CN112611533A

CN112611533A - APLI impact test leg type protection device and system

Info

Publication number: CN112611533A
Application number: CN202011410811.0A
Authority: CN
Inventors: 董文楷; 田涌君; 易爱斌; 宋冬冬; 周斌; 白果; 王瑞庭; 赵岩岩
Original assignee: China Automotive Changzhou Engineering Research Institute Co ltd
Current assignee: China Automotive Changzhou Engineering Research Institute Co ltd
Priority date: 2020-12-06
Filing date: 2020-12-06
Publication date: 2021-04-06

Abstract

The invention provides a leg type protection device and system based on APLI impact test, which comprises a mobile platform, a baffle plate assembly and a guard plate assembly, wherein the baffle plate assembly is arranged above the mobile platform and is used for blocking and protecting rebounding generated after leg type impact; the guard plate assembly is arranged around the baffle plate assembly and used for limiting the range of leg-type flying; the mobile platform can drive the baffle assembly and the guard plate assembly to move so as to adjust the distance between the protection device and the leg type impact position. The mobile platform can drive the baffle assembly and the guard plate assembly to move so as to adjust the distance between the baffle assembly and the leg type. The protection device with the guard plate is adopted, so that the protection range of the leg type is enlarged, and the test safety is improved.

Description

APLI impact test leg type protection device and system

Technical Field

The invention relates to the technical field of APLI impact testing devices, in particular to an APLI impact testing leg-type protection device and system.

Background

APLI impact test is required for automobile pedestrian protection, the situation that an automobile impacts the legs of a person is simulated, and the pedestrian protection performance of an automobile safety system is evaluated through a leg type injury value. In the test, the principle of relative motion is utilized, and the leg shape is shot by the emitter at a certain speed to impact on the automobile so as to simulate the impact of the automobile on the legs of a person. After the impact, the leg shape is rebounded by the impact force, so that the leg shape bounces or flies, personnel or equipment are easily damaged, and potential safety hazards exist. In addition, leg bounce can cause leg damage if it falls on a stiffer article, increasing the cost of the test. Therefore, it is necessary to develop a protection device capable of achieving protection and well protecting a leg.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects in the prior art, the invention provides an APLI impact test leg-type protection device and system.

The technical scheme adopted for solving the technical problems is as follows: a leg type protection device based on an APLI impact test comprises a mobile platform, a baffle plate assembly and a guard plate assembly, wherein the baffle plate assembly is arranged above the mobile platform and is used for blocking and protecting rebounding generated after leg type impact; the guard plate assembly is arranged around the baffle plate assembly and used for limiting the range of leg-type flying, and protection of testing equipment and personnel is achieved. Because the impact test can have different speeds, consequently the bounce height of leg type also is different, consequently, in order to make things convenient for the effective protection scope of adjusting protector, moving platform can drive baffle subassembly and backplate subassembly motion to the distance between adjusting protector and the leg type striking position.

Further, the baffle plate assembly comprises a left folding baffle plate, a left folding cylinder, a right folding baffle plate, a right folding cylinder and a baffle plate frame, wherein a window for installing the folding baffle plate is arranged in the middle of the baffle plate frame, the left folding baffle plate and the right folding baffle plate are respectively and foldably installed in the window of the baffle plate frame, and when the baffle plate is unfolded, the left folding baffle plate and the right folding baffle plate are both in a V shape; the left folding baffle is connected with the left folding cylinder and used for folding and unfolding the left folding baffle; the right folding baffle is connected with the right folding cylinder and used for folding and unfolding the right folding baffle. The shape of the baffle plate and the baffle plate frame can be set arbitrarily according to the requirement, and the baffle plate frame comprise but are not limited to rectangle, circle, ellipse or polygon and the like. The size of the window on the baffle plate frame needs to meet the requirement that the leg shape can pass through smoothly; the baffle adopts the foldable requirement that can satisfy in the short time closed.

Further, in order to improve the buffering effect and protect the leg, sponge pads are arranged on the outer sides of the left folding baffle and the right folding baffle.

Further, in order to improve the strength and the stability of the baffle frame, the baffle assembly further comprises a frame support frame, preferably, the frame support frame is a triangular support, the triangular support is fixedly connected with the baffle frame, and the triangular support is arranged on one side of the baffle frame, which is back to the baffle frame and generates collision. The frame support frame sets up at the back, has the supporting role to the baffle frame during striking, can submit the steadiness of baffle frame.

Further, the backplate subassembly includes upper guard plate, left backplate and right backplate, upper guard plate sets up the top at the baffle frame, left side backplate and right backplate set up respectively in the left and right sides of baffle frame, and upper guard plate, left backplate and right backplate all turn over certain angle towards the striking side of leg type. A shield space is formed by enclosing, and the leg-shaped part can be limited to fly upwards or towards the left side and the right side.

Further, in order to improve the buffering effect and protect the leg type, the outer sides of the upper guard plate, the left guard plate and the right guard plate are wrapped with sponge protection pads. Preferably, the guard plates in the three directions are made of aluminum alloy so as to ensure the rigidity requirement of the impact.

Further, in order to facilitate the adjustment of the position of the moving platform, the moving platform comprises a rack and wheels installed below the rack, and the baffle plate assembly is fixed on the upper surface of the rack. Preferably, the wheels are universal wheels with brakes.

Further, in order to realize the automatic control of the protection device, the protection device further comprises a PLC controller, and the PLC controller is used for controlling the baffle plate assembly to be closed before the leg rebounds. The PLC is in signal connection with the left folding cylinder and the right folding cylinder and used for controlling the cylinders to pull the baffle to slide in the baffle frame, and the baffle is closed and opened.

An APLI impact test system comprises the protection device, a leg type, a transmitter and a test automobile, wherein the leg type is used for simulating human legs and is arranged on the transmitter; the emitter is used for ejecting the leg shape at a certain speed and impacting the leg shape on a test automobile; the protection device is used for blocking the bouncing leg type so as to protect the safety of personnel and equipment. The leg shape is provided with a sensor to detect the damage value generated during the impact, and the performance of protecting the automobile and the pedestrian is judged according to the damage value.

The invention has the beneficial effects that: according to the APLI impact test leg-shaped protection device and system provided by the invention, the protection device provided with the protection plate is adopted, the protection range of the leg-shaped is expanded, and the test safety is improved.

Drawings

The invention is further illustrated by the following figures and examples.

FIG. 1 is a schematic diagram of the APLI impact testing system of the present invention.

Fig. 2 is a schematic structural diagram of an APLI impact testing leg guard of the present invention.

Fig. 3 is a schematic structural view of an APLI impact testing leg guard of the present invention.

In the figure: 100. the protection device comprises a protection device body, 200, a transmitter, 300, a leg type, 1, a PLC (programmable logic controller), 2, a rack, 3, wheels, 4, a left folding baffle, 5, a left folding cylinder, 6, a right folding baffle, 7, a right folding cylinder, 8, a baffle frame, 9, a left frame support frame, 10, a right frame support frame, 11, a window, 12, an upper protection plate, 13, a left protection plate, 14 and a right protection plate.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

As shown in fig. 1, an APLI impact testing system of the present invention includes an APLI impact testing leg guard 100, a leg 300, a transmitter 200 and a test car (not shown in the figure), wherein the leg 300 and the test car are located at two sides of the guard 100, and the leg 300 is used for simulating a human leg and is disposed on the transmitter 200; the emitter 200 is used for ejecting the leg 300 at a certain speed and impacting the leg on a test automobile; the guard 100 is used to block the bouncing leg 300 to protect people and equipment. The leg 300 is provided with a sensor to detect a damage value generated upon impact, and the performance of pedestrian protection of the automobile is judged by the damage value.

As shown in fig. 2 and 3, the APLI impact test leg type protection device 100 includes a PLC controller 1, a moving platform, a barrier assembly and a shield assembly, the PLC controller 1 is disposed on the shield assembly for controlling the barrier assembly to close before the leg type 300 rebounds; the baffle plate assembly is arranged above the mobile platform and is used for blocking and protecting the rebounding of the leg type 300 after the impact; the guard plate assembly is arranged around the baffle plate assembly and used for limiting the flying range of the leg type 300 and protecting test equipment and personnel. Since the impact test has different speeds, the rebound heights of the leg 300 are different, and therefore, in order to adjust the effective protection range of the protection device 100, the moving platform can drive the baffle assembly and the guard assembly to move so as to adjust the distance between the impact positions of the protection device 100 and the leg 300.

Wherein, the mobile platform comprises a rack 2 and wheels 3 arranged below the rack 2, and the baffle plate component is fixed on the upper surface of the rack 2. In order to adjust the position of the mobile platform and ensure the stable position of the protection device 100 during the test, the wheels 3 are preferably universal wheels with brakes.

The baffle plate assembly comprises a left folding baffle plate 4, a left folding cylinder 5, a right folding baffle plate 6, a right folding cylinder 7, a baffle plate frame 8, a left frame supporting frame 9 and a right frame supporting frame 10, wherein the left frame supporting frame 9 and the right frame supporting frame 10 are used for the strength and the stability of the baffle plate frame 8 and are respectively arranged on the left side and the right side of the baffle plate frame 8; preferably, the left frame support 9 and the right frame support 10 are both triangular supports, the triangular supports are fixedly connected with the baffle frame 8, and the triangular supports are arranged on one side of the baffle frame 8, which is back to the side where collision occurs. The frame support frame sets up at the back, has the supporting role to baffle frame 8 during the striking, can submit baffle frame 8's steadiness. A window 11 for installing a folding baffle is arranged in the middle of the baffle frame 8, the left folding baffle 4 and the right folding baffle 6 are respectively and foldably installed in the window 11 of the baffle frame 8, and when the baffle frame is unfolded, the left folding baffle 4 and the right folding baffle 6 are both in a V shape; the left folding baffle 4 is connected with a left folding cylinder 5 and used for folding and unfolding the left folding baffle 4; the right folding baffle 6 is connected with a right folding cylinder 7 for folding and unfolding the right folding baffle 6. The shape of the baffle plate and the baffle plate frame 8 can be set arbitrarily as required, including but not limited to rectangle, circle, ellipse or polygon, etc., in this embodiment, for convenience of installation, it is preferable that the baffle plate frame 8 is rectangular, and the window 11 in the middle is also rectangular; the baffle is also of a rectangular structure. The size of the window 11 on the baffle frame 8 needs to meet the requirement of enabling the leg 300 to pass through smoothly; the baffle adopts the foldable requirement that can satisfy in the short time closed. The PLC controller 1 is in signal connection with the left folding cylinder 5 and the right folding cylinder 7 and used for controlling the cylinders to pull the baffle to slide in the baffle frame 8, and the baffle is closed and opened. In order to improve the buffering effect and protect the leg 300, sponge pads are arranged on the outer sides of the left folding baffle 4 and the right folding baffle 6.

The backplate subassembly includes upper guard plate 12, left backplate 13 and right backplate 14, upper guard plate 12 sets up the top at baffle frame 8, left side backplate 13 and right backplate 14 set up respectively in the left and right sides of baffle frame 8, and upper guard plate 12, left backplate 13 and right backplate 14 all turn over certain angle towards the striking side of leg type 300. A shield space is formed to limit the leg 300 from flying upwards or towards the left and right sides. In order to improve the buffering effect and protect the leg 300, the outer sides of the upper guard plate 12, the left guard plate 13 and the right guard plate 14 are all wrapped with sponge pads. Preferably, the guard plates in the three directions are made of aluminum alloy so as to ensure the rigidity requirement of the impact.

Further, the working process is as follows:

when the test is started, the left folding baffle 4 and the right folding baffle 6 are in an open state, then the leg 300 is installed on the emitter 200, the emitting speed of the emitter 200 is set, the leg 300 is emitted at a certain test speed, the leg 300 passes through the window 11 of the baffle frame 8, and then the leg 300 impacts on the test automobile on the other side; meanwhile, after the leg 300 passes through the window 11 of the baffle frame 8, the PLC 1 controls the left folding cylinder 5 and the right folding cylinder 7 to respectively close the left folding baffle 4 and the right folding baffle 6; the leg 300 is caught by the closed left folding flap 4 and right folding flap 6 and the guard plates provided around the leg after it hits the test car and bounces off the test car, thereby preventing the leg 300 from flying too high or bouncing out of the guard device 100.

In light of the foregoing description of preferred embodiments in accordance with the invention, it is to be understood that numerous changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an APLI impact testing leg type protector which characterized in that: the leg type impact rebound device comprises a mobile platform, a baffle plate assembly and a guard plate assembly, wherein the baffle plate assembly is arranged above the mobile platform and is used for blocking and protecting the rebound after leg type impact; the guard plate assembly is arranged around the baffle plate assembly and used for limiting the range of leg-type flying; the moving platform can drive the baffle plate assembly and the guard plate assembly to move so as to adjust the distance between the protection device and the leg type impact position.

2. The APLI impact testing leg shield of claim 1, wherein: the baffle plate assembly comprises a left folding baffle plate, a left folding cylinder, a right folding baffle plate, a right folding cylinder and a baffle plate frame, wherein a window for mounting the folding baffle plate is arranged in the middle of the baffle plate frame, the left folding baffle plate and the right folding baffle plate are respectively and foldably mounted in the window of the baffle plate frame, and the left folding baffle plate and the right folding baffle plate are both V-shaped when being unfolded; the left folding baffle is connected with the left folding cylinder and used for folding and unfolding the left folding baffle; the right folding baffle is connected with the right folding cylinder and used for folding and unfolding the right folding baffle.

3. The APLI impact testing leg shield of claim 2, wherein: sponge protection pads are arranged on the outer sides of the left folding baffle and the right folding baffle.

4. The APLI impact testing leg shield of claim 2, wherein: the baffle plate assembly further comprises a frame support frame, wherein the frame support frame is fixedly connected with the baffle plate frame and arranged on one side of the baffle plate frame, which is back to the baffle plate frame and generates collision.

5. The APLI impact testing leg shield of claim 1, wherein: the guard plate assembly comprises an upper guard plate, a left guard plate and a right guard plate, the upper guard plate is arranged above the baffle frame, the left guard plate and the right guard plate are respectively arranged on the left side and the right side of the baffle frame, and the upper guard plate, the left guard plate and the right guard plate are turned over towards the impact side of the leg type by a certain angle.

6. The APLI impact testing leg shield of claim 5, wherein: the outer sides of the upper guard plate, the left guard plate and the right guard plate are wrapped with sponge protection pads.

7. The APLI impact testing leg shield of claim 1, wherein: the mobile platform comprises a rack and wheels arranged below the rack, and the baffle plate assembly is fixed on the upper surface of the rack.

8. The APLI impact testing leg shield of claim 1, wherein: and the PLC is used for controlling the baffle plate assembly to be closed before the leg rebounds.

9. An APLI impact testing system, characterized in that: the protective device comprises the protective device of any one of claims 1 to 8, and further comprises a leg shape, a transmitter and a test automobile, wherein the leg shape is used for simulating a human leg and is arranged on the transmitter; the emitter is used for ejecting the leg shape at a certain speed and impacting the leg shape on a test automobile; the protection device is used for blocking the bouncing leg type so as to protect the safety of personnel and equipment.