A multi-directional cushioning adaptive restraint device for a shoulder of a side impact dummy

Abstract

The present application relates to the technical field of automobile detection equipment, and particularly relates to a multi-directional buffering adaptive shoulder restraint device for a side impact dummy, which comprises a shoulder simulation assembly and a mounting seat, the mounting seat is mounted on the dummy torso, the shoulder simulation assembly is used for simulating human shoulder bones and muscles, and comprises a connecting rod unit and an upper arm connecting seat, the upper arm connecting seat is used for connecting the dummy upper arm and / or a test stress input device, so that the stress can be received and transmitted to the mounting seat through the connecting rod unit, the connecting rod unit comprises connecting rod skeletons and honeycomb aluminum structures fixedly installed outside the connecting rod skeletons, through the cooperation of the connecting rod skeletons and the honeycomb aluminum structures, the stress is transmitted in multiple paths from the upper arm connecting seat to the mounting seat and buffered, the impact force buffering of the bones, joints and muscles at the connection between the shoulder joint and the torso can be more realistically simulated, so that the stress condition of the occupant during the automobile side impact can be more realistically simulated and detected, and the experimental effect of the collision experiment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile detection equipment, in particular to a shoulder multidirectional buffering self-adaptive restraint device for a side impact dummy. BACKGROUND

[0002] In the collision safety test of an automobile, a side impact dummy is needed to simulate the situation of a real passenger in a collision, so as to evaluate the protection ability of the vehicle structure for the passenger when the vehicle structure collides at a certain speed. Based on different test results, the safety design of the vehicle can be optimized to ensure the safety of the passengers.

[0003] The shoulder structure of the existing side impact dummy is generally simulated by splicing bones (damping material) between each other to simulate human bones. However, the simulation effect of the actual human tissue is poor, which easily leads to distortion of the test results and the real passenger side impact scene, and makes it difficult to further optimize the safety design of the vehicle. SUMMARY

[0004] In order to solve the above technical problems, the present application provides a shoulder multidirectional buffering self-adaptive restraint device for a side impact dummy, comprising:

[0005] A shoulder simulation assembly for simulating human shoulder bones and muscles;

[0006] A mounting seat, the trunk side of the mounting seat is fixedly installed at the corresponding part of the trunk of the dummy, and the shoulder side of the mounting seat has a containing cavity;

[0007] A swing block, one end of the swing block is rotatably installed in the containing cavity, the other end of the swing block is connected to the shoulder simulation assembly, a stop block is arranged on the side surface of the swing block along the rotation direction of the swing block, and the stop block is made of flexible material; wherein when the swing block rotates relative to the mounting seat, the stop block abuts against the wall surface of the containing cavity to generate resistance to the rotation of the swing block:

[0008] The shoulder simulation assembly comprises a connecting rod unit, the connecting rod unit is rotatably connected to one end of the swing block away from the mounting seat, and a rotation damping structure with adjustable damping force is arranged at the rotation connection position of the connecting rod unit and the swing block, and the connecting rod unit has an upper arm connecting area;

[0009] The upper arm connecting seat is fixedly installed on the upper arm connecting area, and the upper arm connecting seat is used for connecting the upper arm of the side impact dummy and / or the upper arm connecting seat is used for connecting a test stress input device;

[0010] The connecting rod unit comprises a connecting rod skeleton and a honeycomb aluminum structure fixedly installed outside the connecting rod skeleton, and the upper arm connecting area is located on the connecting rod skeleton;

[0011] The connecting rod frame comprises a first connecting rod frame and a second connecting rod frame, and the first connecting rod frame and the second connecting rod frame are fixedly connected with a first honeycomb aluminum structure and a second honeycomb aluminum structure, respectively.

[0012] The first connecting rod frame and the second connecting rod frame are rotatably connected to the swing block, and the first connecting rod frame and the second connecting rod frame are fixedly connected, and the upper arm connecting area is located on the second connecting rod frame.

[0013] Preferably, the accommodating cavity is filled with a buffering material, and the hardness of the buffering material is lower than the hardness of the stop block.

[0014] Preferably, the stop block and the swing block are fixedly connected by using resin curing.

[0015] Preferably, the third connecting rod frame is further provided, the third connecting rod frame is externally connected with a third honeycomb aluminum structure, the third connecting rod frame is used for simulating a clavicle, both ends of the third connecting rod frame are provided with clavicle fixing parts, one of the clavicle fixing parts is fixedly connected to the first connecting rod frame, and the other clavicle fixing part is fixedly connected to a corresponding position of the head or the neck of the side impact dummy.

[0016] Preferably, the thickness and the density of the first honeycomb aluminum structure, the second honeycomb aluminum structure and the third honeycomb aluminum structure are gradually reduced.

[0017] Preferably, the honeycomb of the honeycomb aluminum structure is filled with an elastic material, and the filling density of the elastic material in the first honeycomb aluminum structure, the second honeycomb aluminum structure and the third honeycomb aluminum structure is gradually reduced.

[0018] Preferably, the shoulder skin assembly is further provided, the shoulder skin assembly is wrapped outside the shoulder simulation assembly, and memory cotton is filled between the shoulder skin assembly and the shoulder simulation assembly.

[0019] The shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the application comprises a shoulder simulation assembly and a mounting seat, the mounting seat is used for being fixedly installed at a corresponding position of a dummy torso, the shoulder simulation assembly is used for simulating human shoulder bones and muscles, the shoulder simulation assembly comprises a connecting rod unit and an upper arm connecting seat, the upper arm connecting seat is used for connecting an upper arm of the dummy and / or connecting a test stress input device, so that the upper arm connecting seat can receive stress and transmit the stress to the mounting seat through the connecting rod unit, the connecting rod unit comprises a connecting rod framework and a honeycomb aluminum structure fixedly installed outside the connecting rod framework, the connecting rod framework comprises a first connecting rod framework and a second connecting rod framework, and the first connecting rod framework and the second connecting rod framework are respectively fixedly connected with a first honeycomb aluminum structure and a second honeycomb aluminum structure; the first connecting rod framework and the second connecting rod framework are rotatably connected to a swing block, and the first connecting rod framework and the second connecting rod framework are fixedly connected; and the upper arm connecting area is located on the second connecting rod framework. Through the cooperation of the connecting rod frameworks and the honeycomb aluminum structures, the stress is transmitted and buffered in multiple paths from the upper arm connecting seat to the mounting seat, the buffering condition of the bones, joints and muscles at the connection between the shoulder joint and the torso to the impact force can be more truly simulated, the force condition of the occupant when the automobile has a side impact can be more truly simulated and detected, and the experimental effect of the collision experiment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of the shoulder simulation assembly of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application and the connection of the mounting seat;

[0021] Figure 2 is a connection schematic view of the mounting seat and the swing block of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application;

[0022] Figure 3a is a structure schematic view of the swing block of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application;

[0023] Figure 3b is a sectional view of the swing block A-A section of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application;

[0024] Figure 4 is a structure schematic view of the mounting seat and the first connecting rod of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application;

[0025] Figure 5 is a structure schematic view of the first connecting rod of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the application;

[0026] Figure 6is a structural schematic view of a second connecting rod of a shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the embodiment of the present application;

[0027] Figure 7 is another view of the structural schematic view of the second connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0028] Figure 8 is a whole structural schematic view of the first connecting rod and the second connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0029] Figure 9 is another view of the structural schematic view of the first connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0030] Figure 10 is a structural schematic view of a third connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0031] Figure 11 is another view of the structural schematic view of the third connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0032] Figure 12 is a sectional view of the third connecting rod of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0033] Figure 13 is a whole structural schematic view of a connecting rod unit of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0034] Figure 14 is a whole structural schematic view of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy in a shoulder normal position provided by the embodiment of the present application;

[0035] Figure 15 is a whole structural schematic view of the shoulder multidirectional buffering adaptive restraint device for the side impact dummy provided by the embodiment of the present application;

[0036] Wherein, 1, mounting seat; 11, containing cavity; 12, rotating shaft; 13, trunk connecting screw; 2, swing block; 21, first stop block; 22, second stop block; 23, locking pin; 24, connecting hole; 25, damping adjusting sleeve; 3, first connecting rod; 31, first connecting rod skeleton; 311, total connecting part; 312, first positioning hole; 313, second positioning hole; 314, clavicle connecting hole; 32, first honeycomb aluminum structure; 4, second connecting rod; 41, second connecting rod skeleton; 411, second connecting rod connecting part; 412, first matching hole; 413, second matching hole; 414, upper arm connecting area; 42, second honeycomb aluminum structure; 5, upper arm connecting seat; 6, third connecting rod; 61, third connecting rod skeleton; 611, first clavicle fixing part; 6111, stop pin; 612, second clavicle fixing part; 613, clavicle connecting nail; 62, third honeycomb aluminum structure; 631, gasket; 632, fastening screw; 7, shoulder skin assembly. DETAILED DESCRIPTION

[0037] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0038] As shown in Figure 1 , Figure 2 , Figure 3a and Figure 3b , in one preferred embodiment, the present application provides a shoulder multidirectional buffering adaptive restraint device for a side impact dummy, comprising a shoulder simulation assembly for simulating human shoulder bones and muscles, and a mounting seat 1, the trunk side of the mounting seat 1 is fixedly installed on the corresponding part of the dummy trunk, and the shoulder side of the mounting seat 1 is provided with a containing cavity 11, the shoulder simulation assembly is connected between the mounting seat 1 and the swing block 2, one end of the swing block 2 is rotatably connected in the containing cavity 11, the other end of the swing block 2 is connected to the shoulder simulation assembly, and a stop block is arranged on the swing block 2 along the side surface in the rotating direction of the swing block 2, and the stop block is made of flexible material;

[0039] When the swing block 2 rotates in the accommodating cavity 11, the stop block can abut against the wall surface of the accommodating cavity 11 to generate resistance to the rotation of the swing block 2, that is, when the shoulder simulation assembly is connected to the torso of the dummy through the swing block 2 and the mounting base 1, when the shoulder simulation assembly receives external force, it generates corresponding displacement, and the swing block 2 in the accommodating cavity 11 is also moved, and by arranging the stop block on the swing block 2, the movement of the swing block 2 in the accommodating cavity 11 can be buffered, so that the buffering effect of the joints, bones and muscles at the connection between the shoulder joint and the torso when the shoulder and the upper arm are subjected to force can be more realistically simulated, so that the force condition of the occupant when the vehicle is subjected to side impact can be more realistically simulated and detected, and the experimental effect of the collision experiment can be improved.

[0040] As shown in Figure 2 , the mounting base 1 is fixedly connected to the torso of the dummy through the torso connecting screw 13 on one side, and in some other embodiments, the mounting base 1 can also be connected to the torso in other ways. In addition, in the embodiments shown in Figure 2 , Figure 3a and Figure 3b , the swing block 2 is connected to the mounting base 1 through the hinged connection with the rotating shaft 12, that is, the swing block 2 has the freedom of rotation around the shaft relative to the mounting base 1, and the first stop block 21 and the second stop block 22 are arranged on both sides of the direction of rotation of the swing block 2, and when the swing block 2 rotates to a certain amplitude, the first stop block 21 or the second stop block 22 can abut against the wall surface of the accommodating cavity 11 to generate a buffering effect.

[0041] Among them, the stop block can be made of flexible materials such as rubber, the stop block and the swing block 2 are connected by resin curing, and the hardness of the resin curing layer is different from the hardness of the stop block, so that the movement of the swing block 2 in the accommodating cavity 11 is buffered to different degrees, and the simulation of the mounting base 1 and the swing block 2 to the human body is more realistic. Further, a buffering material such as foam can also be filled in the accommodating cavity 11, and the hardness of the buffering material is lower than that of the stop block, which is equivalent to the buffering effect of relatively soft tissues such as fat of the shoulder, and further improves the authenticity of the simulation. The specific type, density and hardness of the stop block and the buffering material can be determined through experiments, and details are not described here.

[0042] A locking pin 23 is further arranged between the swing block 2 and the rotating shaft 12 for locking the swing block 2 and the rotating shaft 12, and the two ends of the rotating shaft 12 are lapped on the hole positions of the two side walls of the accommodating cavity 11, and a clamping spring or the like structure can be installed on the part corresponding to the hole position of the rotating shaft 12, so that the relative rotation between the rotating shaft 12 and the hole position has a certain damping. In this way, when the shoulder simulation assembly is subjected to force and tends to rotate the swing block 2, the rotation damping can hinder and buffer the rotation, and the resistance effect between the joints can be simulated.

[0043] In addition, in Figure 2 In the embodiment shown, the swing block 2 and the mounting base 1 only have the freedom of rotation around the axis, in some other embodiments, the swing block 2 can also be installed in the mounting base 1 through a ball hinge structure or a universal joint structure, when these structures are adopted, the stop block and the rotating shaft 12 and other structures should be adjusted adaptively, which will not be described here.

[0044] As Figure 13 In one preferred embodiment, the shoulder simulation assembly includes a connecting rod unit, in Figure 13 In the embodiment shown, the connecting rod unit specifically includes a first connecting rod 3, a second connecting rod 4 and a third connecting rod 6, the connecting rod unit is rotatably connected to the end of the swing block 2 away from the mounting base 1, a damping force adjustable rotating damping structure is arranged at the rotating connection between the connecting rod unit and the swing block 2, the connecting rod unit is provided with an upper arm connecting area 414, the upper arm connecting area 414 is used for installing an upper arm connecting seat 5, the upper arm connecting seat 5 is used for connecting the upper arm of the side impact dummy, thereby being used for vehicle side impact test, or the upper arm connecting seat 5 can also be connected to an external test stress input device, thereby testing the stress and movement of the connecting rod unit, the mounting base and the dummy torso when the upper arm connecting seat 5 receives different angles and sizes of stress.

[0045] Further, the connecting rod unit includes a connecting rod framework and a honeycomb aluminum structure fixedly installed outside the connecting rod framework, the connecting rod framework is used for simulating the shoulder bones, clavicle and other shoulder bones of the human body, the honeycomb aluminum structure is fixedly installed on the connecting rod framework, and the upper arm connecting area is located on the connecting rod framework, so that when the upper arm is stressed, the stress borne by the upper arm is transmitted to the mounting base through the rigid structure of the connecting rod framework, and the honeycomb aluminum structure is used for simulating the muscle, fat and other structures wrapped outside the bones, in the side impact test, when the shoulder of the dummy receives the impact, the honeycomb aluminum structure first receives the external impact, and then the impact is transmitted to the connecting rod framework, and further transmitted to the mounting base 1 and the torso. By arranging the connecting rod framework and the honeycomb aluminum structure, the simulation of the device on the human shoulder is more realistic, thereby improving the effect of the side impact test.

[0046] In the above embodiment, the connecting rod framework is preferably a rigid structure, the rigidity of which is preferably similar to the rigidity of the human bones, and the honeycomb aluminum is a porous honeycomb-shaped aluminum or aluminum alloy structure, which can be fixedly installed on the connecting rod framework through gluing and curing and the like. The specific material and corresponding parameters of the connecting rod framework, and the honeycomb density and other parameters of the honeycomb aluminum can be determined through experiments, which will not be described here.

[0047] As Figures 4 to 13As shown, the connecting rod frame specifically includes a first connecting rod frame 31, a second connecting rod frame 41, and a third connecting rod frame 61, on which a first honeycomb aluminum structure 32, a second honeycomb aluminum structure 42, and a third honeycomb aluminum structure 62 are fixedly connected respectively, the first connecting rod frame 31 and the second connecting rod frame 41 are rotatably connected to the swing block 2, and the first connecting rod frame 31 and the second connecting rod frame 41 are fixedly connected, and the upper arm connecting area 414 is located on the second connecting rod frame 41.

[0048] Specifically, as shown in Figure 4 and Figure 5 The shoulder multi-directional buffering self-adaptive restraint device for a side impact dummy provided by the present application is composed of a first connecting rod frame 31 and a first honeycomb aluminum structure 32 thereon, and the first connecting rod frame 31 is provided with a total connecting part 311 at one end, which is used for connecting with the connecting hole 24 of the swing block 2.

[0049] As shown in Figure 6 and Figure 7 The shoulder multi-directional buffering self-adaptive restraint device for a side impact dummy provided by the present application is composed of a second connecting rod frame 41 and a second honeycomb aluminum structure 42 thereon, and the second connecting rod frame 41 is provided with a second connecting rod connecting part 411 at one end, which is a stepped shaft structure, the first section of which is used for cooperating with the connecting hole 24 of the swing block 2, and the tail end is used for cooperating with the total connecting part 311.

[0050] The first connecting rod frame 31 is further provided with a first positioning hole 312 and a second positioning hole 313, and the second connecting rod frame 41 is provided with a first cooperating hole 412 and a second cooperating hole 413, and through the cooperation of the total connecting part 311 and the second connecting rod connecting part 411, the first positioning hole 312 and the first cooperating hole 412, and the second positioning hole 313 and the second cooperating hole 413, the first connecting rod frame 31 and the second connecting rod frame 41 are fixedly connected through three points.

[0051] As shown in Figure 8 The second connecting rod connecting part 411 is sleeved with a damping adjusting sleeve 25 at one end penetrating the connecting hole 24, and by adjusting the installation position of the damping adjusting sleeve 25 on the second connecting rod connecting part 411, and the contact force and friction force between the damping adjusting sleeve 25 and the end face of the connecting hole 24, the rotational damping of the relative rotation between the first connecting rod frame 31, the second connecting rod frame 41 and the swing block 2 can be adjusted. For the specific damping adjustment mode of the damping adjusting sleeve 25, reference can be made to the related technical solutions in the prior art, which will not be described here. In addition, the relative angles of the installation of the second connecting rod connecting part 411 and the connecting hole 24, and the total connecting part 311 and the connecting hole 24 can be adjusted, which only needs to be rotated by a certain angle and then connected using the damping adjusting sleeve 25.

[0052] In addition, as shown in Figure 6 and Figure 7 The upper arm connecting seat 5 is fixedly connected to the upper arm connecting area 414 of the second connecting rod 4 through the screw at the bottom of the upper arm connecting seat 5, and in some other embodiments, the upper arm connecting seat 5 can also be fixedly connected to the second connecting rod 4 through other ways, and for the specific connection between the upper arm connecting seat 5 and the upper arm, it can also refer to some other prior art, which will not be described here.

[0053] Through the above arrangement, when the upper arm connecting seat 5 of the upper arm connecting area 414 is stressed, there are two force transmission paths between it and the mounting seat 1, one of which is transmitted through the rotating connection between the second connecting rod frame 41 and the swing block 2, and the other is transmitted through the second connecting rod frame 41 and the first connecting rod frame 31 to the swing block 2, so that the conduction of multidirectional lateral force can be realized, the simulation of the human shoulder is more realistic, and the experimental effect of the side impact experiment can be improved.

[0054] As shown in Figures 9 to 12 The third connecting rod 6 is composed of the third connecting rod frame 61 and the third honeycomb aluminum structure 62 thereon, the third connecting rod frame 61 is used for simulating the clavicle, and both ends of the third connecting rod frame 61 are provided with clavicle fixing parts, one of which is fixedly connected to the first connecting rod frame 31, and the other is fixedly connected to the corresponding position of the head or neck of the side impact dummy. By arranging the third connecting rod 6 and the connection between the third connecting rod frame 61 and the first connecting rod frame 31, the external force received by the third connecting rod 6 (clavicle) can be transmitted to the swing block 2 and the mounting seat 1 through the third connecting rod frame 61, the clavicle fixing part and the first connecting rod frame 31.

[0055] In Figures 9 to 12In the shown embodiment, a clavicle connecting hole 314 is formed on the first connecting rod frame 31, and a first clavicle fixing part 611 and a second clavicle fixing part 612 are fixedly connected to the end of the third connecting rod frame 61, the first clavicle fixing part 611 is connected to the clavicle connecting hole 314 through a clavicle connecting nail 613, and the first clavicle fixing part 611 and the clavicle connecting hole 314 can be fixedly connected or rotatably connected with rotation damping. In order to more truly simulate the connection between the clavicle and the shoulder bone, it is preferred to be fixedly connected or rotatably connected with high rotation damping. For example, the clavicle connecting nail 613 can be a screw, the clavicle connecting hole 314 is a threaded hole, and the first clavicle fixing part 611 is fixedly connected through the threaded cooperation of the two, and the like. The connection mode of the first clavicle fixing part 611, the clavicle connecting nail 613 and the clavicle connecting hole 314, and the connection mode of the second clavicle fixing part 612 and the corresponding part are not described in detail. In addition, the relative angle of the installation of the first clavicle fixing part 611 and the clavicle connecting hole 314 can be adjusted, so that the relative angle of the first connecting rod frame 31 and the third connecting rod frame 61 is adjustable. Only the first clavicle fixing part 611 and the clavicle connecting hole 314 are rotated by a corresponding angle, and then the two are fastened and connected by the clavicle connecting nail 613.

[0056] As shown in Figure 12 The first clavicle fixing part 611 has a shaft-shaped end part which can be inserted into the inner hole of the third connecting rod frame 61 and locked with each other by a stop pin 6111, which plays a role similar to key groove connection, and can stably connect the first clavicle fixing part 611 and the third connecting rod frame 61 as a whole.

[0057] In addition, a gasket 631 and a fastening screw 632 are also provided on the third connecting rod frame 61. After the third connecting rod frame 61 and the third honeycomb aluminum structure 62 on it are fixedly bonded, the gasket 631 is locked on the third connecting rod frame 61 by the fastening screw 632, and the edge position of the gasket 631 can press the third honeycomb aluminum structure 62 tightly, which can improve the connection strength of the third honeycomb aluminum structure 62 and the third connecting rod frame 61. Of course, similar gaskets and fastening screws can also be provided at the connection between the first connecting rod frame 31 and the second connecting rod frame 41 and the corresponding honeycomb aluminum structure to improve the connection strength. Through the above setting, when the honeycomb aluminum structure is used as a force bearing member, in addition to its own deformation and other buffering of external force, the remaining stress can be more stably and accurately transmitted to the corresponding frame structure, and then to the mounting seat 1 and the torso.

[0058] In one preferred embodiment, the thickness and density of the first, second and third honeycomb aluminum structures 32, 42 and 62 gradually decrease, so that the strength of the three honeycomb aluminum structures gradually decreases, which can better simulate the different densities and hardness of the muscles, fat and other tissues of different parts of the human body. In addition, the honeycomb aluminum structure can also be filled with elastomer material, and the hardness and / or filling density of the elastomer material in different honeycomb aluminum structures can also be distinguished, so that the human body can be more realistically simulated, and the experimental effect is improved.

[0059] Figure 14 The shape of the shoulder multidirectional buffering adaptive restraint device for a side impact dummy provided by the application is shown in the following figure, in which Figure 14 As shown in the figure, the device is fixedly connected to the torso of the dummy through the mounting seat 1, connected to the upper arm of the dummy through the upper arm connecting seat 5, and connected to the head and neck of the dummy through the second clavicle fixing part 612. When the upper arm, shoulder, head and neck of the dummy are subjected to impact, in addition to the buffering of the impact force by the buffering structure, the remaining stress can be transmitted to the mounting seat 1 through the link skeleton structure of the device, and then to the torso, so that multidirectional stress transmission is achieved, and the effect of the impact experiment is improved.

[0060] Further, as shown in the following figure, Figure 15 In one preferred embodiment, the shoulder skin assembly 7 is wrapped around the shoulder simulation assembly, and memory foam is filled between the shoulder skin assembly 7 and the shoulder simulation assembly. In this way, when any position of the external contour of the shoulder skin assembly 7 is subjected to external impact, the impact force can be transmitted to the internal honeycomb aluminum structure (internal muscle tissue with relatively hard texture) or the link skeleton (skeleton) through the memory foam (similar to the surface skin and subcutaneous fat) inside the shoulder skin assembly 7 (human skin tissue). The shoulder skin assembly 7 can also be made of memory foam, or other materials with similar skin hardness and density such as silicone. Specifically, the memory foam can be heated to 80℃ to soften, quickly adhere to the outer surface of the honeycomb aluminum and the link, fixing block and clavicle exposed area, apply a pressure of 0.5-1kPa to solidify, and reserve a movement gap of 2-3mm at the link joint. At the same time, it is also necessary to reserve a certain gap at the connection part of the device and the upper arm, torso and clavicle, so that it is more convenient to install. In addition, the specific material of the shoulder skin assembly 7, as well as the specific material and density of the memory foam inside, can be determined through experiments, which will not be described here.

[0061] The shoulder multidirectional buffering adaptive constraint device for a side impact dummy provided by the application adopts a three-layer gradient buffering material shoulder system, namely an outer low-speed buffering layer (memory cotton), a middle stiffness support layer (honeycomb aluminum), and an inner dynamic response layer (elastic body), and each layer realizes its own function, breaking through the limitation of single material performance. The device can realize the conduction of the multidirectional force of the shoulder of the side impact dummy and the buffering absorption of multiple angles, and can improve the effect of the side impact experiment.

[0062] In the above embodiment of the application, the initial force acts on the upper arm of the dummy close to the shoulder area, and the force is used as the starting of the whole force conduction, is conducted to the upper arm connecting seat 5 through the structure such as a bolt, the upper arm connecting seat 5 is fixedly connected with the second connecting rod framework 41 by a bolt, and the lateral force is conducted to the connecting rod and clavicle mechanism (third connecting rod framework 61), so that the following force conduction path is generated:

[0063] Clavicle path: the upper arm connecting seat 5 of the second connecting rod framework 41-the first clavicle fixing part 611-the memory cotton (wrapping the clavicle part)-the third honeycomb aluminum structure 62-the clavicle;

[0064] Connecting rod mechanism path one: the upper arm connecting seat 5 of the second connecting rod framework 41-the first clavicle fixing part 611-the memory cotton (wrapping the first connecting rod part)-the first connecting rod framework 31 and the honeycomb aluminum and elastic material device-the swing block 2-the mounting seat 1-the torso

[0065] Connecting rod mechanism path two: the upper arm connecting seat 5 of the second connecting rod framework 41-the memory cotton (wrapping the second connecting rod part)-the honeycomb aluminum and elastic material-the swing block 2-the mounting seat 1-the torso

[0066] In the connecting rod mechanism path one, the honeycomb aluminum at the first connecting rod part absorbs a large amount of energy, and reduces the stress of the subsequent swing block 2; in the clavicle path, the honeycomb aluminum at the clavicle part further attenuates the remaining energy, and protects the clavicle.

[0067] In addition, based on the physical and mechanical properties of the honeycomb aluminum, in the initial deformation stage, the stiffness resists rapid displacement; when the deformation increases, the damping consumes vibration energy. When the residual force acts, the elastic deformation buffering is first performed, and then the high-frequency fluctuation is reduced through the damping, so that the finally conducted force is more stable, and the shoulder is protected. In the connecting rod mechanism path one, the honeycomb aluminum at the first connecting rod part absorbs a large amount of energy, and reduces the stress of the subsequent swing block 2; in the connecting rod path, the memory cotton buffers the residual force and the honeycomb aluminum output force. In the connecting rod mechanism path two, the elastic material at the second connecting rod framework 41 first buffers through elastic deformation, and then reduces the energy fluctuation by using the damping, so that the force conducted to the torso is more stable, and the shoulder is prevented from being damaged due to impact overload.

[0068] Through the above multi-stage buffering, path-conducting and absorbing, the high-strength impact force is gradually attenuated and finally transmitted to the clavicle and torso, so that the shoulder injury is effectively reduced, the reality of the buffering performance simulation of the human tissue structure is improved, and finally the experimental effect of the side impact experiment is improved, so that the safety coefficient of the vehicle can be accurately judged. The force transmitted to the clavicle and torso is greatly reduced, the shoulder injury is effectively reduced, the reality of the buffering performance simulation of the human tissue structure is improved, and finally the experimental effect of the side impact experiment is improved, so that the safety coefficient of the vehicle can be accurately judged.

[0069] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, those skilled in the art should understand that modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A multi-directional cushioning adaptive restraint device for a side impact dummy shoulder for simulating the impact force on a shoulder of an occupant in a vehicle during a side impact, characterized by, The shoulder simulation assembly is used for simulating human shoulder bones and muscles. The mounting seat is fixedly mounted on the corresponding part of the torso of the dummy, and the shoulder side of the mounting seat is provided with a containing cavity. The swing block is rotatably mounted in the containing cavity, and the other end of the swing block is connected to the shoulder simulation assembly. The shoulder simulation assembly comprises a connecting rod unit and an upper arm connecting seat. The upper arm connecting seat is fixedly mounted on the upper arm connecting area. The connecting rod unit comprises a connecting rod framework and a honeycomb aluminum structure fixedly mounted outside the connecting rod framework. The upper arm connecting area is located on the connecting rod framework. The first connecting rod framework and the second connecting rod framework are respectively fixedly connected with a first honeycomb aluminum structure and a second honeycomb aluminum structure. The first connecting rod framework and the second connecting rod framework are rotatably connected to the swing block, and the first connecting rod framework and the second connecting rod framework are fixedly connected.

2. The multi-directional cushioning adaptive shoulder restraint device for a side impact dummy according to claim 1, wherein The upper arm connecting area is located on the second connecting rod framework.

3. The multi-directional cushioning adaptive shoulder restraint device for a side impact dummy of claim 1, wherein, The containing cavity is filled with a buffering material, and the hardness of the buffering material is lower than that of the stop block.

4. The multi-directional cushioning adaptive shoulder restraint device for a side impact dummy of claim 1, wherein, The stop block and the swing block are connected by resin curing.

5. The multi-directional cushioning adaptive shoulder restraint device for a side impact dummy of claim 4, wherein, A third connecting rod framework is further included.

6. The multi-directional cushioning adaptive shoulder restraint device for a side impact dummy of claim 5, wherein, The thickness and density of the first honeycomb aluminum structure, the second honeycomb aluminum structure and the third honeycomb aluminum structure gradually decrease.

7. A multidirectional cushioning adaptive restraint device for a shoulder of a side impact dummy according to any of claims 1-6, characterized in that, The honeycomb of the honeycomb aluminum structure is filled with an elastic material, and the filling density of the elastic material in the first honeycomb aluminum structure, the second honeycomb aluminum structure and the third honeycomb aluminum structure decreases in turn. A shoulder skin assembly is further included. The shoulder skin assembly is wrapped outside the shoulder simulation assembly, and memory foam is filled between the shoulder skin assembly and the shoulder simulation assembly.

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