CN220854102U - Visceral dummy device for automobile collision experiment - Google Patents

Abstract

The application discloses a visceral dummy device for an automobile collision experiment, which relates to the field of automobile safety detection and comprises a head assembly, a neck assembly, a trunk assembly, an arm assembly and a leg assembly, wherein the trunk assembly comprises a chest skin, a spine assembly, an inner cavity assembly, a shoulder assembly, a sternum assembly, a rib assembly, an abdomen and a hip assembly, the chest skin wraps other components of the trunk assembly, the inner cavity assembly is internally provided with an inner cavity and viscera, the spine assembly, the rib assembly and the sternum assembly are arranged outside the inner cavity, the lower end of the spine assembly is connected with the hip assembly, the shoulder assembly is connected with the upper end of the spine assembly, and the abdomen is arranged between the inner cavity assembly and the hip assembly. The technical scheme of the application can be used as a human body substitute in collision experiments to acquire more accurate biomechanical response data of each part, and can adapt to collision experiments under different environments.

Description

Visceral dummy device for automobile collision experiment

Technical Field

The utility model relates to the field of automobile safety detection, in particular to a visceral dummy device for an automobile collision experiment.

Background

In the age of rapid development of automobiles, driving comfort and safety have been important indexes for automobile evaluation. In the process of developing automobiles, a safety evaluation device is required to evaluate the rationality of a protection mechanism of the automobile on a human body in driving or accident, and at present, automobile collision dummy is adopted to evaluate the driving comfort and safety of the automobile in both home and abroad automobile evaluation.

In order to ensure that the dummy provides more accurate data parameters in the automobile safety evaluation process, calibration experiments are required to be carried out on the whole or parts of the dummy before an automobile collision experiment, and the reasonability of the dummy meeting the collision experiment is judged according to biomechanical response parameters generated in the experiment of each part.

The biomechanical response performance of the joint part of the dummy is detected in the current experiment, and the dummy is detected to meet the rationality of the collision experiment through the calibration experiment of the whole person or the part. In the experiment, sensors are arranged at joint parts such as the head, the neck, the leg and the like of the dummy to obtain biomechanical response parameters, and data parameters of the response parts are obtained to judge the reasonability of the dummy experiment. The experimental use condition of the dummy can well reflect biomechanical reaction parameters of the joint part. However, in some specific safety performance detection environments, it is necessary to detect the influence of the external environment on the viscera of the human body, obtain the magnitude of the bearing force or the damage condition of the viscera, and clearly show the safety performance of the automobile in the experiment through the response data generated by the viscera.

At present, domestic research on viscera damage is not comprehensive enough, and due to limited viscera data acquisition ways, shock waves and the like in the automobile collision experiment can cause a certain damage value to human viscera in the automobile safety field. Therefore, a dummy capable of reflecting the biomechanical response parameters received by the real human viscera in the automobile collision experiment is needed, and a reference basis is provided for the experiment.

Disclosure of utility model

The utility model aims at: the viscera dummy device for the automobile collision experiment solves the problem that a dummy used in the prior art cannot meet viscera damage research when the automobile collision experiment is carried out, provides a more effective way for acquiring viscera damage data, better reflects biomechanical response parameters suffered by human viscera in the collision experiment, and provides a reference basis for judging experimental results.

The technical scheme of the utility model is as follows: provided is a visceral dummy device for an automobile collision experiment, the device comprising: head assembly, neck assembly, trunk assembly, arm assembly and leg assembly;

One end of the neck assembly is connected with the head assembly, the other end of the neck assembly is connected with the trunk assembly through bolts, the arm assembly is connected with the trunk assembly, and the leg assembly is connected with the lower end of the trunk assembly;

The trunk assembly comprises an inner cavity assembly and an abdomen, and the abdomen is assembled at the lower end of the inner cavity assembly;

The inner cavity assembly comprises an inner cavity and an internal organ assembly, the inner cavity is internally provided with a containing cavity, and the internal organ assembly is assembled in the containing cavity.

Further, a ridge groove and a rib groove are arranged outside the inner cavity, a viscera installation groove is arranged in the accommodating cavity of the inner cavity, and a wire arrangement groove for installing a sensor is arranged at the viscera installation groove;

Visceral assemblies include heart, left lung, right lung, liver, left kidney and right kidney; and patch type sensor mounting grooves are reserved on the heart, the left lung, the right lung, the liver, the left kidney and the right kidney.

Further, the torso assembly further includes a chest skin, a spine assembly, a shoulder assembly, a sternum assembly, a rib assembly, and a hip assembly;

The spine assembly is arranged in a spine groove of the inner cavity, and a gear structure for adjusting the posture and an elastomer for simulating the dynamic response of a human body are arranged in the spine assembly;

The shoulder assembly is connected with the spine assembly, the shoulder assembly comprises a left shoulder part and a right shoulder part, the right shoulder part comprises a shoulder assembly body, a shoulder blade and a shoulder elastomer, one end of the shoulder blade is connected with the shoulder assembly body through a bolt, the other end of the shoulder blade is connected with the shoulder elastomer, and the shoulder elastomer is connected with the side wall of the upper half part of the spine assembly; the left shoulder part and the right shoulder part are symmetrical in structure and consistent in connection mode;

The sternum assembly is arranged on the inner cavity and comprises a clavicle component and a sternum component, one end of the clavicle component is connected with the sternum component, and the other end of the clavicle component is connected with the scapula;

The rib assembly is arranged in a rib groove of the inner cavity, one side of the rib assembly is connected with the sternum assembly, and the other side of the rib assembly is connected with the spine assembly; the rib assembly is provided with a sensor assembly hole;

The chest skin is internally provided with a containing cavity, and each assembly part is positioned in the containing cavity of the chest skin.

Further, the trunk assembly further comprises a buttock assembly, and the buttock assembly is connected with the lower end of the spine assembly;

The hip assembly comprises a hip pelvic bone, hip skin, thighbone and hip, wherein the hip pelvic bone and the hip skin are integrated, the lower end of the hip pelvic bone is provided with a femur hole site, the femur is connected to the femur hole site of the hip pelvic bone, and the hip is sleeved on the outer side of the femur.

Further, the head assembly includes: front head skin, front skull, upper neck force sensor simulator, hindbrain scoop skeleton, hindbrain scoop skin and neck rotation pin;

The front skull is connected with the back brain spoon skeleton, the upper neck force sensor simulator is connected with the lower end of the front skull, the upper end of the upper neck force sensor simulator is provided with a plane which is flush with the plane of the lower end of the front skull, the skin of the front head is arranged on the outer side of the front skull, the skin of the back brain spoon is arranged on the outer side of the back brain spoon skeleton, and the head assembly is connected with the neck assembly through a neck rotating pin.

Further, the neck assembly includes: the upper support is arranged on the rubber block, the neck joint, the neck steel rope, the neck and the neck;

The rubber block is fixed on the neck joint, one side of the neck joint is connected with the upper neck force sensor simulator through a neck rotating pin, and the other side of the neck joint is connected with the neck; the neck and the neck mounting upper bracket are respectively provided with a central hole, and a neck steel cable passes through the central holes of the neck and the neck mounting upper bracket and is connected with the upper end of the spine assembly; the upper support for cervical part installation is connected with the upper end of the spine assembly.

Further, the arm assembly includes left arm and right arm, and left arm includes: an upper arm, an upper arm connector, a lower arm, a wrist connector and a hand;

One end of the upper arm connecting piece is connected with the upper arm, the other end of the upper arm connecting piece is connected with the lower arm, one end of the wrist connecting piece is connected with the lower arm, and the other end of the wrist connecting piece is connected with the hand; the right arm and the left arm are symmetrical in structure and consistent in assembly mode.

Further, the leg assembly includes a left leg and a right leg, the left leg including: thigh skeleton, thigh skin, sensor simulator, knee assembly, shank skeleton, shank skin, ankle, foot;

One end of the sensor simulator is connected with the thigh skeleton, the other end of the sensor simulator is connected with the knee assembly, the thigh skin is sleeved on the outer sides of the thigh skeleton and the sensor simulator, one end of the shank skeleton is connected with the knee assembly, the other end of the sensor simulator is connected with the ankle, the shank skin is sleeved on the outer sides of the shank skeleton and the ankle, a cylindrical rod is arranged at one end of the ankle, the foot is connected with the cylindrical rod end of the ankle, and a rotating structure is arranged in the middle of the ankle; the right leg and the left leg are symmetrical in structure and consistent in assembly mode.

Further, the knee assembly includes: knee skin, knee rubber pad, knee armature, knee slider;

The knee skin one end is equipped with the ring groove, and knee rubber pad and knee skeleton are all installed in the ring groove, knee skeleton one end and knee rubber pad butt, and the other end is connected with the sensor simulator, and the knee slider includes two, and installs respectively in the both sides of knee skeleton, and the knee skeleton passes through the knee slider and is connected with the shank skeleton.

The beneficial effects of the utility model are as follows:

The first technical scheme of the utility model simulates the human body structure setting, and comprises a head assembly, a neck assembly, a trunk assembly, an arm assembly and a leg assembly, wherein the trunk assembly comprises a chest skin, a spinal column assembly, an inner cavity assembly, a shoulder assembly, a sternum assembly, a rib assembly, an abdomen and a hip assembly, each component simulates the human body structure setting, and the inner cavity assembly is also internally provided with a viscera structure comprising a heart, a lung, a liver and a kidney, so that biomechanical response data of each part of a dummy can be acquired as a human body substitute in a collision experiment, the safety is exact, the applicability is strong, the secondary development is convenient, the structure is simple, the implementation is easy, and a more accurate reference basis can be provided for experiments of the damage degree of visceral organs in a human body.

The second technical scheme is that the trunk assembly of the visceral dummy simulates the whole upper trunk arrangement of a human body in structure, comprises parts such as a collarbone, a sternum and an inner cavity assembly, and is similar to the structure of a human chest, wherein ribs are models obtained after the simplified processing of rib data of an adult human body is scanned, the inner cavity assembly part comprises inner cavities and various viscera, the data are obtained by scanning the adult human body, the models are obtained after the simplified processing, the bionic response performance can be truly reflected in experiments, and the response data of the viscera parts can be reflected more than the response data of the traditional three-series dummy.

Thirdly, the inner cavity of the utility model is provided with the mounting groove of each viscera, the position of the mounting groove is consistent with the corresponding position of the human body, and each viscera is mounted at the corresponding position. The inner cavity is also provided with a sensor wiring groove, which is beneficial to the assembly of the sensor. A patch type sensor mounting groove is reserved on each viscera and used for sensor assembly, and damage response data are analyzed by adopting data in an experiment, so that a reference basis is provided for a human viscera safety part in the aspect of automobile safety.

Fourth, in the technical scheme of the utility model, the spine assembly structurally has two gear meshing structures, so that the posture of a dummy can be adjusted in the experimental process, and more flexibility is provided for experiments. The spine assembly and the shoulder assembly are respectively provided with two elastic bodies, and are made of high-performance rubber materials, so that slight swing can be generated in a collision experiment, and the biomechanical effect generated by a human body during collision can be reflected.

Fifth, the visceral dummy in the technical scheme of the utility model can switch the standing posture and sitting posture of the dummy by adjusting the assembly relation of the femur of the hip assembly, and can adapt to experiments such as impact under different environments.

Drawings

FIG. 1 is a schematic exploded view of a torso assembly in accordance with an embodiment of the present utility model;

fig. 2 is an overall construction view of a visceral dummy apparatus for an automobile collision experiment according to an embodiment of the present utility model;

FIG. 3 is an exploded schematic view of a head assembly according to one embodiment of the utility model;

FIG. 4 is an exploded schematic view of a neck assembly according to one embodiment of the present utility model;

FIG. 5 is a schematic illustration of a shoulder assembly configuration according to one embodiment of the utility model;

FIG. 6 is a schematic diagram of an arm assembly according to one embodiment of the utility model;

FIG. 7 is a schematic illustration of a leg assembly structure according to one embodiment of the utility model;

FIG. 8 is a schematic view of a knee assembly configuration according to one embodiment of the utility model;

FIG. 9 is a schematic illustration of a lumen assembly structure according to one embodiment of the present utility model;

FIG. 10 is a schematic illustration of a viscera assembly structure according to one embodiment of the utility model;

Wherein the 1-head assembly, 11-front head skin, 11-front skull, 13-upper neck force sensor simulator, 14-rear brain scoop armature, 15-rear brain scoop skin, 16-neck swivel pin, 2-neck assembly, 21-neck joint rubber block, 22-neck joint, 23-neck cable, 24-neck, 25-neck mount upper bracket, 3-torso assembly, 31-chest skin, 32-spine assembly, 33-cavity assembly, 100-cavity, 200-viscera assembly, 201-heart, 202-left lung, 203-right lung, 204-liver, 205-left kidney, 206-right kidney, 34-shoulder assembly, 301-shoulder assembly, 302-shoulder blade, 303-shoulder elastomer, 35-sternum assembly, 36-rib assembly, 37-abdomen, 38-hip assembly, 4-arm assembly, 41-upper arm, 42-upper arm connector, 43-lower arm, 44-connector, 45-hand, 5-leg assembly, 51-thigh armature, 52-thigh armature, 53-leg, 53-knee sensor, 54-knee armature, 55-knee armature, 404-knee armature, and knee armature assembly are provided.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1 to 10, the present embodiment provides a visceral dummy device for an automobile crash test for performing automobile safety detection, placed on an experimental parking space, the device comprising: five parts of a head assembly 1, a neck assembly 2, a trunk assembly 3, an arm assembly 4 and a leg assembly 5.

The head assembly 1 includes a front head skin 11, a front skull 12, an upper neck force sensor simulator 13, a rear brain scoop skeleton 14, a rear brain scoop skin 15, and a neck swivel pin 16.

The neck assembly 2 comprises a rubber block 21, a neck joint 22, a neck steel cable 23, a neck 24 and a neck mounting upper bracket 25.

The trunk assembly 3 comprises a chest skin 31, a spine assembly 32, an inner cavity assembly 33, a shoulder assembly 34, a sternum assembly 35, a rib assembly 36, an abdomen 37 and a buttock assembly 38, and a neck and trunk connecting piece is arranged at the upper end of the spine assembly 32.

The arm assembly 4 comprises a left arm and a right arm, the structures of the left arm and the right arm are symmetrical, and the left arm comprises an upper arm 41, an upper arm connecting piece 42, a lower arm 43, a wrist connecting piece 44 and a hand 45.

The leg assembly 5 includes left and right legs which are symmetrical in structure, the left leg including a thigh skeleton 51, thigh skin 52, sensor simulator 53, knee assembly 54, calf skeleton 55, calf skin 56, ankle 57, foot 58.

Wherein the inner chamber assembly 33 comprises an inner chamber 100 and an viscera assembly 200, the viscera assembly 200 comprising a heart 201, a left lung 202, a right lung 203, a liver 204, a left kidney 205, and a right kidney 206; shoulder assembly 34 includes shoulder assembly 301, scapula 302, and shoulder elastomer 303. The knee assembly 54 includes a knee skin 401, a knee rubber pad 402, a knee armature 403, and a knee slider 404.

In the embodiment, the sensor is installed in the visceral dummy device for the automobile collision experiment and is placed on an experiment parking space for experiment, and biomechanical response parameters are obtained by installing the sensor.

The visceral dummy device for the automobile collision experiment has the following structure and installation mode:

As shown in fig. 3, in the head assembly 1, a front skull 12 is connected with a rear brain spoon skeleton 14 through screws to form a whole for simulating the human skull, an upper neck force sensor simulator 13 is connected with the whole through screws for installing the upper neck force sensor simulator, a plane at the connection position of the upper end of the upper neck force sensor simulator 13 is flush with a plane at the lower end of the front skull 12, a front head skin 11 is installed on the outer side of the front skull 12, and a rear brain spoon skin 15 is installed on the outer side of the rear brain spoon skeleton 14.

The head assembly 1 and the neck assembly 2 are connected through a neck rotation pin 16, specifically, the lower end of the upper neck force sensor simulator 13 is provided with a groove, two sides of the groove are provided with pin hole mounting posts, as shown in fig. 4, one end of the neck joint 22 is provided with a pin hole mounting post, the pin hole mounting post of the neck joint 22 is arranged in the groove at the lower end of the upper neck force sensor simulator 13, the pin hole of the pin hole mounting post is coaxial with the pin hole on the pin hole mounting post at the lower end of the upper neck force sensor simulator 13, and the neck rotation pin 16 penetrates through the coaxial pin hole to connect the upper neck force sensor simulator 13 and the neck joint 22 together and is locked by a screw.

The front skull 12 and the rear brain skeleton 14 are made of aluminum, and the front skull 12 and the rear brain skeleton 14 made of aluminum have the advantages of light weight, high strength and the like, and compared with other metal materials, the performance of the front skull is closer to that of a human body structure. The front head skin 11 and the back brain spoon skin 15 are made of PVC imitation human skin materials, and the upper neck force sensor simulator 13 is made of high-strength steel.

As shown in fig. 4, in the neck assembly 2, two neck joint rubber blocks 21 are arranged on the plane of the upper end of the neck joint 22, and the two neck joint rubber blocks 21 are contacted with the head assembly 1 for ensuring the motion response characteristic of the head; neck joint 22 is connected to neck 24 by screws; the neck 24 is internally provided with a central hole, and one end of the central hole, which is close to the neck joint 22, is provided with a spherical groove; the neck steel cable 23 is a rod-shaped component, one end of the neck steel cable is provided with a ball head, the rod of the other end is provided with threads, and the threaded end is provided with a lock nut and a gasket; the middle of the neck installation upper bracket 25 is provided with a central hole, the neck steel cable 23 passes through the neck 24 and the central hole of the neck installation upper bracket 25 and is fixed with a connecting piece of the neck and the trunk at the upper end of the spine assembly 32 through a lock nut and a gasket, wherein the torque of the lock nut ensures that the neck has good bionic performance within a specified range, and the ball head of the neck steel cable 23 is clamped with a spherical groove of the neck 24; the neck mounting upper bracket 25 is fixed to the connection of the neck and the trunk by 4 hexagon socket head cap bolts.

As shown in fig. 1, in the trunk assembly 3, the chest skin 31 is provided with a containing cavity, and the spine assembly 32, the inner cavity assembly 33, the shoulder assembly 34, the sternum assembly 35, the rib assembly 36 and the abdomen 37 are positioned in the containing cavity, and the chest skin 31 is made by casting PVC skin and polyurethane foam.

The spine assembly 32 is of a metal structure and is integrally S-shaped, the physiological curvature of the human S-shaped spine is structurally simulated, the lower end of the spine assembly 32 is provided with a plate surface, three through holes are formed in the plate surface, three threaded holes are formed in the position, connected with the spine assembly 32, of the upper end of the hip assembly 38, and screws penetrate through the through holes of the spine assembly 32 and are fixed on the three threaded holes of the hip assembly 38; the rear end of the spine assembly 32 is provided with two plate surfaces for installing ribs; two sections of gear meshing structures are arranged in the spine assembly 32 and are used for adjusting the shape of the spine assembly 32, and the shape of the spine assembly 32 is adjusted to change the posture of the dummy, namely the bending angle of the human body; the spine assembly 32 also has two segments of elastomer therein to enable the dummy to produce a dynamic response during the course of the experiment.

As shown in fig. 9 and 10, the inner chamber assembly 33 includes an inner chamber 100 and an viscera assembly 200, the viscera assembly 200 including a heart 201, a left lung 202, a right lung 203, a liver 204, a left kidney 205, and a right kidney 206; the inner cavity 100 simulates thoracic muscles and diaphragm muscles of a human body, plays a role of wrapping and fixing viscera, is used for simulating the outline of the thoracic cavity of the human body, rib grooves for wrapping ribs are formed in the periphery of two sides of the inner cavity 100, the inner cavity 100 can be divided into a front part and a rear part from the middle of the side surface for conveniently installing various simulated viscera organs, connecting plates are arranged on the upper surface and the side surface of the inner cavity 100 and used for connecting the front part and the rear part, grooves for wrapping and assembling the spine assembly 32 are formed in the inner cavity 100, and viscera installation positions reserved in the inner cavity 100 according to the positions of the human organs are reserved. The inner wall of the inner cavity 100 is provided with a viscera installation groove, and a wire arrangement groove is arranged at the installation groove for the wire arrangement of the patch type sensor. The heart 201, the left lung 202, the right lung 203, the liver 204, the left kidney 205 and the right kidney 206 are arranged at corresponding positions in the inner cavity 100, and each viscera is provided with a patch type sensor mounting groove, so that a patch type sensor can be assembled to collect data. Each viscera model is manufactured by scanning adult male volunteer human bodies through CT to obtain data, then medical image processing and CAD data processing are carried out on the data, and finally the scanned models are fitted, so that the authenticity of processing digital models is ensured, and model data of various viscera in the chest cavity are extracted by utilizing data processing software.

As shown in fig. 5, the shoulder assembly 34 includes a left shoulder portion and a right shoulder portion that are symmetrical in structure and identical in assembly; the right shoulder part comprises a shoulder assembly 301, a shoulder blade 302 and a shoulder elastic body 303, wherein the threaded end of the shoulder assembly 301 is assembled in a circular hole of the shoulder blade 302 and is locked by matching a washer and a nut; the square plate above the shoulder blade 302 is connected with the shoulder elastomer 303, the shoulder blade 302 has a certain inclination angle, the inclination state of the human shoulder blade is simulated, and the front end of the shoulder blade 302 is provided with a plane for connecting with the clavicle. One end of the shoulder elastic body 303 is connected to a connecting piece of the neck and the trunk at the upper end of the spine assembly 32 and is perpendicular to the connecting plane, the elastic body in the shoulder elastic body 303 is formed by pouring high-performance rubber, the biomechanical bionic performance of the shoulder of a human body is simulated, the shoulder elastic body can slightly swing left and right, and bionic response is timely generated at the moment of being impacted.

The sternum assembly 35 is located at the upper front end of the trunk assembly 3, and the first pair of ribs and the second pair of ribs in the rib assembly 36 are connected with the sternum assembly 35, which approximates the structure of the human sternum. Sternum assembly 35 includes a clavicle component, a sternum and a sternum liner; the sternum is fastened on the sternum pad, and grooves are formed on the sternum, and the grooves are matched with the connected ribs to simulate the skeleton structure of the chest of a human body. The clavicle component comprises a clavicle and a clavicle end rod, the two ends of the clavicle are connected with the clavicle end rod by a bolt, the clavicle end rod can axially rotate, the installation position is convenient to adjust, one end of the clavicle component is connected to the inclined plane of the scapula 302, the other end of the clavicle component is connected to the upper end of the sternum, and the structure of human clavicle is simulated.

The rib assembly 36 has 9 pairs of ribs, simulates 9 pairs of ribs in human body ribs, has 12 pairs of ribs in human body, and the first and second and last groups of ribs are formed by structural interference and have no influence on the supporting strength of the ribs, so that the ribs are removed in the utility model, only the rest 9 pairs of ribs are simulated, each rib in the utility model scans the original data obtained by the human body of an adult male volunteer through CT, then carries out medical image processing and CAD data processing on the data, and finally fits the scanned model, thereby ensuring the authenticity of the processed digital model. As shown in FIG. 1, rib assembly 36 is connected at one end to the plate at the rear end of spine assembly 32 and at the other end to sternum assembly 35.

The rib assembly 36, the spine assembly 32 and the sternum assembly 35 are connected into a whole, and a sensor hole site is arranged at the front end of the whole structure for installing a displacement sensor to measure the displacement formed by the deformation of the chest when the dummy is impacted (displacement standard: refer to the safe displacement of 4 cm-5 cm born by the chest when the normal human body is subjected to cardiopulmonary resuscitation).

The abdomen 37 is assembled between the inner cavity assembly 33 and the hip assembly 38 to play a role of bearing the inner cavity assembly 33, and the abdomen 37 is made of PVC polyurethane skin-like materials, has physiological bionic performance and is used for simulating the human abdomen curve.

The hip assembly 38 is positioned at the lower end of the trunk assembly 3 and comprises a hip pelvic bone, a hip skin, left and right thighbones and left and right hip parts, and is used for simulating the hip physiological curve of a human body; the buttock pelvic bone and buttock skin are an integer, and the left and right thighbone is connected on the left and right connecting hole of buttock assembly 38 lower extreme, and the left and right thighbone simulates human femur, can realize the rotation of shank, crooked each gesture, and when the curved swing of dummy femur, the dummy can realize the position of sitting, and when the downward vertical swing of femur, the dummy can realize the position of standing. The left hip part and the right hip part are sleeved on the outer sides of the left femur and the right femur, the hip part is made of bionic skin material, and the left hip part and the right hip part are mutually independent components, so that the hip part can not influence the movement of the femur; the buttock skin keeps the same with the buttock physiological curve of the human body, and is made of PVC polyurethane material.

As shown in fig. 6, the arm assembly 4 includes a left arm and a right arm, which are symmetrical in structure and identical in assembly mode; the left arm includes an upper arm 41, an upper arm connector 42, a lower arm 43, a wrist connector 44, and a hand 45.

One end of the upper arm connecting piece 42 is provided with a circular ring, the other end of the upper arm connecting piece 42 is provided with a pin hole, the circular ring end of the upper arm connecting piece is sleeved from the lower port of the upper arm 41 and is connected with the upper arm 41 through a screw, a bolt nut is arranged in a groove at the upper end of the lower arm 43, and the end of the upper arm connecting piece 42 with the pin hole is assembled with the lower arm 43 after a sleeve is required to be installed; the wrist connecting piece 44 is provided with a circular ring at one end and two coaxial pin holes at the other end, grooves matched with the pin hole ends of the wrist connecting piece 44 are arranged at the wrist connecting position of the hand 45, the circular ring ends of the wrist connecting piece 44 are sleeved into the holes at the lower end of the lower arm 43 and are connected through screws, and the pin hole ends of the wrist connecting piece 44 are matched with the wrist grooves of the hand 45 and are locked through screws. The upper arm connector 42 and the wrist connector 44 simulate the joint parts of a human body, and can allow the arms to complete the stretching and bending actions.

As shown in fig. 7 and 8, the leg assembly 5 includes a left leg and a right leg which are symmetrical in structure and are assembled in a uniform manner. The left leg includes a thigh skeleton 51, thigh skin 52, a sensor simulator 53, a knee assembly 54, a calf skeleton 55, calf skin 56, ankle 57, foot 58; wherein, knee assembly 54 includes knee skin 401, knee rubber pad 402, knee skeleton 403, knee slider 404.

One end of the sensor simulator 53 is connected with the thigh frame 51, the other end is connected with the knee skeleton 403, the thigh skin 52 is respectively locked by bolts, and the thigh skin 52 is sleeved on the outer sides of the thigh frame 51 and the sensor simulator 53; one end of the knee skin 401 is provided with a circular groove, the knee rubber pad 402 and the knee skeleton 403 are both arranged in the circular groove, the knee rubber pad 402 is padded between the circular groove wall and the knee skeleton 403, the knee slider 404 is provided with two symmetrical assemblies on two sides of the knee skeleton 403 and is used for simulating ligament functions of the knee of a human body, and the knee slider 404 is connected with the knee assembly 54 and the leg skeleton 55. The calf skeleton 55 consists of a calf tube, an upper tibia, a lower tibia and a U-shaped frame, wherein the upper tibia and the lower tibia are arranged on the calf tube, the U-shaped frame is connected with the plane of the upper end of the upper tibia, and the upper tibia and the lower tibia are assembled and positioned through cylindrical pins on the U-shaped frame; a calf skin 56 for simulating calf musculature skin is wrapped around and mounted outside the calf skeleton 55; the ankle 57 connects the calf bone 55 and the foot 58, and the boss of the lower tibia of the calf bone 55 is inserted into the inclined plane hole of the ankle 57 to be connected and fastened, and the cylindrical bar at the other end of the ankle 57 is inserted into the cylindrical hole of the foot 58 to be connected and fastened. Turning the knee slider 404 controls the back and forth rotation of the calf bone 55 to reach leg extension and leg bending; the lower end of ankle 57 is a ball pivot structure and foot 58 is rotatable when the set screw is loosened.

And (3) performing an automobile collision experiment by using an internal organ dummy device for the automobile collision experiment, adjusting the posture of the dummy through each joint, and selecting a part to be detected to install a sensor after the posture adjustment is completed.

A three-way acceleration sensor (comprising three single-axis acceleration sensors and arranged on a sensor mounting seat) is arranged on the plane of the upper end of the upper neck force sensor simulator 13, and three shaft heads of the sensor face the position of the mass center of the head and are used for measuring acceleration values of the mass center of the head in the experiment in three directions, synthesizing the acceleration values and verifying the damaged state of the head.

The displacement sensor is assembled in a displacement sensor assembly hole reserved at the front end of the rib assembly 36, and the forward displacement deformation of the dummy chest part in the experiment is measured.

The rear end of the hip assembly 38 is provided with an acceleration sensor mounting plate, and a three-way acceleration sensor is arranged on the acceleration sensor mounting plate, wherein the three-way acceleration sensor measures acceleration values applied to the hip in three directions in an experiment.

The impact test is performed by installing the pressure collecting sensors in the form of a paste on the internal organ model, that is, installing the pressure collecting sensors in the form of a paste on the heart 201, the left lung 202, the right lung 203, the liver 204, the left kidney 205 and the right kidney 206, and measuring the pressure applied to the internal organs in the test, thereby evaluating the viscera damage value.

A stay-supported displacement sensor is assembled on the knee slider 404, rubber in the knee assembly 54 moves and deforms according to impact force during experiments, the two sliders are displaced in a dislocation manner, and the displacement deformation amount of the knee when the knee is impacted during experiments is measured.

In another embodiment of the present utility model, the upper neck force sensor simulator 13 may be replaced with an upper neck force sensor to measure forces and moments experienced at the upper neck (head and neck junction). The sensor simulator 52 connecting the thigh armature 51 and the knee assembly 54 may be replaced with thigh force sensors measuring force and moment values at the thigh, the sensor wires being arranged along the thigh slots. The upper tibia and the lower tibia in the calf frame 55 are replaced with an upper tibia force sensor and a lower tibia force sensor respectively, and the force and moment values of the leg installation position are measured to judge the damage value of the calf position.

In the present utility model, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The shapes of the various components in the drawings are illustrative, and do not exclude certain differences from the actual shapes thereof, and the drawings are merely illustrative of the principles of the present utility model and are not intended to limit the present utility model.

Although the utility model has been disclosed in detail with reference to the accompanying drawings, it is to be understood that such description is merely illustrative and is not intended to limit the application of the utility model. The scope of the utility model is defined by the appended claims and may include various modifications, alterations and equivalents of the utility model without departing from the scope and spirit of the utility model.

Claims (9)

1. The visceral dummy device for an automobile collision test is characterized by comprising: a head assembly (1), a neck assembly (2), a trunk assembly (3), an arm assembly (4) and a leg assembly (5);

One end of the neck assembly (2) is connected with the head assembly (1), the other end of the neck assembly is connected with the trunk assembly (3) through bolts, the arm assembly (4) is connected with the trunk assembly (3), and the leg assembly (5) is connected with the lower end of the trunk assembly (3);

The trunk assembly (3) comprises an inner cavity assembly (33) and an abdomen (37), and the abdomen (37) is assembled at the lower end of the inner cavity assembly (33);

The inner cavity assembly (33) comprises an inner cavity (100) and a viscera assembly (200), wherein a containing cavity is arranged in the inner cavity (100), and the viscera assembly (200) is assembled in the containing cavity.

2. The visceral dummy device for an automobile collision experiment according to claim 1, wherein a spine groove and a rib groove are arranged outside the inner cavity (100), a visceral mounting groove is arranged in the accommodating cavity of the inner cavity (100), and a bus slot for mounting a sensor is arranged at the visceral mounting groove;

the viscera assembly (200) comprises a heart (201), a left lung (202), a right lung (203), a liver (204), a left kidney (205), and a right kidney (206); patch type sensor mounting grooves are reserved on the heart (201), the left lung (202), the right lung (203), the liver (204), the left kidney (205) and the right kidney (206).

3. Visceral dummy device for automotive crash experiments according to claim 2, wherein the trunk assembly (3) further comprises a chest skin (31), a spine assembly (32), a shoulder assembly (34), a sternum assembly (35), a rib assembly (36) and a hip assembly (38);

the spine assembly (32) is arranged in a spine groove of the inner cavity (100), and a gear structure for adjusting the posture and an elastomer for simulating the dynamic response of a human body are arranged in the spine assembly (32);

The shoulder assembly (34) is connected with the spine assembly (32), the shoulder assembly (34) comprises a left shoulder part and a right shoulder part, the right shoulder part comprises a shoulder assembly body (301), a shoulder blade (302) and a shoulder elastomer (303), one end of the shoulder blade (302) is connected with the shoulder assembly body (301) through a bolt, the other end of the shoulder blade is connected with the shoulder elastomer (303), and the shoulder elastomer (303) is connected with the side wall of the upper half part of the spine assembly (32); the left shoulder part and the right shoulder part are symmetrical in structure and consistent in connection mode;

The sternum assembly (35) is mounted on the inner cavity (100), the sternum assembly (35) comprises a clavicle component and a sternum component, one end of the clavicle component is connected with the sternum component, and the other end of the clavicle component is connected with the scapula (302);

The rib assembly (36) is arranged in a rib groove of the inner cavity (100), one side of the rib assembly (36) is connected with the sternum assembly (35), and the other side of the rib assembly is connected with the spine assembly (32); the rib assembly (36) is provided with a sensor assembly hole;

The chest skin (31) is internally provided with a containing cavity, and all assembly parts are positioned in the containing cavity of the chest skin (31).

4. A visceral dummy device for an automotive crash test according to claim 3, wherein the trunk assembly (3) further comprises a hip assembly (38), the hip assembly (38) being connected to the lower end of the spine assembly (32);

The hip assembly (38) comprises a hip pelvic bone, hip skin, thighbone and hip, wherein the hip pelvic bone and the hip skin are integrated, a femur hole site is formed in the lower end of the hip pelvic bone, the thighbone is connected to the femur hole site of the hip pelvic bone, and the hip is sleeved on the outer side of the femur.

5. A visceral dummy device for an automotive crash test according to claim 3, wherein the head assembly (1) comprises: a front head skin (11), a front skull (12), an upper neck force sensor simulator (13), a rear brain spoon skeleton (14), a rear brain spoon skin (15) and a neck rotating pin (16);

The utility model discloses a neck force sensor simulator, including preceding skull (12), back brain spoon skeleton (14), upper neck force sensor simulator (13) are connected with preceding skull (12) lower extreme, upper neck force sensor simulator (13) upper end is equipped with the plane, and this plane is parallel and level with the plane of preceding skull (12) lower extreme, preceding head skin (11) are installed in the outside of preceding skull (12), the outside at back brain spoon skeleton (14) is installed to back brain spoon skin (15), head assembly (1) are connected with neck assembly (2) through neck swivel pin (16).

6. Visceral dummy device for automotive crash experiments according to claim 5 wherein the neck assembly (2) comprises: the device comprises a rubber block (21), a neck joint (22), a neck steel cable (23), a neck (24) and a neck mounting upper bracket (25);

The rubber block (21) is fixed on a neck joint (22), one side of the neck joint (22) is connected with the upper neck force sensor simulator (13) through the neck rotating pin (16), and the other side of the neck joint is connected with the neck (24); the neck (24) and the neck mounting upper bracket (25) are respectively provided with a central hole, and the neck steel cable (23) passes through the central holes of the neck (24) and the neck mounting upper bracket (25) and is connected with the upper end of the spine assembly (32); the neck mounting upper bracket (25) is connected to the upper end of the spine assembly (32).

7. Visceral dummy device for automotive crash experiments according to claim 1 wherein the arm assembly (4) comprises a left arm and a right arm, the left arm comprising: an upper arm (41), an upper arm connector (42), a lower arm (43), a wrist connector (44) and a hand (45);

one end of the upper arm connecting piece (42) is connected with the upper arm (41), the other end of the upper arm connecting piece is connected with the lower arm (43), one end of the wrist connecting piece (44) is connected with the lower arm (43), and the other end of the wrist connecting piece is connected with the hand (45); the right arm and the left arm are symmetrical in structure and consistent in assembly mode.

8. Visceral dummy device for automotive crash experiments according to claim 1 wherein the leg assembly (5) comprises a left leg and a right leg, the left leg comprising: thigh bone (51), thigh skin (52), sensor simulator (53), knee assembly (54), calf bone (55), calf skin (56), ankle (57), foot (58);

One end of the sensor simulator (53) is connected with the thigh frame (51), the other end of the sensor simulator is connected with the knee assembly (54), the thigh skin (52) is sleeved on the outer sides of the thigh frame (51) and the sensor simulator (53), one end of the shank frame (55) is connected with the knee assembly (54), the other end of the shank frame is connected with the ankle (57), the shank skin (56) is sleeved on the outer sides of the shank frame (55) and the ankle (57), a cylindrical rod is arranged at one end of the ankle (57), the foot (58) is connected with the cylindrical rod end of the ankle (57), and a rotating structure is arranged in the middle of the ankle (57); the right leg and the left leg are symmetrical in structure and consistent in assembly mode.

9. The visceral dummy apparatus for an automobile crash test according to claim 8, wherein the knee assembly (54) comprises: knee skin (401), knee rubber pad (402), knee skeleton (403), knee slider (404);

Knee skin (401) one end is equipped with the ring groove, knee rubber pad (402) and knee skeleton (403) are all installed in the ring groove, knee skeleton (403) one end and knee rubber pad (402) butt, and the other end is connected with sensor simulator (53), knee slider (404) include two, and install respectively in the both sides of knee skeleton (403), knee skeleton (403) are connected with shank skeleton (55) through knee slider (404).