Dummy waist and hip bending test system and method

Abstract

The invention discloses a dummy waist-hip bending test system, which comprises a platform frame, a working platform, a dummy with a waist and a hip, a hip quick clamping assembly, a waist pressing assembly and a thigh quick clamping assembly, and is characterized in that the hip quick clamping assembly comprises a sensor fixing assembly and a thigh bone connecting assembly and is used for fixing the thigh of the hip and detecting and collecting the pelvis angle of hip bending; the stretch-bending transmission assembly is matched with the stretch-bending bracket to apply a tensile force for bending the fixed dummy forwards, so that the bending stress simulation of the dummy is realized; the drawstring position adjusting assembly is used for adjusting a drawstring in the stretch bending transmission assembly according to different stress direction requirements of different models of dummies in the waist bending calibration test so as to meet the calibration test requirement; the suspension arm combination assembly is used for applying required back tension according to different directions of the back tension required by the bending test dummies of different models; and the arc gear transmission assembly is used for realizing bending and stretching of the dummy during a hip bending test.

Description

Technical Field

[0001] The invention relates to the technical field of dummy detection and calibration, and in particular to a dummy waist and hip bending test system and method. Background Art

[0002] In the field of automobile safety performance testing, for the safety of personnel, both domestic and foreign countries use humanoid test devices (i.e. dummies) for automobile safety collision tests as test tools, and obtain corresponding response parameters through various sensors built into various parts of the dummies. These data reflect the degree of human injury during the car collision process, and thus judge the safety performance of the car, and provide a reference for researchers to improve the body structure and optimize the restraint system. In order to obtain accurate and reliable data in automobile collision tests, the dummies must have good biosimulation. In order to verify the biosimulation of the dummies, calibration tests and detection tests are often required for the dummies. However, the current calibration equipment for the waist and hip bending test of dummies has a low degree of integration, a single function, a cumbersome and inconvenient way to fix the dummies, and a slow calibration test efficiency, which can no longer meet the user's increasingly convenient demand for calibration tests of the waist and hips of dummies.

[0003] Therefore, it is now necessary to provide a dummy waist and hip bending test system and method that can simultaneously meet the calibration test and detection test requirements of the dummy waist and hip. Summary of the invention

[0004] In order to solve the above problems in the prior art, the present invention provides a dummy waist and hip bending test system and method which can simultaneously meet the requirements of calibration test and detection test of the dummy waist and hip.

[0005] First, the present invention provides a dummy waist and hip bending test system, which includes a platform frame, a working platform and a dummy with a waist and hips, and The hip quick-clamp assembly includes a fixing and clamping device and a quick-clamping and positioning device to fix the dummy's hips or waist on the work platform; There are two waist clamping assemblies, which are respectively placed on both sides of the dummy to support the dummy's hips on both sides during the calibration test to fix the dummy's hips; The thigh quick clamp assembly includes a sensor fixing component and a thigh bone connecting component, which is used to fix the hip and thigh and detect the pelvic angle of the hip bending. The tension-bending transmission assembly, in cooperation with the tension-bending bracket, applies a pulling force to the fixed dummy to make it bend forward, so as to simulate the bending force of the dummy; The drawstring position adjustment assembly adjusts the drawstring in the drawstring bending transmission assembly to meet the calibration test requirements according to the different force direction requirements of different models of dummies in the waist bending calibration test; The arm assembly applies the required back pulling force according to the different back pulling force directions required for different types of bending test dummies; The circular arc gear transmission assembly is used to achieve the bending and stretching of the dummy during the hip bending test.

[0006] The fixing and clamping device of the hip quick clamp assembly includes a hip joint seat and a clamping block. After the hip joint seat and the clamping block are installed, they are fixed at the hip interface of the dummy with screws; the quick clamping and positioning device of the hip quick clamp assembly includes a base plate, a base, a quick clamping handle, a connecting block, a push rod, an oblique clamping block, a clamping guide block, a positioning guide block, a special-shaped guide block and a T-shaped locking block. After the T-shaped locking block is connected to the base plate, the T-shaped locking block is placed in the slide groove on the working platform and locked and fixed; according to the different models of dummies tested, the position of the T-shaped locking block in the slide groove of the working platform is changed to change the position of the hip quick clamp assembly on the working platform.

[0007] The sensor fixing component of the thigh quick clamp assembly includes a rack connecting seat, a slider seat, a slider, a torque sensor, a sensor connecting seat, an inclination sensor, an inclination sensor mounting seat and a quick clamp screw; the femoral bone connecting component of the thigh quick clamp assembly includes a femoral bone connecting block, a sensor pressing block, a second locking handle and a bolt; wherein the slider is freely slidably mounted on the slider seat, one end of the first sensor connecting seat is connected to the slider through a bolt, and the other end is connected to the torque sensor, one end of the second sensor connecting seat is connected to the torque sensor, and the other end is fixed to the bolt of the femoral bone connecting piece and locked by the second locking handle; the torque sensor is used to collect the bending torque of the hip bending, the inclination sensor mounting seat is fixed to the first sensor connecting seat, and the inclination sensor installed on the inclination sensor mounting seat is used to collect the pelvic angle of the hip bending.

[0008] The waist clamping assembly includes a second T-shaped locking block, a locking plate, a column, a knob, an elliptical fixed column, an arc-shaped clamping block, a guide block and a third locking handle; the two waist clamping assemblies are respectively placed on both sides of the dummy to support the dummy's buttocks on both sides during the calibration test; the waist clamping assembly is fixed to the work platform by the second T-shaped locking block, the locking plate and the third locking handle; the column is fixed on the locking plate, the elliptical fixed column passes through the column and the eccentric setting is fixed by the knob, and during the test, the elliptical fixed column is adjusted to provide certain support on both sides of the dummy's buttocks; the guide block is fixed to the column by the third locking handle, and the height can be freely adjusted; the arc-shaped clamping block is fixed to the guide block by the third locking handle, and during the calibration test, the two arc-shaped clamping blocks are extended into and contact the inner side of the buttocks to fix the dummy's buttocks.

[0009] The stretching and bending bracket includes a back mounting bracket, a reinforcement plate, a steel rope, a steel rope support rod, a locking handle and equal-height screws; wherein, the back mounting bracket is connected to the back of the dummy through the equal-height screws, the reinforcement plate is welded to the back of the back mounting bracket, and the steel rope passes through the steel rope support rod and is connected to the two brackets of the back mounting bracket at both ends; the drawstring hook of the stretching and bending transmission assembly is hung on the steel rope, and the dummy is bent by the servo motor; the drawstring-sensor fixing plate driven by the motor in the boom assembly is hung on the locking handle and the equal-height screws fixed on the reinforcement plate, and is locked with the locking handle to apply a pulling force from the back to the dummy.

[0010] The stretch-bending transmission assembly includes a servo motor, a reducer, an intermediate transmission component, a pulley, a drawstring, a drawstring connecting seat, a tension sensor, a drawstring hook and a fixed base plate; the stretch-bending transmission assembly is fixed to the platform frame through the fixed base plate, one end of the drawstring is fixed to the pulley, and the other end is fixed to the drawstring connecting seat by bolts, one end of the tension sensor is fixed to the drawstring connecting seat, and the other end is connected to the drawstring hook, and the drawstring hook is hung on the steel rope of the stretch-bending bracket; the power provided by the servo motor is decelerated by the reducer and then drives the pulley to rotate through the intermediate transmission component. The rotation of the pulley drives the drawstring to make the dummy's waist bend forward, and the tension sensor collects the tension applied to the dummy's waist when it bends.

[0011] The drawstring position adjustment assembly includes a DC motor, a worm gear reducer, a main shaft, a roller and sliding components symmetrically distributed on both sides of the roller; the DC motor is connected to the worm gear reducer, and the drawstring of the stretch-bending transmission assembly passes around from under the roller; the power provided by the DC motor is transmitted to the main shaft through the worm gear reducer, and the rotation of the main shaft drives the roller to move back and forth through the sliding component, thereby changing the tension direction of the drawstring to meet the different force direction requirements for different models of dummies in waist bending calibration tests.

[0012] The boom assembly includes a crane-boom assembly, a vertical arm, a base fixing plate, a screw lifting device, a screw lifting bottom plate, a motor-pull rope assembly, a second inclination sensor and a level bracket assembly; The motor-pull rope assembly includes a second motor, a steel wheel, a pull rope, a sensor fixing plate and a motor fixing seat. The motor is installed on the screw lifting device through the motor fixing seat. The steel wheel is installed on the motor. One end of the pull rope is connected to the steel wheel and the other end is connected to the sensor fixing plate. The sensor fixing plate is connected to the bending bracket. The motor, the steel wheel and the pull rope are used to apply a back pulling force to the dummy. The height of the motor-pull rope assembly is adjusted through the screw lifting device to meet the back pulling force direction required by different models of bending test dummies. The level bracket assembly is installed on the vertical arm, and the second inclination sensor is installed on the sensor fixing plate after being calibrated on the level bracket, so as to collect the bending angle of the dummy during the bending calibration test.

[0013] The arc gear transmission assembly includes a guide rail support plate, a linear guide rail assembly, a base plate, a second servo motor, a second reducer and an arc gear transmission assembly; wherein the arc gear transmission assembly is fixed to the platform frame by the guide rail support plate, the base plate is fixed to the linear guide rail assembly, and the arc gear transmission assembly is moved left and right by the linear guide rail assembly to meet the different tension positions required by different models of dummies; the power provided by the second servo motor is transmitted to the arc gear transmission assembly after being decelerated by the second reducer, so that the second servo motor controls the upward and downward movement of the arc rack at a specified speed, so that the arc gear transmission assembly transmits power to the dummy through the thigh quick clamp assembly, and the upward and downward movement of the arc rack realizes the bending and stretching of the dummy during the hip bending test.

[0014] Secondly, the present invention also provides a dummy impact test method, including a waist test method and a hip test method. The waist test method specifically includes: fixing the hip joint seat and the clamping block of the fixing and clamping device of the hip quick clamp assembly, placing the dummy on the work platform by the crane in the boom assembly, installing the bending bracket on the back of the waist bending dummy, fixing the pull rope-sensor fixing plate driven by the motor in the boom assembly on the bending bracket, clamping the dummy by the fast clamping and positioning device of the hip quick clamp assembly, hanging the drawstring hook in the bending transmission assembly on the steel rope in the bending bracket, and starting the test program to perform the dummy waist bending test calibration test; The hip test method specifically includes: fixing the hip joint seat and the clamping block of the fixing and clamping device of the hip quick clamp assembly, placing the dummy on the work platform by the crane in the boom assembly, fixing the dummy's hips by clamping the fast clamping and positioning device of the hip quick clamp assembly, and simultaneously clamping the dummy's hips with the arc-shaped clamping block of the waist clamping assembly; fixing the thigh quick clamp assembly and the thigh bone connection assembly installed on the arc gear transmission assembly. Start the test presentation and conduct the dummy hip bending test calibration test.

[0015] The technical solution of the present invention has the following advantages: The test system provided by the present invention can simultaneously meet the requirements of calibration test and detection test of the waist and hip of a dummy, and can be used for bending calibration test of the waist and hip of dummies of various different models; the test system has higher integration, more beautiful appearance, and convenient operation; the test system and method can realize automatic operation, reduce human intervention, and ensure the reliability of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the dummy waist and hip bending test system of the present invention; Figure 2 It is a structural schematic diagram of the dummy waist bending test according to the present invention; Figure 3 It is a structural schematic diagram of the dummy hip bending test according to the present invention; Figure 4 It is a schematic structural diagram of the stretch-bending bracket of the present invention; Figure 5 This is a schematic diagram of the coordination of the stretch-bending bracket of the present invention; Figure 6 It is a structural schematic diagram of the hip quick clamp assembly of the present invention; Figure 7 It is a structural schematic diagram of the hip quick clamp assembly of the present invention; Figure 8 It is a structural schematic diagram of the stretch-bending transmission assembly of the present invention; Fig. 9 It is a schematic diagram of the coordination of the stretch-bending transmission assembly of the present invention; Fig.10 It is a structural schematic diagram of the drawstring position adjustment assembly of the present invention; Fig.11 It is a schematic diagram of the coordination of the drawstring position adjustment assembly of the present invention; Fig.12 It is a structural schematic diagram of the boom assembly of the present invention; Fig.13 It is a schematic diagram of the coordination of the boom assembly of the present invention; Fig.14 It is a structural schematic diagram of the thigh quick clamp assembly of the present invention; Fig.15 It is a schematic diagram of the coordination of the thigh quick clamp assembly of the present invention; Fig.16 It is a structural schematic diagram of the waist compression assembly of the present invention; Fig.17 It is a structural schematic diagram of the waist compression assembly of the present invention; Fig.18 It is a schematic structural diagram of the circular arc gear transmission assembly described in the present invention.

[0018] Reference numerals: 1-platform frame, 2-working platform, 3-bending bracket, 4-hip quick clamp assembly, 5-bending transmission assembly, 6-draw belt position adjustment assembly, 7-arm assembly assembly, 8-waist bending dummy, 9-thigh quick clamp assembly, 10-waist clamping assembly, 11-arc gear transmission assembly, 12-hip bending dummy; 3.1-Back mounting bracket, 3.2-Reinforcement plate, 3.3-Steel rope, 3.4-Steel rope support rod, 3.5-Locking handle, 3.6-Equal height screws; 4.1-Fixed clamping device, 4.2-Quick clamping positioning device, 4.1.1-hip joint seat, 4.1.2-clamping block, 4.2.1-bottom plate, 4.2.2-base, 4.2.3-quick clamping handle, 4.2.4-connecting block, 4.2.5-push rod, 4.2.6-oblique clamping block, 4.2.7-pressing guide block, 4.2.8-positioning guide block, 4.2.9-special-shaped guide block, 4.2.10-T-shaped locking block; 5.1-servo motor, 5.2-reducer, 5.3-intermediate transmission assembly, 5.4-pulley, 5.5-pull belt, 5.6-pull belt connecting seat, 5.7-tension sensor, 5.8-pull belt hook, 5.9-fixed bottom plate; 6.1-DC motor, 6.2-worm gear reducer, 6.3-spindle, 6.4-roller, 6.5-sliding assembly; 7.1- crane-jib assembly, 7.2- vertical arm, 7.3- base fixing plate, 7.4- screw lifting device, 7.5- screw lifting bottom plate, 7.6- motor-pull rope assembly, 7.7- second inclination sensor, 7.8- level bracket assembly, 7.6.1- second motor, 7.6.2- steel wheel, 7.6.3- pull rope, 7.6.4- sensor fixing plate, 7.6.5- motor fixing seat; 9.1-sensor fixing assembly, 9.2-femoral connection assembly, 9.1.1-connection fixing seat, 9.1.2-tilt sensor installation assembly, 9.1.3-torque sensor installation assembly, 9.2.1-femoral connection block, 9.2.2-quick lock assembly; 10.1- second T-shaped locking block, 10.2- locking plate, 10.3- column, 10.4- knob, 10.5- elliptical fixing column, 10.6- arc-shaped pressing block, 10.7- guide block, 10.8- third locking handle; 11.1-guide rail support plate, 11.2-linear guide rail assembly, 11.3-base plate, 11.4-second servo motor, 11.5-second reducer, 11.6-arc gear transmission assembly. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The following content is only an example and explanation of the concept of the present invention. The technicians in the relevant technical field make various modifications or supplements to the specific implementation cases described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all belong to the protection scope of the present invention. The experimental reagents and materials used in the following examples, unless otherwise specified, can all be obtained from commercial channels.

[0020] Example 1: Figure 1 , 2 As shown in Figure 3, this embodiment provides a dummy waist and hip bending test system.

[0021] First, the present invention provides a dummy waist and hip bending test system, which includes a platform frame 1, a working platform 2 and a dummy with a waist and a hip (which can be divided into a waist bending dummy 8 and a hip bending dummy 12, which are distinguished according to different test conditions), and The hip quick-clamp assembly 4 includes a fixing and clamping device 4.1 and a quick-clamping and positioning device 4.2, which fixes the dummy's hip or waist on the working platform 2; The waist clamping assembly 10 is provided in two pieces and is respectively placed on both sides of the dummy to support the dummy's hips on both sides during the calibration test to fix the dummy's hips; The thigh quick clamp assembly 9 includes a sensor fixing component 9.1 and a thigh bone connecting component 9.2, which are used to fix the hip and thigh and detect and collect the pelvic angle of the hip bending; The stretch-bending transmission assembly 5, in cooperation with the stretch-bending bracket 3, applies a pulling force to the fixed dummy to make it bend forward, so as to simulate the bending force of the dummy; The drawstring position adjustment assembly 6 adjusts the drawstring in the drawstring bending transmission assembly 5 to meet the calibration test requirements according to the different force direction requirements of different models of dummies in the waist bending calibration test; The boom assembly 7 applies the required back pulling force according to the different directions of the back pulling force required for different types of bending test dummies; The arc gear transmission assembly 11 is used to realize the bending and stretching of the dummy during the hip bending test.

[0022] like Figure 4 and 5As shown, the stretching and bending bracket 3 includes a back mounting bracket 3.1, a reinforcing plate 3.2, a steel rope 3.3, a steel rope support rod 3.4, a locking handle 3.5 and an equal height screw 3.6; wherein, the back mounting bracket 3 is connected to the back of the dummy through the equal height screw 3.6, the reinforcing plate 3.2 is welded to the back of the back mounting bracket 3.1, and the steel rope 3.3 passes through the steel rope support rod 3.4 and the two ends are connected to the two brackets of the back mounting bracket 3.1; the drawstring hook 5.12 of the stretching and bending transmission assembly 5 is hung on the steel rope 3.3, and the dummy is bent by the servo motor; the drawstring 7.6.3-sensor fixing plate 7.6.4 driven by the motor 7.6.1 in the boom assembly 7 is hung on the locking handle 3.5 and the equal height screw 3.6 fixed on the reinforcing plate 3.2, and is locked with the locking handle 3.5 to apply a pulling force from the back to the dummy.

[0023] like Figure 6 and 7 As shown, the fixing and fastening device 4.1 of the hip quick clamp assembly 4 includes a hip joint seat 4.1.1 and a fastening block 4.1.2. After the hip joint seat 4.1.1 and the fastening block 4.1.2 are installed, they are fixed to the hip interface of the dummy with screws; the quick clamping and positioning device 4.2 of the hip quick clamp assembly 4 includes a bottom plate 4.2.1, a base 4.2.2, a quick clamp handle 4.2.3, a connecting block 4.2.4, a push rod 4.2.5, an oblique fastening block 4.2.6, and a pressing guide block 4.2.7 , positioning guide block 4.2.8, special-shaped guide block 4.2.9 and T-shaped locking block 4.2.10, after connecting the T-shaped locking block 4.2.10 and the base plate 4.2.1, place the T-shaped locking block 4.2.10 in the slide groove on the working platform 2 and lock it; according to the different types of dummies tested, change the position of the T-shaped locking block 4.2.10 in the slide groove of the working platform 2 to change the position of the hip quick clamp assembly 4 on the working platform, so as to meet the specific needs of different types of dummies for waist and hip bending tests.

[0024] like Figure 8 and 9As shown, the stretch-bending transmission assembly 5 includes a servo motor 5.1, a speed reducer 5.2, an intermediate transmission component 5.3, a pulley 5.4, a drawstring 5.5, a drawstring connecting seat 5.6, a tension sensor 5.7, a drawstring hook 5.8 and a fixed base plate 5.9; the stretch-bending transmission assembly 5 is fixed to the platform frame 1 through the fixed base plate 5.9, one end of the drawstring 5.5 is fixed to the pulley 5.4, and the other end is fixed to the drawstring connecting seat 5.6 by bolts, one end of the tension sensor 5.7 is fixed to the drawstring connecting seat 5.6, and the other end is connected to the drawstring hook 5.8, and the drawstring hook 5.8 is hung on the steel rope 3.3 of the stretch-bending bracket 3; the power provided by the servo motor 5.1 is decelerated by the speed reducer 5.2 and then drives the pulley 5.4 to rotate through the intermediate transmission component 5.3, and the rotation of the pulley 5.4 drives the drawstring 5.5 to make the dummy's waist bend forward, and the tension sensor collects the tension applied to the dummy's waist when it bends.

[0025] like Fig.10 As shown, the drawstring position adjustment assembly 6 includes a DC motor 6.1, a worm gear reducer 6.2, a main shaft 6.3, a roller 6.4 and sliding components 6.5 symmetrically arranged on both sides of the roller; the DC motor 6.1 is connected to the worm gear reducer 6.2, and the drawstring 5.5 of the stretch-bending transmission assembly 5 passes under the roller 6.4; the power provided by the DC motor 6.1 is transmitted to the main shaft 6.3 through the worm gear reducer 6.2, and the rotation of the main shaft 6.3 drives the roller 6.4 to move back and forth through the sliding component 6.5, thereby changing the pulling direction of the drawstring 5.5 to meet the different requirements of the force direction in the waist bending calibration test of different models of dummies. In this embodiment, Fig.11 As shown, the drawstring position adjustment assembly 6 does not directly act on the dummy, but adjusts the drawstring 5.5 of the bending transmission assembly 5 to change the direction of the pulling force generated by the drawstring 5.5, that is, the force direction of the dummy.

[0026] like Fig.12 and 13 As shown, the boom assembly 7 includes a crane-boom assembly 7.1, a vertical arm 7.2, a base fixing plate 7.3, a screw lifting device 7.4, a screw lifting bottom plate 7.5, a motor-pull rope assembly 7.6, a second inclination sensor 7.7 and a level bracket assembly 7.8; The motor-pull rope assembly 7.2 comprises a second motor 7.6.1, a steel wheel 7.6.2, a pull rope 7.6.3, a sensor fixing plate 7.6.4 and a motor fixing seat 7.6.5. The second motor 7.6.1 is mounted on the screw lifting device 7.4 through the motor fixing seat 7.6.5. The steel wheel 7.6.2 is mounted on the second motor 7.6.1. One end of the pull rope 7.6.3 is connected to the steel wheel 7.6.2 and the other end is connected to the sensor fixing plate 7.6.4. The sensor fixing plate 7.6.4 is connected to the bending bracket 3. The back pulling force is applied to the dummy through the second motor 7.6.1, the steel wheel 7.6.2 and the pull rope 7.6.3. The height of the motor-pull rope assembly 7.2 is adjusted through the screw lifting device 7.4 to meet the back pulling force direction required by different models of bending test dummies. The level support assembly 7.8 is mounted on the vertical arm 7.2, and the second inclination sensor 7.7 is mounted on the sensor fixing plate 7.6.4 after being calibrated on the level support, so as to collect the bending angle of the dummy during the bending calibration test.

[0027] like Fig.14 and 15 As shown, the sensor fixing component 9.1 of the thigh quick clamp assembly 9 includes a connecting fixing seat 9.1.1 that can be quickly connected and fixed to the arc gear transmission assembly, an inclination sensor mounting component 9.1.2 and a torque sensor mounting component 9.1.3; the femur connecting component 9.2 of the thigh quick clamp assembly 9 includes a femur connecting block 9.2.1 and a quick lock component 9.2.2; wherein the quick lock component 9.2.2 of the thigh quick clamp assembly can conveniently and quickly connect and fix the sensor fixing component 9.1 and the femur connecting component 9.2 of the thigh quick clamp assembly 9; the inclination sensor mounting component 9.1.2 is equipped with an inclination sensor for collecting the pelvic angle of hip bending; the torque sensor mounting component 9.1.3 is equipped with a torque sensor for collecting the bending torque of hip bending.

[0028] like Fig.16 and 17As shown, the waist clamping assembly 10 includes a second T-shaped locking block 10.1, a locking plate 10.2, a column 10.3, a knob 10.4, an elliptical fixing column 10.5, an arc-shaped clamping block 10.6, a guide block 10.7 and a third locking handle 10.8; the two waist clamping assemblies 10 are respectively placed on both sides of the dummy to support the dummy's buttocks on both sides during the calibration test; the waist clamping assembly is fixed on the working platform 2 by the second T-shaped locking block 10.1, the locking plate 10.2 and the third locking handle 10.8; the column 10.3 is fixed On the locking plate 10.2, the elliptical fixing column 10.5 passes through the column 10.3 and the eccentric setting is fixed by the knob 10.4. During the test, the elliptical fixing column 10.5 is adjusted to provide certain support on both sides of the dummy's buttocks; the guide block 10.7 is fixed to the column 10.3 by the third locking handle 10.8, and the height can be freely adjusted; the arc-shaped pressing block 10.6 is fixed to the guide block 10.7 by the third locking handle 10.8. During the calibration test, the two arc-shaped pressing blocks 10.6 are extended into and contact the inner side of the buttocks to fix the dummy's buttocks.

[0029] like Fig.18 As shown, the circular arc gear transmission assembly 11 includes a guide rail support plate 11.1, a linear guide rail assembly 11.2, a base plate 11.3, a second servo motor 11.4, a second reducer 11.5 and a circular arc gear transmission assembly 11.6; Among them, the circular arc gear transmission assembly 11 is fixed on the platform frame 1 through the guide support plate 11.1, the bottom plate 11.3 is fixed on the linear guide assembly 11.2, and the circular arc gear transmission assembly 11 is moved left and right through the linear guide assembly 11.2 to meet the different tension positions required by different models of dummies; the power provided by the second servo motor 11.4 is transmitted to the circular arc gear transmission assembly 11.6 after being decelerated by the second reducer 11.5, so that the second servo motor 11.4 controls the upward and downward movement of the circular arc rack in the circular arc gear transmission assembly 11.6 at a specified speed, so that the circular arc gear transmission assembly 11 transmits power to the dummy through the thigh quick clamp assembly 9, and the upward and downward movement of the circular arc rack realizes the bending and stretching of the dummy during the hip bending test.

[0030] Embodiment 2: Further, based on Embodiment 1, this embodiment provides a dummy impact test method, including a waist test method and a hip test method. The waist test method specifically includes: fixing the hip joint seat 4.1.1 and the clamping block 4.1.2 of the fixing and clamping device 4.1 of the hip quick clamp assembly 4, placing the dummy on the working platform 2 by the crane in the boom assembly 7, installing the stretching and bending bracket 3 on the back of the waist bending dummy, fixing the pull rope-sensor fixing plate 7.6.4 driven by the second motor 7.6.1 in the boom assembly 7 on the stretching and bending bracket 3, clamping the dummy by the quick clamping and positioning device 4.2 of the hip quick clamp assembly 4 with the fixing and clamping device 4.1, hooking the pull belt 5.9 in the stretching and bending transmission assembly 5 on the steel rope 3.3 in the stretching and bending bracket 3, and starting the test program to perform the dummy waist bending test calibration test; That is, in this embodiment, the calibration of the dummy's waist bending can be described as: (1) Select a bending bracket that matches the dummy to be tested and fix it on the back of the dummy to be tested; (2) Select a fixing and fastening device that matches the dummy to be tested and install it on the hip of the dummy to be tested; (3) Place the dummy to be tested on the hip quick clamp assembly at the position where it fits into the fixed embedding device through the crane arm assembly, and secure it with the quick lock handle; (4) Use the quick-lock handle to fix the sensor fixing plate of the inclination sensor on the bending bracket, and at the same time control the screw lifting assembly through the control system to adjust the back angle of the dummy to be tested; (5) Hang the hook connected to the drawstring and the tension sensor in the drawstring transmission assembly on the steel rope of the drawstring bracket; at the same time, control the drawstring position adjustment assembly through the control system to adjust the angle of the drawstring; (5) Plug the Lemo 1B 7-pin connectors of the inclination sensor and the tension sensor into the data acquisition board, and start the dummy lumbar bending calibration test according to the dummy lumbar bending calibration requirements through computer operation.

[0031] The hip test method specifically includes: fixing the hip joint seat 4.1.1 and the clamping block 4.1.2 of the fixing and clamping device 4.1 of the hip quick clamp assembly 4, placing the dummy on the working platform 2 by the crane in the boom assembly 7, fixing the dummy's hips by clamping the fast clamping and positioning device 4.2 of the hip quick clamp assembly 4 with the fixing and clamping device 4.1, and simultaneously clamping the dummy's hips with the arc-shaped clamping block 10.6 of the waist clamping assembly 10; fixing the thigh quick clamp assembly 9 and the thigh bone connection assembly 9.2 installed on the arc gear transmission assembly 11, and starting the test presentation to perform the dummy hip bending test calibration test; That is, in this embodiment, the dummy hip bending calibration can be described as: (1) Select a femur connection block that matches the dummy to be tested and fix it to the femur of the dummy to be tested; (2) Select a fixing and fastening device that matches the dummy to be tested and install it on the hip of the dummy to be tested; (3) Place the dummy to be tested on the quick clamping and positioning assembly at the position where it fits into the fixed embedding device through the boom assembly, and secure it with the quick lock handle; (4) Use the quick handle of the waist clamping assembly to fix the arc-shaped clamping block on the hips of the dummy to be tested; (5) Connect and fix the thigh quick clamping assembly fixed on the circular arc gear transmission assembly through the quick handle and the thigh bone connecting block; (6) Plug the Lemo 1B 7-pin connector of the inclination sensor and torque sensor into the data acquisition board, and start the dummy torso bending calibration test according to the dummy torso bending calibration requirements through computer operation.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. Dummy waist and hip bending test system, characterized in that: It includes a platform frame, a working platform and a dummy with a waist and hips, and The hip quick-clamp assembly includes a fixing and clamping device and a quick-clamping and positioning device to fix the dummy's hips or waist on the work platform; There are two waist clamping assemblies, which are respectively placed on both sides of the dummy to support the dummy's hips on both sides during the calibration test to fix the dummy's hips; The thigh quick clamp assembly includes a sensor fixing component and a thigh bone connecting component, which is used to fix the hip and thigh and detect the pelvic angle of the hip bending. The tension-bending transmission assembly, in cooperation with the tension-bending bracket, applies a pulling force to the fixed dummy to make it bend forward, so as to simulate the bending force of the dummy; The drawstring position adjustment assembly adjusts the drawstring in the drawstring bending transmission assembly to meet the calibration test requirements according to the different force direction requirements of different models of dummies in the waist bending calibration test; The arm assembly applies the required back pulling force according to the different back pulling force directions required for different types of bending test dummies; The circular arc gear transmission assembly is used to achieve the bending and stretching of the dummy during the hip bending test.

2. The dummy waist and hip flexion test system according to claim 1, characterized in that: The fixing and clamping device of the hip quick clamp assembly includes a hip joint seat and a clamping block. After the hip joint seat and the clamping block are installed, they are fixed at the hip interface of the dummy with screws; the quick clamping and positioning device of the hip quick clamp assembly includes a base plate, a base, a quick clamping handle, a connecting block, a push rod, an oblique clamping block, a clamping guide block, a positioning guide block, a special-shaped guide block and a T-shaped locking block. After the T-shaped locking block is connected to the base plate, the T-shaped locking block is placed in the slide groove on the working platform and locked and fixed; according to the different models of dummies tested, the position of the T-shaped locking block in the slide groove of the working platform is changed to change the position of the hip quick clamp assembly on the working platform.

3. The dummy waist and hip flexion test system according to claim 1, characterized in that: The sensor fixing component of the thigh quick clamp assembly includes a rack connecting seat, a slider seat, a slider, a torque sensor, a sensor connecting seat, an inclination sensor, an inclination sensor mounting seat and a quick clamp screw; the femoral bone connecting component of the thigh quick clamp assembly includes a femoral bone connecting block, a sensor pressing block, a second locking handle and a bolt; wherein the slider is freely slidably mounted on the slider seat, one end of the first sensor connecting seat is connected to the slider through a bolt, and the other end is connected to the torque sensor, one end of the second sensor connecting seat is connected to the torque sensor, and the other end is fixed to the bolt of the femoral bone connecting piece and locked by the second locking handle; the torque sensor is used to collect the bending torque of the hip bending, the inclination sensor mounting seat is fixed to the first sensor connecting seat, and the inclination sensor installed on the inclination sensor mounting seat is used to collect the pelvic angle of the hip bending.

4. The dummy waist and hip flexion test system according to claim 1, characterized in that: The waist clamping assembly includes a second T-shaped locking block, a locking plate, a column, a knob, an elliptical fixed column, an arc-shaped clamping block, a guide block and a third locking handle; the two waist clamping assemblies are respectively placed on both sides of the dummy to support the dummy's buttocks on both sides during the calibration test; the waist clamping assembly is fixed to the work platform by the second T-shaped locking block, the locking plate and the third locking handle; the column is fixed on the locking plate, the elliptical fixed column passes through the column and the eccentric setting is fixed by the knob, and during the test, the elliptical fixed column is adjusted to provide certain support on both sides of the dummy's buttocks; the guide block is fixed to the column by the third locking handle, and the height can be freely adjusted; the arc-shaped clamping block is fixed to the guide block by the third locking handle, and during the calibration test, the two arc-shaped clamping blocks are extended into and contact the inner side of the buttocks to fix the dummy's buttocks.

5. The dummy waist and hip flexion test system according to claim 1, characterized in that: The stretching and bending bracket includes a back mounting bracket, a reinforcement plate, a steel rope, a steel rope support rod, a locking handle and equal-height screws; wherein, the back mounting bracket is connected to the back of the dummy through the equal-height screws, the reinforcement plate is welded to the back of the back mounting bracket, and the steel rope passes through the steel rope support rod and is connected to the two brackets of the back mounting bracket at both ends; the drawstring hook of the stretching and bending transmission assembly is hung on the steel rope, and the dummy is bent by the servo motor; the drawstring-sensor fixing plate driven by the motor in the boom assembly is hung on the locking handle and the equal-height screws fixed on the reinforcement plate, and is locked with the locking handle to apply a pulling force from the back to the dummy.

6. The dummy waist and hip flexion test system according to claim 1, characterized in that: The stretch-bending transmission assembly includes a servo motor, a reducer, an intermediate transmission component, a pulley, a drawstring, a drawstring connecting seat, a tension sensor, a drawstring hook and a fixed base plate; the stretch-bending transmission assembly is fixed to the platform frame through the fixed base plate, one end of the drawstring is fixed to the pulley, and the other end is fixed to the drawstring connecting seat by bolts, one end of the tension sensor is fixed to the drawstring connecting seat, and the other end is connected to the drawstring hook, and the drawstring hook is hung on the steel rope of the stretch-bending bracket; the power provided by the servo motor is decelerated by the reducer and then drives the pulley to rotate through the intermediate transmission component. The rotation of the pulley drives the drawstring to make the dummy's waist bend forward, and the tension sensor collects the tension applied to the dummy's waist when it bends.

7. The dummy waist and hip flexion test system according to claim 1, characterized in that: The drawstring position adjustment assembly includes a DC motor, a worm gear reducer, a main shaft, a roller and sliding components symmetrically distributed on both sides of the roller; the DC motor is connected to the worm gear reducer, and the drawstring of the stretch-bending transmission assembly passes around from under the roller; the power provided by the DC motor is transmitted to the main shaft through the worm gear reducer, and the rotation of the main shaft drives the roller to move back and forth through the sliding component, thereby changing the tension direction of the drawstring to meet the different force direction requirements for different models of dummies in waist bending calibration tests.

8. The dummy waist and hip flexion test system according to claim 1, characterized in that: The boom assembly includes a crane-boom assembly, a vertical arm, a base fixing plate, a screw lifting device, a screw lifting bottom plate, a motor-pull rope assembly, a second inclination sensor and a level bracket assembly; The motor-pull rope assembly includes a second motor, a steel wheel, a pull rope, a sensor fixing plate and a motor fixing seat. The second motor is installed on the screw lifting device through the motor fixing seat. The steel wheel is installed on the motor. One end of the pull rope is connected to the steel wheel and the other end is connected to the sensor fixing plate. The sensor fixing plate is connected to the bending bracket. The second motor, the steel wheel and the pull rope are used to apply a back pulling force to the dummy. The height of the motor-pull rope assembly is adjusted through the screw lifting device to meet the back pulling force direction required by different models of bending test dummies. The level bracket assembly is installed on the vertical arm, and the second inclination sensor is installed on the sensor fixing plate after being calibrated on the level bracket, so as to collect the bending angle of the dummy during the bending calibration test.

9. The dummy waist and hip flexion test system according to claim 1, characterized in that: The arc gear transmission assembly includes a guide rail support plate, a linear guide rail assembly, a base plate, a second servo motor, a second reducer and an arc gear transmission assembly; wherein the arc gear transmission assembly is fixed to the platform frame by the guide rail support plate, the base plate is fixed to the linear guide rail assembly, and the arc gear transmission assembly is moved left and right by the linear guide rail assembly to meet the different tension positions required by different models of dummies; the power provided by the second servo motor is transmitted to the arc gear transmission assembly after being decelerated by the second reducer, so that the second servo motor controls the upward and downward movement of the arc rack at a specified speed, so that the arc gear transmission assembly transmits power to the dummy through the thigh quick clamp assembly, and the upward and downward movement of the arc rack realizes the bending and stretching of the dummy during the hip bending test.

10. A dummy waist and hip bending test method, characterized in that: Including waist test method and hip test method, The waist test method specifically includes: fixing the hip joint seat and the clamping block of the fixing and clamping device of the hip quick clamp assembly, placing the dummy on the work platform by the crane in the boom assembly, installing the bending bracket on the back of the waist bending dummy, fixing the pull rope-sensor fixing plate driven by the motor in the boom assembly on the bending bracket, clamping the dummy by the fast clamping and positioning device of the hip quick clamp assembly, hanging the drawstring hook in the bending transmission assembly on the steel rope in the bending bracket, and starting the test program to perform the dummy waist bending test calibration test; The hip test method specifically includes: fixing the hip joint seat and the clamping block of the fixing and clamping device of the hip quick clamp assembly, placing the dummy on the work platform by the crane in the boom assembly, fixing the dummy's hips by clamping the fast clamping and positioning device of the hip quick clamp assembly, and simultaneously clamping the dummy's hips with the arc-shaped clamping block of the waist clamping assembly; fixing the thigh quick clamp assembly and the thigh bone connection assembly installed on the arc gear transmission assembly. Start the test presentation and conduct the dummy hip bending test calibration test.

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