A standing mannequin restraint device

Abstract

A standing posture dummy binding device for simulating the movement of a standing posture dummy in an impact environment, comprising a mounting seat, a sliding part and a connecting part for mounting the standing posture dummy; the sliding part comprises a track and a sliding block that slide relative to each other; the track is fixed to the mounting seat; the connecting part is fixedly connected to the sliding block; the standing posture dummy moves along the placement direction of the track. The mounting seat, the sliding part and the connecting part are arranged, the standing posture dummy is mounted on the sliding block of the sliding part through the connecting part, the sliding connection of the track and the sliding block of the sliding part is adopted to ensure the integrity of the impact and falling movement process of the standing posture dummy, the tester can conveniently observe the movement trend of each part of the body of the dummy, and the authenticity of the movement of the dummy in the test environment is enhanced.

Description

Technical Field

[0001] This invention relates to the technical field of dummy impact or fall testing, and specifically to a standing dummy restraint device. Background Technology

[0002] Standing dummy impact and drop tests are crucial for analyzing human safety under longitudinal impact conditions. They aim to realistically simulate the human body's motion response and damage effects during impact or fall, and have significant engineering applications in public transportation, elevator testing, aircraft parachuting, and ship mine protection. Typically, a complete dummy collision system includes a test dummy, a data acquisition and analysis system, a high-speed camera, and restraint devices. The restraint devices are essential for protecting the dummy from accidental or non-test-related damage, fixing its posture and center of gravity, influencing the realism of the simulated mechanical environment, and determining the validity of the test results. However, in certain specialized applications, it is necessary to simulate the motion of the lower limbs after being subjected to longitudinal impact loads (such as squatting, knee flexion, and ankle rotation). Traditional sitting or lying restraint devices are insufficient to meet these technical requirements.

[0003] The most widely used anthropomorphic testing device (ATD) in the world is the Hybrid III series crash dummies, which consist of skeletons made of metals such as aluminum, copper, and steel, and covered with vinyl resin, rubber, and foam materials. This series includes 5th percentile females weighing 49 kg, 50th percentile males weighing 77 kg, and 95th percentile males weighing 101 kg. The standing dummy modifies the original Hybrid III dummy, which could only maintain a sitting posture, allowing it to stand and sit, with a physical mass and dimensional distribution comparable to the Hybrid III series crash dummies. In vehicle collisions or other frontal impact tests, the dummies participating in the tests are mostly in a sitting position, and using seat belts and restraint ropes achieves good restraint and protection. However, in fields such as public transportation, elevator testing, aircraft parachuting, and ship mine protection, standing dummies are needed to study and determine human safety. Considering the huge longitudinal motion inertia generated by impacts and falls under these conditions, the design of the dummy restraint device directly determines the safety of the test and the accuracy of the results. Currently, common restraint methods are to use rigid mechanical connections or to use multiple ropes and multi-angle restraints. These two restraint designs often put the dummy in an over-restrained or under-restrained state, making it impossible to observe the real movement of various parts of the dummy. Moreover, under high-level impact overloads, there are certain safety hazards. Summary of the Invention

[0004] To address the problem that current common restraint methods result in over- or under-restrained states for the dummy, making it impossible to observe the actual movement of different parts of the dummy, this invention proposes a standing dummy restraint device for simulating and acquiring the movement of a standing dummy under impact conditions, comprising: a mounting base, a sliding part, and a connecting part for mounting the standing dummy.

[0005] The sliding part includes a track and a slider that slide against each other;

[0006] The track is fixed to the mounting base;

[0007] The connecting part is fixedly connected to the slider;

[0008] The standing dummy moves along the placement direction of the track.

[0009] Preferably, the slider includes a guide block, a pulley structure, and a fixing plate;

[0010] The guide block and the fixing plate are placed in parallel.

[0011] The guide block has a guide plate extending from its side facing the fixed plate;

[0012] The guide plate is fixedly connected to the fixing plate;

[0013] The pulley structure is mounted on the side of the guide block facing the fixed plate;

[0014] The track is disposed between the pulley structure and the fixed plate;

[0015] The connecting part is mounted on the fixing plate.

[0016] Preferably, the track is a cylindrical structure open at both ends;

[0017] A through groove of the same length as the track is formed on the side wall away from the mounting base;

[0018] The guide block and the pulley structure are installed inside the cylindrical structure of the track, and the guide block and the pulley structure are respectively in contact with the inner wall of the cylindrical structure of the track;

[0019] The guide plate is disposed within the through groove;

[0020] The fixing plate is disposed outside the through groove.

[0021] Preferably, it also includes a limiter;

[0022] Limiting holes are provided on the side wall of the track;

[0023] The limiter passes through the limiting hole;

[0024] The limiter abuts against the slider.

[0025] Preferably, the connecting portion includes one or more hooks;

[0026] The hook is disposed on the side of the fixing plate opposite to the track;

[0027] Alternatively, the plurality of hooks may be arranged along the extension direction of the fixing plate on the side of the fixing plate opposite to the track.

[0028] Preferably, the hook includes a hook body and a torsion bar;

[0029] One end of the hook is fixedly connected to the fixing plate;

[0030] The end of the hook facing the fixed plate is elastically connected to the end of the torsion bar facing the fixed plate;

[0031] The end of the hook that is away from the fixed plate contacts the end of the torsion bar that is away from the fixed plate.

[0032] Preferably, the torsion bar is a non-closed ring structure;

[0033] The end of the hook facing the fixing plate has two asymmetrical blind holes;

[0034] The two ends of the torsion bar are respectively installed in the two blind holes.

[0035] Preferably, the mounting base includes a plate-shaped base and a rod-shaped support column;

[0036] The base is placed horizontally;

[0037] The support column is placed vertically;

[0038] The lower end of the support column is fixed to the upper side of the base;

[0039] The track is fixed to the side of the support column.

[0040] Preferably, the mounting base further includes reinforcing ribs;

[0041] The reinforcing rib is disposed at the connection between the base and the support column, and is fixedly connected to both the base and the support column.

[0042] Preferably, the base comprises a magnetically conductive material.

[0043] Preferably, the support column comprises a hollow square steel structure.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0045] This invention provides a standing dummy restraint device for simulating the movement of a standing dummy under impact conditions. It includes a mounting base, a sliding part, and a connecting part for mounting the standing dummy. The sliding part includes a track and a slider that slide against each other. The track is fixed to the mounting base. The connecting part is fixedly connected to the slider. The standing dummy moves along the placement direction of the track. This invention, by setting up a mounting base, a sliding part, and a connecting part, uses the connecting part to mount the standing dummy onto the slider of the sliding part. The sliding connection between the track and the slider ensures the integrity of the impact and fall motion process of the standing dummy, facilitating the observer's observation of the movement trends of different parts of the dummy's body and enhancing the realism of the dummy's movement under testing conditions. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the overall structure of the semi-rigid restraint device for standing dummy of the present invention.

[0047] Figure 2 This is a schematic diagram of the slider structure of the present invention;

[0048] Figure 3 This is a schematic diagram of the hook structure of the present invention.

[0049] The components include: 1. base; 2. track; 3. slider; 4. hook; 5. limiting hole; 6. support column; 7. guide block; 8. pulley structure; 9. fixing plate; 10. hook body; 11. torsion bar. Detailed Implementation

[0050] This invention discloses a standing dummy restraint device. The device consists of a mounting base, a sliding part, and a connecting part. The connecting part is used to mount the standing dummy on the slider of the sliding part. The track of the sliding part and the slider are slidably connected to ensure the integrity of the impact and fall motion process of the standing dummy. This makes it easier for the tester to observe the movement trend of various parts of the dummy's body and enhances the realism of the dummy's movement in the test environment.

[0051] Example:

[0052] A standing dummy restraint device is used to simulate and acquire the movement of a standing dummy under impact conditions, such as... Figure 1 As shown, it includes: a mounting base, a sliding part, and a connecting part for mounting a standing dummy; the sliding part includes a track 2 and a slider 3 that slide against each other; the track 2 is fixed to the mounting base; the connecting part is fixedly connected to the slider 3; the standing dummy moves along the placement direction of the track 2.

[0053] The mounting base includes a base 1 in a plate-like structure and a support column 6 in a rod-like structure; the base 1 is placed horizontally; the support column 6 is placed vertically; the lower end of the support column 6 is fixed to the upper side surface of the base 1; the track 2 is fixed to the side surface of the support column 6. The base 1 includes a magnetically conductive material, and a plurality of through holes are uniformly formed in the base 1, and it can be fixedly connected to a metal test platform or the ground by electromagnetic adsorption or bolt connection. The support column 6 includes a square steel with a hollow structure. The support column 6 is fixed above the base 1 by welding, and it is a square steel with a hollow structure and is the main load-bearing member. The design of the electromagnetic magnetic adsorption base 1 improves the convenience of installing the restraint device, making the installation and use of the device simpler and more convenient, and has unique advantages in fields such as elevator bottom squatting and ship shock resistance simulation.

[0054] The mounting base further includes reinforcing ribs, and the number of reinforcing ribs is set according to the actual impact strength. The reinforcing ribs are arranged at the connection between the base 1 and the support column 6 and are fixedly connected to both the base 1 and the support column 6 at the same time.

[0055] The slider 3, as Figure 2 shown, includes a guide block 7, a pulley structure 8 and a fixing plate 9; the guide block 7 and the fixing plate 9 are placed in parallel; a guide plate extends from the side surface of the guide block 7 facing the fixing plate 9; the guide plate is fixedly connected to the fixing plate 9; the pulley structure 8 is installed on the side surface of the guide block 7 facing the fixing plate 9; the track 2 is arranged between the pulley structure 8 and the fixing plate 9; the connecting part is installed on the fixing plate 9. In this embodiment, the guide block 7, the guide plate and the fixing plate 9 are integrally formed.

[0056] The track 2, as Figure 1 shown, is a cylindrical structure with both ends open; a through groove equal in length to the track 2 is formed on the side wall of the track 2 facing away from the mounting base; the guide block 7 and the pulley structure 8 are installed in the cylindrical structure of the track 2, and the guide block 7 and the pulley structure 8 are respectively in contact with the inner wall of the cylindrical structure of the track 2; the guide plate is arranged in the through groove; the fixing plate 9 is arranged outside the through groove. In this embodiment, the track 2 is selected as a square cylindrical structure, the track 2 is fixed to one side of the support column 6 by welding, the cross-sectional shape of the track 2 is a "mouth" shape, and a through groove is opened on the side facing the dummy. In this embodiment, the pulley structure 8 is arranged in multiple groups, fixed to the guide block 7 by screws, and are respectively arranged on both sides of the guide plate. The pulleys of the pulley structure 8 are in contact with the inner surface of the long groove side of the track 2, and the side surface of the guide block 7 facing away from the pulley structure 8 is in contact with the inner surface of the track 2; the guide block 7 extends out of the fixing plate 9 towards the grooved side of the track 2 for fixing the connecting part; the slider 3 is placed inside the track 2 to generate relative sliding. In this embodiment, the height of the support column 6 and the track 2 can be reasonably set according to the impact test strength, and the materials of the support column 6 and the track 2 can be high-strength alloy steel.

[0057] The semi-rigid restraint device for the standing dummy also includes limiters; the side wall of the track 2 facing the support column 6 is fixedly connected to the support column 6, and a through groove is opened on the side wall of the track 2 facing away from the support column 6. Symmetrical limit holes 5 can be opened on the other two side walls of the track 2 according to the test requirements; the limiters are inserted into the limit holes 5; the limiters abut against the slider 3. Limiters can be inserted into the limit holes 5 to limit the movement distance of the dummy. In this embodiment, metal limiters are used.

[0058] The connecting part includes one or more hooks 4; when there is one hook 4, the hook is set on the side of the fixing plate 9 away from the track 2; when there are multiple hooks 4, the multiple hooks 4 are arranged along the extension direction of the fixing plate 9 on the side of the fixing plate 9 away from the track 2.

[0059] Hook 4, such as Figure 3 As shown, the device includes a hook body 10 and a torsion bar 11. One end of the hook body 10 is fixedly connected to the fixing plate 9. The end of the hook body 10 facing the fixing plate 9 is elastically connected to the end of the torsion bar 11 facing the fixing plate 9. The end of the hook body 10 away from the fixing plate 9 contacts the end of the torsion bar 11 away from the fixing plate 9. The torsion bar 11 has a non-closed ring structure. Two asymmetrical blind holes are opened at the end of the hook body 10 facing the fixing plate 9. The two ends of the torsion bar 11 are respectively installed in the two blind holes. The end of the hook body 10 facing the fixing plate 9 is welded and fixed to the fixing plate 9. When the two ends of the torsion bar 11 are inserted into the blind holes, torque is generated. When the hook 4 is successfully connected to the connector configured on the dummy, the torsion bar 11 will automatically close to prevent the hook 4 from falling off the dummy. The design of multiple hooks 4 improves the safety and stability of the dummy connection, while simplifying the dummy restraint device and retaining its mobility. Limiting holes 5 can be opened on both sides of the track 2 to meet the needs of different test environments, thus improving the safety and stability of the test.

[0060] The specific structure of the standing dummy restraint device, such as... Figure 1 , Figure 2 and Figure 3 As shown: The system includes a base 1, a support column 6, a track 2, a slider 3, and a hook 4. The base 1 is made of magnetically conductive material and generates a magnetic field and attraction force through electromagnetic action, thus connecting and fixing it to the metal testing platform. Multiple through holes are evenly distributed on the base 1, allowing it to be bolted to the testing platform or the ground. The support column 6, fixed to the base 1, is a hollow square steel structure, and its size can be adjusted according to experimental requirements. The track 2 has a U-shaped cross-section and is fixed to the support column 6. A through slot of the same length as the track 2 is opened on the side facing away from the support column 6. Symmetrical limiting holes 5 can be opened on both sides of the track 2 according to experimental requirements, allowing the slider 3 to be restricted from movement by inserting limiters.

[0061] The slider 3 includes two pulley structures 8, a guide block 7, and a fixed plate 9. The guide block 7 has a guide plate extending from the side facing the fixed plate 9. The pulley structure 8 is fixed to one side of the guide block 7, and the pulley of the pulley structure 8 contacts the inner wall of the through groove of the guide rail. The side wall of the guide block 7 facing away from the fixed plate 9 contacts the inner side wall of the guide rail away from the through groove, so that the slider 3 and the track 2 slide relative to each other. The side of the guide plate extending outward from the track 2 is fixedly connected to the fixed plate 9 for fixing the hook 4.

[0062] The hook 4 is fixed to one side of the fixed plate 9. In this embodiment, three hooks are provided, which are fixed to the two ends and the middle of the fixed plate 9 respectively. The open side of the hook 4 is closed by a metal torsion bar 11. When the hook 4 is connected to the dummy, the torsion bar 11 will automatically close to prevent the connection from falling off. Both the slider 3 and the hook 4 are made of lightweight and high-strength metal materials to prevent large inertia from being generated during the sliding process.

[0063] The specific implementation method is as follows: Before the test begins, the device is fixed to the impact tower test platform by magnetic attraction or bolts through the base 1. At this time, the height of the slider 3 is adjusted so that the hook 4 is connected to the connecting part configured on the dummy. Check whether the torsion bar 11 in the hook 4 closes the hook body 10. Add grease or lubricating oil between the slider 3 and the track 2 to lubricate it fully.

[0064] After preparation, when testing in the drop tower or elevator car, the test platform, along with the standing dummy and restraint device, is raised to the predetermined height according to the test impact intensity and test requirements. The lifting method can be manual lifting or electric winch lifting. Then, the impact tower test platform is released to allow the dummy to fall freely, and the dummy maintains the stability of its posture and the consistency of its movement direction under the rolling friction of the slider 3 and the track 2. When using the impact machine test, the shock wave is transmitted longitudinally to the dummy through the test platform, and the restraint device slider 3 drives the dummy to move along the load direction and maintain lateral stability.

[0065] After the impact tower platform hits the bottom, the dummy continues to bend its knees and squat due to inertia. The motion response stops when the knee and ankle joints reach their dead points, or when slider 3 reaches its set limit. Data acquisition equipment is then used to analyze the dummy's impact test data and motion response characteristics. This method allows for the acquisition of the complete motion trend and movements of a standing dummy under impact conditions, improving the stability of the dummy's movement and the safety of the equipment under impact overload.

[0066] The use of a sliding mechanism ensures the integrity of the impact and fall motion of the standing dummy, making it easier for the tester to observe the movement trends of different parts of the dummy's body and enhancing the realism of the dummy's movement in the test environment; the connection between slider 3 and hook 4 gives the dummy's upper torso lateral stability, and the design of the limiting hole 5 / limiter prevents the dummy from being damaged by excessive load, thus improving the safety of the standing dummy.

[0067] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of the claims of the present invention pending approval.

Claims

1. A standing mannequin restraint device for simulating obtaining motion of a standing mannequin in an impact environment, comprising: The mounting seat, the sliding part and the connecting part for installing the standing dummy are included. The sliding part includes a track (2) and a sliding block (3) that slide relative to each other, the sliding block (3) includes a guide block (7), a pulley structure (8) and a fixed plate (9); The track (2) is fixed to the mounting seat; The connecting part is fixedly connected with the sliding block (3); The standing dummy moves along the placement direction of the track (2); The connecting part includes one or more hooks (4); The hooks (4) are arranged on the side of the fixed plate (9) away from the track (2); Or, the hooks (4) are arranged on the side of the fixed plate (9) away from the track (2) along the extension direction of the fixed plate (9); The hook body (10) is fixedly connected with the fixed plate (9) at one end; The end of the hook body (10) towards the fixed plate (9) is elastically connected with the end of the torsion bar (11) towards the fixed plate (9); The end of the hook body (10) away from the fixed plate (9) is in contact with the end of the torsion bar (11) away from the fixed plate (9). The guide block (7) and the fixed plate (9) are placed in parallel; The side of the guide block (7) towards the fixed plate (9) protrudes a guide plate; 2. A restraint system for a standing manikin according to claim 1, wherein The guide plate is fixedly connected with the fixed plate (9); The pulley structure (8) is installed on the side of the guide block (7) towards the fixed plate (9); The track (2) is arranged between the pulley structure (8) and the fixed plate (9); The connecting part is installed on the fixed plate (9). The track (2) is a cylindrical structure with both ends open; A through slot equal in length to the track (2) is formed in the side wall of the track (2) away from the mounting seat; 3. A restraint system for a standing manikin according to claim 2, wherein The guide block (7) and the pulley structure (8) are installed in the cylindrical structure of the track (2), and the guide block (7) and the pulley structure (8) are respectively in contact with the inner wall of the cylindrical structure of the track (2); The guide plate is arranged in the through slot; The fixed plate (9) is arranged outside the through slot. A limit stop is further included; A limit hole (5) is formed in the side wall of the track (2); 4. A restraint system for a standing manikin according to claim 3, wherein The limit stop is arranged in the limit hole (5); The limit stop is in abutment with the sliding block (3). The torsion bar (11) is a non-closed ring structure; Two asymmetric blind holes are formed in the end of the hook body (10) towards the fixed plate (9); 5. A restraint system for a standing manikin according to claim 1, wherein The two ends of the torsion bar (11) are respectively installed in the two blind holes. The mounting seat includes a base (1) in a plate structure and a support column (6) in a rod structure; The base (1) is placed horizontally; 6. A restraint system for a standing manikin according to claim 1, wherein The support column (6) is placed vertically; The lower end of the support column (6) is fixed to the upper side of the base (1); The track (2) is fixed to the side of the support column (6). The mounting seat further includes a reinforcing rib; ​ 7. A restraint system for a standing manikin according to claim 6, wherein ​ The reinforcing rib is arranged at the connection between the base (1) and the support column (6), and is fixedly connected with the base (1) and the support column (6).

8. A restraint system for a standing manikin according to claim 6, wherein The base (1) comprises a magnetic conductive material.

9. A restraint system for a standing manikin according to claim 6, wherein The support column (6) comprises a square steel with a hollow structure.

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