Anti-collision performance testing instrument and testing method thereof

Abstract

The invention discloses an anti-collision performance testing instrument and a testing method thereof, comprising a mounting platform, wherein a symmetrically arranged mounting base is arranged on the mounting platform, a rotating shaft is arranged between two mounting bases, and a lower leg simulation board is movably arranged on the rotating shaft, an upper leg simulation board is movably arranged on the top of the lower leg simulation board, an upper body simulation board is movably arranged on the top of the upper leg simulation board, an elastic neck is arranged on the top of the upper body simulation board, and a simulation head is arranged on the top of the elastic neck, and a plurality of rectangular limiting grooves are arranged to add a plurality of complete rectangular blocks according to needs to adapt to the gravity simulation of children of different weights when falling; the falling mode can be automatically monitored by the setting of the trigger block, and the falling mode of children in multiple states can be realized, so as to realize the most comprehensive simulation of injuries to children, provide the best and most accurate experimental data for researching protective devices, and truly provide the safest and most comprehensive protection for children.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-collision testing, and in particular relates to an anti-collision performance testing instrument and a testing method thereof. Background Art

[0002] Knitted functional items for infants and young children, such as toddler anti-collision pillows, toddler head protection caps, and toddler head protection pads, are currently widely used in the growth process of newborns. When infants and young children are learning to walk, their ability to control the center of gravity of their bodies is still weak, and their leg muscles are not strong enough. When supporting their bodies to walk, they may suddenly become weak, and when they take the next step, their leg strength is not enough to maintain the upright state of their bodies, so they are prone to falling. It is common for infants and young children to land on their heads and backs first when they fall, and landing on the back of their heads is a more dangerous situation, which may cause more serious head injuries. When falling backwards, infants and young children's arms may swing backwards, but it is usually difficult to effectively cushion the force of the fall. Toddler anti-collision pillows, toddler head protection caps, and toddler head protection pads are very popular among parents.

[0003] At present, there are no testing methods and testing instruments suitable for the protective performance of knitted functional pillows for infants and young children, such as toddler anti-collision pillows, toddler head protection caps, and toddler head protection pads in the industry, so their protective performance cannot be characterized, and the protective performance for infants and young children cannot be guaranteed. In addition, the existing testing devices cannot simulate the various falling states of children, and thus cannot fully simulate the states that children are about to encounter, nor can they fully predict injuries, and thus cannot protect children well. The existing testing devices can only detect upright falls and cannot realize other multiple falling methods. Summary of the invention

[0004] The object of the present invention is to provide an anti-collision performance testing instrument and a testing method thereof to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-collision performance testing instrument, comprising a mounting platform, on which symmetrical mounting bases are arranged, a rotating shaft is arranged between two mounting bases, and a lower leg simulation board is arranged movably through the rotating shaft, an upper leg simulation board is arranged movably on the top of the lower leg simulation board, an upper body simulation board is arranged movably on the top of the upper leg simulation board, an elastic neck is arranged on the top of the upper body simulation board, and a simulation head is arranged on the top of the elastic neck;

[0006] The lower leg simulation board and the upper leg simulation board are movably connected to each other through a spring 1 and a central axis, and the upper leg simulation board rotates clockwise with the central axis as the center of the circle through the setting of the spring 1;

[0007] A plurality of rectangular limit grooves are provided on the upper leg simulation board, the lower leg simulation board and the rectangular limit grooves, and the right-angle limit of the rectangular limit grooves is used to limit the state between the upper leg simulation board, the lower leg simulation board and the rectangular limit grooves to form an overall character shape, and a magnet is arranged inside the rectangular limit groove, and a rectangular block is inlaid inside the rectangular limit groove.

[0008] Preferably, the rectangular limit groove is provided with a compensation groove at the bottom of the upper body simulation board, a rectangular compensation rod is hinged inside the compensation groove, the rectangular block is formed by two sections being clamped together and the clamping part matches the position of the rectangular compensation rod in the rectangular limit groove, and one section of the rectangular block realizes gravity matching through the right-angle limitation between the top of the rectangular limit groove and the rectangular compensation rod.

[0009] Preferably, the movable connection between the upper body simulation board and the upper leg simulation board is the same as that between the upper leg simulation board and the lower leg simulation board to increase the resistance of direct limiting for overall fixation.

[0010] Preferably, extension rods are provided on both sides of the bottom of the mounting platform, a movable limit rod is fixedly provided between the extension rod and the mounting platform and the movable limit rod is slidably connected to the bottom of the mounting platform, one end of the two extension rods is U-shaped and a plurality of springs are fixedly connected to the bottom of one side of the mounting platform, the other end of the extension rod is fixedly connected to an impact plate and a plurality of universal wheels are provided at the bottom of the impact plate.

[0011] Preferably, a compensation platform is provided on the mounting platform, a trigger block is slidably provided on the compensation platform, and the distance between the trigger block and the center of the rotating shaft on the mounting base is the same as the distance from the top of the lower leg simulation board to the center of the rotating shaft on the mounting base.

[0012] Preferably, a mounting groove is provided inside the mounting platform, a limit rod is movably connected inside the mounting groove via a rotating shaft, and a torsion spring is connected between the rotating shaft inside the limit rod and the limit rod.

[0013] Preferably, the movable limiting rod is arranged at the bottom of one end of the limiting rod and a gear bar is processed on the top of the movable limiting rod, and the gear bar and the limiting rod are mutually limited to form a ratchet pawl state.

[0014] Preferably, at least one circular magnet is disposed on one side of the upper body simulation board, a mounting frame is fixed on one side of the top of the mounting platform, and a magnet bar for adsorbing and fixing the circular magnet is disposed on one side of the mounting frame.

[0015] A testing method for an anti-collision performance testing instrument, the specific steps are as follows:

[0016] Step 1: Adjust the number and status of rectangular blocks according to needs;

[0017] The falling mode is determined by rotating the rectangular block. When the complete rectangular block is rotated, the rectangular block has the same limiting effect on the upper body simulation board, the upper leg simulation board and the lower leg simulation board, and the right-angle setting has a good blocking effect on the rebound force of the spring 1; secondly, by selecting the upper end of the two sections of the rectangular block to be placed on the upper body simulation board and using the rectangular compensation rod at the bottom to perform right-angle compensation for the rectangular limiting, the spring 1 between the upper leg simulation board and the lower leg simulation board can be used to achieve leg bending to form another wrestling mode while simulating wrestling;

[0018] To simulate the rotation of the child's weight, multiple rectangular limit slots can be used to add several complete rectangular blocks according to needs to adapt to the gravity simulation of children of different weights when they fall;

[0019] Step 2: The trigger block can be set to monitor the falling method. When the person falls upright, the whole body rotates straight and does not touch the trigger block. At this time, the position of the impact plate is just right. When the person bends first and then falls, the angle between the lower leg simulation plate and the upper leg simulation plate is rotated to make the lower leg simulation plate hit the trigger block.

[0020] Step 3: The impact of the trigger block on the lower leg simulation board will drive one end of the limit rod limit gear bar to lift up. At this time, the limit of the gear bar is lost, driving the movable limit rod, the extension rod and the entire impact plate to automatically adjust the position of the impact plate under the rebound force of the second spring, and adapt to different simulation states;

[0021] Step 4: By using the setting of spring 2, the impact plate can be pulled at the beginning of each simulation to drive spring 2 to extend, and the ratchet pawl state between the limit rod and the gear bar will not hinder the extension of spring 2 and the displacement of the impact plate, extension rod and movable limit rod.

[0022] The technical effects and advantages of the present invention are as follows: through the rotation of the rectangular block, when the complete rectangular block is rotated, the limiting effect of the rectangular block on the upper body simulation board, the upper leg simulation board and the lower leg simulation board is consistent, and the right-angle setting is used to effectively block the rebound force of the spring 1; secondly, by selecting the upper end of the two sections of the rectangular block to be placed on the upper body simulation board and using the rectangular compensation rod to perform right-angle compensation for the rectangular limiting at the bottom, the spring 1 between the upper leg simulation board and the lower leg simulation board can be used to achieve leg bending to form another wrestling method while simulating wrestling; simulating the rotation of the child's weight, using the setting of multiple rectangular limiting grooves, several complete rectangular blocks can be added according to needs to adapt to the gravity simulation of children of different weights when falling; through the setting of the trigger block, the wrestling method can be automatically monitored, and the multi-state child falling method can be realized, thereby realizing the most comprehensive simulation of child injuries, providing the best and most accurate experimental data for researching protective devices, and truly providing the safest and most comprehensive protection for children, and the overall automation level is high, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a side view structural schematic diagram of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0026] Figure 4 A bottom view of the present invention;

[0027] Figure 5 It is a front view of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of the local structure of part B in the middle.

[0029] In the figure: 1. impact plate; 2. extension rod; 3. mounting platform; 4. trigger block; 5. simulation head; 6. mounting frame; 7. elastic neck; 8. upper body simulation board; 9. upper leg simulation board; 10. lower leg simulation board; 11. mounting base; 12. compensation platform; 13. rectangular limit groove; 14. circular magnet; 15. spring one; 16. center axis; 17. rectangular compensation rod; 18. compensation groove; 19. movable limit rod; 20. spring two; 21. mounting groove; 22. torsion spring; 23. limit rod; 24. gear bar. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention provides an anti-collision performance testing instrument as shown in the figure, comprising a mounting platform 3, on which mounting bases 11 are symmetrically arranged, a rotating shaft is arranged between the two mounting bases 11, and a lower leg simulation board 10 is movably arranged through the rotating shaft, an upper leg simulation board 9 is movably arranged on the top of the lower leg simulation board 10, an upper body simulation board 8 is movably arranged on the top of the upper leg simulation board 9, an elastic neck 7 is arranged on the top of the upper body simulation board 8, and a simulation head 5 is arranged on the top of the elastic neck 7;

[0032] The lower leg simulation board 10 and the upper leg simulation board 9 are movably connected to each other through a spring 15 and a central axis 16, and the upper leg simulation board 9 rotates clockwise with the central axis 16 as the center through the setting of the spring 15;

[0033] A plurality of rectangular limit grooves 13 are provided on the upper leg simulation board 9, the lower leg simulation board 10 and the rectangular limit grooves 13, and the right-angle limit of the rectangular limit grooves 13 is used to limit the state between the upper leg simulation board 9, the lower leg simulation board 10 and the rectangular limit grooves 13 to form an overall character shape, and a magnet is arranged inside the rectangular limit grooves 13, and a rectangular block is inlaid inside the rectangular limit grooves 13.

[0034] Specifically, a compensation groove 18 is provided at the bottom of the upper body simulation board 8, and a rectangular compensation rod 17 is hinged inside the compensation groove 18. The rectangular block is formed by two sections being clamped together and the clamping point matches the position of the rectangular compensation rod 17 in the rectangular limit groove 13. One section of the rectangular block achieves gravity matching through the right-angle limitation between the top of the rectangular limit groove 13 and the rectangular compensation rod 17.

[0035] Specifically, the movable connection between the upper body simulation board 8 and the upper leg simulation board 9 is the same as that between the upper leg simulation board 9 and the lower leg simulation board 10 to increase the resistance of direct limiting for overall fixation.

[0036] Specifically, extension rods 2 are provided on both sides of the bottom of the mounting platform 3, a movable limit rod 19 is fixedly provided between the extension rod 2 and the mounting platform 3, and the movable limit rod 19 is slidably connected to the bottom of the mounting platform 3, one end of the two extension rods 2 is connected in a U shape and a plurality of springs 20 are fixedly connected to the bottom of one side of the mounting platform 3, the other end of the extension rod 2 is fixedly connected to the impact plate 1 and a plurality of universal wheels are provided at the bottom of the impact plate 1.

[0037] Specifically, a compensation platform 12 is provided on the mounting platform 3, a trigger block 4 is slidably provided on the compensation platform 12, and the distance between the trigger block 4 and the center of the rotating shaft on the mounting base 11 is the same as the distance from the top of the lower leg simulation board 10 to the center of the rotating shaft on the mounting base 11.

[0038] Specifically, a mounting groove 21 is provided inside the mounting platform 3 , a limit rod 23 is movably connected inside the mounting groove 21 via a rotating shaft, and a torsion spring 22 is connected between the rotating shaft inside the limit rod 23 and the limit rod 23 .

[0039] Specifically, the movable limiting rod 19 is arranged at the bottom of one end of the limiting rod 23 and a gear bar 24 is processed on the top of the movable limiting rod 19, and the gear bar 24 and the limiting rod 23 are mutually limited to form a ratchet pawl state.

[0040] Specifically, at least one circular magnet 14 is disposed on one side of the upper body simulation board 8 , a mounting frame 6 is fixed on one side of the top of the mounting platform 3 , and a magnet bar for adsorbing and fixing the circular magnet 14 is disposed on one side of the mounting frame 6 .

[0041] Working principle: through the rotation of the rectangular block, when the complete rectangular block is rotated, the limiting effect of the rectangular block on the upper body simulation board 8, the upper leg simulation board 9 and the lower leg simulation board 10 is consistent, and the right-angle setting is used to block the rebound force of the spring 15; second, by selecting the upper end of the two sections of the rectangular block to be placed on the upper body simulation board 8 and using the rectangular compensation rod 17 at the bottom to perform right-angle compensation for the rectangular limiting, the spring 15 between the upper leg simulation board 9 and the lower leg simulation board 10 can be used to achieve leg bending to form another wrestling method while simulating wrestling; simulating the rotation of the child's weight, using the setting of multiple rectangular limiting grooves 13, a number of complete rectangular blocks can be added according to needs to adapt to the gravity simulation of children of different weights when falling; through the setting of the trigger block 4, the wrestling method can be monitored automatically, and the whole body forms a straight rotation during upright wrestling without touching the trigger block. 4. At this time, the position of the impact plate 1 is just right. When the simulation of bending first and then falling is performed, the angle between the lower leg simulation plate 10 and the upper leg simulation plate 9 is rotated to make the lower leg simulation plate 10 hit the trigger block 4; the impact of the trigger block 4 on the lower leg simulation plate 10 will drive the limit rod 23 to limit one end of the gear bar 24 to lift upward, and at this time the limit of the gear bar 24 is lost, driving the movable limit rod 19, the extension rod 2 and the entire impact plate 1 to automatically adjust the position of the impact plate 1 by the rebound force of the spring 20, and adapt to different simulation states; by using the setting of the spring 20, the impact plate 1 can be pulled at the beginning of each simulation to drive the spring 20 to extend (during the period, the trigger block 4 is pressed to provide the movement of the movable limit rod 19), and the ratchet pawl state between the limit rod 23 and the gear bar 24 does not hinder the extension of the spring 20 and the displacement of the impact plate 1, the extension rod 2 and the movable limit rod 19;

[0042] One end of the rotating shaft for mounting the lower leg simulation board 10 on the mounting base 11 can be connected to a motor (the motor is not shown, and the connection between the motor and the rotating shaft is a prior art), so as to start the motor to reset the fallen human model. When the human model is freely tipping over, the motor does not run and the output shaft rotates freely. The electromagnetic rod installed on the mounting frame 6 is retractable, so as to facilitate the control of the human model formed by the upper body simulation board 8, the upper leg simulation board 9 and the lower leg simulation board 10 to be tilted, so as to facilitate the tipping over when the electromagnetic adsorption is lost.

[0043] In summary, the present invention can realize multi-state child falling modes, thereby achieving the most comprehensive simulation of child injuries, providing the best and most accurate experimental data for researching protective devices, and truly providing the safest and most comprehensive protection for children. It also has a high overall degree of automation and is convenient to operate.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-collision performance testing instrument, comprising a mounting platform (3), characterized in that: The mounting platform (3) is provided with symmetrically arranged mounting bases (11), a rotating shaft is provided between the two mounting bases (11), and a lower leg simulation board (10) is movably provided via the rotating shaft, an upper leg simulation board (9) is movably provided on the top of the lower leg simulation board (10), an upper body simulation board (8) is movably provided on the top of the upper leg simulation board (9), an elastic neck (7) is provided on the top of the upper body simulation board (8), and a simulation head (5) is provided on the top of the elastic neck (7); The lower leg simulation plate (10) and the upper leg simulation plate (9) are movably connected to each other via a spring 1 (15) and a central axis (16), and the upper leg simulation plate (9) rotates clockwise with the central axis (16) as the center of the circle due to the setting of the spring 1 (15); A plurality of rectangular limiting grooves (13) are provided on the upper leg simulation plate (9), the lower leg simulation plate (10) and the rectangular limiting groove (13), and the rectangular limiting grooves (13) are used to limit the state between the upper leg simulation plate (9), the lower leg simulation plate (10) and the rectangular limiting grooves (13) to form an overall human figure shape through right-angle limiting of the rectangular limiting grooves (13), and a magnet is provided inside the rectangular limiting grooves (13), and a rectangular block is inlaid inside the rectangular limiting grooves (13); Extension rods (2) are provided on both sides of the bottom of the mounting platform (3); a movable limiting rod (19) is fixedly provided between the extension rod (2) and the mounting platform (3), and the movable limiting rod (19) is slidably connected to the bottom of the mounting platform (3); one end of the two extension rods (2) is connected in a U-shape and a plurality of springs (20) are fixedly connected to the bottom of one side of the mounting platform (3); the other end of the extension rod (2) is fixedly connected to an impact plate (1), and a plurality of universal wheels are provided at the bottom of the impact plate (1); The mounting platform (3) is provided with a compensation platform (12), the compensation platform (12) is slidably provided with a trigger block (4), and the distance between the trigger block (4) and the center of the rotating shaft on the mounting base (11) is the same as the distance between the top of the lower leg simulation plate (10) and the center of the rotating shaft on the mounting base (11); A mounting groove (21) is provided inside the mounting platform (3), a limit rod (23) is movably connected inside the mounting groove (21) via a rotating shaft, and a torsion spring (22) is connected between the rotating shaft inside the limit rod (23) and the limit rod (23).

2. The anti-collision performance testing instrument according to claim 1, characterized in that: The rectangular limit groove (13) is provided with a compensation groove (18) at the bottom of the upper body simulation board (8), a rectangular compensation rod (17) is hinged inside the compensation groove (18), the rectangular block is formed by two sections being clamped together, and the clamping part matches the position of the rectangular compensation rod (17) in the rectangular limit groove (13), and one section of the rectangular block realizes gravity matching through the right-angle limit between the top of the rectangular limit groove (13) and the rectangular compensation rod (17).

3. The anti-collision performance testing instrument according to claim 1, characterized in that: The movable connection between the upper body simulation board (8) and the upper leg simulation board (9) is the same as that between the upper leg simulation board (9) and the lower leg simulation board (10), thereby increasing the direct limiting resistance to achieve overall fixation.

4. The anti-collision performance testing instrument according to claim 1, characterized in that: The movable limiting rod (19) is arranged at the bottom of one end of the limiting rod (23) and a gear bar (24) is processed on the top of the movable limiting rod (19), and the gear bar (24) and the limiting rod (23) are mutually limited to form a ratchet pawl state.

5. The anti-collision performance testing instrument according to claim 1, characterized in that: At least one circular magnet (14) is provided on one side of the upper body simulation board (8), a mounting frame (6) is fixed on one side of the top of the mounting platform (3), and a magnet bar for adsorbing and fixing the circular magnet (14) is provided on one side of the mounting frame (6).

6. The method for testing a collision avoidance performance testing instrument according to claim 1, characterized in that: The specific steps are as follows: Step 1: Adjust the number and status of rectangular blocks according to needs; The falling mode is determined by rotating the rectangular block. When the complete rectangular block is rotated, the rectangular block has the same limiting effect on the upper body simulation plate (8), the upper leg simulation plate (9) and the lower leg simulation plate (10), and the right-angle setting has a good blocking effect on the rebound force of the spring 1 (15); secondly, by selecting the upper end of the two sections of the rectangular block to be placed on the upper body simulation plate (8) and using the rectangular compensation rod (17) at the bottom to perform right-angle compensation for the rectangular limiting, the spring 1 (15) between the upper leg simulation plate (9) and the lower leg simulation plate (10) can be used to achieve leg bending to form another wrestling mode while simulating wrestling; To simulate the rotation of the child's weight, a plurality of rectangular limit slots (13) can be used to add a number of complete rectangular blocks according to needs to adapt to the gravity simulation of children of different weights when they fall; Step 2: The trigger block (4) can be set to monitor the falling method. When the person falls upright, the whole body rotates straight and does not touch the trigger block (4). At this time, the position of the impact plate (1) is just right. When the person is simulating bending first and then falling, the angle between the lower leg simulation plate (10) and the upper leg simulation plate (9) is rotated so that the lower leg simulation plate (10) hits the trigger block (4). Step 3: The impact of the trigger block (4) on the lower leg simulation plate (10) will drive the limit rod (23) and one end of the limit gear bar (24) to lift upward. At this time, the limit of the gear bar (24) is lost, driving the movable limit rod (19), the extension rod (2) and the entire impact plate (1) to automatically adjust the position of the impact plate (1) under the rebound force of the second spring (20), so as to adapt to different simulation states; Step 4: By using the setting of the second spring (20), the impact plate (1) can be pulled at the beginning of each simulation to drive the second spring (20) to extend, and the ratchet pawl state between the limit rod (23) and the gear bar (24) will not hinder the extension of the second spring (20) and the displacement of the impact plate (1), the extension rod (2) and the movable limit rod (19).

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