Pedestrian leg collision protection devices for vehicles and vehicles having them

Abstract

This invention discloses a pedestrian leg collision protection device for a vehicle and a vehicle having the same. The vehicle has a front bumper grille. The pedestrian leg collision protection device includes: a front end module disposed at the rear of the front bumper grille; a supporting guide member disposed at the rear of the front bumper grille and connected to the front bumper grille, the supporting guide member having a rearwardly extending guide portion; and a supporting mounting base disposed between the front end module and the supporting guide member and connected to the front end module. The supporting mounting base has a first guide hole extending through the vehicle in the longitudinal direction. The guide portion is supported by the wall of the first guide hole and is adapted to move rearward along the first guide hole when the front bumper grille is impacted. According to the pedestrian leg collision protection device of this invention, when a vehicle collision occurs, the guide portion of the supporting guide member can move rearward along the first guide hole of the supporting mounting base, providing a buffering effect and reducing the injury to the pedestrian's legs.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a pedestrian leg collision protection device for a vehicle and a vehicle having the same. Background Technology

[0002] With the rapid growth of car ownership and the concentration of population due to urbanization in China, urban road conditions are becoming increasingly complex, leading to frequent traffic accidents. In pedestrian-vehicle collisions, leg injuries account for over 30% of all injuries. While leg injuries are generally not the primary cause of death for pedestrians, they can easily result in disability, placing a burden on families and society. Therefore, protecting pedestrians' legs during collisions is one of the key priorities in current automotive safety efforts in China.

[0003] Some existing vehicle models, such as SUVs, are prone to Z-shaped sagging during vehicle use due to the weight of their front bumper assemblies. To prevent this sagging, front bumper mounting support structures are typically added to the left and right sides of the center of the front bumper. However, these support structures often have high rigidity, encroaching on the leg impact crumple zone. This results in a greater impact force on the pedestrian's legs when the vehicle collides with them, causing excessive knee flexion, ligament sprains, and lower leg fractures. Therefore, it is necessary to optimize the design of the front bumper mounting support structure to provide good pedestrian leg impact protection while fulfilling the Z-shaped support requirements of the front bumper, thereby improving the overall vehicle collision safety performance. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a pedestrian leg collision protection device for vehicles, which can reduce injury to the legs of pedestrians in the event of a vehicle collision.

[0005] The present invention also proposes a vehicle having the above-mentioned pedestrian leg collision protection device.

[0006] According to a first aspect of the present invention, a pedestrian leg collision protection device for a vehicle, the vehicle having a front bumper grille, the pedestrian leg collision protection device comprising: a front end module disposed at the rear side of the front bumper grille; a support guide member disposed at the rear side of the front bumper grille and connected to the front bumper grille, the support guide member having a rearwardly extending guide portion; and a support mounting base disposed between the front end module and the support guide member and connected to the front end module, the support mounting base having a first guide hole extending in the longitudinal direction of the vehicle, the guide portion being supported on the wall of the first guide hole and adapted to move rearward along the first guide hole when the front bumper grille is impacted.

[0007] According to the pedestrian leg collision protection device of the present invention, by providing a supporting guide and a supporting mounting base between the front end module and the front bumper grille, and the supporting guide and the supporting mounting base engaging with the first guide hole, when a collision occurs at the front of the vehicle, such as a collision between a pedestrian and the front bumper grille, the external force acts on the front bumper grille and pushes the front bumper grille to move backward, and the guide part can move backward a certain distance along the opening direction of the first guide hole, thereby playing a certain buffering role, reducing the injury of the pedestrian's leg to the vehicle, and also reducing the risk of damage to the front bumper grille.

[0008] According to some embodiments of the present invention, the support mounting base further includes a first baffle, which is disposed on the wall of the first guide hole to prevent the guide portion from moving backward. The first baffle is adapted to be crushed under the compression of the guide portion when the front grille is impacted.

[0009] Furthermore, a first crushing groove is formed at the connection between the first baffle and the wall of the first guide hole, and the first baffle is adapted to be crushed from the first crushing groove under the compression of the guide portion when the front grille is impacted.

[0010] Furthermore, the supporting mounting base also includes: a mounting boss extending toward the front end module, the top surface of the mounting boss forming one sidewall of the first guide hole, and the first baffle disposed on the top surface of the mounting boss; a plurality of second baffles arranged circumferentially along the first guide hole and all located on the upper side of the mounting boss, the plurality of second baffles surrounding the top surface of the mounting boss to define the first guide hole, and at least one of the plurality of second baffles being arranged opposite to the mounting boss in the vertical direction.

[0011] In some embodiments, in the front-to-back direction, the height of the guide portion decreases in the vertical direction, the height of one portion of the guide portion is greater than the height of the first guide hole and the height of the remaining portion is less than the height of the first guide hole, and / or, the width of the guide portion decreases in the left-to-right direction, the width of one portion of the guide portion is greater than the width of the first guide hole and the width of the remaining portion is less than the width of the first guide hole.

[0012] In some embodiments, a second crushing groove is formed between two adjacent second baffles, and the second baffles are adapted to be crushed from the second crushing groove under the compression of the guide when the front grille is impacted.

[0013] In some embodiments, the position of the guide portion at which the height and / or width are equal to that of the first guide hole is a reference position, and the distance between the first baffle and the front end of the first guide hole is less than the distance between the rear end of the guide portion and the reference position.

[0014] According to some embodiments of the present invention, a second guide hole is formed on the front end module, the second guide hole being opposite to the first guide hole in the vehicle front-rear direction, and the guide portion being adapted to pass into the second guide hole after passing through the first guide hole.

[0015] According to some embodiments of the present invention, the support mounting base has a mounting boss that extends rearward, a positioning part is formed at the rear end of the mounting boss, and a positioning hole is formed on the front end module, wherein the positioning part and the positioning hole are positioned and engaged.

[0016] According to some embodiments of the present invention, the support guide includes: a guide portion formed as a guide pin; a support body defining a cavity facing the opening of the front bumper grille, one end of the guide pin opposite to the support mounting base being connected to the support body, and a plurality of mounting portions being formed on the side of the support body facing the support mounting base, the plurality of mounting portions being at different distances from the guide pin in the vehicle longitudinal direction, and the plurality of mounting portions being used to connect to different parts of the front bumper grille.

[0017] A vehicle according to a second aspect of the invention includes a pedestrian leg collision protection device for a vehicle according to a first aspect of the invention.

[0018] According to the present invention, by providing the above-mentioned pedestrian leg collision protection device, the vehicle can effectively reduce the injury to the pedestrian's legs in the event of a collision, and also reduce the risk of damage to the front bumper grille.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is an assembly diagram of the pedestrian leg collision protection device and the front bumper grille according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a pedestrian leg collision protection device according to an embodiment of the present invention;

[0022] Figure 3 yes Figure 2 A schematic diagram of one angle of the support guide shown;

[0023] Figure 4 yes Figure 2 A schematic diagram of the support guide at another angle;

[0024] Figure 5 yes Figure 2A schematic diagram of the support guide at another angle;

[0025] Figure 6 yes Figure 2 A schematic diagram of the support guide shown from another angle;

[0026] Figure 7 yes Figure 2 A schematic diagram of one angle of the support mounting base shown;

[0027] Figure 8 yes Figure 2 A schematic diagram of the support mounting base from another angle;

[0028] Figure 9 yes Figure 2 A schematic diagram of the support mounting base from another angle;

[0029] Figure 10 yes Figure 2 A schematic diagram of the support mounting base shown from another angle;

[0030] Figure 11 yes Figure 2 A schematic diagram of the support mounting base shown;

[0031] Figure 12 yes Figure 2 A schematic diagram of the front-end module shown.

[0032] Figure label:

[0033] Pedestrian leg collision protection device 100:

[0034] Support guide 1, support body 11, mounting part 111, guide part 12, second reinforcing rib 121,

[0035] Support mounting base 2, first guide hole 21, first reinforcing rib 22, mounting boss 23, positioning part 24, first baffle 25, first crushing groove 251, second baffle 26, second crushing groove 261, first bolt mounting hole 27.

[0036] Front-end module 3, second guide hole 31, positioning hole 32, second bolt mounting hole 33

[0037] Front grille 200. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] Reference below Figures 1-12 A pedestrian leg collision protection device 100 for a vehicle according to an embodiment of the first aspect of the present invention is described.

[0040] The pedestrian leg collision protection device 100 according to an embodiment of the present invention can be used in a vehicle having a front bumper grille 200. The pedestrian leg collision protection device 100 may include: a front end module 3, a support guide 1, and a support mounting base 2.

[0041] Combination Figure 1 and Figure 2 The front-end module 3 is located on the rear side of the front bumper grille 200, and the support guide 1 is located on the rear side of the front bumper grille 200. The support guide 1 is connected to the front bumper grille 200 and has a rearwardly extending guide portion 12. The support mounting base 2 is located between the front-end module 3 and the support guide 1. The support mounting base 2 can be connected to the front-end module 3. A first guide hole 21 is formed on the support mounting base 2, which runs through the vehicle in the front-rear direction. The guide portion 12 is supported on the hole wall of the first guide hole 21 and is adapted to move rearward along the first guide hole 21 when the front bumper grille 200 is impacted.

[0042] For example, the support guide 1 can be bolted to the front bumper grille 200, and the support mounting base 2 can be bolted to the front module 3. The guide portion 12 of the support guide 1 can be formed as a guide pin, which extends along the front-rear direction of the vehicle. The bottom of the guide pin is supported by the bottom wall of the first guide hole 21. In this way, the support mounting base 2 can support the front bumper grille 200, bear part of the weight of the front bumper grille 200, and prevent the front bumper grille 200 from sinking. The way the guide portion 12 of the support guide 1 and the first guide hole 21 on the support mounting base 2 cooperates means that when the front of the vehicle collides, such as when a pedestrian collides with the front bumper grille 200, the external force acts on the front bumper grille 200 and pushes the front bumper grille 200 backward. The guide portion 12 can move backward a certain distance along the opening direction of the first guide hole 21, thereby playing a certain buffering role, reducing the injury to the pedestrian's legs, and also reducing the risk of damage to the front bumper grille 200.

[0043] Optionally, the dimensions of the support mounting base 2 along the front-rear direction of the vehicle can be reasonably selected according to actual needs, so as to ensure that the first guide hole 21 has sufficient depth in the front-rear direction of the vehicle, so that the guide part 12 has sufficient stroke to buffer the impact force.

[0044] According to an embodiment of the present invention, the pedestrian leg collision protection device 100, by providing a supporting guide 1 and a supporting mounting base 2 between the front end module 3 and the front bumper grille 200, and the supporting guide 1 and the supporting mounting base 2 engaging with the first guide hole 21, ensures that when a collision occurs at the front of the vehicle, such as a collision between a pedestrian and the front bumper grille 200, an external force acts on the front bumper grille 200 and pushes it backward. The guide part 12 can then move backward a certain distance along the first guide hole 21 to provide a buffering effect, reducing the damage to the pedestrian's legs and the risk of damage to the front bumper grille 200. Furthermore, since the supporting guide 1 and the supporting mounting base 2 both have certain dimensions in the longitudinal direction of the vehicle, the distance between the front end module 3 and the front bumper grille 200 in the longitudinal direction of the vehicle is further increased, which helps to increase the backward distance of the front bumper grille 200 after an impact, thereby better buffering the impact force.

[0045] According to some embodiments of the present invention, the cross section of the guide portion 12 perpendicular to the direction of movement can be formed as square, circular or irregular shape, and the shape of the guide portion 12 can be reasonably selected according to actual needs. The cross section of the first guide hole 21 is adapted to the shape of the guide portion 12.

[0046] According to some embodiments of the present invention, reference Figures 9-11 The supporting mounting base 2 may also include a first baffle 25. Specifically, the first baffle 25 is disposed on the wall of the first guide hole 21. The first baffle 25 can prevent the guide part 12 from moving backward. When the front grille 200 is impacted, the first baffle 25 is suitable to be crushed under the compression of the guide part 12. For example, the first baffle 25 can prevent the guide part 12 from moving too backward when the vehicle speed is low and there is a slight contact with other objects or pedestrians, so as to avoid damage to the front grille 200. When the collision between the vehicle and other objects or pedestrians is more serious and the impact force is greater, the first baffle 25 can be crushed under the compression of the guide part 12 to buffer the impact force.

[0047] Further, refer to Figure 11 A first crushing groove 251 is formed at the connection between the first baffle 25 and the hole wall of the first guide hole 21. The first crushing groove 251 can reduce the connection strength between the first baffle 25 and the hole wall of the first guide hole 21. Thus, when the front bumper grille 200 is impacted, the first baffle 25 can be crushed from the first crushing groove 251 under the pressure of the guide part 12. This avoids the guide part 12 from being unable to crush the first baffle 25 due to the excessive structural strength of the first baffle 25, and the resulting short stroke of the guide part 12, which affects the buffering effect of the impact force.

[0048] Furthermore, refer to Figure 9 and Figure 10The supporting mounting base 2 also includes a mounting boss 23 and a plurality of second baffles 26. The mounting boss 23 extends toward the front end module 3, and its top surface forms one sidewall of the first guide hole 21; for example, the top surface of the mounting boss 23 forms the bottom wall of the guide hole. A first baffle 25 is disposed on the top surface of the mounting boss 23 and extends vertically. A plurality of second baffles 26 are arranged circumferentially along the first guide hole 21, and all the second baffles 26 are located above the mounting boss 23. The multiple second baffles 26 together enclose the first guide hole 21 with the top surface of the mounting boss 23, and at least one of the multiple second baffles 26 is arranged opposite to the mounting boss 23 in the vertical direction.

[0049] In the direction from front to back, refer to Figure 3 and Figure 5 The guide portion 12 decreases in height in the vertical direction, and a portion of the guide portion 12 has a height greater than the height of the first guide hole 21, while the remaining portion has a height less than the height of the first guide hole 21. Alternatively, the guide portion 12 decreases in width in the horizontal direction, with at least a portion of the guide portion 12 having a width greater than the width of the first guide hole 21 and the remaining portion having a width less than the width of the first guide hole 21. In other words, the guide portion 12 and the first guide hole 21 may only satisfy a corresponding size relationship in height, or the guide portion 12 and the first guide hole 21 may only satisfy a corresponding size relationship in width, or the guide portion 12 and the first guide hole 21 may satisfy corresponding size relationships in both height and width.

[0050] For example, in the front-to-back direction, the height of the guide portion 12 gradually decreases in the vertical direction, and the height of the portion of the guide portion 12 away from the supporting mounting base 2 is greater than the height of the first guide hole 21, while the height of the portion of the guide portion 12 near the mounting base is less than the height of the first guide hole 21. In the front-to-back direction, the width of the guide portion 12 decreases in the horizontal direction, and the width of the portion of the guide portion 12 away from the supporting mounting base 2 is greater than the width of the first guide hole 21, while the width of the portion of the guide portion 12 near the mounting base is less than the width of the first guide hole 21. Thus, when the guide portion 12 moves backward to a position where the height of the guide portion 12 is greater than the height of the first guide hole 21 or the width of the guide portion 12 is greater than the width of the first guide hole 21, continued backward movement will compress the second baffle 26 and partially crush it.

[0051] Therefore, the second baffle 26 can prevent the guide section 12 from moving too far backward when the vehicle speed is low and there is a slight collision with other objects or pedestrians, thus avoiding damage to the front grille 200. However, when the vehicle speed is high and the collision is more severe, it can be crushed to better buffer the impact force and reduce injury to the pedestrian's legs. In addition, the mounting boss 23 can also increase the size of the support mounting base 2 in the longitudinal direction of the vehicle to a certain extent, thereby further increasing the travel of the guide section 12, which in turn helps to better buffer the impact force and protect the pedestrian's legs.

[0052] In some embodiments, reference Figure 10 A second crushing groove 261 is formed between two adjacent second baffles 26. In this way, the second crushing groove 261 can reduce the connection strength between two adjacent second baffles 26. Thus, when the front grille 200 is impacted, the second baffles 26 can be crushed from the second crushing groove 261 under the pressure of the guide part 12. This avoids the guide part 12 being unable to crush the second baffles 26 due to the excessive structural strength of the second baffles 26, which would result in the guide part 12 having too short a stroke and affecting the buffering effect on the impact force.

[0053] In some embodiments, the position of the guide portion 12 at which the height and / or width are equal to that of the first guide hole 21 is a reference position. The distance between the first baffle 25 and the front end of the first guide hole 21 is less than the distance between the rear end of the guide portion 12 and the reference position. In this way, when a vehicle collision occurs, the guide portion 12, during its backward movement, first breaks through the first baffle 25, and then, during its continued backward movement, breaks through the second baffle 26. Thus, the first baffle 25 and the second baffle 26 can form a secondary buffer for the guide portion 12, avoiding the increased impact force required by the guide portion 12 and the increased impact force on pedestrians when the first baffle 25 and the second baffle 26 are configured to be broken through only simultaneously.

[0054] According to some embodiments of the present invention, reference Figure 7 and Figure 11 The surface of the support mounting base 2 facing the support guide member 1 has a plurality of first reinforcing ribs 22. The plurality of first reinforcing ribs 22 are arranged at intervals along the circumference of the first guide hole 21. The plurality of first reinforcing ribs 22 can strengthen the structural strength around the first guide hole 21, thereby improving the deformation resistance of the support mounting base 2.

[0055] According to some embodiments of the present invention, reference Figure 12A second guide hole 31 can be formed on the front-end module 3. The second guide hole 31 is opposite to and connected to the first guide hole 21 in the longitudinal direction of the vehicle. After passing through the first guide hole 21, the guide part 12 is adapted to pass through the second guide hole 31. In this way, the backward movement stroke of the guide part 12 can be increased, thereby increasing the backward movement distance of the front bumper grille 200, further improving the cushioning effect of the pedestrian leg collision protection device 100 on the impact force, and reducing the injury to the pedestrian's leg. Optionally, the first guide hole 21 and the second guide hole 31 are arranged at intervals in the longitudinal direction of the vehicle. This helps to further increase the travel range of the guide part 12 and improve the cushioning effect.

[0056] According to some embodiments of the present invention, reference Figure 9 and Figure 10 The support mounting base 2 has a mounting boss 23 that can extend rearward. A positioning part 24 is formed at the rear end of the mounting boss 23, and a positioning hole 32 is formed on the front end module 3. The positioning part 24 and the positioning hole 32 are positioned and engaged. Thus, when assembling the support mounting base 2 and the front end module 3, it is only necessary to position and engage the positioning part 24 of the support mounting base 2 with the positioning hole 32 of the front end module 3 to align the connecting parts on the front end module 3 of the support mounting base 2. This can improve the assembly efficiency of the support mounting base 2 and the front end module 3.

[0057] For example Figure 9 As shown, the support mounting base 2 is provided with a positioning part 24 and multiple first bolt mounting holes 27, which are arranged at intervals. The positioning part 24 is formed as a positioning post, and the cross-sectional area of ​​the positioning post gradually decreases from front to back. The front end module 3 is formed with multiple second bolt mounting holes 33 corresponding one-to-one with the first bolt mounting holes 27. The positioning holes 32 and the positioning posts are arranged opposite to each other in the front-rear direction of the vehicle, and the shapes of the positioning holes 32 and the positioning posts are adapted to each other. When assembling the support mounting base 2, the positioning posts are first inserted into the positioning holes 32, so that each first bolt mounting hole 27 is aligned with the corresponding second bolt mounting hole 33. Then, the threaded fasteners are passed through the first bolt mounting holes 27 and the second bolt mounting holes 33 in sequence to achieve the connection between the support mounting base 2 and the front end module 3. In this way, the positioning and cooperation of the positioning posts and the positioning holes 32 can improve the assembly efficiency of the support mounting base 2 and the front end module 3.

[0058] In some embodiments, to prevent the positioning part 24 from rotating relative to the positioning hole 32 during assembly, which would cause misalignment between the first bolt mounting hole 27 and the corresponding second bolt mounting hole 33, the cross-section of the positioning post is formed as non-circular. For example, the cross-section of the positioning post can be square, triangular, polygonal, or irregular, and the shape of the positioning hole 32 is adapted to the shape of the positioning post.

[0059] According to some embodiments of the present invention, reference Figures 3-6 The support guide 1 may include a guide portion 12 and a support body 11. The guide portion 12 may be formed as a guide pin extending from front to rear. The support body 11 defines a cavity opening toward the front bumper grille 200, which helps reduce weight. The front end of the support guide pin is connected to the support body 11. The front end of the support body 11 has multiple mounting portions 111, which are at different distances from the front end of the guide pin in the vehicle's longitudinal direction. This allows the multiple mounting portions 111 to be connected to different parts of the front bumper grille 200, thereby improving the connection strength between the support guide 1 and the front bumper grille 200. Optionally, each mounting portion 111 may be bolted to the front bumper grille 200.

[0060] Furthermore, the cross-section of the guide pin is formed into an I-shape, which helps to improve the structural strength of the guide pin. Optionally, the rear end face of the guide pin and the side wall of the guide pin are rounded, which makes the backward movement of the guide pin smoother. At the same time, the guide pin has a simple structure and is easy to manufacture.

[0061] Further, refer to Figure 3 and Figure 5 The guide pin has multiple spaced second reinforcing ribs 121 around its periphery. These multiple second reinforcing ribs 121 can enhance the structural strength of the guide pin, making it easier for the guide pin to break through the first baffle 25 and the second baffle 26 during its backward movement, thus preventing the guide pin from breaking.

[0062] The vehicle according to a second aspect of the present invention is described below.

[0063] The vehicle according to an embodiment of the present invention includes the pedestrian leg collision protection device 100 in the above embodiment.

[0064] According to the vehicle of the present invention, by providing the pedestrian leg collision protection device 100 described above, the injury to the pedestrian's leg can be effectively reduced in the event of a collision, and the risk of damage to the front bumper grille 200 can also be reduced.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pedestrian leg collision protection device for vehicles, characterized in that, The vehicle has a front bumper grille, and the pedestrian leg collision protection device includes: A front-end module, wherein the front-end module is located on the rear side of the front bumper grille; A support guide is provided on the rear side of the front bumper grille and connected to the front bumper grille, and the support guide has a rearwardly extending guide portion; A support mounting base is provided between the front-end module and the support guide and is connected to the front-end module. A first guide hole is formed on the support mounting base, which runs through the front-rear direction of the vehicle. The guide part is supported on the hole wall of the first guide hole and is adapted to move rearward along the first guide hole when the front grille is impacted. The support mounting base also includes a first baffle, which is disposed on the hole wall of the first guide hole to prevent the guide part from moving backward. The first baffle is adapted to be crushed under the pressure of the guide part when the front grille is impacted. The supporting mounting base also has: The mounting boss extends toward the front end module, and the top surface of the mounting boss forms one side wall of the first guide hole. The first baffle is disposed on the top surface of the mounting boss. A plurality of second baffles are arranged circumferentially along the first guide hole and are all located on the upper side of the mounting boss. The plurality of second baffles and the top surface of the mounting boss surround the first guide hole. At least one of the plurality of second baffles is arranged opposite to the mounting boss in the vertical direction. A second guide hole is formed on the front end module. The second guide hole is opposite to the first guide hole in the longitudinal direction of the vehicle. After the guide portion passes through the first guide hole, it is adapted to pass into the second guide hole.

2. The pedestrian leg collision protection device for vehicles according to claim 1, characterized in that, A first crushing groove is formed at the connection between the first baffle and the wall of the first guide hole. When the front grille is impacted, the first baffle is adapted to be crushed from the first crushing groove under the pressure of the guide portion.

3. The pedestrian leg collision protection device for vehicles according to claim 1, characterized in that, In the direction from front to back of the vehicle, the height of the guide portion decreases in the vertical direction, the height of one part of the guide portion is greater than the height of the first guide hole and the height of the remaining part is less than the height of the first guide hole, and / or, the width of the guide portion decreases in the horizontal direction, the width of one part of the guide portion is greater than the width of the first guide hole and the width of the remaining part is less than the width of the first guide hole.

4. The pedestrian leg collision protection device for vehicles according to claim 3, characterized in that, A second crushing groove is formed between two adjacent second baffles, and the second baffles are adapted to be crushed from the second crushing groove under the compression of the guide when the front grille is impacted.

5. The pedestrian leg collision protection device for vehicles according to claim 3, characterized in that, The position of the guide portion, which is equal in height and / or width to the first guide hole, is a reference position. The distance between the first baffle and the front end of the first guide hole is less than the distance between the rear end of the guide portion and the reference position.

6. The pedestrian leg collision protection device for vehicles according to claim 1, characterized in that, The supporting mounting base has a mounting boss that extends rearward, and a positioning part is formed at the rear end of the mounting boss. The front-end module has a positioning hole, and the positioning part is positioned and engaged with the positioning hole.

7. The pedestrian leg collision protection device for vehicles according to claim 1, characterized in that, The supporting guide includes: The guide portion is formed as a guide pin; A support body defines a cavity facing the opening of the front bumper grille. The front end of the guide pin is connected to the support body. The front end of the support body has a plurality of mounting portions. The plurality of mounting portions are at different distances from the guide pin in the vehicle longitudinal direction. The plurality of mounting portions are used to connect to different parts of the front bumper grille.

8. A vehicle, characterized in that, include: The pedestrian leg collision protection device for a vehicle according to any one of claims 1-7.

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