CN210638900U - Automatic protection device for pedestrian protection flexible leg test - Google Patents
Automatic protection device for pedestrian protection flexible leg test Download PDFInfo
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- CN210638900U CN210638900U CN201921140153.0U CN201921140153U CN210638900U CN 210638900 U CN210638900 U CN 210638900U CN 201921140153 U CN201921140153 U CN 201921140153U CN 210638900 U CN210638900 U CN 210638900U
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- guard
- protective
- protection
- flexible leg
- door
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Abstract
The utility model relates to an automatic protection device for testing the flexible legs of pedestrians, which consists of a main body protection mechanism and a protection door, wherein the main body protection mechanism comprises a left protective guard, a middle protective guard and a right protective guard which are connected in sequence, and the middle part of the middle protective guard is provided with a door frame for the flexible legs for testing to pass through; the protective door comprises a main moving protective plate, a slave moving protective plate, an execution rod and an air cylinder, wherein the main moving protective plate and the slave moving protective plate are located in the door frame, and the air cylinder drives the protective door to be opened or closed relative to the door frame through the execution rod. The protection device can effectively protect the emitter and the flexible legs through the matching action of the main body protection mechanism and the protection door positioned in the middle of the main body protection mechanism, is convenient to operate, is durable and reliable, and saves cost.
Description
Technical Field
The utility model belongs to the passive safe pedestrian collision protection field of car especially relates to an automatic protector for flexible leg test of pedestrian protection, and in the flexible leg test of pedestrian protection, the device can effectively prevent because of the damage of flexible leg transmitter of pedestrian protection and flexible leg self that flexible leg bounce-back caused.
Background
Automobile pedestrian protection performance is increasingly valued by various large host factories and scientific research institutions since the 2018 version CNCAP (China New Car Association program) evaluation system is formally introduced into the pedestrian protection evaluation regulation. The flexible leg is used as a subsystem of a pedestrian protection performance evaluation rule for the collision of a front bumper of a vehicle, and is widely tested, researched, developed and verified. However, in the test, the flexible leg in the free-fly state, after a collision with the vehicle, is generally free to rebound and the direction of rebound is not controlled (in relation to the front styling and structure of the vehicle) due to the lack of restraint. If this process does not have effective safeguard measure, damage pedestrian's protection flexible leg type transmitter and flexible leg self very likely, the utility model discloses be the improvement of going on the basis of above-mentioned technical problem promptly.
Disclosure of Invention
The utility model aims at providing an automatic protector for pedestrian protects flexible leg test, through the main part protection machanism and be located the cooperation between the guard gate at its middle part, can effectively protect transmitter and flexible leg self, convenient operation, it is durable reliable, practice thrift the cost.
In order to solve the technical problem, the utility model discloses a technical scheme is:
an automatic protection device for a pedestrian protection flexible leg test is composed of a main body protection mechanism and a protection door, wherein the main body protection mechanism comprises a left protective guard, a middle protective guard and a right protective guard which are sequentially connected, the left protective guard and the middle protective guard and the right protective guard are hinged through hinges, and a door frame for a flexible leg for the test to pass through is arranged in the middle of the middle protective guard;
the protective door includes the main fender that removes, removes from removing guard plate, executive rod and cylinder, the main fender that removes, from removing the guard plate and being located in the door frame, the main fender that removes with from removing between the guard plate, and all articulated through the hinge from removing between guard plate and the door frame, the piston rod and the executive rod fixed connection of cylinder, the free end of executive rod with the main fender back border that removes department is articulated, the cylinder drives through the executive rod the protective door is relative the door frame is opened or is closed.
Further, the cylinder is electrically connected with a power switch, the power switch is located in the electrical appliance box, and the electrical appliance box is fixedly arranged on the back face of the right protective guard.
Furthermore, the back of the door frame is fixedly provided with a support used for supporting the cylinder.
Furthermore, the back surfaces of the left guard rail, the middle guard rail and the right guard rail are connected with support frames enabling the guard rails to stand vertically.
Furthermore, a plurality of universal casters are arranged at the bottom of the support frame.
Further, the main moving protection plate is hinged with the auxiliary moving protection plate through a spring hinge.
The utility model has the advantages of it is following and beneficial effect:
(1) in the process of a pedestrian flexible leg protection test, the emitter and the flexible leg are effectively protected, the operation is convenient, the durability and the reliability are realized, and the cost is saved;
(2) the device can close the protective door within 300ms after receiving the trigger signal of the flexible leg to prevent the flexible leg from directly contacting with the emitter, thereby protecting the flexible leg and the emitter; the closing time range of the protective door is 150 ms-300 ms, and the protective door can be adjusted according to the pressure of an input air source.
Drawings
FIG. 1 is a schematic front view of a protection device in an embodiment;
FIG. 2 is a schematic diagram of a back structure of the shielding device in the embodiment;
FIG. 3 is a schematic structural diagram of a protective door according to an embodiment;
FIG. 4 is a schematic structural view of a general hinge in the embodiment;
FIG. 5 is a schematic structural view of a spring hinge according to an embodiment;
FIG. 6 is a schematic diagram showing the relative positions of the emitter, the flexible legs, the guard device and the test vehicle in the embodiment.
In the figure: A. an impact system; B. a transmitter; C. a flexible leg; D. a guard; E. testing the vehicle; 1. a left guard rail; 2. a middle guard rail; 3. a right guard rail; 4. a main moving guard plate; 5. from the moving fender; 6. an actuating lever; 7. a cylinder; 8. a support; 9. a support frame; 10. a universal caster; 11. a hinge; 12. a door frame; 13. a power switch; 14. an electric appliance box.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
An automatic protection device for a pedestrian protection flexible leg test is composed of a main body protection mechanism and a protection door, wherein the main body protection mechanism comprises a left protective guard 1, a middle protective guard 2 and a right protective guard 3 which are sequentially connected, the left protective guard 1 and the middle protective guard 2 and the right protective guard 3 are hinged through hinges 11, the left protective guard 1 and the middle protective guard 2 and the right protective guard 3 can rotate at any angle between 0-90 degrees, and a door frame 12 for a flexible leg C for testing to pass through is arranged in the middle of the middle protective guard 2;
the protective door comprises a main moving protective plate 4, a secondary moving protective plate 5, an execution rod 6 and an air cylinder 7, wherein the main moving protective plate 4 and the secondary moving protective plate 5 are positioned in a door frame 12, the main moving protective plate 4 and the secondary moving protective plate 5 are hinged with each other and the secondary moving protective plate 5 is hinged with the door frame 12 through hinges 11, a piston rod of the air cylinder 7 is fixedly connected with the execution rod 6, the free end of the execution rod 6 is hinged with the edge of the back face of the main moving protective plate 4, and the air cylinder 7 drives the protective door to open or close relative to the door frame 12 through the execution rod 6; when the door is in an open state, the air cylinder 7 drives the main moving protection plate 4 and the auxiliary moving protection plate 5 to be folded relative to the door frame 12; when the door is closed, the cylinder 7 drives the main moving protection plate 4 and the auxiliary moving protection plate 5 to close relative to the door frame 12.
The cylinder 7 is electrically connected with a power switch 13, the power switch 13 is positioned in the electrical box 14, the electrical box 14 is fixedly riveted on the back surface of the right protective guard 3, and the power switch 13 is preferably a Mingmei switch power supply monitoring S-25-24 type product; the cylinder 7 is preferably of type SE40 × 350S.
The back of the door frame 12 is riveted with a bracket 8 for supporting the cylinder 7.
The back surfaces of the left guard rail 1, the middle guard rail 2 and the right guard rail 3 are respectively connected with a support frame 9 which enables the guard rails to be erected along the vertical direction, the bottom of each support frame 9 is provided with a plurality of universal casters 10, and the universal casters 10 have braking functions.
The hinge 11 between the main moving protection plate 4 and the auxiliary moving protection plate 5 is a spring hinge (the other hinges are common hinges in this embodiment), and under the action of the spring hinge and the air cylinder 7, the main moving protection plate 4 and the auxiliary moving protection plate 5 are folded relative to the door frame 12, that is, the protection door of the whole protection device D is opened relative to the middle protection fence 2, and the flexible leg C can reach the position of the test vehicle E through the door frame 12 and collide with the test vehicle E, thereby completing the experiment.
The specific implementation process is as follows: the pedestrian protection flexible leg test speed was 40km/h, i.e. 11.11 mm/ms. The distance between the flexible leg and the front end of the test vehicle E is 1460mm before the test, the emitter B slides for 450mm under the action of the impact system A, the flexible leg C is accelerated by 11.11mm/ms from a static state, then the flexible leg C is separated from the emitter B, and the flexible leg C freely flies for 1100mm and then impacts the front end of the test vehicle E. The guard D is located between the transmitter B of the pedestrian protection flexible leg and the test vehicle E (typically the guard is located 800mm from the front of the test vehicle), and the power switch 13 of the guard D is able to recognise the pedestrian protection impact system trigger signal. Before the test, the main movable protection plate 4 and the auxiliary movable protection plate 5 are folded relative to the door frame through the execution rod 6 and the air cylinder 7 and are in an open state, the air cylinder 7 needs to be connected to an external air source, and the input pressure is 0.2 MPa. At the moment of the test of the flexible leg, the protection device D is triggered, in order to ensure the test safety, the main moving protection plate 4 executes the closing action after the flexible leg C completely passes through the middle protective guard 2 according to the actual test requirement, the closing time of the main moving protection plate 4 can be set to be 250ms after the protection device D is triggered, and the main moving protection plate 4 needs to complete the closing action within 300ms after the protection device D is triggered. After the closing action is finished, the whole protection device D forms a screen, and the damage caused by the rebound of the flexible legs C can be avoided.
The above detailed description of one embodiment of the present invention is only for the purpose of illustrating the preferred embodiments of the present invention, and should not be taken as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should be covered by the patent of the present invention.
Claims (6)
1. An automatic protection device for a pedestrian protection flexible leg test is characterized by comprising a main body protection mechanism and a protection door, wherein the main body protection mechanism comprises a left protective guard, a middle protective guard and a right protective guard which are sequentially connected, the left protective guard and the middle protective guard and the right protective guard are hinged through hinges, and a door frame for a flexible leg for the test to pass through is arranged in the middle of the middle protective guard;
the protective door includes the main fender that removes, removes from removing guard plate, executive rod and cylinder, the main fender that removes, from removing the guard plate and being located in the door frame, the main fender that removes with from removing between the guard plate, and all articulated through the hinge from removing between guard plate and the door frame, the piston rod and the executive rod fixed connection of cylinder, the free end of executive rod with the main fender back border that removes department is articulated, the cylinder drives through the executive rod the protective door is relative the door frame is opened or is closed.
2. The automatic protective device for the pedestrian protection flexible leg test according to claim 1, wherein the air cylinder is electrically connected with a power switch, the power switch is positioned in an electrical box, and the electrical box is fixedly arranged on the back surface of the right protective guard.
3. The automatic protection device for the pedestrian protection flexible leg test according to claim 1, wherein a support for supporting the air cylinder is fixedly arranged on the back surface of the door frame.
4. The automatic protective device for the pedestrian protection flexible leg test according to claim 1, wherein a support frame for vertically erecting the left guard rail, the middle guard rail and the right guard rail is connected to the back of each of the left guard rail, the middle guard rail and the right guard rail.
5. The automatic protection device for the pedestrian protection flexible leg test according to claim 4, wherein a plurality of universal casters are arranged at the bottom of the support frame.
6. The automatic safety device for the pedestrian protection flexible leg test according to claim 1, wherein the main moving protection plate is hinged with the auxiliary moving protection plate through a spring hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140153.0U CN210638900U (en) | 2019-07-19 | 2019-07-19 | Automatic protection device for pedestrian protection flexible leg test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921140153.0U CN210638900U (en) | 2019-07-19 | 2019-07-19 | Automatic protection device for pedestrian protection flexible leg test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210638900U true CN210638900U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921140153.0U Expired - Fee Related CN210638900U (en) | 2019-07-19 | 2019-07-19 | Automatic protection device for pedestrian protection flexible leg test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210638900U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304638A (en) * | 2020-10-30 | 2021-02-02 | 广州汽车集团股份有限公司 | Pedestrian protection aPLI leg dynamic calibration device and method |
-
2019
- 2019-07-19 CN CN201921140153.0U patent/CN210638900U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304638A (en) * | 2020-10-30 | 2021-02-02 | 广州汽车集团股份有限公司 | Pedestrian protection aPLI leg dynamic calibration device and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200529 |