Dummy waist-hip bending test system and method

Abstract

The present invention discloses a dummy waist and hip bending test system, which includes a platform frame, a working platform, a dummy with a waist and hips, a hip quick clamp assembly, a waist pressing assembly, a thigh quick clamp assembly, including a sensor fixing component and a thigh bone connecting component, for fixing the hip and thigh and detecting and collecting the pelvic angle of hip bending; a bending transmission assembly, which, in cooperation with a bending support, applies a pulling force to the fixed dummy to make it bend forward, so as to realize the simulation of the bending force of the dummy; a pulling belt position adjustment assembly, which adjusts the pulling belt in the bending transmission assembly according to the different requirements of the force application direction for different models of dummies in the waist bending calibration test to meet the needs of the calibration test; a jib combination assembly, which applies the required pulling force from behind according to the different required pulling force directions from behind for different models of bending test dummies; and an arc gear transmission assembly, which is used to realize the bending and stretching of the dummy during the hip bending test.

Description

Technical Field

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

[0002] In the field of automotive safety performance testing, for the sake of human safety, both domestic and international research uses humanoid test devices (dummy) for automotive safety crash tests as testing tools. Various sensors embedded in various parts of the dummy generate corresponding response parameters. This data reflects the extent of human injury during a crash, thereby assessing the vehicle's safety performance and providing a reference for researchers to improve vehicle body structures and optimize restraint systems. To obtain accurate and reliable data in automotive crash tests, the dummy must exhibit good biofidelity. To verify the dummy's biofidelity, calibration and testing tests are often required. However, current calibration equipment for dummy waist and hip flexion tests lacks integration, has limited functionality, and features cumbersome and inconvenient dummy mounting methods. This results in slow calibration testing and fails to meet the increasing demand for convenient dummy waist and hip calibration testing.

[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 that can simultaneously meet the calibration test and detection test requirements of the dummy waist and hip.

[0005] First, the present invention provides a dummy waist and hip flexion test system, which includes a platform frame, a working platform and a dummy with a waist and hips, and

[0006] The hip quick-clamp assembly, including a fixing and fastening device and a quick-clamping and positioning device, secures the dummy's hips or waist to the work platform;

[0007] There are two waist clamping assemblies, one on each side of the dummy, to support the dummy's hips on both sides during calibration testing to secure the dummy's hips.

[0008] The thigh quick clamp assembly, including a sensor fixing component and a femoral connection component, is used to fix the hip and thigh and detect the pelvic angle of the hip bending;

[0009] The bending transmission assembly, in cooperation with the bending bracket, applies a tensile force to the fixed dummy to make it bend forward, thereby simulating the bending force of the dummy;

[0010] The drawstring position adjustment assembly adjusts the drawstring in the draw-bending transmission assembly according to the different requirements of the force direction in the waist bending calibration test for dummies of different models to meet the needs of the calibration test;

[0011] The boom combination assembly applies the required rear pulling force according to the different rear pulling force directions required by the bending test dummies of different models;

[0012] The arc gear transmission assembly is used to realize the bending and stretching of the dummy during the hip bending test.

[0013] The fixed clamping device of the hip quick-clamping assembly includes a hip joint seat and a clamping block. After installing the hip joint seat and the clamping block, it is fixed to the hip interface of the dummy with screws; the quick clamping and positioning device of the hip quick-clamping assembly includes a bottom plate, a base, a quick-clamping handle, a connecting block, a push rod, an inclined clamping block, a pressing guide block, a positioning guide block, a special-shaped guide block and a T-shaped locking block. After connecting the T-shaped locking block to the bottom plate, place the T-shaped locking block in the chute on the working platform and lock it; change the position of the T-shaped locking block in the chute of the working platform according to the different models of dummies tested to change the position of the hip quick-clamping assembly on the working platform.

[0014] The sensor fixing component of the thigh quick-clamping 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-clamping screw; the thigh bone connecting component of the thigh quick-clamping assembly includes a thigh bone connecting block, a sensor pressing block, a second locking handle and a bolt; among them, the slider is freely slidably installed on the slider seat, one end of the first sensor connecting seat is connected to the slider by 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 thigh bone connecting piece and locked by the second locking handle; the torque sensor is used to collect the bending moment 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.

[0015] The waist pressing assembly includes a second T-shaped locking block, a locking plate, a column, a knob, an elliptical fixing column, an arc-shaped pressing block, a guiding block and a third locking handle; two waist pressing assemblies are respectively placed on both sides of the dummy to support the dummy's buttocks on both sides during calibration testing; the waist pressing assembly is fixed on the working platform through the second T-shaped locking block, the locking plate and the third locking handle; the column is fixed on the locking plate, the elliptical fixing column passes through the column and is eccentrically arranged and fixed by the knob, and during testing, a certain support is given to both sides of the dummy's buttocks by adjusting the elliptical fixing column; the guiding block is fixed on the column through the third locking handle and its height can be freely adjusted; the arc-shaped pressing block is fixed on the guiding block through the third locking handle, and during calibration testing, the two arc-shaped pressing blocks extend into and contact the inner position of the buttocks to fix the dummy's buttocks.

[0016] The bending and pulling support includes a back mounting bracket, a reinforcing plate, a steel cable, a steel cable support rod, a locking handle and an equal-height screw; among them, the back mounting bracket is connected to the dummy's back through the equal-height screw, the reinforcing plate is welded to the back of the back mounting bracket, and the steel cable passes through the steel cable support rod and its two ends are connected to the two brackets of the back mounting bracket; the pulling belt hook of the bending and pulling transmission assembly is hung on the steel cable, and the dummy is bent by driving with a servo motor; the pulling rope-sensor fixing plate driven by the motor in the boom combination assembly is hung on the locking handle and the equal-height screw fixed on the reinforcing plate and locked with the locking handle to apply a pulling force behind the dummy.

[0017] The bending and pulling transmission assembly includes a servo motor, a reducer, an intermediate transmission component, a belt pulley, a pulling belt, a pulling belt connecting seat, a tension sensor, a pulling belt hook and a fixed bottom plate; the bending and pulling transmission assembly is fixed on the platform frame through the fixed bottom plate, one end of the pulling belt is fixed on the belt pulley and the other end is fixed on the pulling belt connecting seat through a bolt, one end of the tension sensor is fixed on the pulling belt connecting seat and the other end is connected to the pulling belt hook, and the pulling belt hook is hung on the steel cable of the bending and pulling support; the power provided by the servo motor is decelerated by the reducer and then drives the belt pulley to rotate through the intermediate transmission component, the rotation of the belt pulley drives the pulling belt to bend the dummy's waist forward, and the tension sensor collects the tension received when the dummy's waist bends.

[0018] The pulling belt position adjustment assembly includes a DC motor, a worm and 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 and worm gear reducer, and the pulling belt of the bending and pulling transmission assembly bypasses below the roller; the power provided by the DC motor is transmitted to the main shaft through the worm and worm gear reducer, and the rotation of the main shaft drives the roller to move back and forth through the sliding components, thereby changing the pulling force direction of the pulling belt to meet the different requirements for the force direction during the waist bending calibration test of dummies of different models.

[0019] The boom assembly includes a crane-boom combination, a vertical boom, a base fixing plate, a screw-lifting device, a screw-lifting bottom plate, a motor-pull rope assembly, a second inclination sensor, and a spirit level bracket assembly;

[0020] Among them, 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. A backward pulling force is applied to the dummy through the motor, the steel wheel, and the pull rope. The height of the motor-pull rope assembly is adjusted through the screw-lifting device to meet the required backward pulling force directions of bending test dummies of different models;

[0021] The spirit level bracket assembly is installed on the vertical boom. After being calibrated on the spirit level bracket, the second inclination sensor is installed on the sensor fixing plate and is used to collect the bending angle of the dummy during the bending calibration test.

[0022] The arc gear transmission assembly includes a guide rail support plate, a linear guide rail assembly, a bottom plate, a second servo motor, a second reducer, and an arc gear transmission component. Among them, the arc gear transmission assembly is fixed on the platform frame through the guide rail support plate. The bottom plate is fixed on the linear guide rail assembly, and the left and right movement of the arc gear transmission assembly is realized through the linear guide rail assembly to meet the different requirements of the pulling positions of dummies of different models. The power provided by the second servo motor is transmitted to the arc gear transmission component after being decelerated by the second reducer, so as to realize the upward and downward movement of the arc rack by the second servo motor at a specified speed. The arc gear transmission assembly transmits the power to the dummy through the thigh quick-clamping assembly. The upward and downward movement of the arc rack realizes the bending and stretching of the dummy during the hip bending test.

[0023] Secondly, the present invention also provides a dummy impact test method, including a waist test method and a hip test method,

[0024] Among them, 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-clamping assembly, placing the dummy on the working platform through 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, fixing the dummy by clamping and fixing the fixing and clamping device through the quick clamping and positioning device of the hip quick-clamping assembly, hanging the pull belt hook in the bending transmission assembly on the steel rope in the bending bracket, and starting the test program to conduct the dummy waist bending test calibration test;

[0025] The specific steps of the hip test method are as follows: fix the hip joint seat and the clamping block of the fixing and clamping device of the hip quick-clamping assembly, place the dummy on the working platform through the crane in the jib combination assembly, fix the dummy's hip by clamping and positioning the fixing and clamping device through the quick clamping and positioning device of the hip quick-clamping assembly, and at the same time press the arc-shaped pressing block of the waist pressing assembly against the dummy's hip; after fixing the thigh quick-clamping assembly and the thigh bone connection assembly installed on the circular arc gear transmission assembly, start the test to conduct the calibration test of the dummy's hip bending test.

[0026] The technical solution of the present invention has the following advantages:

[0027] The test system provided by the present invention can simultaneously meet the requirements of the calibration test and the detection test for the waist and hip of the dummy, and can be used for the bending calibration test of the waist and hip of various different models of dummies; the test system has a higher integration level, a more beautiful appearance, and is convenient to operate. The test system and method can realize automatic operation, reduce human intervention, and ensure the reliability of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of the dummy waist-hip bending test system described in the present invention;

[0030] Figure 2 It is a schematic structural diagram of the dummy waist bending test described in the present invention;

[0031] Figure 3 It is a schematic structural diagram of the dummy hip bending test described in the present invention;

[0032] Figure 4 It is a schematic structural diagram of the bending support described in the present invention;

[0033] Figure 5 It is a schematic cooperation diagram of the bending support described in the present invention;

[0034] Figure 6 It is a schematic structural diagram of the hip quick-clamping assembly described in the present invention;

[0035] Figure 7 It is a schematic structural diagram of the hip quick-clamping assembly described in the present invention;

[0036] Figure 8 It is a schematic structural diagram of the bending and pulling transmission assembly according to the present invention;

[0037] Figure 9 It is a schematic mating diagram of the bending and pulling transmission assembly according to the present invention;

[0038] Figure 10 It is a schematic structural diagram of the pulling belt position adjustment assembly according to the present invention;

[0039] Figure 11 It is a schematic mating diagram of the pulling belt position adjustment assembly according to the present invention;

[0040] Figure 12 It is a schematic structural diagram of the boom combination assembly according to the present invention;

[0041] Figure 13 It is a schematic mating diagram of the boom combination assembly according to the present invention;

[0042] Figure 14 It is a schematic structural diagram of the thigh quick-clamping assembly according to the present invention;

[0043] Figure 15 It is a schematic mating diagram of the thigh quick-clamping assembly according to the present invention;

[0044] Figure 16 It is a schematic structural diagram of the waist pressing assembly according to the present invention;

[0045] Figure 17 It is a schematic structural diagram of the waist pressing assembly according to the present invention;

[0046] Figure 18 It is a schematic structural diagram of the arc gear transmission assembly according to the present invention.

[0047] Reference numerals: 1 - platform frame, 2 - working platform, 3 - bending and pulling bracket, 4 - hip quick-clamping assembly, 5 - bending and pulling transmission assembly, 6 - pulling belt position adjustment assembly, 7 - boom combination assembly, 8 - waist bending dummy, 9 - thigh quick-clamping assembly, 10 - waist pressing assembly, 11 - arc gear transmission assembly, 12 - hip bending dummy;

[0048] 3.1 - back mounting bracket, 3.2 - reinforcing plate, 3.3 - steel rope, 3.4 - steel rope support rod, 3.5 - locking handle, 3.6 - equal-height screw;

[0049] 4.1 - Fixed clamping device, 4.2 - Quick clamping and positioning device, 4.1.1 - Hip joint seat, 4.1.2 - Clamping block, 4.2.1 - First bottom plate, 4.2.2 - Base, 4.2.3 - Quick clamp handle, 4.2.4 - Connecting block, 4.2.5 - Push rod, 4.2.6 - Inclined 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;

[0050] 5.1 - Servo motor, 5.2 - Reducer, 5.3 - Intermediate transmission component, 5.4 - Belt pulley, 5.5 - Pulling belt, 5.6 - Pulling belt connecting seat, 5.7 - Tension sensor, 5.8 - Pulling belt hook, 5.9 - Fixed bottom plate;

[0051] 6.1 - DC motor, 6.2 - Worm and worm gear reducer, 6.3 - Spindle, 6.4 - Roller, 6.5 - Sliding component;

[0052] 7.1 - Crane - boom combination, 7.2 - Upright arm, 7.3 - Base fixing plate, 7.4 - Screw jacking device, 7.5 - Screw jacking bottom plate, 7.6 - Motor - cable assembly, 7.7 - Second inclination sensor, 7.8 - Leveling bracket assembly, 7.6.1 - Second motor, 7.6.2 - Steel wheel, 7.6.3 - Cable, 7.6.4 - Sensor fixing plate, 7.6.5 - Motor fixing seat;

[0053] 9.1 - Sensor fixing component, 9.2 - Femur connecting component, 9.1.1 - Connecting fixing seat, 9.1.2 - Inclination sensor mounting component, 9.1.3 - Torque sensor mounting component, 9.2.1 - Femur connecting block, 9.2.2 - Quick lock component;

[0054] 10.1 - Second T-shaped locking block, 10.2 - Locking plate, 10.3 - Column, 10.4 - Knob, 10.5 - Oval fixing column, 10.6 - Arc-shaped pressing block, 10.7 - Guide block, 10.8 - Third locking handle;

[0055] 11.1 - Guide rail support plate, 11.2 - Linear guide rail assembly, 11.3 - Second bottom plate, 11.4 - Second servo motor, 11.5 - Second reducer, 11.6 - Circular arc gear transmission component. Detailed implementation mode

[0056] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. The following content is only an example and explanation of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claim book, they shall fall within the protection scope of the present invention. The experimental reagents, materials, etc. used in the following embodiments can be obtained from commercial channels without special instructions.

[0057] Example 1: As Figure 1 、 2 and Figure 3 show, this embodiment provides a dummy waist-hip bending test system.

[0058] First, the present invention provides a dummy waist-hip bending test system, which includes a platform frame 1, a working platform 2, and a dummy with a waist and hips (which can be divided into a waist-bending dummy 8 and a hip-bending dummy 12, distinguished according to different test situations), and

[0059] a hip quick-clamping assembly 4, including a fixed clamping device 4.1 and a quick clamping and positioning device 4.2, to fix the dummy's hip or waist on the working platform 2;

[0060] a waist pressing assembly 10, provided in two, respectively placed on both sides of the dummy to support the dummy's hips on both sides during calibration testing to fix the dummy's hips;

[0061] a thigh quick-clamping assembly 9, including a sensor fixing component 9.1 and a thigh bone connecting component 9.2, used to fix the hip and thigh and detect and collect the pelvic angle of hip bending;

[0062] a pulling and bending transmission assembly 5, which, in cooperation with the pulling and bending bracket 3, applies a pulling force to the fixed dummy to make it bend forward to simulate the bending force on the dummy;

[0063] a pulling belt position adjustment assembly 6, which adjusts the pulling belt in the pulling and bending transmission assembly 5 according to the different requirements of the force application direction for different models of dummies during waist bending calibration testing to meet the needs of calibration testing;

[0064] a boom combination assembly 7, which applies the required pulling force from behind according to the different required pulling force directions from behind for different models of bending test dummies;

[0065] an arc gear transmission assembly 11, used to achieve the bending and stretching of the dummy during hip bending testing.

[0066] As Figure 4 and 5As shown in the figure, the stretch-bending bracket 3 includes a back mounting bracket 3.1, a reinforcing plate 3.2, a steel cable 3.3, a steel cable support rod 3.4, a locking handle 3.5, and an equal-height screw 3.6. Among them, 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. The steel cable 3.3 passes through the steel cable support rod 3.4 and is connected to the two brackets of the back mounting bracket 3.1 at both ends. The pull belt hook 5.12 of the stretch-bending transmission assembly 5 is hung on the steel cable 3.3, and the dummy is bent by driving with a servo motor. The pull rope 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 locked with the locking handle 3.5 to apply a pulling force to the back of the dummy.

[0067] As Figure 6 and 7 As shown in the figure, the fixed clamping device 4.1 of the hip quick-clamping assembly 4 includes a hip joint seat 4.1.1 and a clamping block 4.1.2. After installing the hip joint seat 4.1.1 and the clamping block 4.1.2, they are fixed to the hip interface of the dummy with screws. The quick clamping and positioning device 4.2 of the hip quick-clamping assembly 4 includes a first bottom plate 4.2.1, a base 4.2.2, a quick-clamping handle 4.2.3, a connecting block 4.2.4, a push rod 4.2.5, an inclined clamping block 4.2.6, a pressing guide block 4.2.7, a positioning guide block 4.2.8, a special-shaped guide block 4.2.9, and a T-shaped locking block 4.2.10. After connecting the T-shaped locking block 4.2.10 and the first bottom plate 4.2.1, the T-shaped locking block 4.2.10 is placed in the chute on the working platform 2 and locked. The position of the T-shaped locking block 4.2.10 in the chute of the working platform 2 is changed according to different models of dummies tested to change the position of the hip quick-clamping assembly 4 on the working platform, so as to meet the specific requirements of waist-hip bending tests for different models of dummies.

[0068] As Figure 8 and 9As shown in the figure, the tension-bending transmission assembly 5 includes a servo motor 5.1, a speed reducer 5.2, an intermediate transmission assembly 5.3, a belt pulley 5.4, a pulling belt 5.5, a pulling belt connecting seat 5.6, a tension sensor 5.7, a pulling belt hook 5.8, and a fixed bottom plate 5.9. The tension-bending transmission assembly 5 is fixed on the platform frame 1 through the fixed bottom plate 5.9. One end of the pulling belt 5.5 is fixed on the belt pulley 5.4, and the other end is fixed on the pulling belt connecting seat 5.6 through bolts. One end of the tension sensor 5.7 is fixed on the pulling belt connecting seat 5.6, and the other end is connected to the pulling belt hook 5.8. The pulling belt hook 5.8 is hung on the steel cable 3.3 of the tension-bending support 3. The power provided by the servo motor 5.1 is decelerated by the speed reducer 5.2 and then drives the belt pulley 5.4 to rotate through the intermediate transmission assembly 5.3. The rotation of the belt pulley 5.4 drives the pulling belt 5.5 to bend the waist of the dummy forward, and the tension sensor collects the tension received when the waist of the dummy bends.

[0069] As Figure 10 shown in the figure, the pulling belt position adjustment assembly 6 includes a DC motor 6.1, a worm and worm gear speed reducer 6.2, a main shaft 6.3, a roller 6.4, and sliding assemblies 6.5 symmetrically distributed on both sides of the roller. The DC motor 6.1 is connected to the worm and worm gear speed reducer 6.2, and the pulling belt 5.5 of the tension-bending transmission assembly 5 bypasses below the roller 6.4. The power provided by the DC motor 6.1 is transmitted to the main shaft 6.3 through the worm and worm gear speed reducer 6.2. The rotation of the main shaft 6.3 drives the roller 6.4 to move back and forth through the sliding assemblies 6.5, thereby changing the pulling direction of the pulling belt 5.5 to meet the different requirements for the force direction in the waist bending calibration test of dummies of different models. In this embodiment, as Figure 11 shown in the figure, the pulling belt position adjustment assembly 6 does not directly act on the dummy. It adjusts the pulling belt 5.5 of the tension-bending transmission assembly 5, and then changes the direction of the pulling force generated by the pulling belt 5.5, that is, the force direction of the dummy.

[0070] As Figure 12 and 13 shown in the figure, the boom combination assembly 7 includes a crane-boom combination 7.1, a vertical boom 7.2, a base fixing plate 7.3, a screw jacking device 7.4, a screw jacking bottom plate 7.5, a motor-pulling rope assembly 7.6, a second inclination sensor 7.7, and a spirit level bracket assembly 7.8.

[0071] Among them, the motor-cable assembly 7.6 includes a second motor 7.6.1, a steel wheel 7.6.2, a cable 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 installed on the screw rod lifting device 7.4 through the motor fixing seat 7.6.5. The steel wheel 7.6.2 is installed on the second motor 7.6.1. One end of the cable 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. A backward pulling force is applied to the dummy through the second motor 7.6.1, the steel wheel 7.6.2 and the cable 7.6.3. And the height of the motor-cable assembly 7.2 is adjusted through the screw rod lifting device 7.4 to meet the required direction of the backward pulling force for bending test dummies of different models.

[0072] The spirit level bracket assembly 7.8 is installed on the vertical arm 7.2. The second inclination sensor 7.7 is installed on the sensor fixing plate 7.6.4 after being calibrated on the spirit level bracket, and is used to collect the bending angle of the dummy during the bending calibration test.

[0073] As Figure 14 and 15 As shown, the sensor fixing assembly 9.1 of the thigh quick clamp assembly 9 includes a connection fixing seat 9.1.1 that can be quickly connected and fixed to the circular arc gear transmission assembly, an inclination sensor mounting assembly 9.1.2 and a torque sensor mounting assembly 9.1.3. The thigh bone connection assembly 9.2 of the thigh quick clamp assembly 9 includes a thigh bone connection block 9.2.1 and a quick lock assembly 9.2.2. Among them, the quick lock assembly 9.2.2 of the thigh quick clamp assembly can conveniently and quickly connect and fix the sensor fixing assembly 9.1 and the thigh bone connection assembly 9.2 of the thigh quick clamp assembly 9. The inclination sensor mounting assembly 9.1.2 is equipped with an inclination sensor for collecting the pelvic angle of hip bending. The torque sensor mounting assembly 9.1.3 is equipped with a torque sensor for collecting the bending moment of hip bending.

[0074] As Figure 16 and 17As shown, the waist pressing 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 pressing block 10.6, a guiding block 10.7, and a third locking handle 10.8. Two waist pressing assemblies 10 are respectively placed on both sides of the dummy to support the dummy's buttocks on both sides during calibration testing. The waist pressing 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 is eccentrically arranged and fixed by the knob 10.4. During testing, a certain support is given to both sides of the dummy's buttocks by adjusting the elliptical fixing column 10.5. The guiding block 10.7 is fixed on the column 10.3 by the third locking handle 10.8, and its height can be freely adjusted. The arc-shaped pressing block 10.6 is fixed on the guiding block 10.7 by the third locking handle 10.8. During calibration testing, the two arc-shaped pressing blocks 10.6 extend into and contact the inner side position of the buttocks to fix the dummy's buttocks.

[0075] As Figure 18 shown, the arc gear transmission assembly 11 includes a guide rail support plate 1, a linear guide rail assembly 11.2, a second bottom plate 11.3, a second servo motor 11.4, a second reducer 11.5, and an arc gear transmission component 11.6.

[0076] Among them, the arc gear transmission assembly 11 is fixed on the platform frame 1 by the guide rail support plate 11.1. The second bottom plate 11.3 is fixed on the linear guide rail assembly 11.2, and the arc gear transmission assembly 11 is moved left and right through the linear guide rail assembly 11.2 to meet the different requirements of the pulling positions for dummies of different models. The power provided by the second servo motor 11.4 is transmitted to the arc gear transmission component 11.6 after being decelerated by the second reducer 11.5, so as to control the upward and downward movement of the arc rack in the arc gear transmission component 11.6 at a specified speed by the second servo motor 11.4, enabling the arc gear transmission assembly 11 to transmit the power to the dummy through the thigh quick-clamping assembly 9. The upward and downward movement of the arc rack realizes the bending and stretching of the dummy during hip bending testing.

[0077] Embodiment 2: Further, on the basis of Embodiment 1, this embodiment provides a dummy impact testing method, including a waist testing method and a hip testing method.

[0078] Among them, the specific steps of the waist testing method are as follows: fix the hip joint seat 4.1.1 and the clamping block 4.1.2 of the fixed clamping device 4.1 of the hip quick-clamping assembly 4, place the dummy on the working platform 2 by the crane in the boom assembly 7, install the bending bracket 3 on the back of the waist-bending dummy, fix the rope-sensor fixing plate 7.6.4 driven by the second motor 7.6.1 in the boom assembly 7 on the bending bracket 3, fix the dummy by clamping and fixing the fixed clamping device 4.1 through the quick clamping and positioning device 4.2 of the hip quick-clamping assembly 4, hang the hook of the pull belt 5.9 in the bending transmission assembly 5 on the steel rope 3.3 in the bending bracket 3, and start the test program to conduct the calibration test for the waist bending of the dummy;

[0079] That is, in this embodiment, the calibration of the waist bending of the dummy can be described as:

[0080] (1) Select a bending bracket adapted to the dummy to be tested and fix it on the back of the dummy to be tested;

[0081] (2) Select a fixed clamping device adapted to the dummy to be tested and install it on the hip of the dummy to be tested;

[0082] (3) Place the dummy to be tested on the hip quick-clamping assembly at the mating part with the fixed clamping device through the boom assembly, and fix it with the quick-lock handle at the same time;

[0083] (4) Fix the sensor fixing plate of the fixed inclination sensor on the bending bracket with the quick-lock handle, and at the same time control the screw rod lifting assembly through the control system to adjust the back angle of the dummy to be tested;

[0084] (5) Hang the hook connected to the pull belt and the tension sensor in the bending transmission assembly on the steel rope of the bending bracket; at the same time, control the pull belt position adjustment assembly through the control system to adjust the angle of the pull belt;

[0085] (6) Insert the Lemo 1B 7-core connectors of the inclination sensor and the tension sensor into the data acquisition board, and start the calibration test for the waist bending of the dummy according to the requirements of the waist bending calibration of the dummy through computer operation.

[0086] Among them, the specific steps of the hip test method are as follows: fix the hip joint seat 4.1.1 and the clamping block 4.1.2 of the fixed clamping device 4.1 of the hip quick-clamping assembly 4, place the dummy on the working platform 2 through the crane in the boom assembly 7, fix the dummy's hip by clamping and fixing the fixed clamping device 4.1 through the quick clamping and positioning device 4.2 of the hip quick-clamping assembly 4, and at the same time press the dummy's hip with the arc-shaped pressing block 10.6 of the waist pressing assembly 10; after fixing the thigh quick-clamping assembly 9 and the thigh bone connection component 9.2 installed on the circular arc gear transmission assembly 11, start the test to conduct the dummy hip bending test calibration experiment;

[0087] That is, in this embodiment, the dummy hip bending calibration can be described as:

[0088] (1) Select a thigh bone connection block suitable for the dummy to be tested and fix it on the thigh bone of the dummy to be tested;

[0089] (2) Select a fixed clamping device suitable for the dummy to be tested and install it on the hip of the dummy to be tested;

[0090] (3) Place the dummy to be tested on the quick clamping and positioning assembly through the boom assembly at the mating part with the fixed embedding device, and fix it with the quick lock handle at the same time;

[0091] (4) Fix the arc-shaped pressing block on the hip of the dummy to be tested through the quick handle of the waist pressing assembly;

[0092] (5) Connect and fix the thigh quick clamping assembly fixed on the circular arc gear transmission assembly to the thigh bone connection block through the quick handle;

[0093] (6) Insert the Lemo 1B 7-core connectors of the inclination sensor and the torque sensor into the data acquisition board, and start the dummy torso bending calibration test according to the requirements of the dummy torso bending calibration through computer operation.

[0094] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill 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 manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A dummy waist and hip bending test system, characterized in that, It includes a platform frame (1), a working platform (2), a dummy with a waist and hips, and a hip quick-clamping assembly (4), including a fixed clamping device (4.1) and a quick clamping and positioning device (4.2), which fixes the dummy's hips or waist on the working platform (2); waist pressing assemblies (10), two of them, respectively placed on both sides of the dummy to support the dummy's hips on both sides during calibration tests to fix the dummy's hips; thigh quick-clamping assemblies (9), including a sensor fixing component (9.1) and a thigh bone connecting component (9.2), which are used to fix the hips and thighs and detect and collect the pelvic angle of hip bending; a bending and pulling transmission assembly (5), which, in cooperation with a bending and pulling bracket (3), applies a pulling force to the fixed dummy to make it bend forward to achieve the simulation of the dummy's bending force; a pulling belt position adjustment assembly (6), which adjusts the pulling belt (5.5) in the bending and pulling transmission assembly (5) according to the different requirements of the force application direction for different models of dummies during waist bending calibration tests to meet the needs of calibration tests; a boom combination assembly (7), which applies the required pulling force from behind according to the different required pulling force directions from behind for different models of bending test dummies; an arc gear transmission assembly (11), which is used to realize the bending and stretching of the dummy during hip bending tests; Among them, the fixed clamping device (4.1) of the hip quick-clamping assembly (4) includes a hip joint seat (4.1.1) and a clamping block (4.1.2). After installing the hip joint seat (4.1.1) and the clamping block (4.1.2), it is fixed to the hip interface of the dummy with screws; the quick clamping and positioning device (4.2) of the hip quick-clamping assembly (4) includes a first bottom plate (4.2.1), a base (4.2.2), a quick-clamping handle (4.2.3), a connecting block (4.2.4), a push rod (4.2.5), an inclined clamping block (4.2.6), a pressing guide block (4.2.7), a positioning guide block (4.2.8), a special-shaped guide block (4.2.9) and a T-shaped locking block (4.2.10). After connecting the T-shaped locking block (4.2.10) and the first bottom plate (4.2.1), place the T-shaped locking block (4.2.10) in the chute on the working platform (2) and lock it; change the position of the T-shaped locking block (4.2.10) in the chute of the working platform (2) according to different models of dummies to be tested to change the position of the hip quick-clamping assembly (4) on the working platform (2); The sensor fixing assembly (9.1) of the thigh quick-clamping assembly (9) 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-clamping screw; the thigh bone connecting assembly (9.2) of the thigh quick-clamping assembly (9) includes a thigh bone connecting block (9.2.1), 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 by 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 thigh bone connecting member and locked by the second locking handle; the torque sensor is used to collect the bending moment of the hip bending, the inclination sensor mounting seat is fixed to the first sensor connecting seat, and the inclination sensor mounted on the inclination sensor mounting seat is used to collect the pelvic angle of the hip bending; The waist pressing 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 pressing block (10.6), a guide block (10.7), and a third locking handle (10.8); two waist pressing assemblies (10) are respectively placed on both sides of the dummy to support the dummy's hips on both sides during the calibration test; the waist pressing assembly (10) is fixed to the workbench (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 to the locking plate (10.2), the elliptical fixing column (10.5) passes through the column (10.3) and is eccentrically arranged and fixed by the knob (10.4), and during the test, a certain support is given to both sides of the dummy's hips by adjusting the elliptical fixing column (10.5); 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), and during the calibration test, the two arc-shaped pressing blocks (10.6) are extended and brought into contact with the inner side position of the hips to fix the dummy's hips.

2. The dummy waist-hip bending test system according to claim 1, wherein: The bending and stretching 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); among them, the back mounting bracket (3.1) 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 then both ends are connected to the two brackets of the back mounting bracket (3.1); the pulling belt hook (5.8) of the bending and stretching transmission assembly (5) is hung on the steel rope (3.3), and the servo motor (5.1) drives to bend the dummy; the pulling rope (7.6.3) - sensor fixing plate (7.6.4) driven by the motor 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 to the back of the dummy.

3. The dummy waist and hip bending test system according to claim 1, characterized in that: The bending and stretching transmission assembly (5) includes a servo motor (5.1), a reducer (5.2), an intermediate transmission component (5.3), a pulley (5.4), a pulling belt (5.5), a pulling belt connection seat (5.6), a tension sensor (5.7), a pulling belt hook (5.8), and a fixed bottom plate (5.9); the bending and stretching transmission assembly (5) is fixed on the platform frame (1) through the fixed bottom plate (5.9), one end of the pulling belt (5.5) is fixed on the pulley (5.4), and the other end is fixed on the pulling belt connection seat (5.6) through bolts, one end of the tension sensor (5.7) is fixed on the pulling belt connection seat (5.6), and the other end is connected to the pulling belt hook (5.8), and the pulling belt hook (5.8) is hung on the steel rope (3.3) of the bending and stretching bracket (3); the power provided by the servo motor (5.1) is decelerated by the 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 pulling belt (5.5) to bend the waist of the dummy forward, and the tension sensor (5.7) collects the tension received when the waist of the dummy bends.

4. The dummy waist and hip bending test system according to claim 1, characterized in that: The pulling belt position adjustment assembly (6) includes a DC motor (6.1), a worm and worm gear reducer (6.2), a main shaft (6.3), a roller (6.4), and sliding components (6.5) symmetrically distributed on both sides of the roller (6.4); the DC motor (6.1) is connected to the worm and worm gear reducer (6.2), and the pulling belt (5.5) of the bending and stretching transmission assembly (5) bypasses below the roller (6.4); the power provided by the DC motor (6.1) is transmitted to the main shaft (6.3) through the worm and 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 components (6.5), thereby changing the pulling force direction of the pulling belt (5.5) to meet the different requirements for the force direction in the waist bending calibration test of different models of dummies.

5. The dummy waist-hip bending test system according to claim 1, characterized in that: The boom assembly (7) includes a crane-boom combination (7.1), a vertical boom (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 spirit level support assembly (7.8); Among them, the motor-pull rope assembly (7.6) includes 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 installed on the screw-lifting device (7.4) through the motor fixing seat (7.6.5). The steel wheel (7.6.2) is installed on the motor. 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); a backward 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); and the height of the motor-pull rope assembly (7.6) is adjusted through the screw-lifting device (7.4) to meet the required backward pulling force directions for bending test dummies of different models. The spirit level support assembly (7.8) is installed on the vertical boom (7.2). The second inclination sensor (7.7) is installed on the sensor fixing plate (7.6.4) after being calibrated on the spirit level support, and is used to collect the bending angle of the dummy during the bending calibration test.

6. The dummy waist and hip bending test system according to claim 1, wherein: The arc gear transmission assembly (11) includes a guide rail support plate (11.1), a linear guide rail assembly (11.2), a second bottom plate (11.3), a second servo motor (11.4), a second reducer (11.5), and an arc gear transmission component (11.6); among them, the arc gear transmission assembly (11) is fixed on the platform frame (1) through the guide rail support plate (11.1). The second bottom plate (11.3) is fixed on the linear guide rail assembly (11.2), and the left and right movement of the arc gear transmission assembly (11) is realized through the linear guide rail assembly (11.2) to meet the different requirements of the pulling force positions for dummies of different models; the power provided by the second servo motor (11.4) is transmitted to the arc gear transmission component (11.6) after being decelerated by the second reducer (11.5), so as to realize the second servo motor (11.4) controlling the upward and downward movement of the arc rack at a specified speed, enabling the arc gear transmission assembly (11) to transmit the power to the dummy through the thigh quick-clamping assembly (9), and the upward and downward movement of the arc rack realizes the bending and stretching of the dummy during the hip bending test.

7. Method for testing the waist-hip bending of a dummy, characterized in that: Based on the dummy waist and hip bending test system according to any one of claims 1-6, it includes a waist test method and a hip test method. First, fix 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-clamping assembly (4), and place the dummy on the working platform (2) by the crane in the jib assembly (7); fix the dummy by clamping and fixing the fixing and clamping device (4.1) through the quick clamping and positioning device (4.2) of the hip quick-clamping assembly (4). Further, if a waist test is to be carried out, then: install the bending bracket (3) on the back of the waist-bending dummy (8), fix the pull rope (7.6.3)-sensor fixing plate (7.6.4) driven by the motor in the jib assembly (7) on the bending bracket (3), hang the belt hook (5.8) in the bending transmission assembly (5) on the steel rope (3.3) in the bending bracket (3), and start the test program to carry out the calibration test for the waist bending test of the dummy. Further, if a hip test is to be carried out, then: press the hip of the dummy with the arc-shaped pressing block (10.6) of the waist pressing assembly (10); after fixing the thigh quick-clamping assembly (9) and the thigh bone connecting component (9.2) installed on the circular arc gear transmission assembly (11), start the test to carry out the calibration test for the hip bending test of the dummy.

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