Dummy protection device for sliding table collision test and use method

Abstract

The invention relates to a dummy protection device for a sliding table collision test and a use method, and relates to the technical field of automobile test auxiliary equipment. The impact cushion is arranged on the mounting bracket in a height-adjustable manner, the impacted surface of the impact cushion is used for colliding with the flying dummy, and the included angle between the impacted surface of the impact cushion and the horizontal plane is adjustable; and the anti-falling net is arranged on the mounting bracket, is positioned on the outer side of the impacted surface of the impact buffer pad, and is used for receiving the dummy collided with the impact buffer pad. The problems that in the prior art, when a restraint system fails and a test dummy flies out and impacts a protective net, the dummy may fall to a rigid table top, long-strip protective belts are installed on the waist, legs and other portions of the dummy, the long-strip protective belts can drag the dummy flying out of the air, but the dummy may still fall to the rigid test table top, and the dummy cannot fall to the rigid test table top are solved. The problem that the structure of the dummy and various types of built-in sensors may be damaged exists in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile test auxiliary equipment, in particular to a dummy protection device for a sliding platform collision test and a use method thereof. BACKGROUND

[0002] In the field of automobile collision testing, dummies are widely used as key testing equipment to simulate the biomechanical response of the human body during a collision. During testing, the dummy is usually fixed to the test platform by a restraint system (such as a seat belt) to ensure that it maintains a predetermined posture during the collision simulation. The restraint system has a risk of failure under extreme conditions (such as high acceleration or system failure), causing the dummy to suddenly fly out.

[0003] In the prior art, protection devices generally use a single structure design. One type is to install a protective net perpendicular to the test platform to prevent the dummy from flying too far and to provide a cushioning effect. Another type is to install a long protective belt on the waist, legs, and other parts of the dummy to ensure that it is pulled when the restraint system fails, preventing the dummy from flying out.

[0004] However, when the restraint system fails and the test dummy hits the protective net, the dummy may fall onto the rigid test platform. When a long protective belt is installed on the waist, legs, and other parts of the dummy, the long protective belt can pull the dummy flying in the air, but it may still fall onto the rigid test platform, both of which may damage the structure of the dummy and the various types of sensors built-in. SUMMARY

[0005] The present application provides a dummy protection device for a sliding platform collision test and a use method, which can solve the problem that in the prior art, when the restraint system fails and the test dummy hits the protective net, the dummy may fall onto the rigid test platform. When a long protective belt is installed on the waist, legs, and other parts of the dummy, the long protective belt can pull the dummy flying in the air, but it may still fall onto the rigid test platform, both of which may damage the structure of the dummy and the various types of sensors built-in.

[0006] In a first aspect, the embodiments of the present application provide a dummy protection device for a sliding platform collision test, which comprises: a mounting bracket; an impact cushion pad adjustably arranged on the mounting bracket, an impact surface of the impact cushion pad being used to collide with the flying dummy, and an angle between the impact surface of the impact cushion pad and a horizontal plane being adjustable; a falling prevention net arranged on the mounting bracket and located outside the impact surface of the impact cushion pad, the falling prevention net being used to receive the dummy after colliding with the impact cushion pad.

[0007] In an embodiment, the mounting bracket comprises: a fixed bracket connected with the fall arrest net; an adjustable bracket rotatably connected with the fixed bracket, and the impact cushion pad is arranged on the adjustable bracket.

[0008] In an embodiment, the fixed bracket comprises two fixed bracket units arranged at intervals, the fixed bracket units are fixedly arranged, the fall arrest net is located between the two fixed bracket units, and the two sides of the fall arrest net are connected with the two fixed bracket units respectively, the adjustable bracket comprises adjustable bracket units corresponding to the fixed bracket units respectively, and the two ends of the impact cushion pad are connected with the two adjustable bracket units respectively.

[0009] In an embodiment, the fixed bracket unit is provided with a first rotation point and a second rotation point, the adjustable bracket unit comprises a connecting mechanism and a connecting rod, the connecting mechanism is rotatably connected with the first rotation point through a pin shaft, the connecting mechanism is slidably connected with the impact cushion pad, the connecting mechanism is provided with a plurality of connecting holes arranged at intervals along the length direction, one end of the connecting rod is rotatably connected with the second rotation point through a pin shaft, and the other end of the connecting rod is rotatably connected with the connecting hole through a pin shaft.

[0010] In an embodiment, the mounting bracket further comprises a connecting assembly corresponding to the adjustable bracket unit, the connecting mechanism is provided with a sliding rail along the length direction, the connecting assembly is slidably arranged on the sliding rail, and the connecting assembly is connected with the impact cushion pad.

[0011] In an embodiment, the connecting assembly comprises: a sliding block slidably arranged on the sliding rail; a mounting clamping groove arranged at intervals with the sliding block; a buffer spring, one end of which is connected with the sliding block, and the other end of which is connected with the mounting clamping groove.

[0012] In an embodiment, the fall arrest net comprises a horizontal fall arrest net and a vertical fall arrest net, and the vertical fall arrest net is located at one end of the horizontal fall arrest net away from the impact cushion pad.

[0013] In an embodiment, the fixed support unit comprises a first vertical support rod, a second vertical support rod, an oblique support rod and a horizontal mounting rod, the first vertical support rod is arranged apart from the second vertical support rod, the oblique support rod is located on a side of the first vertical support rod away from the second vertical support rod and faces the first vertical support rod, the horizontal mounting rod passes through the first vertical support rod and is connected with the second vertical support rod and the oblique support rod at two ends respectively, the first vertical support rod is provided with the first rotation point at an upper end, the oblique support rod is provided with the second rotation point at an upper end, the horizontal arresting net is connected with a part of the horizontal mounting rod between the first vertical support rod and the second vertical support rod, and the vertical arresting net is connected with the second vertical support rod.

[0014] In an embodiment, the arresting net further comprises an oblique arresting net, and the fixed support unit further comprises an oblique arresting net mounting rack, the oblique arresting net mounting rack comprises a straight rod and an inclined rod, one end of the straight rod is connected with the first vertical support rod, one end of the inclined rod is connected with the other end of the straight rod, the other end of the inclined rod is connected with a part of the horizontal mounting rod between the first vertical support rod and the second vertical support rod, the oblique arresting net is connected with the inclined rod, and a lower end of the oblique arresting net is located above a middle part of the horizontal arresting net.

[0015] In a second aspect, the embodiments of the present application further provide a use method of a dummy protection device for a sled crash test, which is implemented by using the dummy protection device for a sled crash test described above, and comprises the following steps: Based on the weight of the dummy, the acceleration of the test and the height of the H point of the dummy from the plane of the sled, the trajectory and the impact force of the dummy flying out are determined; Based on the trajectory and the impact force of the dummy flying out, the height of the impact cushion and the angle between the impact surface of the impact cushion and the horizontal plane are determined.

[0016] The technical scheme provided by the embodiments of the present application has the following beneficial effects: In the design of the dummy protection device for the slide table collision test, the impact cushion pad is adjustably arranged on the mounting bracket, the impact surface of the impact cushion pad is used to collide with the flying dummy, the angle between the impact surface of the impact cushion pad and the horizontal plane is adjustable, the anti-falling net is arranged on the mounting bracket and located outside the impact surface of the impact cushion pad, and the anti-falling net is used to receive the dummy after colliding with the impact cushion pad. In use, based on the weight of the dummy, the acceleration of the test and the horizontal height of the H point of the dummy from the slide table, the trajectory and impact force of the flying dummy are determined; based on the trajectory and impact force of the flying dummy, the height of the impact cushion pad and the angle between the impact surface of the impact cushion pad and the horizontal plane are determined. Through the combined design of the height-adjustable and angle-adjustable impact cushion pad and the anti-falling net, a three-protection mechanism of initial cushioning, transition guiding and final stability is formed. When the restraint system fails to cause the dummy to fly out, the dummy first collides with the impact cushion pad to realize initial energy absorption; then, the dummy is guided to slide smoothly by the anti-falling net, avoiding the problem that the dummy directly collides with the rigid part or falls to the rigid table in the traditional single protection mode, effectively protecting the structural integrity of the dummy and the accuracy of the built-in sensors, and the height-adjustable design of the impact cushion pad enables accurate adjustment according to the flying trajectory of different dummies, ensuring that the dummy can accurately hit the best position of the impact cushion pad under various test conditions, and the adjustable design of the angle between the impact surface of the impact cushion pad and the horizontal plane can accurately adjust the cushioning angle according to different test accelerations. When the test acceleration is large, the angle between the impact cushion pad and the horizontal plane can be increased to prolong the impact time and improve the energy absorption efficiency; when the test acceleration is small, the angle can be reduced to ensure that the dummy can smoothly slide into the anti-falling net, solving the problem that in the prior art, the protective net is installed vertically to the table, when the restraint system fails and the test dummy flies out to collide with the protective net, the dummy may fall to the rigid test table, and the long protective belt installed at the waist, legs and other parts of the dummy can pull the flying dummy in the air, but the dummy may still fall to the rigid test table, which may damage the structure of the dummy and the various types of built-in sensors. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure diagram of an embodiment of the dummy protection device for the slide table collision test.

[0019] Figure 2It is a structure schematic view of the mounting support in the dummy protection device for the sliding table collision test.

[0020] Figure 3 It is a structure schematic view of the adjustable support in the dummy protection device for the sliding table collision test.

[0021] Figure 4 It is a structure schematic view of the impact cushion pad in the dummy protection device for the sliding table collision test.

[0022] In the figure: 1, mounting support; 11, fixed support; 111, first vertical support rod; 112, second vertical support rod; 113, inclined support rod; 114, horizontal mounting rod; 115, inclined anti-falling net mounting rack; 12, adjustable support; 121, connecting mechanism; 1211, sliding rail; 1212, connecting hole; 122, connecting rod; 13, connecting assembly; 131, sliding block; 1311, limiting hole; 132, mounting clamping groove; 133, buffer spring; 2, impact cushion pad; 21, cloth cover; 22, spring; 23, filling sponge; 3, anti-falling net; 31, horizontal anti-falling net; 32, vertical anti-falling net; 33, inclined anti-falling net. DETAILED DESCRIPTION

[0023] In order for those skilled in the art to better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The embodiments of the present application provide a dummy protection device for a sliding table collision test and a use method, which can solve the problem in the prior art that when the restraint system fails and the test dummy hits the protection net, the dummy may fall to the rigid table, and the long protection belt installed at the waist and legs of the dummy can pull the flying dummy in the air, but the dummy may still fall to the rigid test table, and the structure of the dummy and the various types of sensors built-in may be damaged.

[0025] As shown in Figure 1 , in one aspect, the present application provides a dummy protection device for a sliding table collision test, which comprises: a mounting support 1; Impact buffer pad 2 is height-adjustable and mounted on mounting bracket 1. The impact-bearing surface of impact buffer pad 2 is used to collide with the flying dummy. The angle between the impact-bearing surface of impact buffer pad 2 and the horizontal plane is adjustable. The fall protection net 3 is installed on the mounting bracket 1 and is located on the outside of the impact surface of the impact buffer pad 2. The fall protection net 3 is used to receive the dummy after it collides with the impact buffer pad 2.

[0026] In designing this dummy protection device for slide collision tests, the impact buffer pad 2 is height-adjustable and mounted on the mounting bracket 1. The impact-receiving surface of the impact buffer pad 2 is used to collide with the launched dummy. The angle between the impact-receiving surface of the impact buffer pad 2 and the horizontal plane is adjustable. The fall arrestor net 3 is mounted on the mounting bracket 1, located outside the impact-receiving surface of the impact buffer pad 2. The fall arrestor net 3 is used to receive the dummy after colliding with the impact buffer pad 2. During use, the trajectory and impact force of the dummy are determined based on the dummy's weight, the test acceleration, and the height of the dummy's H-point from the plane of the slide. Based on the trajectory and impact force of the dummy, the height of the impact buffer pad 2 and the angle between the impact-receiving surface of the impact buffer pad 2 and the horizontal plane are determined. Through the combined design of the height- and angle-adjustable impact buffer pad 2 and the fall arrestor net 3, a triple protection mechanism of initial buffering, transitional guidance, and final stabilization is formed. When the restraint system fails and the dummy flies out, the dummy first collides with the impact buffer pad 2 to absorb the initial energy. Then, guided by the fall protection net 3, it slides smoothly down, avoiding the problem of the dummy directly hitting rigid components or falling onto a rigid platform in traditional single protection methods. This effectively protects the structural integrity of the dummy and the accuracy of the built-in sensors. Furthermore, the height-adjustable design of the impact buffer pad 2 allows it to be precisely adjusted according to the flight trajectory of different dummy, ensuring that the dummy can accurately hit the optimal position of the impact buffer pad 2 under various test conditions. The adjustable design of the angle between the impact surface of the impact buffer pad 2 and the horizontal plane can precisely adjust the buffer angle for different test accelerations. When the test acceleration is large, the angle between the impact buffer pad 2 and the horizontal plane can be increased to prolong the impact time and improve energy absorption efficiency. When the test acceleration is small, the angle can be reduced to ensure that the dummy can smoothly slide into the fall protection net. This solves the problem that in the existing technology, when a protective net is installed perpendicular to the platform, the dummy may fall onto the rigid platform when the restraint system fails and the test dummy flies out and hits the protective net. Although long protective belts are installed on the waist and legs of the dummy, they can catch the dummy flying out of the air, but there is still a possibility that it may fall onto the rigid test platform. Both of these issues may damage the structure of the dummy and the various types of built-in sensors.

[0027] In this example, for the crash dummy, point H refers to the hinge center of the thigh and torso when the dummy is in a sitting position, which is also the rotation center of the dummy's pelvis. This point is the core reference point for the arrangement of the car seat and the occupant's body.

[0028] like Figure 4 As shown, in this example, the impact buffer pad 2 includes a cloth cover 21, a spring 22 and a filling sponge 23. The cloth cover 21 has a receiving cavity, and the spring 22 and the filling sponge 23 are disposed in the receiving cavity. One end of the spring 22 is connected to the cloth cover 21, and the other end is connected to the filling sponge 23. The filling sponge 23 is located on the side close to the impact surface.

[0029] In this example, increasing the angle between the impact buffer pad 2 and the horizontal plane means that the impact buffer pad 2 is tilted away from the fall protection net 3.

[0030] like Figure 1 As shown, in some optional embodiments, the mounting bracket 1 includes: Fixed bracket 11, which is connected to the fall protection net 3; An adjustable bracket 12 is rotatably connected to a fixed bracket 11, and an impact buffer pad 2 is provided on the adjustable bracket 12.

[0031] In this embodiment, the structure of the mounting bracket 1 is specifically described. The mounting bracket 1 includes a fixed bracket 11 and an adjustable bracket 12. The fixed bracket 11 is connected to the fall arrest net 3, and the adjustable bracket 12 is rotatably connected to the fixed bracket 11. An impact buffer pad 2 is provided on the adjustable bracket 12. The rigid connection between the fixed bracket 11 and the fall arrest net 3 ensures the stability of the entire protection system and provides reliable support for the fall arrest net 3. At the same time, the rotatable connection between the adjustable bracket 12 and the fixed bracket 11 allows the impact buffer pad 2 to be flexibly adjusted in angle. Through the rotatable connection between the adjustable bracket 12 and the fixed bracket 11, the operator can quickly and accurately adjust the angle of the impact buffer pad 2, improving testing efficiency.

[0032] like Figure 1 As shown, in some optional embodiments, the fixed bracket 11 includes two fixed bracket units spaced apart, the fixed bracket units are fixedly installed, the fall protection net 3 is located between the two fixed bracket units and is connected to the two fixed bracket units on both sides respectively, the adjustable bracket 12 includes adjustable bracket units that correspond one-to-one with the fixed bracket units, and the two ends of the impact buffer pad 2 are connected to the two adjustable bracket units respectively.

[0033] In this embodiment, the fixed support 11 includes two spaced-apart fixed support units, which are fixedly installed. The fall protection net 3 is located between the two fixed support units and connected to both fixed support units on its two sides. The adjustable support 12 includes adjustable support units corresponding one-to-one with the fixed support units. The two ends of the impact buffer pad 2 are connected to the two adjustable support units respectively. The two spaced-apart fixed support units provide flexible adaptation space for test dummies of different widths. For test dummies of different sizes, they can be adapted by adjusting the spacing between the two fixed support units and changing the size of the impact buffer pad 2 and the fall protection net 3. The replacement process is simple.

[0034] like Figure 1 and Figure 3 As shown, in some optional embodiments, the fixed support unit is provided with a first rotation point and a second rotation point, and the adjustable support unit includes a connecting mechanism 121 and a connecting rod 122. The connecting mechanism 121 is rotatably connected to the first rotation point by a pin, and the connecting mechanism 121 is slidably connected to the impact buffer pad 2. The connecting mechanism 121 is provided with a plurality of connecting holes 1212 spaced apart along the length direction. One end of the connecting rod 122 is rotatably connected to the second rotation point by a pin, and the other end is rotatably connected to the connecting hole 1212 by a pin.

[0035] In this embodiment, the fixed support unit has a first rotation point and a second rotation point. The adjustable support unit includes a connecting mechanism 121 and a connecting rod 122. The connecting mechanism 121 is rotatably connected to the first rotation point via a pin, and the connecting mechanism 121 is slidably connected to the impact buffer pad 2. The connecting mechanism 121 has a plurality of connecting holes 1212 spaced apart along its length. One end of the connecting rod 122 is rotatably connected to the second rotation point via a pin, and the other end is rotatably connected to the connecting hole 1212 via a pin. Height adjustment is achieved through the slidable connection between the connecting mechanism 121 and the impact buffer pad 2, while angle adjustment is achieved through the cooperation of the connecting rod 122 with different connecting holes 1212, making the two adjustment functions independent and non-interfering with each other. This design avoids the problem of mutual interference between height and angle adjustments. Operators can accurately set the height and angle parameters that are most suitable for the current test conditions, which significantly improves the accuracy and convenience of adjustment. The multiple connecting holes 1212 spaced along the length direction on the connecting mechanism 121 form a multi-level positioning system, which enables the angle adjustment of the impact buffer pad 2 to achieve "gear" control. When the connecting rod 122 is connected to the specific connecting hole 1212 through the pin, a stable triangular support structure is formed, which effectively locks the adjustment position.

[0036] In this example, the connecting rod 122 is a telescopic rod, which further improves the accuracy of angle adjustment of the impact buffer pad 2. The connecting mechanism 121 is provided with five connecting holes 1212.

[0037] likeFigure 1 and Figure 3 As shown, in some optional embodiments, the mounting bracket 1 further includes a connecting component 13 corresponding to the adjustable bracket unit. The connecting mechanism 121 is provided with a slide rail 1211 along the length direction. The connecting component 13 is slidably disposed on the slide rail 1211 and connected to the impact buffer pad 2.

[0038] In this embodiment, the mounting bracket 1 further includes a connecting component 13 corresponding to the adjustable bracket unit. The connecting mechanism 121 has a slide rail 1211 along its length. The connecting component 13 is slidably mounted on the slide rail 1211 and connected to the impact buffer pad 2. Through the sliding design of the connecting component 13 on the slide rail 1211, continuous and smooth adjustment of the height of the impact buffer pad 2 is achieved. The adjustment method is simple, and the cooperative design of the slide rail 1211 and the connecting component 13 provides flexibility in height adjustment while maintaining structural stability. When the connecting component 13 is locked in a specific position, a stable support structure is formed; however, during impact, moderate displacement is allowed to absorb energy.

[0039] like Figure 3 As shown, in some optional embodiments, the connection component 13 includes: A sliding block 131 is slidably disposed on a slide rail 1211; The mounting slot 132 is spaced apart from the sliding block 131; The buffer spring 133 has one end connected to the sliding block 131 and the other end connected to the mounting slot 132.

[0040] In this embodiment, the structure of the connecting component 13 is specifically described. The connecting component 13 includes a sliding block 131, a mounting slot 132, and a buffer spring 133. The sliding block 131 is slidably mounted on the slide rail 1211. The mounting slot 132 is spaced apart from the sliding block 131. One end of the buffer spring 133 is connected to the sliding block 131, and the other end is connected to the mounting slot 132. The buffer spring 133 connects the sliding block 131 and the mounting slot 132, forming a unique dynamic buffering system. When the sliding block 131 is allowed to displace moderately during the impact, and the dummy impacts the impact buffer pad 2, the impact force is transmitted through the mounting slot 132, causing the buffer spring 133 to compress and deform. Simultaneously, the sliding block 131 displaces along the slide rail 1211, effectively prolonging the impact time. The deformation of the buffer spring 133 converts some of the impact energy into stored elastic potential energy, while the movement of the sliding block 131 on the slide rail 1211 dissipates some energy through friction. These two mechanisms work together, making the overall buffering effect far superior to a single buffering method, effectively reducing the peak impact acceleration experienced by the dummy. When the sliding block 131 is locked in a specific position, a stable support structure is formed. At this time, the buffer spring 133 absorbs the impact energy, significantly reducing the peak impact force. Different usage methods can be selected according to different situations.

[0041] In this example, the connecting assembly 13 includes a plurality of buffer springs 133 spaced apart along the length of the sliding block 131. The sliding block 131 is provided with three limiting holes 1311 spaced apart along the length, which are used to cooperate with the limiting pin and the hole reserved on the connecting mechanism 121 to limit the position of the sliding block 131 on the slide rail 1211.

[0042] like Figure 1 and Figure 2 As shown, in some optional embodiments, the fall arrest net 3 includes a horizontal fall arrest net 31 and a vertical fall arrest net 32, with the vertical fall arrest net 32 ​​located at the end of the horizontal fall arrest net 31 away from the impact buffer pad 2.

[0043] In this embodiment, the fall arresting net 3 includes a horizontal fall arresting net 31 and a vertical fall arresting net 32, with the vertical fall arresting net 32 ​​located at the end of the horizontal fall arresting net 31 furthest from the impact buffer pad 2. The combined structure of the horizontal fall arresting net 31 and the vertical fall arresting net 32 ​​forms a horizontal-vertical transition path. The vertical fall arresting net 32, located at the end of the horizontal fall arresting net 31 furthest from the impact buffer pad 2, forms an effective end-blocking structure, preventing the dummy from continuing to fly forward out of the protected area after sliding through the horizontal fall arresting net 31. When the dummy slides into the fall arresting net 3 after being cushioned by the impact buffer pad 2, it can slide smoothly along the horizontal fall arresting net 31, and then the vertical fall arresting net 32 ​​restricts its range of motion, achieving a smooth transition from dynamic to static. This design avoids the problem of the dummy bouncing or falling after direct impact in traditional single vertical protective nets, allowing the dummy to stop more smoothly and effectively protecting the dummy structure and internal sensors.

[0044] like Figure 2 As shown, in some optional embodiments, the fixed support unit includes a first vertical support rod 111, a second vertical support rod 112, an inclined support rod 113, and a horizontal mounting rod 114. The first vertical support rod 111 and the second vertical support rod 112 are spaced apart. The inclined support rod 113 is located on the side of the first vertical support rod 111 away from the second vertical support rod 112 and faces the first vertical support rod 111. The horizontal mounting rod 114 passes through the first vertical support rod 111 and is connected at both ends to the second vertical support rod 112 and the inclined support rod 113, respectively. The upper end of the first vertical support rod 111 is provided with a first rotation point, and the upper end of the inclined support rod 113 is provided with a second rotation point. The horizontal fall protection net 31 is connected to the portion of the horizontal mounting rod 114 located between the first vertical support rod 111 and the second vertical support rod 112. The vertical fall protection net 32 ​​is connected to the second vertical support rod 112.

[0045] In this embodiment, the fixed support unit includes a first vertical support rod 111, a second vertical support rod 112, an inclined support rod 113, and a horizontal mounting rod 114. The first vertical support rod 111 and the second vertical support rod 112 are spaced apart. The inclined support rod 113 is located on the side of the first vertical support rod 111 away from the second vertical support rod 112 and faces the first vertical support rod 111. The horizontal mounting rod 114 passes through the first vertical support rod 111 and is connected at both ends to the second vertical support rod 112 and the inclined support rod 113, respectively. The upper end of the first vertical support rod 111 is provided with a first rotation point, and the upper end of the inclined support rod 113 is provided with a second rotation point. The horizontal fall protection net 31 is connected to the portion of the horizontal mounting rod 114 located between the first vertical support rod 111 and the second vertical support rod 112. The vertical fall protection net 32 ​​is connected to the second vertical support rod 112. The layout, with a first rotation point at the upper end of the first vertical support rod 111 and a second rotation point at the upper end of the diagonal support rod 113, provides precise rotation fulcrums for the adjustable support unit. Furthermore, the multi-rod structure design results in a more uniform stress distribution, avoiding the localized stress concentration problem common in traditional structures. This uniform stress distribution significantly reduces the wear rate of critical components, extends the service life of the device, reduces maintenance frequency and replacement costs, and improves the overall economic efficiency of the device.

[0046] like Figure 1 and Figure 2 As shown, in some optional embodiments, the fall arrest net 3 further includes an inclined fall arrest net 33, and the fixed support unit further includes an inclined fall arrest net mounting bracket 115. The inclined fall arrest net mounting bracket 115 includes a straight rod and an inclined rod. One end of the straight rod is connected to the first vertical support rod 111, and one end of the inclined rod is connected to the other end of the straight rod. The other end of the inclined rod is connected to the portion of the horizontal mounting rod 114 located between the first vertical support rod 111 and the second vertical support rod 112. The inclined fall arrest net 33 is connected to the inclined rod, and the lower end of the inclined fall arrest net 33 is located above the middle of the horizontal fall arrest net 31.

[0047] In this embodiment, the fall arresting net 3 further includes an inclined fall arresting net 33, and the fixed support unit further includes an inclined fall arresting net mounting bracket 115. The inclined fall arresting net mounting bracket 115 includes a straight rod and an inclined rod. One end of the straight rod is connected to the first vertical support rod 111, and one end of the inclined rod is connected to the other end of the straight rod. The other end of the inclined rod is connected to the portion of the horizontal mounting rod 114 located between the first vertical support rod 111 and the second vertical support rod 112. The inclined fall arresting net 33 is connected to the inclined rod, and the lower end of the inclined fall arresting net 33 is located above the middle of the horizontal fall arresting net 31. The inclined fall arresting net 33 serves as a transition area between the impact buffer pad 2 and the horizontal fall arresting net 31, forming a scientific three-level protection path of buffer-inclined surface-horizontal. After the dummy is cushioned by the impact buffer pad 2, it can smoothly slide along the inclined fall arrest net 33 and then transition to the horizontal fall arrest net 31. This avoids the impact caused by the dummy falling directly from the impact buffer pad 2 to the horizontal fall arrest net 31. The design of the lower end of the inclined fall arrest net 33 being located above the middle of the horizontal fall arrest net 31 ensures that the dummy can smoothly transition from the inclined surface to the horizontal surface. The inclined fall arrest net mounting frame 115 adopts a combination structure of straight rods and inclined rods, forming a stable support system with the first vertical support rod 111 and the horizontal mounting rod 114. This design not only provides reliable support for the inclined fall arrest net 33, but also enhances the structural rigidity of the entire protective device and improves its impact resistance.

[0048] like Figure 1 As shown, on the other hand, this application also provides a method of using a dummy protective device for a slide collision test, which is implemented using the above-mentioned dummy protective device for a slide collision test, including the following steps: Based on the dummy's weight, the test acceleration, and the height of the dummy's H point above the slide plane, the trajectory and impact force of the dummy's flight are determined. Based on the trajectory and impact force of the dummy, the height of the impact buffer pad 2 and the angle between the impact surface of the impact buffer pad 2 and the horizontal plane are determined.

[0049] In designing this dummy protection device for slide collision tests, the impact buffer pad 2 is height-adjustable and mounted on the mounting bracket 1. The impact-receiving surface of the impact buffer pad 2 is used to collide with the launched dummy. The angle between the impact-receiving surface of the impact buffer pad 2 and the horizontal plane is adjustable. The fall arrestor net 3 is mounted on the mounting bracket 1, located outside the impact-receiving surface of the impact buffer pad 2. The fall arrestor net 3 is used to receive the dummy after colliding with the impact buffer pad 2. During use, the trajectory and impact force of the dummy are determined based on the dummy's weight, the test acceleration, and the height of the dummy's H-point from the plane of the slide. Based on the trajectory and impact force of the dummy, the height of the impact buffer pad 2 and the angle between the impact-receiving surface of the impact buffer pad 2 and the horizontal plane are determined. Through the combined design of the height- and angle-adjustable impact buffer pad 2 and the fall arrestor net 3, a triple protection mechanism of initial buffering, transitional guidance, and final stabilization is formed. When the restraint system fails and the dummy flies out, the dummy first collides with the impact buffer pad 2 to absorb the initial energy. Then, guided by the fall protection net 3, it slides smoothly down, avoiding the problem of the dummy directly hitting rigid components or falling onto a rigid platform in traditional single protection methods. This effectively protects the structural integrity of the dummy and the accuracy of the built-in sensors. Furthermore, the height-adjustable design of the impact buffer pad 2 allows it to be precisely adjusted according to the flight trajectory of different dummy, ensuring that the dummy can accurately hit the optimal position of the impact buffer pad 2 under various test conditions. The adjustable design of the angle between the impact surface of the impact buffer pad 2 and the horizontal plane can precisely adjust the buffer angle for different test accelerations. When the test acceleration is large, the angle between the impact buffer pad 2 and the horizontal plane can be increased to prolong the impact time and improve energy absorption efficiency. When the test acceleration is small, the angle can be reduced to ensure that the dummy can smoothly slide into the fall protection net. This solves the problem that in the existing technology, when a protective net is installed perpendicular to the platform, the dummy may fall onto the rigid platform when the restraint system fails and the test dummy flies out and hits the protective net. Although long protective belts are installed on the waist and legs of the dummy, they can catch the dummy flying out of the air, but there is still a possibility that it may fall onto the rigid test platform. Both of these issues may damage the structure of the dummy and the various types of built-in sensors.

[0050] In this example, the angle between the impact-bearing surface of the impact buffer pad 2 and the horizontal plane can be divided into five levels according to the five connecting holes 1212. The angle range is from 85° to 105°, divided into five levels, with an angle difference of 5° between each level. The height of the impact buffer pad 2 can be divided into three levels according to the three limiting holes 1311, from top to bottom, with a distance difference of 150mm between each level. The adjustment levels can be obtained from the table below:

[0051] In this example, depending on the standard, the adjustment level can also be obtained from the following table:

[0052] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0053] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A dummy protective device for slide collision tests, characterized in that, include: Mounting bracket (1); Impact buffer pad (2), which is height-adjustable on the mounting bracket (1), the impact surface of the impact buffer pad (2) is used to collide with the flying dummy, and the angle between the impact surface of the impact buffer pad (2) and the horizontal plane is adjustable. A fall arresting net (3) is installed on the mounting bracket (1) and the fall arresting net (3) is located outside the impact surface of the impact buffer pad (2). The fall arresting net (3) is used to receive the dummy after it collides with the impact buffer pad (2).

2. The dummy protective device for slide collision testing as described in claim 1, characterized in that, The mounting bracket (1) includes: A fixed bracket (11) is connected to the fall protection net (3); An adjustable bracket (12) is rotatably connected to the fixed bracket (11), and the adjustable bracket (12) is provided with the impact buffer pad (2).

3. The dummy protective device for slide collision testing as described in claim 2, characterized in that, The fixed support (11) includes two fixed support units spaced apart. The fixed support units are fixedly installed. The fall protection net (3) is located between the two fixed support units and is connected to the two fixed support units on both sides. The adjustable support (12) includes adjustable support units that correspond one-to-one with the fixed support units. The two ends of the impact buffer pad (2) are connected to the two adjustable support units on both sides.

4. The dummy protective device for slide collision testing as described in claim 3, characterized in that, The fixed support unit is provided with a first rotation point and a second rotation point. The adjustable support unit includes a connecting mechanism (121) and a connecting rod (122). The connecting mechanism (121) is rotatably connected to the first rotation point by a pin. The connecting mechanism (121) is slidably connected to the impact buffer pad (2). The connecting mechanism (121) is provided with a plurality of connecting holes (1212) spaced apart along the length direction. One end of the connecting rod (122) is rotatably connected to the second rotation point by a pin, and the other end is rotatably connected to the connecting hole (1212) by a pin.

5. A dummy protective device for slide collision testing as described in claim 4, characterized in that, The mounting bracket (1) also includes a connecting component (13) corresponding to the adjustable bracket unit. The connecting mechanism (121) is provided with a slide rail (1211) along the length direction. The connecting component (13) is slidably disposed on the slide rail (1211) and connected to the impact buffer pad (2).

6. The dummy protective device for slide collision testing as described in claim 5, characterized in that, The connection component (13) includes: A sliding block (131) is slidably disposed on the slide rail (1211); The mounting slot (132) is spaced apart from the sliding block (131); A buffer spring (133) is connected at one end to the sliding block (131) and at the other end to the mounting slot (132).

7. A dummy protective device for slide collision testing as described in claim 4, characterized in that, The fall protection net (3) includes a horizontal fall protection net (31) and a vertical fall protection net (32), with the vertical fall protection net (32) located at the end of the horizontal fall protection net (31) away from the impact buffer pad (2).

8. The dummy protective device for slide collision testing as described in claim 7, characterized in that, The fixed support unit includes a first vertical support rod (111), a second vertical support rod (112), an inclined support rod (113), and a horizontal mounting rod (114). The first vertical support rod (111) and the second vertical support rod (112) are spaced apart. The inclined support rod (113) is located on the side of the first vertical support rod (111) away from the second vertical support rod (112) and faces the first vertical support rod (111). The horizontal mounting rod (114) passes through the first vertical support rod. The first vertical support rod (111) is connected to the second vertical support rod (112) and the diagonal support rod (113) at both ends respectively. The first vertical support rod (111) has the first rotation point at its upper end, and the diagonal support rod (113) has the second rotation point at its upper end. The horizontal fall protection net (31) is connected to the horizontal installation rod (114) at the part located between the first vertical support rod (111) and the second vertical support rod (112). The vertical fall protection net (32) is connected to the second vertical support rod (112).

9. A dummy protective device for a slide collision test as described in claim 8, characterized in that, The fall arresting net (3) also includes an inclined fall arresting net (33), and the fixed support unit also includes an inclined fall arresting net mounting frame (115). The inclined fall arresting net mounting frame (115) includes a straight rod and an inclined rod. One end of the straight rod is connected to the first vertical support rod (111), and one end of the inclined rod is connected to the other end of the straight rod. The other end of the inclined rod is connected to the portion of the horizontal mounting rod (114) located between the first vertical support rod (111) and the second vertical support rod (112). The inclined fall arresting net (33) is connected to the inclined rod, and the lower end of the inclined fall arresting net (33) is located above the middle of the horizontal fall arresting net (31).

10. A method of using a dummy protective device for a slide collision test, characterized in that, The procedure, performed using a dummy protective device for a slide collision test as described in any one of claims 1-9, includes the following steps: Based on the dummy's weight, the test acceleration, and the height of the dummy's H point above the slide plane, the trajectory and impact force of the dummy's flight are determined. Based on the trajectory and impact force of the dummy, the height of the impact buffer pad (2) and the angle between the impact surface of the impact buffer pad (2) and the horizontal plane are determined.

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