Vibration dummy for simulating human vibration test

Abstract

This invention provides a vibration counterweight dummy for simulating vibration tests on real people, relating to the field of vibration environment testing technology. It includes: a thoracic vertebral plate, comprising a thoracic component consisting of the thoracic vertebral plate, a thoracic vertebral top connecting plate, shoulder joint plates, rib plates, and a thoracic vertebral bottom connecting plate; a lumbar component consisting of a lumbar rubber column, a lumbar force sensor, a lumbar vertebral bottom connecting plate, and a lumbar vertebral top connecting plate; a hip component consisting of a pelvic block, a pelvic connecting plate, and leg connecting rods; and counterweights fixedly installed on the top of the thoracic vertebral top connecting plate, the outer sides of the two shoulder joint plates, and the bottoms of the two leg connecting rods. Through the synergistic effect of structural biomimicry, precise counterweighting, real-time monitoring, and safety warning, it can realistically simulate the mass distribution, mechanical response, and posture changes of a real person in a vibration environment. This solves the problem that traditional dummy models in vibration environment testing, due to their rudimentary counterweight adjustment, poor center of mass matching, and lack of state monitoring, cannot meet complex testing requirements.

Description

Technical Field

[0001] This invention relates to the field of vibration environment testing technology, and in particular to a vibration counterweight dummy used to simulate vibration tests on real people. Background Technology

[0002] In vibration environment testing in fields such as aerospace, automotive engineering, and military equipment, it is necessary to verify the safety and comfort of equipment by simulating the mechanical response, structural stress, and posture changes of real people under vibration loads. Traditional vibration tests often use simple counterweights or simplified dummy models, but these suffer from insufficient simulation accuracy and distorted dynamic response, making it difficult to meet the testing requirements of complex vibration scenarios. Traditional dummy models generally have the following technical shortcomings: rudimentary counterweight adjustment mechanisms, low weight adjustment accuracy and limited range, making it difficult to match the mass distribution characteristics of people of different body types; large deviations in the center of mass position, affecting the realism of vibration response; and a lack of effective condition monitoring methods, making it difficult to detect problems such as loose counterweights and structural connection failures in a timely manner, affecting the reliability of test data. Summary of the Invention

[0003] This invention relates to a vibration counterweight dummy for simulating real-person vibration tests, which solves the problems of traditional dummy models in vibration environment tests, such as rudimentary counterweight adjustment, poor center of mass matching, and lack of state monitoring, resulting in simulation distortion and compromised data reliability, making it difficult to meet complex testing requirements.

[0004] This invention provides a vibration counterweight dummy for simulating vibration tests on real people, specifically comprising: a thoracic vertebral plate, to which a rib plate is sleeved and welded to the rear end face of the thoracic vertebral plate; a thoracic vertebral top connecting plate welded to the top of the thoracic vertebral plate, and shoulder joint plates welded to the left and right sides of the bottom of the thoracic vertebral top connecting plate; a thoracic vertebral bottom connecting plate welded to the bottom of the thoracic vertebral plate; a lumbar vertebral rubber column located below the thoracic vertebral plate, with a lumbar vertebral top connecting plate fixedly installed at the top of the lumbar vertebral rubber column, and the lumbar vertebral top connecting plate fixedly connected to the thoracic vertebral bottom connecting plate; a lumbar force sensor fixedly installed at the bottom of the lumbar force sensor, and a lumbar vertebral bottom connecting plate fixedly installed at the bottom of the lumbar force sensor; and a pelvis located below the lumbar rubber column. The pelvic block has a pelvic connecting plate fixedly installed on its top, which is fixedly connected to the lumbar spine bottom connecting plate. Leg connecting rods are fixedly installed on both sides of the pelvic block. The thoracic vertebral plate, the thoracic spine top connecting plate, the shoulder joint plate, the rib plate, and the thoracic spine bottom connecting plate together form a chest component, which is covered with bionic skin. The lumbar spine rubber column, the lumbar spine force sensor, the lumbar spine bottom connecting plate, and the lumbar spine top connecting plate together form a lumbar spine component, which is covered with bionic skin. The pelvic block, the pelvic connecting plate, and the leg connecting rods together form a hip component, which is covered with bionic skin. A set of counterweights is fixedly installed on the top of the thoracic spine top connecting plate, on the outer sides of the two shoulder joint plates, and at the bottom of the two leg connecting rods.

[0005] Furthermore, the counterweight body is cylindrical in shape, and a circular groove is formed at the axial center of the right end face of the counterweight body. A counterweight connecting stud is fixedly installed at the axial center of the left side face of the inner end of the counterweight groove, and the length of the counterweight connecting stud is consistent with the depth of the counterweight groove. A counterweight lead block is inserted into the counterweight groove. The counterweight lead block is circular in shape, and a connecting hole is formed at the axial center of the counterweight lead block. The connecting hole is inserted and fitted with the counterweight connecting stud. A locking nut is threaded onto the counterweight connecting stud.

[0006] Furthermore, an annular connecting plate is fixedly installed on the right edge of the outer periphery of the counterweight body. The left end face of the annular connecting plate has six first locking holes that penetrate the right end face in an annular array. A circular closed plate with a circular plate structure is provided on the right side of the counterweight body. The left end face of the circular closed plate has six second locking holes that penetrate the right end face in an annular array. The first locking holes and the second locking holes are fixedly connected by bolts and nuts.

[0007] Furthermore, a rotating connecting seat is fixedly installed on the circular closed plate of the counterweight body fixed to the outer side of the two shoulder joint plates; it also includes an arm skeleton rod, with a movable joint component rotatably installed at both ends of the arm skeleton rod, one of which is rotatably connected to the rotating connecting seat via a rotating connecting shaft; the arm skeleton rod, movable joint component, rotating connecting seat and rotating connecting shaft together form an arm assembly, which is covered with bionic skin.

[0008] Furthermore, the counterweight body has a loosening sensing cavity with a circular cavity structure inside; the right side of the loosening sensing cavity has an insertion hole that communicates with the counterweight groove; a reciprocating slider is slidably inserted inside the loosening sensing cavity, and the left end of the reciprocating slider is fixedly connected to the left side of the loosening sensing cavity through a spring-loaded reset connector; an insertion post is fixedly installed at the center of the right end of the reciprocating slider, and the insertion post slides into the insertion hole; in its natural state, the right end of the reset connector passes through the insertion hole and is located inside the counterweight groove.

[0009] Furthermore, a set of looseness detection switches is fixedly installed on the right side of the inner end of the looseness sensing cavity. The looseness detection switches are tactile switches, with the button end of the looseness detection switches facing to the left. A silicone insert is embedded in both the left and right ends of the reciprocating slider relative to the looseness detection switch. In the natural state of the reset connector, the right end of the silicone insert is in contact with the button end of the looseness detection switch, and the looseness detection switch is in the pressed-on state. When the left end of the counterweight block is in contact with the left side of the inner end of the counterweight groove, the right end of the insertion post is completely pressed into the insertion hole by the left end of the counterweight block. At this time, the right end of the silicone insert is in contact with the button end of the looseness detection switch, but the looseness detection switch is in the unpressed-on state.

[0010] Furthermore, the counterweight body is equipped with a microcontroller and a power supply component electrically connected to it; a first notch is opened on the top of the outer peripheral surface of the counterweight body, and a buzzer and an on / off switch electrically connected to the microcontroller are installed on the inner end face of the first notch; the loosening detection switch is electrically connected to the microcontroller; when the loosening detection switch is in the pressed start state, the loosening detection switch feeds a feedback signal to the microcontroller, and the microcontroller controls the buzzer to start.

[0011] Furthermore, a second notch is provided at the bottom of the outer peripheral surface of the counterweight body; a charging port and a power display electrically connected to the power supply component are installed on the inner end face of the second notch.

[0012] This invention provides a vibration counterweight dummy for simulating real-person vibration tests, which has the following beneficial effects:

[0013] This invention constructs a core support skeleton through biomimetic structural design. The chest component simulates the human thoracic structure to form a rigid support for the upper body, while the hip component forms a stable foundation for the lower body. The lumbar rubber column accurately simulates the elastic buffering characteristics of the human lumbar spine, achieving flexible transmission of vibration energy. The arm component achieves multi-angle rotation through movable joints and is wrapped with biomimetic skin, effectively simulating the swinging posture of the human arm with the torso, significantly reducing vibration reflection errors, and comprehensively improving the simulation accuracy of the dummy's morphological characteristics and dynamic response to real people in a vibration environment. This invention installs a lumbar force sensor between the bottom of the lumbar rubber column and the connecting plate at the bottom of the lumbar spine. When vibration is transmitted to the lumbar component through the hip component, the lumbar rubber column undergoes elastic deformation. The force sensor can collect pressure signals in real time during the deformation process, accurately quantifying the force of vibration on the human lumbar spine, providing core mechanical parameters for vibration test data analysis, and helping to conduct in-depth research on the mechanical effects of vibration environment on the human body.

[0014] This invention features adjustable counterweights located at the top of the thoracic vertebrae, the outer side of the shoulder joint, and the bottom of the legs. By inserting different numbers of lead weights into the counterweight slots, and combining the insertion and engagement of the socket holes with the counterweight socket studs, along with the axial locking of the locking nuts, precise adjustment of the mass of each part can be achieved. The threaded locking engagement of the bolt and nut locking parts with the counterweight socket studs ensures stable positioning of the lead weights during vibration. This invention can flexibly simulate the center of gravity distribution characteristics of real people of different body types, solving the problems of rudimentary counterweight adjustment mechanisms, low weight adjustment accuracy, single gear position, and large deviations in the center of gravity position in traditional dummies.

[0015] This invention employs a monitoring and early warning system comprised of a reset connector, a reciprocating slider, a loosening detection switch, a microcontroller, and a buzzer. During vibration testing, if the counterweight lead block shifts due to loosening of the locking mechanism, the reset connector pushes the slider to move, triggering the loosening detection switch via a silicone insert. The microcontroller immediately controls the buzzer to sound an alarm, enabling immediate detection of counterweight loosening and preventing data distortion caused by counterweight displacement. This addresses the shortcomings of traditional dummies, which lack effective condition monitoring methods and struggle to detect structural connection failures promptly, ensuring the reliability of test data and the safety of the testing process.

[0016] This invention, through the synergistic effect of structural biomimicry, precise counterweight, real-time monitoring, and safety early warning, can realistically simulate the mass distribution, mechanical response, and posture changes of a real person in a vibration environment. It can be widely used in vibration environment testing in aerospace, automotive engineering, military equipment, and other fields, effectively verifying the safety and comfort of equipment under vibration loads and meeting the high-precision testing requirements of complex vibration scenarios. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram:

[0020] Figure 1 A schematic diagram of the isometric structure of the present invention is shown;

[0021] Figure 2 A schematic diagram of the top isometric structure of the present invention in its split state is shown;

[0022] Figure 3 This diagram shows a schematic diagram of the bottom isometric structure of the present invention in its split state;

[0023] Figure 4 This diagram shows a top isometric view of the counterweight body in its disassembled state according to the present invention.

[0024] Figure 5 This shows a schematic diagram of the bottom isometric structure of the counterweight body in a disassembled state according to the present invention;

[0025] Figure 6 A cross-sectional structural schematic diagram of the counterweight body of the present invention is shown;

[0026] Figure 7 The present invention is shown Figure 6 Schematic diagram of the structure with the central counterweight lead block and locking nut removed;

[0027] Figure 8 The present invention is shown Figure 7 Schematic diagram of the structure with the reciprocating slider and reset connector removed;

[0028] Figure 9 A system composition block diagram of the present invention is shown;

[0029] List of reference numerals

[0030] 1. Thoracic vertebral plate; 101. Thoracic vertebral top connecting plate; 102. Shoulder joint plate; 103. Rib plate; 104. Thoracic vertebral base connecting plate; 2. Arm skeleton rod; 201. Movable joint component; 202. Rotating connecting seat; 203. Rotating connecting shaft; 3. Lumbar vertebral rubber column; 301. Lumbar vertebral force sensor; 302. Lumbar vertebral base connecting plate; 303. Lumbar vertebral top connecting plate; 4. Pelvic block; 401. Pelvic connecting plate; 402. Leg connecting rod; 5. Counterweight body; 501. Counterweight groove; 502. Annular connecting plate; 503. Counterweight sleeve stud; 504. Circular closing plate; 505. Bolt and nut locking component. 506. Counterweight lead block; 507. Socket hole; 508. Locking nut; 509. First locking mating hole; 5010. Second locking mating hole; 5011. First notch; 5012. Buzzer; 5013. On / off switch; 5014. Reciprocating slider; 5015. Reset connector; 5016. Insertion post; 5017. Second notch; 5018. Charging port; 5019. Power indicator; 5020. Silicone insert; 5021. Loosening detection switch; 5022. Loosening sensing cavity; 5023. Socket hole; 5024. Power supply assembly; 5025. Microcontroller. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments 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. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example: Please refer to Figures 1 to 9 :

[0033] This invention proposes a vibration counterweight dummy for simulating vibration tests on real people, comprising: a thoracic vertebral plate 1, with a rib plate 103 sleeved on the outside of the thoracic vertebral plate 1, the rib plate 103 being welded to the rear end face of the thoracic vertebral plate 1; a thoracic vertebral top connecting plate 101 welded to the top of the thoracic vertebral plate 101, and shoulder joint plates 102 welded to the left and right sides of the bottom of the thoracic vertebral top connecting plate 101; a thoracic vertebral bottom connecting plate 104 welded to the bottom of the thoracic vertebral plate 1; a lumbar vertebral rubber column 3 located below the thoracic vertebral plate 1, with a lumbar vertebral top connecting plate 303 fixedly installed on the top of the lumbar vertebral rubber column 3, the lumbar vertebral top connecting plate 303 being fixedly connected to the thoracic vertebral bottom connecting plate 104; a lumbar vertebral force sensor 301 fixedly installed on the bottom of the lumbar vertebral rubber column 3, the lumbar vertebral force sensor 301 fixedly installed on the bottom of the lumbar vertebral force sensor 301; and a pelvic bone block 4 located below the lumbar vertebral rubber column 3. A pelvic connecting plate 401 is fixedly installed on the top of block 4, and the pelvic connecting plate 401 is fixedly connected to the lumbar spine bottom connecting plate 302; leg connecting rods 402 are fixedly installed on both sides of the pelvic block 4; the thoracic vertebra plate 1, the thoracic vertebra top connecting plate 101, the shoulder joint plate 102, the rib plate 103 and the thoracic spine bottom connecting plate 104 together form the chest component, which is covered with bionic skin; the lumbar vertebra rubber column 3, the lumbar vertebra force sensor 301, the lumbar spine bottom connecting plate 302 and the lumbar vertebra top connecting plate 303 together form the lumbar vertebra component, which is covered with bionic skin; the pelvic block 4, the pelvic connecting plate 401 and the leg connecting rods 402 together form the hip component, which is covered with bionic skin; a set of counterweight bodies 5 are fixedly installed on the top of the thoracic vertebra top connecting plate 101, the outer sides of the two shoulder joint plates 102 and the bottom of the two leg connecting rods 402.

[0034] The counterweight body 5 is cylindrical in shape. A counterweight groove 501 with a circular groove structure is opened at the axial center of the right end face of the counterweight body 5. A counterweight sleeve stud 503 is fixedly installed at the axial center of the left side face of the inner end of the counterweight groove 501. The length of the counterweight sleeve stud 503 is consistent with the depth of the counterweight groove 501. A counterweight lead block 506 is inserted into the counterweight groove 501. The counterweight lead block 506 has a circular block structure. A sleeve hole 507 is opened at the axial center of the counterweight lead block 506. The sleeve hole 507 is inserted and matched with the counterweight sleeve stud 503. A lock nut 508 is threaded on the counterweight sleeve stud 503.

[0035] The counterweight body 5 has an annular connecting plate 502 fixedly installed on the right edge of its outer periphery. The left end face of the annular connecting plate 502 has six first locking holes 509 that penetrate its right end face in an annular array. The right side of the counterweight body 5 has a circular closed plate 504 with a circular plate structure. The left end face of the circular closed plate 504 has six second locking holes 5010 that penetrate its right end face in an annular array. The first locking holes 509 and the second locking holes 5010 are fixedly connected by bolt and nut locking parts 505.

[0036] Among them, the circular closed plate 504 of the counterweight body 5 fixedly installed on the outer side of the two shoulder joint plates 102 is fixedly installed with a rotating connecting seat 202; it also includes an arm skeleton rod 2, and a movable joint 201 is rotatably installed at both ends of the arm skeleton rod 2. One of the movable joints 201 is rotatably connected to the rotating connecting seat 202 through a rotating connecting shaft 203; the arm skeleton rod 2, the movable joint 201, the rotating connecting seat 202 and the rotating connecting shaft 203 together form an arm assembly, which is covered with bionic skin.

[0037] The counterweight body 5 has a loosening sensing cavity 5022 with a circular cavity structure inside. A plug-in hole 5023 connected to the counterweight groove 501 is opened at the axial center of the right side of the inner end of the loosening sensing cavity 5022. A reciprocating slider 5014 is slidably inserted into the loosening sensing cavity 5022. The left end face of the reciprocating slider 5014 is fixedly connected to the left side of the inner end of the loosening sensing cavity 5022 by a spring-loaded reset connector 5015. A plug-in post 5016 is fixedly installed at the axial center of the right end face of the reciprocating slider 5014. The plug-in post 5016 is slidably inserted into the plug-in hole 5023. In the natural state, the right end of the reset connector 5015 passes through the plug-in hole 5023 and is located inside the counterweight groove 501.

[0038] A looseness detection switch 5021 is fixedly installed on the right side of the inner end of the looseness sensing cavity 5022. The looseness detection switch 5021 is a tactile switch, and the button end of the looseness detection switch 5021 faces to the left. A silicone insert 5020 is embedded in both the left and right ends of the reciprocating slider 5014 relative to the looseness detection switch 5021. Due to the material properties of the silicone insert 5020, it is ensured that when the silicone insert 5020 presses against the button end of the looseness detection switch 5021, it will not cause excessive hard pressure on the button end of the looseness detection switch 5021, thus ensuring that it can be pressed to activate. To prevent damage from being pressed, in the natural state of the reset connector 5015, the right end face of the silicone insert 5020 is pressed against the button end of the looseness detection switch 5021, at which time the looseness detection switch 5021 is in the pressed-on state; when the left end face of the counterweight lead block 506 is in contact with the left side of the inner end of the counterweight groove 501, the right end of the plug post 5016 is completely pressed into the plug hole 5023 by the left end face of the counterweight lead block 506, at which time the right end face of the silicone insert 5020 is in contact with the button end of the looseness detection switch 5021, but the looseness detection switch 5021 is in the unpressed-on state.

[0039] The counterweight body 5 contains a microcontroller 5025 and a power supply component 5024 electrically connected to it. A first notch 5011 is opened on the top of the outer peripheral surface of the counterweight body 5. A buzzer 5012 and an on / off switch 5013 electrically connected to the microcontroller 5025 are installed on the inner end face of the first notch 5011. A loosening detection switch 5021 is electrically connected to the microcontroller 5025. When the loosening detection switch 5021 is in the pressed start state, the loosening detection switch 5021 sends a feedback signal to the microcontroller 5025, and the microcontroller 5025 controls the buzzer 5012 to start.

[0040] The counterweight body 5 has a second notch 5017 at the bottom of its outer periphery; the inner end face of the second notch 5017 is equipped with a charging port 5018 and a power display 5019 that are electrically connected to the power supply component 5024.

[0041] The working principle of this embodiment:

[0042] This vibration counterweight dummy, through the synergistic effect of structural biomimetic design, counterweight adjustment mechanism, vibration transmission monitoring, and safety early warning function, achieves the simulation and monitoring of the stress state of a real person in a vibration environment. The specific working principle is as follows:

[0043] Core skeletal support: The chest component is composed of thoracic lamina 1, thoracic top connecting plate 101, shoulder joint plate 102, rib plate 103 and thoracic bottom connecting plate 104 welded together to form a rigid support frame for the upper body; the pelvic block 4 of the hip component is connected to the lumbar bottom connecting plate 302 through pelvic connecting plate 401 to form the support base for the lower body; the rib plate 103 is welded and fixed to the thoracic lamina 1 to simulate the structure of the human thoracic cage and provide a stable shape for the upper body.

[0044] Flexible vibration transmission: The lumbar rubber column 3 in the lumbar component is connected to the thoracic bottom connecting plate 104 through the lumbar top connecting plate 303, and the bottom is connected to the pelvic connecting plate 401 through the lumbar force sensor 301 and the lumbar bottom connecting plate 302. During the vibration test, the external vibration is transmitted from the leg connecting rod 402 through the pelvic block 4 and the lumbar component to the thoracic component. The lumbar rubber column 3 simulates the elastic buffer characteristics of the human lumbar spine to realize the flexible transmission of vibration energy.

[0045] Arm component linkage: The arm bone rod 2 of the arm component can rotate at multiple angles through the movable joint 201, the rotating connecting shaft 203 and the rotating connecting seat 202 on the outside of the shoulder joint plate 102. During vibration, it can simulate the swinging posture of the human arm with the torso. The outer bionic skin further reduces vibration reflection error.

[0046] Counterweight adjustment and center of gravity simulation: The counterweight body 5 at the top of the thoracic vertebra top connecting plate 101, the outer side of the shoulder joint plate 102, and the bottom of the leg connecting rod 402 is fixed to the corresponding parts through a circular closed plate 504. Different numbers of counterweight lead blocks 506 can be inserted into the counterweight groove 501 according to the test requirements. The counterweight lead blocks 506 are inserted into the counterweight sleeve studs 503 through the sleeve hole 507, and then axially locked by the locking nut 508 to achieve precise adjustment of the mass of each part and simulate the center of gravity distribution of real people of different body types.

[0047] The bolt and nut locking part 505 is threadedly locked with the counterweight sleeve stud 503 to limit and fix the counterweight lead block 506 inserted in the counterweight groove 501, preventing the counterweight body 5 from loosening during vibration.

[0048] Vibration force monitoring: The lumbar force sensor 301 is installed between the bottom of the lumbar rubber column 3 and the lumbar bottom connecting plate 302. When the vibration is transmitted to the lumbar component through the hip component, the lumbar rubber column 3 undergoes elastic deformation. The lumbar force sensor 301 collects the pressure signal during the deformation process in real time, quantifies the force of vibration on the human lumbar spine, and provides core mechanical parameters for vibration test data analysis.

[0049] Furthermore, this invention also includes a counterweight loosening monitoring and early warning function:

[0050] Before starting the vibration test, press the start / stop switch 5013 to activate the counterweight loosening monitoring and early warning function;

[0051] At this time, the bolt and nut locking part 505 and the counterweight sleeve stud 503 are locked together by thread, which limits and fixes the counterweight lead block 506 inserted in the counterweight groove 501. Therefore, based on the pressure of the left end of the counterweight lead block 506 against the right end of the plug post 5016, the right end of the silicone insert 5020 is in contact with the button end of the loosening detection switch 5021. However, the loosening detection switch 5021 is in the unpressed start state, while the reset connector 5015 is in the compressed state.

[0052] During the vibration test, if the bolt and nut locking part 505 on the counterweight sleeve stud 503 becomes loose due to vibration, the counterweight lead block 506 will not be able to be limited and fixed. The counterweight lead block 506, fitted onto the bolt and nut locking part 505, will also shift along the counterweight sleeve stud 503 under the influence of vibration. When the counterweight lead block 506 shifts, it will disengage from the pressing state against the right end of the insertion post 5016. At this time, the reset connector 5015, which is in a compressed state, will quickly reset and spring back, thereby pushing the reciprocating sliding... Block 5014 moves to the right along the looseness sensing cavity 5022. At this time, the silicone insert 5020 presses against the button end of the looseness monitoring switch 5021, so that the looseness monitoring switch 5021 is in the activated state. The looseness monitoring switch 5021 transmits the signal to the microcontroller 5025. The microcontroller 5025 controls the buzzer 5012 to sound an alarm, thereby notifying the staff immediately that there is a displacement of the counterweight lead block 506, which affects the accuracy of the vibration test data. The vibration test needs to be stopped in time to re-lock and stabilize the counterweight lead block 506 to ensure the accuracy of the vibration test data.

[0053] Through the above mechanism, the dummy can accurately simulate the mass distribution and mechanical response of a real person in a vibration environment, and can also monitor the status of the equipment in real time, ensuring the accuracy of the test data and the safety of the test process.

Claims

1. A vibration dummy for simulating a human vibration test, characterized by, include: A thoracic lamina (1) is provided, with a rib plate (103) sleeved on the outside of the thoracic lamina (1), and the rib plate (103) is welded to the rear end face of the thoracic lamina (1); a thoracic vertebral top connecting plate (101) is welded to the top of the thoracic lamina (1), and shoulder joint plates (102) are welded to the left and right sides of the bottom of the thoracic vertebral top connecting plate (101); a thoracic vertebral bottom connecting plate (104) is welded to the bottom of the thoracic lamina (1); a lumbar vertebral rubber column (3) is provided below the thoracic lamina (1), and a lumbar vertebral top connecting plate (303) is fixedly installed on the top of the lumbar vertebral rubber column (3), and the lumbar vertebral top connecting plate (303) is fixedly connected to the thoracic vertebral bottom connecting plate (104); a lumbar force sensor (301) is fixedly installed at the bottom of the lumbar vertebral rubber column (3), and a lumbar vertebral bottom connecting plate (302) is fixedly installed at the bottom of the lumbar force sensor (301); a pelvic bone block (4) is provided below the lumbar vertebral rubber column (3), and a pelvic bone is fixedly installed on the top of the pelvic bone block (4). The connecting plate (401), the pelvic connecting plate (401) and the lumbar bottom connecting plate (302) are fixedly connected; the pelvic block (4) is fixedly installed with leg connecting rods (402) on both sides; the thoracic vertebral plate (1), the thoracic top connecting plate (101), the shoulder joint plate (102), the rib plate (103) and the thoracic bottom connecting plate (104) together form the chest component, which is covered with bionic skin; the lumbar rubber column (3) and the lumbar force sensor ( The lumbar spine assembly consists of a lumbar spine bottom connecting plate (301), a lumbar spine top connecting plate (302), and a lumbar spine top connecting plate (303), which is covered with bionic skin. The pelvic bone block (4), the pelvic bone connecting plate (401), and the leg connecting rod (402) together form a hip assembly, which is covered with bionic skin. A set of counterweight bodies (5) are fixedly installed on the top of the thoracic spine top connecting plate (101), the outer sides of the two shoulder joint plates (102), and the bottom of the two leg connecting rods (402). The counterweight body (5) is cylindrical in shape. A counterweight groove (501) with a circular groove structure is provided at the axial part of the right end face of the counterweight body (5). A counterweight connecting stud (503) is fixedly installed at the axial part of the left side face of the inner end of the counterweight groove (501). The length of the counterweight connecting stud (503) is consistent with the depth of the counterweight groove (501). A counterweight lead block (506) is inserted into the counterweight groove (501). The counterweight lead block (506) has a circular block structure. A connecting hole (507) is provided at the axial part of the counterweight lead block (506). The connecting hole (507) is inserted and matched with the counterweight connecting stud (503). A locking nut (508) is threaded on the counterweight connecting stud (503). The counterweight body (5) has a loosening sensing cavity (5022) with a circular cavity structure inside; the right side of the loosening sensing cavity (5022) has a plug-in hole (5023) that communicates with the counterweight groove (501); a reciprocating slider (5014) is slidably inserted into the loosening sensing cavity (5022), and the left end of the reciprocating slider (5014) is fixedly connected to the left side of the inner end of the loosening sensing cavity (5022) by a spring-type reset connector (5015); a plug-in post (5016) is fixedly installed at the right end of the reciprocating slider (5014), and the plug-in post (5016) is slidably inserted into the plug-in hole (5023); in the natural state, the right end of the reset connector (5015) passes through the plug-in hole (5023) and is located inside the counterweight groove (501); A set of looseness detection switches (5021) is fixedly installed on the right side of the inner end of the looseness sensing cavity (5022). The looseness detection switches (5021) are tactile switches, and the button end of the looseness detection switches (5021) faces to the left. A silicone insert (5020) is embedded in the left and right end faces of the reciprocating slider (5014) relative to the looseness detection switches (5021). In the natural state of the reset connector (5015), the right end face of the silicone insert (5020) is connected to the looseness detection switch (5021). When the button end of the loosening detection switch (5021) is pressed into contact, the loosening detection switch (5021) is in the pressed start state. When the left end face of the counterweight lead block (506) is in contact with the left side of the inner end of the counterweight groove (501), the right end of the plug post (5016) is completely pressed into the plug hole (5023) by the left end face of the counterweight lead block (506). At this time, the right end face of the silicone insert (5020) is in contact with the button end of the loosening detection switch (5021), but the loosening detection switch (5021) is in the unpressed start state.

2. The vibration dummy body for simulating a real person vibration test according to claim 1, wherein An annular connecting plate (502) is fixedly installed on the right edge of the outer periphery of the counterweight body (5). The left end face of the annular connecting plate (502) has six first locking holes (509) that penetrate through the right end face. A circular closed plate (504) with a circular plate structure is provided on the right side of the counterweight body (5). The left end face of the circular closed plate (504) has six second locking holes (5010) that penetrate through the right end face. The first locking holes (509) and the second locking holes (5010) are fixedly connected by bolt and nut locking parts (505).

3. The vibration dummy body for simulating a real person vibration test according to claim 2, wherein A rotating connecting seat (202) is fixedly installed on the circular closed plate (504) of the counterweight body (5) fixedly installed on the outer side of the two shoulder joint plates (102); it also includes an arm bone rod (2), and a movable joint (201) is rotatably installed at both ends of the arm bone rod (2), one of the movable joints (201) being rotatably connected to the rotating connecting seat (202) through a rotating connecting shaft (203); the arm bone rod (2), the movable joint (201), the rotating connecting seat (202) and the rotating connecting shaft (203) together form an arm assembly, which is covered with bionic skin.

4. The vibration counterweight dummy for simulating real-person vibration tests according to claim 3, characterized in that, The counterweight body (5) is equipped with a microcontroller (5025) and a power supply component (5024) electrically connected to it; a first notch (5011) is opened on the top of the outer peripheral surface of the counterweight body (5), and a buzzer (5012) and an on / off switch (5013) electrically connected to the microcontroller (5025) are installed on the inner end face of the first notch (5011); the loosening monitoring switch (5021) is electrically connected to the microcontroller (5025); when the loosening monitoring switch (5021) is in the pressed start state, the loosening monitoring switch (5021) sends a feedback signal to the microcontroller (5025), and the microcontroller (5025) controls the buzzer (5012) to start.

5. The vibration counterweight dummy for simulating real-person vibration tests according to claim 4, characterized in that, The counterweight body (5) has a second notch (5017) at the bottom of its outer peripheral surface; the inner end face of the second notch (5017) is equipped with a charging port (5018) and a power display (5019) that are electrically connected to the power supply component (5024).

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