A vehicle test dummy

Abstract

The present invention belongs to the technical field of vehicle test dummies, and specifically is a vehicle test dummy, comprising a chest, a neck is installed at the top of the chest, a head is installed at the top of the neck, a first slot is opened behind the head, a pressure sensor is installed inside the first slot, and a detection plate is arranged at the pressure-bearing end of the pressure sensor; the vehicle test dummy described in the present invention is provided with a detection plate, and when a collision test is performed, a hairpin is clamped and fixed by two guide plates, and when a collision test is performed, the torque generated by the compression between the hairpin and the seat back is transmitted to the pressure sensor through the detection plate, and the pressure sensor transmits data to an external computer, and a staff member analyzes how much damage the hairpin can cause to the driver according to the data; the actual wearing of the hairpin is simulated.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle test dummies, in particular to a vehicle test dummy. Background Art

[0002] The vehicle test dummy is an experimental instrument made of special materials based on the principles of ergonomics. It can replace the human body in automobile collision experiments, thereby simulating the injuries suffered by real people and can be reused. Currently, new energy vehicles are developing rapidly. After producing a new energy vehicle, car companies need to conduct collision tests, and need to use professional dummies for testing. New energy vehicles are constantly optimized based on test results to improve the quality and performance of the vehicle.

[0003] During the test, the dummy is placed in the driving seat or other seats in the vehicle; the sensors in the dummy will record relevant data when the vehicle collides; the staff will judge the various performance of the vehicle in the collision based on the data; however, in the actual test process; the dummy still has limitations for the test process. For example, for female drivers, when women have long hair, they often choose to use hairpins to fix their hair at the back of the head. Once a collision occurs during driving, the driver's head will move forward due to inertia and collide with the open protective bag, and then rebound, causing the back of the head to hit the back of the seat, and the hairpin behind the head hits the back of the seat, which can easily cause damage to the head; it is difficult for existing dummies to simulate and record relevant data on hairpin-induced head damage.

[0004] To this end, the present invention provides a vehicle test dummy. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a vehicle test dummy according to the present invention comprises a chest, a neck is installed at the top of the chest, a head is installed at the top of the neck, a first slot is opened behind the head, a pressure sensor is installed inside the first slot, a detection plate is arranged at the pressure-receiving end of the pressure sensor, a part of the detection plate is embedded in the first slot, and the other part is located outside the first slot;

[0007] A plurality of plug-in slots are evenly arranged on one side of the detection plate outside the first slot body, a pair of fixing slots penetrating the plug-in slots are arranged on the upper and lower sides of the detection plate, a guide plate is inserted inside the plug-in slot, and friction exists between the guide plate and the plug-in slot.

[0008] Preferably, the guide plate is provided with a clamping slot aligned with the fixing slot at both upper and lower ends; a fixing frame is plugged into the fixing slot, and the fixing frame passes through the fixing slot, the plugging slot and the clamping slot.

[0009] Preferably, a pair of fixing blocks are provided through the side of the detection plate, and the pair of fixing blocks are symmetrical based on the center of the detection plate; one end of the fixing block is located inside the first slot body, and the other end is located outside the first slot body; an electric telescopic rod is provided at one end of the fixing block located inside the first slot body, and the housing part of the electric telescopic rod is installed on the inner wall of the first slot body, and the output end of the electric telescopic rod is connected to one end of the fixing block located inside the first slot body;

[0010] A mounting groove is provided on one side of the fixing block facing the center of the detection plate, a camera is arranged inside the mounting groove, and the camera end of the camera is aligned with the detection plate and located at the center of one side outside the first groove body; a pair of connecting parts are provided on the upper and lower sides of the camera, a friction plate is provided on the end of the connecting part away from the camera, and the friction plate is pressed against the inner wall of the mounting groove.

[0011] Preferably, the connecting member is an air spring.

[0012] Preferably, a transparent baffle is provided at the notch of the mounting slot.

[0013] Preferably, a plurality of positioning grooves are provided at the top of the head, a magnetic block is fixedly connected to the inner wall of the positioning groove, a magnetic rod is inserted into the notch of the positioning groove, and the magnetic rod and the magnetic block attract each other.

[0014] Preferably, a second slot body is provided behind the head and above the first slot body, a driving roller is rotatably arranged inside the second slot body, a motor is provided at the end of the driving roller, the motor housing part is installed on the inner wall of the second slot body, and the output end of the motor is fixedly connected to the end of the driving roller.

[0015] Preferably, a groove is provided on the inner bottom wall of the second trough body and is located directly below the driving roller, and a docking roller is rotatably arranged inside the groove.

[0016] Preferably, a plurality of inflation grooves are evenly formed on the side surface of the driving roller; and air bags are arranged inside the inflation grooves.

[0017] Preferably, a partition is provided between the driving roller and the deepest inner wall of the second trough body, and the bottom end of the partition is at the same height as the bottom of the driving roller.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. A vehicle test dummy described in the present invention is provided with a detection plate. When a collision test is performed, a hairpin is clamped and fixed by two guide plates. When a collision test is performed, the torque generated by the squeezing between the hairpin and the seat back is transmitted to the pressure sensor through the detection plate. The pressure sensor transmits the data to an external computer. The staff analyzes the data to determine how much damage the hairpin may cause to the driver, thereby simulating the actual situation of wearing a hairpin.

[0020] 2. A vehicle test dummy described in the present invention is provided with a magnetic rod and a magnetic block; during testing, the magnetic rod is first taken out of the positioning slot, and then the inner lining net of the wig is sleeved on the top of the head, and then the magnetic rod is placed above the inner lining net and inserted into the positioning slot, so that the inner lining net is partially embedded in the positioning slot, and the magnetic rod is restricted in the positioning slot by the magnetic force with the magnetic block, thereby restricting the wig to the head, and then the tail of the wig is fixed and bound to one side of the detection board by a hairpin, so as to meet the test needs; the wig is matched with the hairpin to make the simulation effect of the test more realistic, which is conducive to improving the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 It is a schematic diagram of the side view of the head of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection structure of the detection board of the present invention;

[0025] Figure 4 It is a side schematic diagram of the detection board of the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the detection board of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection between the guide plate and the fixing frame of the present invention;

[0028] Figure 7 is a schematic diagram of a guide plate of the present invention;

[0029] Figure 8 is a side schematic diagram of a fixing block of the present invention;

[0030] Fig. 9 It is a partial cross-sectional schematic diagram of the head of the present invention;

[0031] Fig.10 It is a schematic diagram of the magnetic block and the magnetic rod of the present invention;

[0032] Fig.11It is a schematic diagram of the internal structure of the second tank body of the present invention.

[0033] In the figure: 1. chest; 2. neck; 3. head; 31. first slot; 32. detection plate; 321. plug-in slot; 322. fixing slot; 33. guide plate; 34. fixing frame; 35. pressure sensor; 4. fixing block; 41. mounting slot; 42. camera; 43. connector; 44. friction plate; 45. transparent baffle; 46. electric telescopic rod; 5. positioning slot; 51. magnetic block; 52. magnetic rod; 6. second slot; 61. driving roller; 62. motor; 63. docking roller; 64. airbag; 65. partition. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figures 1 to 7 As shown, a vehicle test dummy according to an embodiment of the present invention comprises a chest 1, a neck 2 is mounted on the top of the chest 1, a head 3 is mounted on the top of the neck 2, a first slot 31 is provided at the rear of the head 3, a pressure sensor 35 is mounted inside the first slot 31, a detection plate 32 is provided at the pressure-bearing end of the pressure sensor 35, a part of the detection plate 32 is embedded in the first slot 31, and the other part is located outside the first slot 31;

[0036] A plurality of plug-in slots 321 are evenly formed on one side of the detection plate 32 outside the first slot body 31. A pair of fixing slots 322 penetrating the plug-in slots 321 are formed on the upper and lower sides of the detection plate 32. A guide plate 33 is inserted into the plug-in slot 321. There is friction between the guide plate 33 and the plug-in slot 321.

[0037] The embodiment of the present invention is provided with structures such as a detection plate 32, a guide plate 33, and a pressure sensor 35; the specific working process is as follows; when performing a collision test, the staff selects a suitable clamping thickness according to the size of the hairpin, that is, selects two guide plates 33 to be inserted into the plug-in slot 321, and a part of the guide plate 33 is located outside the plug-in slot 321, and the hairpin is clamped and fixed by the two guide plates 33. When performing a collision test, the torque generated by the compression between the hairpin and the seat back is transmitted to the pressure sensor 35 through the detection plate 32, and the pressure sensor 35 transmits the data to an external computer. The staff analyzes how much damage the hairpin can cause to the driver based on the data; the actual situation of wearing a hairpin is simulated.

[0038] The upper and lower ends of the guide plate 33 are provided with card slots aligned with the fixing slot 322; the fixing slot 322 is plugged with a fixing frame 34, and the fixing frame 34 passes through the fixing slot 322, the plug-in slot 321 and the card slot; when the guide plate 33 is inserted into the plug-in slot 321, the fixing frame 34 is inserted into the fixing slot 322, the plug-in slot 321 and the card slot, thereby fixing the guide plate 33 on the detection plate 32 to prevent loosening during collision that affects the detection effect.

[0039] like Figures 1 to 8 As shown, a pair of fixing blocks 4 are provided through the side of the detection plate 32, and the pair of fixing blocks 4 are symmetrical based on the center of the detection plate 32; one end of the fixing block 4 is located inside the first slot body 31, and the other end is located outside the first slot body 31; an electric telescopic rod 46 is provided at one end of the fixing block 4 located inside the first slot body 31, and the housing part of the electric telescopic rod 46 is installed on the inner wall of the first slot body 31, and the output end of the electric telescopic rod 46 is connected to one end of the fixing block 4 located inside the first slot body 31;

[0040] A mounting groove 41 is provided on one side of the fixing block 4 facing the center of the detection plate 32, and a camera 42 is arranged inside the mounting groove 41, and the camera end of the camera 42 is aligned with the detection plate 32 and located at the center of one side outside the first groove body 31; a pair of connecting members 43 are arranged on the upper and lower sides of the camera 42, and a friction plate 44 is arranged on the end of the connecting member 43 away from the camera 42, and the friction plate 44 is pressed against the inner wall of the mounting groove 41;

[0041] During the test, the camera 42 will record the image of the hairpin at the moment of the collision. During the collision, the camera 42 will inevitably vibrate. The vibration of the camera 42 will cause the recorded image to be blurred. Therefore, the camera 42 is set in the installation groove 41. At the moment of the vehicle collision, the camera 42 drives the connecting member 43 and the friction plate 44 to move in the installation groove 41 based on the inertial effect. The friction plate 44 is decelerated by the friction between the inner wall of the installation groove 41. At the same time, the microcomputer controls the electric telescopic rod 46 to start. The electric telescopic rod 46 drives the fixed block 4 to move, and the moving direction is opposite to the moving direction of the camera 42, so that the camera 42 remains relatively still at the moment of the vehicle collision. Based on the above, the lateral inertial force on the camera 42 at the moment of the vehicle collision is gradually released, and the electric telescopic rod 46 is used to make the position of the camera 42 relative to the detection plate 32 unchanged. Therefore, the camera 42 can better maintain stability when recording the hairpin image, and the recorded image is optimized. It should be pointed out that it is difficult to completely eliminate the vibration of the camera 42 during actual testing.

[0042] The connecting member 43 is specifically an air spring; for different test vehicle speeds, the inertial force generated by the camera 42 is different. Therefore, by adjusting the air pressure in the air spring, the extrusion pressure of the friction plate 44 on the inner wall of the mounting groove 41 can be synchronously regulated, thereby adjusting the friction between the friction plate 44 and the inner wall of the mounting groove 41. The greater the specific test vehicle speed, the greater the friction between the friction plate 44 and the inner wall of the mounting groove 41, so that the acceleration to which the camera 42 is subjected at the moment of impact can effectively decelerate the camera 42 in the mounting groove 41.

[0043] A transparent baffle 45 is provided at the notch of the mounting groove 41; during the test, the hairpin may break and splash when it hits the back, and the transparent baffle 45 can block the splashing hairpin fragments, thereby preventing the camera 42 from being hit by the splashing hairpin fragments and protecting the camera 42.

[0044] like Figures 9 to 11 As shown, a plurality of positioning grooves 5 are provided at the top of the head 3, a magnetic block 51 is fixedly connected to the inner wall of the positioning groove 5, a magnetic rod 52 is inserted into the notch of the positioning groove 5, and the magnetic rod 52 and the magnetic block 51 attract each other; during the test, the magnetic rod 52 is first taken out of the positioning groove 5, and then the inner lining net of the wig is sleeved on the top of the head 3, and then the magnetic rod 52 is placed above the inner lining net and inserted into the positioning groove 5, so that the inner lining net is partially embedded in the positioning groove 5, and the magnetic rod 52 is restricted in the positioning groove 5 by the magnetic force with the magnetic block 51, so that the wig is restricted to the head 3, and then the tail of the wig is fixed and bound to one side of the detection plate 32 by a hairpin, so as to meet the test needs; the wig is matched with the hairpin to make the simulation effect of the test more realistic, which is conducive to improving the test accuracy.

[0045] A second slot body 6 is provided behind the head 3 and above the first slot body 31. A driving roller 61 is rotatably provided inside the second slot body 6. A motor 62 is provided at the end of the driving roller 61. The housing of the motor 62 is partially mounted on the inner wall of the second slot body 6. The output end of the motor 62 is fixedly connected to the end of the driving roller 61. In the test, there is a situation where the head 3 needs to be painted. Specifically, by painting the head 3, the paint of the head 3 will draw a track on the protective bag when it hits, which is convenient for the staff to analyze the force situation of the head 3. The wig cannot be worn any more; therefore, a second slot 6 is provided at the rear of the head 3, and a driving roller 61 is provided inside the second slot 6. The staff puts the top of the wig into the second slot 6 and locates it between the bottom wall of the second slot 6 and the driving roller 61, and then starts the motor 62. The motor 62 drives the driving roller 61 to rotate, and the roller surface of the driving roller 61 drives the wig to move into the second slot 6 and stops when the tail of the wig reaches a suitable position. At this time, the driving roller 61 fixes the wig by friction, which is convenient for subsequent testing.

[0046] A groove is provided on the inner bottom wall of the second trough body 6 and directly below the driving roller 61, and a docking roller 63 is rotatably arranged inside the groove; when the wig enters the second trough body 6, it passes between the driving roller 61 and the docking roller 63. As the driving roller 61 drives the wig to move, the wig moves on the docking roller 63, and the docking roller 63 can rotate synchronously, thereby avoiding damage caused by friction between the wig and the inner wall of the second trough body 6.

[0047] A plurality of inflation grooves are evenly arranged on the side of the driving roller 61; an airbag 64 is arranged inside the inflation groove; after the wig is confined inside the second groove body 6, the airbag 64 in the inflation groove is inflated, and the airbag 64 expands to the outside of the inflation groove, and when the airbag 64 expands, it squeezes the wig inside the second groove body 6, thereby improving the stability of the wig confined in the second groove body 6; it should be pointed out that if the squeezing force of the driving roller 61 on the wig is too large, it will cause damage to the wig, and if the squeezing force is too small, it will be difficult to confine the wig, so the airbag 64 assists in squeezing the wig to avoid damage to the wig, and can ensure the stability of the wig in the second groove body 6.

[0048] A partition 65 is provided between the driving roller 61 and the deepest inner wall of the second trough body 6, and the bottom end of the partition 65 is at the same height as the bottom of the driving roller 61; when the wig enters the second trough body 6 and is driven by the driving roller 61, the end of the partition 65 is located on the side of the driving roller 61, and the wig will enter the bottom end of the partition 65 when moving; the bottom end of the partition 65 restricts the wig to prevent the wig from being entangled on the surface of the driving roller 61, thereby ensuring the normal use of the driving roller 61 and protecting the wig.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle test dummy, characterized in that: The invention comprises a chest (1), a neck (2) is mounted on the top of the chest (1), a head (3) is mounted on the top of the neck (2), a first slot (31) is provided at the rear of the head (3), a pressure sensor (35) is mounted inside the first slot (31), a detection plate (32) is provided at the pressure-receiving end of the pressure sensor (35), a part of the detection plate (32) is embedded in the first slot (31), and the other part is located outside the first slot (31); A plurality of plug-in slots (321) are evenly arranged on one side of the detection plate (32) located outside the first slot body (31); a pair of fixing slots (322) penetrating the plug-in slots (321) are arranged on the upper and lower sides of the detection plate (32); a guide plate (33) is inserted inside the plug-in slot (321); and friction exists between the guide plate (33) and the plug-in slot (321); A pair of fixing blocks (4) are provided through the side of the detection plate (32), and the pair of fixing blocks (4) are symmetrical based on the center of the detection plate (32); one end of the fixing block (4) is located inside the first slot body (31), and the other end is located outside the first slot body (31); an electric telescopic rod (46) is provided at the end of the fixing block (4) located inside the first slot body (31), the housing portion of the electric telescopic rod (46) is mounted on the inner wall of the first slot body (31), and the output end of the electric telescopic rod (46) is connected to the end of the fixing block (4) located inside the first slot body (31); A mounting groove (41) is provided on one side of the fixing block (4) facing the center of the detection plate (32); a camera (42) is arranged inside the mounting groove (41); a camera end of the camera (42) is aligned with the detection plate (32) and is located at the center of one side outside the first groove body (31); a pair of connecting members (43) are provided on the upper and lower sides of the camera (42); a friction plate (44) is provided on one end of the connecting member (43) away from the camera (42); the friction plate (44) is pressed against the inner wall of the mounting groove (41); The connecting member (43) is specifically an air spring; and a transparent baffle (45) is provided at the notch of the installation slot (41).

2. A vehicle test dummy according to claim 1, characterized in that: The guide plate (33) has slots aligned with the fixing slot (322) at the upper and lower ends thereof; a fixing frame (34) is inserted into the fixing slot (322); the fixing frame (34) passes through the fixing slot (322), the plugging slot (321) and the slot.

3. The vehicle test dummy according to claim 1, characterized in that: A plurality of positioning grooves (5) are provided at the top of the head (3); a magnetic block (51) is fixedly connected to the inner wall of the positioning groove (5); a magnetic rod (52) is inserted into the notch of the positioning groove (5); the magnetic rod (52) and the magnetic block (51) attract each other.

4. The vehicle test dummy according to claim 3, characterized in that: A second trough body (6) is provided behind the head (3) and above the first trough body (31); a driving roller (61) is rotatably provided inside the second trough body (6); a motor (62) is provided at the end of the driving roller (61); a housing portion of the motor (62) is mounted on the inner wall of the second trough body (6); and an output end of the motor (62) is fixedly connected to an end of the driving roller (61).

5. The vehicle test dummy according to claim 4, characterized in that: A groove is provided on the inner bottom wall of the second trough body (6) and is located directly below the driving roller (61), and a docking roller (63) is rotatably arranged inside the groove.

6. The vehicle test dummy according to claim 5, characterized in that: A plurality of inflation grooves are evenly arranged on the side surface of the driving roller (61); air bags (64) are arranged inside the inflation grooves.

7. The vehicle test dummy according to claim 6, characterized in that: A partition plate (65) is provided between the driving roller (61) and the deepest inner wall of the second trough body (6), and the bottom end of the partition plate (65) is at the same height as the bottom of the driving roller (61).

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