Metal wire drawing Grinding products are a surface treatment method that creates lines on the surface of a workpiece, achieving a decorative effect.

[0035] (3) Sandblasting The impact of high-speed sand flow is used to clean and roughen the surface of the substrate. Compressed air is used as power to form a high-speed jet stream that sprays abrasive materials (copper ore sand, quartz sand, corundum, iron sand, sea sand) onto the surface of the skeleton structure at high speed, causing changes to the outer surface of the skeleton.

[0036] (4) Calendering The finishing process that utilizes the plasticity of fibers under mixed heating conditions to flatten or roll out parallel fine diagonal lines on the surface of the fabric to enhance its luster; after the material is fed in, it is heated and melted, then formed into sheets or films, and then cooled and rolled up.

[0037] Skeletal structural component inspection The inspection methods for skeletal structural components are as follows: (1) Products that fail inspection shall be returned to the factory for repair or reprocessing; (2) Qualified products shall be put into storage and classified. The storage form shall be in triplicate; one copy each for the purchasing manager, the warehouse manager and the archives.

[0038] (3) The assembled structural components are wrapped with PE wrapping film to prevent water and dust and to prevent bumps and knocks.

[0039] The specific usage and function of this embodiment: In this invention, when in use, various sensors that need to be detected are fixed in advance at the position between the inside of the test skin 16 and the simulated skeleton to perform simulated detection. The test can be carried out by fixing the dummy with a safety belt or other installation method. The middle block 1502 is kept centered by the force of the springs on both sides. When the dummy is subjected to impact or inertia, the position of the middle block 1502 will move, which will compress the spring in the direction of movement, increase the force, and feed back to the pressure sensor 1501. The pressure sensor 1501 detects the increase in pressure. The spring also provides a cushioning effect to prevent damage from impact. When it is necessary to adjust the height to simulate different people, the electric cylinder 10 can be extended directly by remote control. The skin 16 is tested to be elastic and can be stretched accordingly. After stretching, the total height of the human body and the arm length can be adjusted. When the weight of the dummy needs to be adjusted, remove the threaded sealing plug 504 and put the counterweight directly into the counterweight bucket 501 through the threaded interface 503. For example, water, steel balls and iron powder can be used to adjust the weight significantly. After the test is completed, turn the dummy face down to pour out the counterweight. When the dummy's posture needs to be adjusted, the limb joint 8 can be rotated directly. The limb joint 8 is self-locked to the outside of the clavicle beam 4 or hip beam 7 by spring locking teeth A401 to maintain its position. The main limb bone 9 can be rotated circumferentially to adjust the arm position. The limiting tooth ring 901 rotates in contact with the spring locking teeth B802 to provide limiting and self-locking effects. The accessory limb bone 12 can be rotated directly outside the interlimb joint 11 and is self-locked by contacting the bottom tooth surface of the interlimb joint 11 by spring locking teeth C1202. The wrist joint 13 is fixed in the same way. The simulated hand or foot can be connected to the outside of the wrist joint 13 by screws to complete the assembly and conduct subsequent tests. The battery in control box 2 is connected to the wireless charging station 101 for wireless charging. The battery in control box 2 is also equipped with circuitry to power each group of sensors. The sensors in test skin 16 are installed as needed to perform specific types of tests in combination with the environment.

Claims

1. An adjustable-length wading test aviation lifesaving dummy, characterized in that, include: A skullcap (1) is provided with a wireless charging station (101) fixedly mounted on its top; a control box (2) is mounted on the bottom of the skullcap (1); a connecting rod (3) is fixedly mounted on the rear side of the bottom of the skullcap (1), and a clavicle beam (4) is fixedly mounted on the bottom of the connecting rod (3); an H-shaped frame (5) is fixedly mounted on the front end of the clavicle beam (4), and a counterweight bucket (501) is fixedly mounted on the bottom of the H-shaped frame (5); a row of spinal joints (6) connected end to end is fixedly mounted on the bottom of the clavicle beam (4), and a hip beam (7) is hinged at the bottom of the lowest spinal joint (6); limb joints (8) are rotatably mounted on both sides of the clavicle beam (4); an assembly cylinder (80) is integrally mounted on one end of the limb joint (8) near the clavicle beam (4). 1) The assembly cylinder (801) is rotatably mounted on both sides of the clavicle beam (4) with bearings; the main limb bone (9) is mounted on the top of the main limb bone (9) with a rotating shaft and bearings, and is rotatably mounted in the limb joint (8); an electric cylinder (10) is fixedly mounted inside the main limb bone (9), and an interlimb joint (11) is fixedly mounted on the telescopic end of the electric cylinder (10); the accessory limb bone (12) is fixedly mounted on the top of the accessory limb bone (12), and the hinge seat (1201) is rotatably mounted outside the interlimb joint (11); the wrist joint (13) is hinged at the bottom of the accessory limb bone (12) in the same way as the top of the accessory limb bone (12); the test skin (16) is wrapped around each component; the clavicle beam (4) has spring locking teeth A (401) slidingly arranged on the inner sides of both ends; the outer side of the assembly cylinder (801) is set as a toothed ring structure, and the tooth surface of the spring locking teeth A (401) fits into the toothed ring structure to form a self-locking structure; the front end of the H-shaped frame (5) is connected to a flexible tube (502), and the front end of the flexible tube (502) is connected to a threaded interface (503), which is fixed to the chest of the test skin (16); the front end of the threaded interface (503) is threadedly connected to a threaded sealing plug (504); the bottom of the spinal joint (6) is integrally provided with a connecting ball head (601), and the top of the spinal joint (6) is a ball groove structure that can accommodate the connecting ball head (601); the lower front end of the spinal joint (6) is integrally provided with a docking seat ( 602), a through hole is provided in the docking seat (602); a spring telescopic rod (603) is hinged above the front end of the spinal joint (6), and a docking post (604) is fixedly provided at the top of the spring telescopic rod (603). The docking post (604) can be inserted into the through hole of the docking seat (602); a support rod (605) is integrally provided on the rear upper part of the spinal joint (6); spring locking teeth B (802) are slidably provided on the bottom inner side of the limb joints (8); a limiting tooth ring (901) is fixedly provided at the top shaft end of the main limb bone (9). The outer side of the limiting tooth ring (901) is a semi-circular tooth surface, and the spring locking teeth B (802) can match the limiting tooth ring (901); limb joints (8) are also provided at both ends of the hip beam (7);Simulated ribs (14) are fixedly installed at both ends of the spinal joint (6), and both ends of the simulated ribs (14) bend forward; an impact tester (15) is fixedly installed on the front side of the end of the simulated ribs (14) near the spinal joint (6); pressure sensors (1501) are fixedly installed at both ends inside the impact tester (15), a middle block (1502) is slidably installed in the middle of the impact tester (15), two sets of sliding plates (1503) are slidably installed on both sides inside the impact tester (15), and a spring is installed between the middle block (1502) and the sliding plates (1503).

2. The adjustable-length aviation life-saving dummy for wading tests as described in claim 1, characterized in that, An inner slide (1101) is fixedly provided at the top of the interlimb joint (11), and the inner slide (1101) slides in a directional manner within the main limb bone (9).

3. The adjustable-length aviation life-saving dummy for wading tests as described in claim 1, characterized in that, The bottom of the interlimb joint (11) has a toothed structure, and a spring locking tooth C (1202) is slidably provided in the middle bottom of the hinge seat (1201). The toothed surface of the spring locking tooth C (1202) fits against the toothed surface of the interlimb joint (11) to form a self-locking structure.

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