Length-adjustable aviation lifesaving dummy for wading test

Abstract

The invention provides a length-adjustable aviation lifesaving dummy for a wading test, and relates to the technical field of wading tests, the length-adjustable aviation lifesaving dummy comprises a head cover bone, the top of the head cover bone is fixedly provided with a wireless charging pile; a control box is erected at the bottom of the head cover framework; a connecting rod is fixedly erected on the rear side of the bottom of the head cover bone; a clavicle beam is fixedly arranged at the bottom of the connecting rod; an H-shaped frame is fixedly arranged at the front end of the clavicle beam, and a counterweight barrel is fixedly arranged at the bottom of the H-shaped frame; a row of spine joints connected end to end are fixedly arranged at the bottom of the clavicle beam, and a hipbone beam is hinged to the bottom of the lowest spine joint; parameter adjustment is flexible, the simulation effect is comprehensive, the height is adjusted through the remote control electric cylinder, and the tested skin can be stretched synchronously; the weight can be greatly adjusted by loading and unloading the counterweight through the counterweight barrel; postures are fixed through rotation of parts such as limb joints and a self-locking structure, simulated hands and feet can be assembled, and different human body states can be simulated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wading test, in particular to an aviation lifesaving dummy with adjustable length for wading test. BACKGROUND

[0002] The lifesaving dummy is mainly used for aviation lifesaving test in wading environment, and various simulation tests can be carried out by fixing the dummy in a specified space with a safety belt. Sensors are installed under the skin surface of the dummy for convenient experimental detection.

[0003] The length of the currently used dummy is fixed, and it is inconvenient to adjust the length according to needs, simulate various groups of people, and adjust the weight in a small range. SUMMARY

[0004] Therefore, the present application provides an aviation lifesaving dummy with adjustable length for wading test.

[0005] The present application provides an aviation lifesaving dummy with adjustable length for wading test, which specifically comprises: a head cap bone, a wireless charging pile is fixedly arranged at the top of the head cap bone; a control box is arranged on the bottom of the head cap bone; a connecting rod is fixedly arranged on the rear side of the bottom of the head cap bone, and a clavicle beam is fixedly arranged at the bottom of the connecting rod; an H-shaped frame is fixedly arranged at the front end of the clavicle beam, and a counterweight barrel is fixedly arranged at the bottom of the H-shaped frame; a series of spine joints are fixedly arranged at the bottom of the clavicle beam; a hip beam is hingedly arranged at the bottom of the lowermost spine joint; limb joints are rotatably arranged on both sides of the clavicle beam; a mounting cylinder is integrally arranged at one end of the limb joint close to the clavicle beam, and the mounting cylinder is rotatably arranged in the inside of the clavicle beam through a bearing; a main limb bone is rotatably arranged in the limb joint through a rotating shaft and a bearing arranged at the top middle of the main limb bone; an electric cylinder is fixedly arranged in the inside of the main limb bone, and an inter-limb joint is fixedly arranged at the extension end of the electric cylinder; a secondary limb bone is fixedly arranged at the top of the secondary limb bone, and the hinged seat is rotatably arranged outside the inter-limb joint; a wrist joint is hingedly arranged at the bottom of the secondary limb bone in the same connection manner as the top of the secondary limb bone; and a test skin is wrapped outside each component.

[0006] Optionally, spring lock teeth A are slidably arranged at the inner sides of both ends of the clavicle beam; the outside of the mounting cylinder is provided with a tooth ring structure, and the tooth surface of the spring lock teeth A is matched with the tooth ring structure to form a self-locking structure.

[0007] Optionally, a hose is connected to the front end of the H-shaped frame, a threaded interface is connected to the front end of the hose, and the threaded interface is fixed at the chest of the test skin; and 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, the middle of the top of the spinal joint is a ball groove structure capable of accommodating the connecting ball head; the bottom of the front end of the spinal joint is integrally provided with a docking seat, a through hole is formed in the docking seat; the top of the front end of the spinal joint is hingedly provided with a spring telescopic rod, the top end of the spring telescopic rod is fixedly provided with a docking pile, the docking pile can be inserted into the through hole of the docking seat; the upper rear of the spinal joint is integrally provided with a support rod.

[0009] Optionally, the inner side of the bottom of the limb joint is slidably provided with a spring lock tooth B; the top shaft end of the main limb bone is fixedly provided with a limiting tooth ring, the outer part of the limiting tooth ring is a half tooth surface, and the spring lock tooth B can be matched with the limiting tooth ring; the two ends of the hip beam are also provided with limb joints.

[0010] Optionally, the top of the inter-limb joint is fixedly provided with an inner sliding cylinder, and the inner sliding cylinder is matched and directionally slid in the main limb bone.

[0011] Optionally, the bottom of the inter-limb joint is a tooth surface structure, the middle bottom of the hinged seat is slidably provided with a spring lock tooth C, and the tooth surface of the spring lock tooth C is matched with the tooth surface of the inter-limb joint to form a self-locking structure.

[0012] Optionally, the two ends of the spinal joint are fixedly provided with mimic ribs, the two ends of the mimic ribs are curved forward; the front side of the end of the mimic rib close to the spinal joint is fixedly provided with an impact tester; the two ends of the inside of the impact tester are fixedly provided with pressure sensors, the middle of the impact tester is slidably provided with a middle block, and the two sides of the inside of the impact tester are slidably provided with two groups of sliding pieces; the middle block and the sliding pieces are provided with springs therebetween.

[0013] The beneficial effects are as follows: The parameter adjustment is flexible, the simulation effect is comprehensive, the height is adjusted by a remote control electric cylinder, the test skin can be synchronously stretched, the weight can be greatly adjusted by loading and unloading counterweights, the posture can be rotated and fixed by the self-locking structure of the limb joint and other components, and the hands and feet can be assembled to simulate different human states.

[0014] The impact detection is accurate, and the equipment is protected; when the impact or inertia acts, the middle block moves to extrude the spring, and the pressure sensor can accurately detect the pressure rise; the spring also provides buffering to avoid damage to the dummy, which not only ensures reliable data but also prolongs the service life of the equipment. The test and power supply are convenient, and various scenes are adapted; various detection sensors can be fixed between the test skin and the mimic skeleton in advance, and can be installed as needed to adapt to specified tests; the dummy can be fixed by a safety belt and the like; at the same time, the battery in the control box is connected to a wireless charging pile for wireless charging, which can also power the sensor to ensure efficient testing. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 shows a perspective view of the embodiment of the application; Figure 2 Fig. 2 shows a schematic view of the internal structure of the embodiment of the application; Figure 3 Fig. 3 shows a schematic view of the side view of the embodiment of the application; Figure 2 Fig. 4 shows a schematic view of the rear side of the embodiment of the application; Figure 4 Figure 2 Fig. 5 shows a schematic view of the H-shaped frame of the embodiment of the application; Figure 5 Fig. 6 shows a schematic view of the assembly structure of the spinal joint of the embodiment of the application; Figure 6 Fig. 7 shows a schematic view of the assembly structure of the main limb bone of the embodiment of the application; Figure 7 Fig. 8 shows a schematic view of the assembly structure of the impact tester of the embodiment of the application. Figure 8 Fig. 9 shows a list of reference numerals.

[0016] Fig. 1 shows a perspective view of the embodiment of the application; 1, head cover bone; 101, wireless charging pile; 2, control box; 3, connecting rod; 4, clavicle beam; 401, spring lock tooth A; 5, H-shaped frame; 501, counterweight barrel; 502, hose; 503, threaded interface; 504, threaded sealing plug; 6, spinal joint; 601, connecting ball head; 602, docking seat; 603, spring telescopic rod; 604, docking pile; 605, support rod; 7, hip beam; 8, limb joint; 801, assembly cylinder; 802, spring lock tooth B; 9, main limb bone; 901, limit tooth ring; 10, electric cylinder; 11, inter-limb joint; 1101, inner sliding cylinder; 12, auxiliary limb bone; 1201, hinged seat; 1202, spring lock tooth C; 13, wrist joint; 14, mimic rib; 15, impact tester; 1501, pressure sensor; 1502, middle block; 1503, sliding sheet; 16, test skin. DETAILED DESCRIPTION

[0017] In order to make the purpose, scheme and advantages of the technical solutions of the application more clear, the technical solutions of the embodiments of the application will be described clearly and completely in the following with reference to the drawings of the specific embodiments of the application.

[0018] Embodiment 1: please refer to the drawings in the specification, Figures 1 to 8 as shown: ​The application provides a length-adjustable aviation lifesaving dummy for wading test, which comprises a head cover bone 1, a wireless charging pile 101 fixedly arranged at the top of the head cover bone 1, a control box 2 arranged at the bottom of the head cover bone 1, a wireless signal transceiver and a battery arranged in the control box 2, a connecting rod 3 fixedly arranged at the bottom rear side of the head cover bone 1, a clavicle beam 4 fixedly arranged at the bottom of the connecting rod 3, an H-shaped frame 5 fixedly arranged at the front end of the clavicle beam 4, a counterweight barrel 501 fixedly arranged at the bottom of the H-shaped frame 5, a series of spine joints 6 fixedly arranged at the bottom of the clavicle beam 4, a hip beam 7 hingedly arranged at the bottom of the lowermost spine joint 6, limb joints 8 rotatably arranged at the two sides of the clavicle beam 4, assembly barrels 801 integrally arranged at one end of the limb joints 8 close to the clavicle beam 4, the assembly barrels 801 being rotatably arranged in the two sides of the clavicle beam 4 through bearings, main limb bones 9, the main limb bones 9 being rotatably arranged in the limb joints 8 through bearings at the top middle part of the main limb bones 9, electric cylinders 10 fixedly arranged in the main limb bones 9, inter-limb joints 11 fixedly arranged at the telescopic ends of the electric cylinders 10, auxiliary limb bones 12, hinged seats 1201 fixedly arranged at the top of the auxiliary limb bones 12, the hinged seats 1201 being rotatably arranged outside the inter-limb joints 11, wrist joints 13 hingedly arranged at the bottom of the auxiliary limb bones 12 in the same connecting mode as the top of the auxiliary limb bones 12, and test skins 16 wrapped outside all the components.

[0019] Wherein the inner sides of the two ends of the clavicle beam 4 are slidably provided with spring lock teeth A401; the outside of the assembly barrel 801 is provided with a tooth ring structure, and the tooth surface of the spring lock tooth A401 is matched with the tooth ring structure to form a self-locking structure.

[0020] Wherein the front end of the H-shaped frame 5 is connected with a hose 502, the front end of the hose 502 is connected with a threaded interface 503, and the threaded interface 503 is fixed at the chest of the test skin 16; the front end of the threaded interface 503 is threadedly connected with a threaded sealing plug 504.

[0021] Wherein the bottom of the spine joint 6 is integrally provided with a connecting ball head 601, the top middle part of the spine joint 6 is a ball groove structure capable of accommodating the connecting ball head 601; the front end of the spine joint 6 is integrally provided with a butt joint seat 602 below, the butt joint seat 602 is provided with a through hole, the front end of the spine joint 6 is hingedly provided with a spring telescopic rod 603 above, the top end of the spring telescopic rod 603 is fixedly provided with a butt joint pile 604, the butt joint pile 604 can be inserted into the through hole of the butt joint seat 602, and the rear upper side of the spine joint 6 is integrally provided with a supporting rod 605.

[0022] The bottom inner side of the limb joint 8 is slidably provided with a spring lock tooth B802; the top shaft end of the main limb bone 9 is fixedly provided with a limiting tooth ring 901, the outer part of the limiting tooth ring 901 is a half-tooth surface, and the spring lock tooth B802 can be matched with the limiting tooth ring 901; the two ends of the hip beam 7 are also provided with the limb joint 8.

[0023] The top part of the inter-limb joint 11 is fixedly provided with an inner sliding cylinder 1101, and the inner sliding cylinder 1101 is slidably matched and oriented in the main limb bone 9.

[0024] The bottom part of the inter-limb joint 11 is a tooth surface structure, the middle bottom part of the hinged seat 1201 is slidably provided with a spring lock tooth C1202, and the tooth surface of the spring lock tooth C1202 is matched with the tooth surface of the inter-limb joint 11 to form a self-locking structure.

[0025] The two ends of the spinal joint 6 are fixedly provided with mimic ribs 14, the two ends of the mimic ribs 14 are bent forward; the front side of the end of the mimic rib 14 close to the spinal joint 6 is fixedly provided with an impact tester 15; the two ends of the inside of the impact tester 15 are fixedly provided with pressure sensors 1501, the middle part of the impact tester 15 is slidably provided with a middle block 1502, the two sides of the inside of the impact tester 15 are slidably provided with two groups of sliding sheets 1503, and the middle block 1502 and the sliding sheet 1503 are provided with springs therebetween.

[0026] I. Basic use and power supply detection In use, first, various detection sensors are fixed between the test skin 16 and the mimic skeleton, then the dummy is fixed by a safety belt or other means, and the simulation detection can be started, and the parameters and monitoring methods of various sensors are as follows: Upper neck six-component sensor: Main technical indicators 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: Test the physiological index parameters of the dummy in the impact process, the neck load is to convert the dynamic force and torque borne by the neck into an electrical signal, which is an important parameter for testing the neck protection ability and an important parameter for test.

[0028] Lower neck six-component sensor: Main technical indicators Range: FX: 13000 N, FY: 13000 N, FZ: 13000 N; MX: 450 Nm, MY: 450 Nm, MZ: 339 Nm; Excitation voltage: 2-10 V; Function: Test the physiological index parameters of the dummy during the impact process, the dynamic force and torque on the neck are converted into electrical signals, which are important parameters for testing the neck protection ability and important parameters for testing.

[0029] Chest acceleration sensor: Main technical indicators Range: 100 g; Excitation voltage: 5-15 V; Nonlinearity: 1%; Frequency response: 900 Hz; Function: Test the physiological index parameters of the dummy during the impact process, the dynamic force and torque on the neck are converted into electrical signals, which are important parameters for testing the neck protection ability and important parameters for testing.

[0030] Leg force sensor: Main technical indicators Range: 3% quantile dummy left and right 6672.3 N, Excitation voltage: 2-10 V; Impedance: left and right 350 Ω.

[0031] Function: Test the physiological index parameters of the dummy during the impact process, the dynamic force and torque on the neck are converted into electrical signals, which are important parameters for testing the neck protection ability and important parameters for testing.

[0032] The battery in the control box 2 is connected to the wireless charging pile 101, which can realize wireless charging and can power each group of sensors. The sensors in the test skin 16 can be installed as needed, combined with the environment to complete the specified test. Two, impact pressure detection and protection The middle block 1502 is kept centered by the springs on both sides. When the dummy is impacted or inertial, the middle block 1502 moves and squeezes the corresponding direction spring, and the pressure sensor 1501 can detect the pressure rise. At the same time, the spring can buffer the impact to avoid damage. Three, key parameter adjustment Height and arm length: The remote control electric cylinder 10 is stretched, and the test skin 16 is stretched with it, so that the total height and arm length can be adjusted. Weight adjustment: Remove the threaded plug 504, and add water, steel balls, etc. to the weight barrel 501 through the threaded interface 503; after testing, the dummy can be poured out with the weight with the front down. Four, posture and limb adjustment When adjusting the posture, the limb joint 8 can be directly rotated, which is fixed outside the clavicle beam 4 or the hip beam 7 by the spring lock tooth A401; the circumferential rotation of the main limb bone 9 can adjust the arm position, and the limiting tooth ring 901 is matched with the spring lock tooth B802 to rotate and realize limiting and self-locking. The sub-limb bone 12 can be rotated outside the inter-limb joint 11, and is self-locked by the spring lock tooth C1202 contacting the bottom tooth surface of the inter-limb joint 11; the wrist joint 13 is fixed in the same way, and the outside is connected with a screw rod to simulate hands and feet, which can be assembled for testing. This kind of self-locking design can ensure the stability of the adjusted posture.

[0033] Example 2: On the basis of example 1, in addition to the four limbs being made of silica gel material 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 and wrapped on the rigid torso; Accurate manufacturing of head and face: Head basic size data Measurement item Name P50 standard value P50 design value P50 difference value Whether the requirement is met 1.1 Maximum length of head 187.0±5 188.0 +1.0 Yes 1.2 Maximum width of head 159.0±5 160.0 +1.0 Yes 1.3 Total height of head 234.0±5 234.0 0.0 Yes 1.5 Height of eye top 114.0±5 113.0 -1.0 Yes 1.9 Morphological face length 122.0±5 122.0 0 Yes 1.11 Minimum width of forehead 128.0±5 127.0 -1.0 Yes 1.12 Face 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 Nose length 51.0±5 50.0 -1.0 Yes 1.19 Nose width 38.0±5 38.5 +0.5 Yes 1.20 Nose middle width 30.0±5 30.0 0 Yes 1.21 Nose depth 20.0±5 20.0 0 Yes 1.22 Nose middle depth 14.0±5 14.2 +0.2 Yes 1.26 Nose middle to submentum distance 108.0±5 110.0 +2.0 Yes 1.29 Mouth width 51.0±5 51.0 0 Yes 1.32 Facial ear length 63.0±5 62.5 -0.5 Yes 1.33 Facial ear width 31.0±5 31.2 +0.2 Yes 1.34 External width of two ears 187.0±5 188.0 +1.0 Yes 1.35 Width between tragus of two ears 146.0±5 146.0 0 Yes 1.36 Width between two mandibular angles 119.0±5 119.0 0 Yes 1.37 Distance between nasal tip and occipital protuberance 218.0±5 217.5 -0.5 Yes 1.38 Distance between tragus of ear and occipital protuberance 105.0±5 105.0 0 Yes 1.39 Distance between eye protuberance and occipital protuberance 189.0±5 189.0 0 Yes 1.40 Circumference of head 572.0±5 570.0 -2.0 Yes 1.41 Circumference of head crown 663.0±5 665.0 +2.0 Yes Example 3: On the basis of example 1, the surface of the skeletal structure is processed as follows: (1) Micro-arc oxidation Through the combination of electrolyte and corresponding electrical parameters, a ceramic film layer mainly composed of base metal oxides is grown on the surface of aluminum alloy under the action of transient high temperature and high pressure generated by arc light.

[0034] (2) Metal drawing Grinding products form lines on the surface of workpieces, which is a kind of surface treatment method to achieve decorative effect.

[0035] (3) Sand blasting Using the impact of high-speed sand flow to clean and roughen the surface of the substrate, that is, using compressed air as power to form a high-speed jet beam to spray the material (copper ore sand, quartz sand, emery, iron sand, sea sand) at high speed to the surface of the skeletal structure, so that the outer surface of the skeleton changes.

[0036] (4) Calendering A finishing process that uses the plasticity of fibers under mixed heat conditions to flatten or roll out parallel fine diagonal lines on the surface of the fabric to improve the gloss of the fabric; after the material is sent in, it is heated and melted, then shaped into a sheet or film, and then cooled and rolled up.

[0037] Inspection of skeletal structure parts The inspection method of the skeletal structure parts is as follows: (1) Unqualified products are returned to the factory for repair or reprocessing; (2) The qualified products are put into storage for management, classified storage, and single entry into storage, one for the procurement person in charge, one for the warehouse personnel, and one for the archives.

[0038] (3) The assembled structure is wrapped with PE wrapping film to prevent water, dust and collision.

[0039] The specific use and role of the embodiment are as follows: in the application, before use, various sensors to be detected are fixed at positions between the inside of the test skin 16 and the mimic skeleton, simulation detection is performed, and the dummy is fixed by a safety belt or other mounting mode to perform the test. The middle block 1502 is kept in the middle by the force of the springs on its two sides, and after the dummy is subjected to impact force or inertia, the position of the middle block 1502 moves, thereby extruding the spring in the moving direction, increasing the force, and feeding back to the pressure sensor 1501, so as to detect the increase of the pressure by the pressure sensor 1501; the spring also provides a buffering effect to avoid damage caused by impact; When the height needs to be adjusted to simulate different people, the electric cylinder 10 is directly stretched by remote control, and the test skin 16 is elastic and can be stretched, so that the total height and arm length of the human body can be adjusted after stretching; When the weight of the dummy needs to be adjusted, the threaded sealing plug 504 is removed, and the counterweight is directly inserted into the inside of the counterweight barrel 501 through the threaded interface 503, such as water, steel balls and iron powder, so that the weight can be greatly adjusted; after the test is completed, the dummy is placed face down, and the counterweight can be poured out; When the posture of the dummy needs to be adjusted, the limb joint 8 can be directly rotated, the limb joint 8 is fixed outside the clavicular beam 4 or the pelvic beam 7 by the spring lock tooth A401, the position is kept, the main limb bone 9 is rotated in the circumferential direction, the arm position can be adjusted, the limiting tooth ring 901 is rotated to match the spring lock tooth B802, and the limiting and self-locking effects are provided; the secondary limb bone 12 can be directly rotated outside the inter-limb joint 11, and is self-locked and fixed by the spring lock tooth C1202 contacting the bottom tooth surface of the inter-limb joint 11; the wrist joint 13 is fixed in the same way, a simulated hand or foot is connected outside the wrist joint 13 by a screw rod to complete the assembly and subsequent test; The battery in the control box 2 is connected to the wireless charging pile 101, and can be wirelessly charged; the battery in the control box 2 is provided with a line to supply power to each group of sensors; the sensors in the test skin 16 are installed as needed to perform specified tests in combination with the environment.

Claims

1. An adjustable length aviation survival mannequin for wading tests, characterized in that, The application relates to a head cover (1), a wireless charging pile (101) is fixedly arranged at the top of the head cover (1), a control box (2) is arranged at the bottom of the head cover (1), a connecting rod (3) is fixedly arranged at the rear bottom of the head cover (1), a clavicle beam (4) is fixedly arranged at the bottom of the connecting rod (3), an H-shaped frame (5) is fixedly arranged at the front end of the clavicle beam (4), a counterweight barrel (501) is fixedly arranged at the bottom of the H-shaped frame (5), a row of spine joints (6) are fixedly arranged at the bottom of the clavicle beam (4) in a head-to-tail mode, a hip beam (7) is hingedly arranged at the bottom of the lowermost spine joint (6), limb joints (8) are rotatably arranged at the two sides of the clavicle beam (4), a mounting cylinder (801) is integrally arranged at one end of the limb joint (8) close to the clavicle beam (4), the mounting cylinder (801) is rotatably arranged in the two sides of the clavicle beam (4) in cooperation with a bearing, a main limb bone (9) is rotatably arranged in the limb joint (8) in cooperation with a rotating shaft bearing and is arranged at the top middle of the main limb bone (9), an electric cylinder (10) is fixedly arranged in the main limb bone (9), an inter-limb joint (11) is fixedly arranged at the telescopic end of the electric cylinder (10), a secondary limb bone (12) is fixedly arranged at the top of the secondary limb bone (12) and is rotatably arranged outside the inter-limb joint (11) in cooperation with a hinging seat (1201), a wrist joint (13) is hingedly arranged at the bottom of the secondary limb bone (12) in the same connecting mode as the top of the secondary limb bone (12), and test skin (16) is wrapped outside each component. Spring lock teeth A (401) are slidably arranged at the inner sides of the two ends of the clavicle beam (4), the outside of the mounting cylinder (801) is provided with a tooth ring structure, and the tooth surface of the spring lock teeth A (401) is matched with the tooth ring structure to form a self-locking structure.

2. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, A hose (502) is connected at the front end of the H-shaped frame (5), a threaded interface (503) is connected at the front end of the hose (502), the threaded interface (503) is fixed at the chest of the test skin (16), and a threaded sealing plug (504) is threadedly connected at the front end of the threaded interface (503).

3. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, A connecting ball head (601) is integrally arranged at the bottom of the spine joint (6), the top middle of the spine joint (6) is provided with a ball groove structure capable of accommodating the connecting ball head (601), a butt joint seat (602) is integrally arranged below the front end of the spine joint (6), a through hole is formed in the butt joint seat (602), a spring telescopic rod (603) is hingedly arranged above the front end of the spine joint (6), a butt joint pile (604) is fixedly arranged at the top end of the spring telescopic rod (603), the butt joint pile (604) can be inserted into the through hole of the butt joint seat (602), and a supporting rod (605) is integrally arranged above the rear of the spine joint (6).

4. The adjustable length aviation survival dummy for wading tests of claim 1, wherein, ​ 5. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, The bottom inner side of the limb joint (8) is slidably provided with a spring lock tooth B (802); the top shaft end of the main limb bone (9) is fixedly provided with a limiting tooth ring (901), the outer part of the limiting tooth ring (901) is a half-week tooth surface, and the spring lock tooth B (802) can be matched with the limiting tooth ring (901); the two ends of the hip beam (7) are also provided with the limb joint (8).

6. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, The top of the inter-limb joint (11) is fixedly provided with an inner sliding cylinder (1101), and the inner sliding cylinder (1101) is slidably matched in the main limb bone (9).

7. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, The bottom of the inter-limb joint (11) is a tooth surface structure, the middle bottom of the hinged seat (1201) is slidably provided with a spring lock tooth C (1202), and the tooth surface of the spring lock tooth C (1202) is matched with the tooth surface of the inter-limb joint (11) to form a self-locking structure.

8. An adjustable length aviation survival manikin for wade testing according to claim 1, wherein, The two ends of the spinal joint (6) are fixedly provided with mimic rib bones (14), the two ends of the mimic rib bones (14) are bent forward; the front side of the end of the mimic rib bone (14) close to the spinal joint (6) is fixedly provided with an impact tester (15); the two ends of the inside of the impact tester (15) are fixedly provided with pressure sensors (1501), the middle of the impact tester (15) is slidably provided with a middle block (1502), the two sides of the inside of the impact tester (15) are slidably provided with two groups of sliding sheets (1503), and the middle block (1502) and the sliding sheet (1503) are provided with springs.

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