Pedestrian protection support and vehicle

By setting weakened through holes on the support platform of the pedestrian protection bracket and adjusting the stiffness to meet the requirements of the collision test, the problem of multiple mold designs was solved and the development cost was reduced.

CN224028950UActive Publication Date: 2026-03-24GAC TOYOTA MOTOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The development cost of pedestrian protection brackets at the front of vehicles is difficult to reduce because the mold needs to be redesigned every time a collision test fails, resulting in high mold design and manufacturing costs.

Method used

Design a pedestrian protection bracket, including a base frame and multiple support platforms. The support platforms are provided with a first weakening through hole. The rigidity can be adjusted by adjusting the size of the through hole, thus avoiding the need to redesign the mold.

Benefits of technology

By adjusting the size of the weakened through-hole in the support platform, the requirements for collision testing can be met without redesigning the mold, thus reducing development costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pedestrian protection support and a vehicle and relates to the technical field of vehicles, the pedestrian protection support is applied to the vehicle, the vehicle comprises a front end and a rear end, and the pedestrian protection support comprises a base frame and a plurality of supporting tables. Wherein the base frame comprises a supporting inclined plane, the supporting inclined plane is arranged close to the front end, a mounting surface is arranged at the top of the base frame, and the mounting surface and the supporting inclined plane are critically arranged; the multiple supporting tables are arranged on the base frame at intervals in the extending direction of the base frame, a mounting face is arranged between every two adjacent supporting tables, the supporting tables protrude out of the mounting faces, each supporting table comprises a main supporting face, and a first weakening through hole is formed in each main supporting face; the plane where the mounting surface is located is defined as a reference plane; the main supporting face inclines in the direction gradually away from the datum plane in the direction from the front end to the rear end, and the supporting inclined face and the main supporting face are located in the same plane. For the bracket, a new mold does not need to be redesigned for adjusting the rigidity, so that the development cost of the bracket is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field, especially a pedestrian protection support and vehicle. BACKGROUND

[0002] With the development of the automobile industry, the safety performance of the vehicle is increasingly improved, wherein the collision protection performance of the vehicle to the pedestrian is an important index for evaluating the safety performance of the vehicle. In the front end of the vehicle, in order to protect the lamp and cover the structure behind the lamp, a cover plate is usually arranged in front of the lampshade, and a support can be arranged between the cover plate and the lampshade to provide support for the cover plate. In order to make the rigidity of the support meet the standard required by the pedestrian protection, repeated collision experiments need to be conducted on the support. If the result of the collision experiment is unqualified, the support needs to be redesigned according to the experimental result, and the mold needs to be redesigned. Finally, the newly designed support is used to conduct the collision experiment again. This process may be repeated several times, and the mold needs to be redesigned each time. The design and manufacturing cost of the mold is high, thereby leading to the difficulty in reducing the development cost of the support.

[0003] Therefore, it is necessary to provide a pedestrian protection support and vehicle to solve or at least alleviate the above technical problems. SUMMARY

[0004] The main purpose of the utility model is to provide a pedestrian protection support and vehicle, which aims to solve the problem that the cost of the pedestrian protection support in the front end of the vehicle is difficult to reduce in the development process.

[0005] To achieve the above purpose, the utility model provides a pedestrian protection support applied to a vehicle, wherein the vehicle includes a front end and a rear end, and comprises:

[0006] A base frame, wherein the base frame comprises a support slope, the support slope is arranged close to the front end, the top of the base frame is provided with a mounting surface, and the mounting surface is arranged close to the support slope;

[0007] A plurality of support tables, wherein the plurality of support tables are arranged at intervals along the extension direction of the base frame, the mounting surface is arranged between adjacent support tables, the support tables are arranged protruding from the mounting surface, the support tables comprise main support surfaces, and the main support surfaces are provided with first weakened through holes;

[0008] Definition: the plane where the mounting surface is located is a reference plane;

[0009] In the direction from the front end to the rear end, the main support surfaces are inclined in the direction gradually away from the reference plane, and the support slope and the main support surfaces are located in the same plane.

[0010] In one embodiment, each of the support platforms further includes two side structural surfaces, which are disposed on both sides of the main support surface along the extending direction, and the side structural surfaces are provided with a second weakening through hole.

[0011] In one embodiment, the support platform protrudes along a first direction, and along the first direction, the distance between the two side structural surfaces within the same support platform gradually decreases.

[0012] In one embodiment, the pedestrian protection bracket further includes an auxiliary support portion, which is installed on the side of the base frame near the front end. The auxiliary support portion includes an auxiliary support surface, which is located in the same plane as the main support surface and is connected to the bottom of the main support surface.

[0013] In one embodiment, the pedestrian protection bracket further includes at least one reinforcing rib;

[0014] The reinforcing rib is disposed on the main support surface;

[0015] And / or, the reinforcing rib is disposed on the supporting inclined surface;

[0016] And / or, the reinforcing rib is disposed on the auxiliary support surface.

[0017] In one embodiment, there are multiple reinforcing ribs, which are arranged in parallel at intervals along the extending direction.

[0018] In one embodiment, a first mounting portion is provided between adjacent auxiliary support portions, and a second mounting portion is provided on the mounting surface.

[0019] In one embodiment, the first mounting part is a snap-fit ​​hole, and the second mounting part is a threaded hole.

[0020] In one embodiment, along the extending direction, the supporting inclined surface is provided with a plurality of auxiliary weakening through holes spaced apart.

[0021] This utility model also proposes a vehicle including a pedestrian protection bracket as described in any of the above embodiments. The vehicle further includes a headlight and a cover plate, the cover plate covering a portion of the headlight's lampshade, the pedestrian protection bracket being installed between the lampshade and the cover plate, and the supporting inclined surface and the main supporting surface being used to support the cover plate.

[0022] According to the technical solution provided by this utility model, a pedestrian protection bracket is applied to a vehicle, which includes a front end and a rear end. The pedestrian protection bracket includes a base frame and multiple support platforms. The base frame includes a supporting inclined surface, which is positioned near the front end. A mounting surface is provided on the top of the base frame, and the mounting surface is boundaryd with the supporting inclined surface. Multiple support platforms are spaced apart along the extension direction of the base frame, with mounting surfaces between adjacent support platforms. Each support platform protrudes from the mounting surface and includes a main support surface with a first weakening through hole. The plane containing the mounting surface is defined as a reference plane. Along the direction from the front end to the rear end, the main support surface is inclined away from the reference plane, and the supporting inclined surface and the main support surface are located in the same plane. This pedestrian protection bracket is positioned between a cover plate and a headlight. When the cover plate deforms, the pedestrian protection bracket provides a certain buffer, preventing pedestrians from colliding with the relatively rigid headlight. During the development of the pedestrian protection bracket, its rigidity needs to be continuously adjusted based on the results of collision tests. This pedestrian protection bracket, equipped with multiple support platforms, provides excellent support for the cover plate. Furthermore, by creating a first weakening hole to reduce the bracket's rigidity, developers can easily adjust the rigidity of subsequent brackets if the initial molded version fails to meet requirements. This adjustment involves welding or milling the corresponding portion of the mold to change the size of the first weakening hole. Through multiple adjustments to the first weakening hole, all parts of the pedestrian protection bracket can meet pedestrian protection standards. Therefore, adjusting the rigidity of this pedestrian protection bracket does not require redesigning a new mold, eliminating the costs of multiple mold designs and manufacturing processes, and thus reducing development costs. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a protective bracket in the prior art;

[0025] Figure 2 A schematic diagram of the structure of an embodiment of the pedestrian protection bracket provided by this utility model;

[0026] Figure 3 forFigure 2 Enlarged structural schematic view at A in the middle;

[0027] Figure 4 The utility model provides a cross section structure schematic view of pedestrian protection support after installing in vehicle.

[0028] Explanation of reference numerals:

[0029] 100, pedestrian protection support;

[0030] 1, base frame; 11, front end of support; 12, rear end of support; 13, mounting surface; 14, support inclined surface; 141, auxiliary weakening through hole; 15, first mounting portion; 16, second mounting portion;

[0031] 2, support platform; 21, main support surface; 211, first weakening through hole; 22, side structure surface; 221, second weakening through hole;

[0032] 3, auxiliary support portion; 31, auxiliary support surface;

[0033] 4, reinforcing rib;

[0034] 200, headlamp; 210, lampshade; 300, cover plate; 400, collision ball;

[0035] 500, protection support; 510, reinforced surface;

[0036] X, extension direction; Z, first direction.

[0037] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0041] In the automotive industry, pedestrian collision protection has always been an important research topic. In order to protect the headlamp and cover the structure inside the frame, a cover plate is usually arranged on the front side of the lampshade after the headlamp is installed on the frame. When subjected to a slight impact, the cover plate can deform to a certain extent as a buffer, thereby avoiding serious injury to pedestrians. When the force of the pedestrian and the cover plate support is too large, the cover plate may be deformed too much, so that the pedestrian is hit by the headlamp, and the rigidity of the headlamp is large, so that the pedestrian may be seriously injured.

[0042] In order to avoid the above situation, the applicant adds a protection bracket 500 to the lampshade and the cover plate support after experimental research, and the specific structure of the protection bracket 500 is as follows Figure 1 When subjected to external force, the protection bracket 500 can deform or collapse to absorb impact kinetic energy, thereby providing a certain buffering effect. In the development process of the protection bracket 500, a first generation bracket needs to be designed first, and a collision experiment needs to be carried out on the first generation bracket. If the results of the collision experiment do not meet the standard, the number of reinforcing surfaces 510 needs to be increased or decreased, and the shape of the reinforcing surface 510 needs to be redesigned to change the rigidity of the second generation bracket. At this time, the mold of the second generation bracket needs to be redesigned and re-made. If the collision experiment results of the second generation bracket still do not meet the standard, the number and shape of the reinforcing surface 510 need to be continuously adjusted to design the third generation bracket. At this time, the mold of the third generation bracket also needs to be redesigned and made. By analogy, the structure of the protection bracket 500 is iteratively optimized until the protection bracket 500 that can meet the pedestrian collision protection standard is optimized. This process may need to be optimized for n generations, and the number of reinforcing surfaces 510 needs to be increased or decreased for each generation of bracket, and the shape of the reinforcing surface 510 needs to be redesigned, so that the mold corresponding to each generation of bracket needs to be redesigned and manufactured. The design and manufacturing cost of the mold is high, so the development cost of the protection bracket 500 is difficult to reduce.

[0043] In view of this, the utility model provides a pedestrian protection support to solve the above problems.

[0044] Please refer to Figure 2 In an embodiment of the utility model, the pedestrian protection support 100 is applied to a vehicle, the vehicle includes a front end and a rear end, and comprises a base frame 1 and a plurality of support platforms 2, wherein one end of the base frame 1 close to the front end is a support front end 11, one end of the base frame 1 close to the rear end is a support rear end 12, the base frame 1 comprises a support inclined surface 14, the support inclined surface 14 is arranged close to the front end, the top of the base frame 1 is provided with a mounting surface 13, and the mounting surface 13 is critically arranged with the support inclined surface 14; the plurality of support platforms 2 are arranged at the base frame 1 along the extension direction X of the base frame 1, the mounting surface 13 is arranged between adjacent support platforms 2, the support platform 2 is arranged protruding from the mounting surface 13, the support platform 2 comprises a main support surface 21, and the main support surface 21 is provided with a first weakened through hole 211; definition: the plane where the mounting surface 13 is located is a reference plane; then along the direction from the front end to the rear end, the main support surface 21 is inclined along the direction gradually away from the reference plane, and the support inclined surface 14 and the main support surface 21 are located in the same plane.

[0045] Specifically, please refer to Figure 4 The pedestrian protection support 100 is an integral molding piece, which is arranged between the cover plate 300 and the headlamp 200, when the cover plate 300 deforms, the pedestrian protection support 100 can provide a certain buffer, so that the pedestrian avoids colliding with the headlamp 200 with high rigidity. Meanwhile, the pedestrian protection support 100 can also provide a certain supporting effect for the cover plate 300, so that the cover plate 300 does not deform after being slightly impacted. The inclined arrangement of the main support surface 21 and the support inclined surface 14 is to cater to the installation angle of the cover plate 300, in specific implementation, the inclination angle of the main support surface 21 and the support inclined surface 14 should be the same as the inclination angle of the cover plate 300, so as to increase the contact area of the cover plate 300 and the pedestrian protection support 100 and improve the uniformity of the force borne by the pedestrian protection support 100. The number of the support platforms 2 can be adjusted according to different vehicle models, for the vehicle model with a wider body, the number of the support platforms 2 can be increased or the spacing between the support platforms 2 can be increased. Since the base frame 1 in the embodiment is provided with the protruding support platform 2, and the support platform 2 is provided with the main support surface 21, therefore, a sufficient platform is provided for the change of the size and shape of the first weakened through hole 211, so as to facilitate the adjustment of the rigidity of the pedestrian protection support 100. For example, if the rigidity of a certain support platform 2 is too large, then only the size of the first weakened through hole 211 in the support platform 2 needs to be adjusted, that is, the rigidity of the support platform 2 and the nearby part can be changed. When adjusting the rigidity, according to the results of the collision experiment, only the size of the first weakened through hole 211 in the support platform 2 whose rigidity does not meet the standard needs to be adjusted, and the size of the first weakened through hole 211 in other support platforms 2 does not need to be adjusted.

[0046] Therefore, when iteratively optimizing the pedestrian protection bracket 100, only the size of the part in the mold corresponding to the first weakened through hole 211 needs to be changed; there is no need to redesign or adjust other parts of the mold. Let the part in the mold corresponding to the first weakened through hole 211 be called the hole-forming protrusion. In actual operation, the size of the hole-forming protrusion can be increased or decreased simply by welding or milling. Therefore, for the pedestrian protection bracket 100 provided by this utility model, adjusting its stiffness does not require redesigning a new mold, thus avoiding the cost of multiple mold design and manufacturing, and thereby reducing the development cost of the pedestrian protection bracket 100.

[0047] In other embodiments, if the support platform 2 is not provided, the pedestrian protection bracket 100 only includes a base frame 1 with weakening holes. Compared with this embodiment, this reduces the contact area between the pedestrian protection bracket 100 and the cover plate 300, which is detrimental to the uniformity of force distribution on the pedestrian protection bracket 100. If the contact area with the cover plate 300 needs to be increased, the mold needs to be redesigned, resulting in additional development costs. On the other hand, if the size of the base frame 1 is directly increased to increase the contact area between the base frame 1 and the cover plate 300, and weakening holes are formed on the base frame 1 to form the pedestrian protection bracket 100, the overall size of the pedestrian protection bracket 100 will be larger, increasing the manufacturing cost of the pedestrian protection bracket 100. The pedestrian protection bracket 100 provided in this embodiment adds a support platform 2 on the basis of the base frame 1 to meet the contact area between the pedestrian protection bracket 100 and the cover plate 300. The adjacent support platforms 2 are spaced apart, which helps to save manufacturing materials. The rigidity of the pedestrian protection bracket 100 can also be adjusted by adjusting the size of the first weakening through hole 211 in a certain support platform 2.

[0048] It should be noted that crash testing refers to pedestrian protection testing, which aims to assess the degree of injury to pedestrians by simulating vehicle-pedestrian collision scenarios, thereby prompting automakers to optimize vehicle design and reduce the risk of pedestrian injury. This requires the use of a head impactor (i.e.,...). Figure 4 The impact sphere 400 in the test area simulates a pedestrian's head. The head-shaped impactor is typically a homogeneous aluminum spherical structure, 165mm in diameter, covered with synthetic skin, and internally equipped with a triaxial or uniaxial accelerometer. The evaluation of pedestrian protection experiments primarily assesses the degree of injury using head injury indices. If the head injury indices in the test area do not meet the requirements, it indicates that the stiffness of the pedestrian protection bracket 100 at that location is too high and needs adjustment.

[0049] In one embodiment of this utility model, each support platform 2 further includes two side structural surfaces 22, which are disposed on both sides of the main support surface 21 along the extending direction X. Each side structural surface 22 has a second weakening through hole 221. Please refer to...Figure 2 Each support platform 2 is composed of a main support surface 21 and two side structure surfaces 22, the side structure surfaces 22 provide support to the main support surface 21 to avoid the main support surface 21 from breaking directly when subjected to external force. The second weakening through hole 221 is provided on the side structure surface 22 to reduce the rigidity of the side structure surface 22. There are stress concentration zones around the hole walls of the first weakening through hole 211 and the second weakening through hole 221, when subjected to external force, the stress balance in the stress concentration zones is more easily broken, so that the stress concentration zones are deformed or broken. According to the relevant regulations of pedestrian protection, the pedestrian protection bracket 100 should produce a deformation response after being subjected to the impact of the pedestrian, and when the energy applied by the impact to the pedestrian protection bracket 100 is too large, the pedestrian protection bracket 100 should collapse to reduce the force applied by the vehicle to the pedestrian, so as to achieve the purpose of protecting the pedestrian. In this embodiment, by providing the first weakening through hole 211 and the second weakening through hole 221 on the support platform 2 and adjusting the size of the first weakening through hole 211 and the second weakening through hole 221 through iteration optimization, the rigidity of the support platform 2 can meet the requirements of the pedestrian protection regulations. When the pedestrian protection bracket 100 is subjected to impact, the deformation or collapse phenomenon will first occur in the stress concentration zones around the first weakening through hole 211 and the second weakening through hole 221, thereby guiding the overall deformation or collapse of the pedestrian protection bracket 100 to produce a buffering effect. It should be noted that in this embodiment, when adjusting the rigidity of a certain support platform 2, the designer can select to adjust the size of one of the first weakening through hole 211 and the second weakening through hole 221 according to the results of the impact experiment, or adjust the size of the first weakening through hole 211 and the second weakening through hole 221 at the same time. That is, the second weakening through hole 221 provided on the support platform 2 provides greater flexibility for the rigidity adjustment process of the support platform 2.

[0050] Further, please refer to Figure 2 With Figure 4 In an embodiment of the present application, the support platform 2 is convexly arranged along the first direction Z, and the distance between the two side structure surfaces 22 in the same support platform 2 gradually decreases along the first direction Z. The first direction Z is perpendicular to the reference plane and points to a direction gradually away from the reference plane. For details, please refer to Figure 4The direction indicated by the middle arrow Z. This setting makes the outer structure of the support table 2 like a "wedge-shaped" structure. If the projection of the support table 2 to the reference plane is the first projection, the farther the distance from the reference plane, the smaller the area of the first projection. This setting is beneficial for the mold of the pedestrian protection bracket 100 to be demolded along the first direction Z, reducing the possibility of damage to the pedestrian protection bracket 100 during demolding. On the other hand, under the condition that the height of the support table 2 is constant, this setting is beneficial to increase the connection length between the main support surface 21 and the side structure surface 22, so that the pressure on the main support surface 21 can be more evenly transmitted to the side structure surface 22, and the main support surface 21 and the side structure surface 22 can be deformed or collapse synchronously as much as possible to fully exert the buffering performance of the buffer table.

[0051] Please refer to Figure 2 and Figure 3 In an embodiment of the present application, the pedestrian protection bracket 100 further comprises an auxiliary support part 3, which is installed on one side of the base frame 1 close to the front end, i.e. on the bracket front end 11. The auxiliary support part 3 comprises an auxiliary support surface 31, which is located in the same plane as the main support surface 21, and the bottom of the auxiliary support surface 31 is connected to the main support surface 21. The auxiliary support surface 31, the main support surface 21 and the support inclined surface 14 are all arranged in the same plane and are used together to support the cover plate 300, so as to increase the contact area between the pedestrian protection bracket 100 and the cover plate 300, thereby further improving the uniformity of the force received by the pedestrian protection bracket 100. In addition, the plurality of auxiliary support parts 3 are arranged at intervals, and a weakening groove can be formed between adjacent auxiliary support parts 3. When the pedestrian protection bracket 100 is under pressure, the connection between the auxiliary support part 3 and the base frame 1 is more prone to collapse, thereby reducing the stiffness of the pedestrian protection bracket 100 to some extent.

[0052] Please refer to Figure 2 and Figure 3 In an embodiment of the present application, the pedestrian protection bracket 100 further comprises at least one reinforcing rib 4; the reinforcing rib 4 is arranged on the main support surface 21; and / or the reinforcing rib 4 is arranged on the support inclined surface 14; and / or the reinforcing rib 4 is arranged on the auxiliary support surface 31. The position and length of the reinforcing rib 4 are set according to the results of the collision experiment. According to the experimental results, it can be arranged on any plane of the main support surface 21, the support inclined surface 14 and the auxiliary support surface 31. If the stiffness of a position of the pedestrian protection bracket 100 is insufficient, a reinforcing rib 4 needs to be arranged on any plane of the main support surface 21, the support inclined surface 14 and the auxiliary support surface 31 corresponding to the position. The reinforcing rib 4 is used to improve the local stiffness of the pedestrian protection bracket 100, and the size optimization of the reinforcing rib 4 can be synchronized with the first weakening through hole 211 and the second weakening through hole 221. Through the arrangement of the reinforcing rib 4, the stiffness adjustment process of the pedestrian protection bracket 100 is more flexible.

[0053] In addition, in an embodiment of the utility model, the number of reinforcing ribs 4 is multiple, and the multiple reinforcing ribs 4 are arranged in parallel along the extension direction X of the base frame 1. This arrangement is conducive to ensuring the overall rigidity of the pedestrian protection support 100 and avoiding the rigidity of the pedestrian protection support 100 being too low, so that the pedestrian protection support 100 is not collapsed by a slight impact, thereby avoiding the situation of increased vehicle cost.

[0054] The optimization design of the first weakened through hole 211, the second weakened through hole 221 and the reinforcing rib 4 has the following two schemes of template trimming, which are taken as an example of the optimization path from the first generation of pedestrian protection support 100 to the second generation of pedestrian protection support 100.

[0055] (1) The first generation of pedestrian protection support 100 is not provided with reinforcing ribs 4, or is provided with a small number of reinforcing ribs 4, and the sizes of the first weakened through hole 211 and the second weakened through hole 221 are small. According to the results of the collision experiment, the rigidity of the pedestrian protection support 100 is selected to be increased or decreased. When the rigidity needs to be increased, reinforcing ribs 4 are added at the corresponding positions, and correspondingly, groove positions are added at the corresponding positions in the mold, which are used to form the reinforcing ribs 4 by injection molding. The way of adding groove positions can be realized by computer numerical control (CNC) technology. When the rigidity needs to be decreased, the sizes of the first weakened through hole 211 or the second weakened through hole 221 are increased in the corresponding support table 2, and correspondingly, the sizes of the hole forming protrusions in the mold are increased. The way of increasing the sizes of the hole forming protrusions can be realized by mold welding and CNC technology.

[0056] (2) The first generation of pedestrian protection support 100 is provided with a large number of reinforcing ribs 4, and the sizes of the first weakened through hole 211 and the second weakened through hole 221 are large. According to the results of the collision experiment, the rigidity of the pedestrian protection support 100 is selected to be increased or decreased. When the rigidity needs to be increased, the sizes of the first weakened through hole 211 or the second weakened through hole 221 are reduced in the corresponding support table 2, and correspondingly, the sizes of the hole forming protrusions in the mold are reduced. The way of reducing the sizes of the hole forming protrusions can be realized by CNC technology. When the rigidity needs to be decreased, the reinforcing ribs 4 are cancelled at the corresponding positions, and correspondingly, the groove positions are filled in the corresponding positions in the mold. The way of filling the groove positions can be realized by mold welding and CNC technology. In operation, the mold welding technology is used first, the solder is used to fill the groove positions, and then the CNC technology is used to mill off the excess solder.

[0057] Through the above two optimization paths, the first generation of pedestrian protection support 100 can be iterated to the second generation of pedestrian protection support 100. The specific optimization path needs to be selected according to the actual situation of the processing site.

[0058] In an embodiment of the utility model, first installation part 15 is arranged between adjacent auxiliary support parts 3, and mounting surface 13 is provided with second installation part 16. First installation part 15 is used to be connected with lampshade 210, and second installation part 16 is used to be connected with cover plate 300. By arranging first installation part 15 between auxiliary support parts 3 and arranging second installation part 16 on mounting surface 13, it can avoid that first installation part 15 and second installation part 16 occupy too much space, so as to avoid affecting the structural layout of pedestrian protection support 100. First installation part 15 and second installation part 16 have various implementation forms, and first installation part 15 and second installation part 16 can all be arranged as threaded holes or all be arranged as buckle holes and be connected with cover plate 300 and lampshade 210 through buckling.

[0059] In an embodiment of the utility model, first installation part 15 is a buckle hole, and second installation part 16 is a threaded hole. First installation part 15 is connected with lampshade 210 through buckling, which is conducive to the quick assembly and disassembly of pedestrian protection support 100 and lampshade 210, and second installation part 16 is connected with cover plate 300 through screwing, which is conducive to ensuring the stability of the installation of pedestrian protection support 100. This arrangement can not only reduce the assembly and disassembly time of pedestrian protection support 100, but also ensure the stability of its installation on the vehicle.

[0060] Please refer to Figure 2 With Figure 3 In an embodiment of the utility model, a plurality of auxiliary weakening holes 141 are arranged at intervals on support inclined surface 14 along extension direction X. The arrangement of auxiliary weakening holes 141 is used to reduce the rigidity of base frame 1, so that the rigidity of base frame 1 is consistent with the rigidity of support platform 2 as much as possible, so that the two can respond synchronously under the action of external force, avoiding the situation that support platform 2 has collapsed, but base frame 1 is still intact.

[0061] The utility model also provides a vehicle, which comprises the pedestrian protection support 100, and the specific structure of the pedestrian protection support 100 is referred to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The vehicle further comprises a headlamp 200 and a cover plate 300, the cover plate 300 covers part of the lampshade 210 of the headlamp 200, the pedestrian protection support 100 is installed between the lampshade 210 and the cover plate 300, and the support inclined surface 14 and the main support surface 21 are used to support the cover plate 300. The connection mode between the pedestrian protection support 100 and the lampshade 210 and the cover plate 300 is referred to the above-mentioned embodiment.

[0062] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. A pedestrian protection bracket, applied to a vehicle, the vehicle comprising a front end and a rear end, characterized in that, The pedestrian protection bracket comprises: a base frame comprising a support slope arranged close to the front end, a top of the base frame being provided with a mounting surface arranged in a boundary with the support slope; a plurality of support platforms arranged at intervals along an extension direction of the base frame, the mounting surface being arranged between adjacent support platforms, the support platforms being arranged protruding from the mounting surface, the support platforms comprising a main support surface provided with a first weakened through hole; definition: the plane in which the mounting surface is located is a reference plane; in a direction from the front end to the rear end, the main support surface is inclined in a direction gradually away from the reference plane, and the support slope is located in the same plane as the main support surface.

2. Pedestrian protection shield according to claim 1, characterized in that Each of the support platforms further comprises two side structure surfaces arranged on both sides of the main support surface along the extension direction, the side structure surfaces being provided with a second weakened through hole.

3. Pedestrian protection shield according to claim 2, characterized in that The support platforms are arranged protruding in a first direction, and the distance between the two side structure surfaces in the same support platform gradually decreases along the first direction.

4. Pedestrian protection shield according to claim 1, characterized in that The pedestrian protection bracket further comprises an auxiliary support portion arranged on one side of the base frame close to the front end, the auxiliary support portion comprising an auxiliary support surface, the auxiliary support surface being located in the same plane as the main support surface, and the auxiliary support surface being connected to the bottom of the main support surface.

5. Pedestrian protection shield according to claim 4, characterized in that The pedestrian protection bracket further comprises at least one reinforcing rib; The reinforcing rib is arranged on the main support surface; and / or, the reinforcing rib is arranged on the support slope; and / or, the reinforcing rib is arranged on the auxiliary support surface.

6. Pedestrian protection shield according to claim 5, characterized in that The number of reinforcing ribs is a plurality, and the plurality of reinforcing ribs are arranged in parallel at intervals along the extension direction.

7. Pedestrian protection shield according to claim 4, characterized in that First mounting portions are arranged between adjacent auxiliary support portions, and the mounting surface is provided with second mounting portions.

8. Pedestrian protection shield according to claim 7, characterized in that The first mounting portions are buckle holes, and the second mounting portions are threaded holes.

9. The pedestrian protection support of claim 1, wherein Along the extension direction, a plurality of auxiliary weakened through holes are arranged at intervals on the support slope.

10. A vehicle characterized by comprising: The vehicle comprises the pedestrian protection bracket according to any one of claims 1 to 9, a headlamp and a cover plate, the cover plate being arranged on a lampshade of part of the headlamp, the pedestrian protection bracket being arranged between the lampshade and the cover plate, the support slope and the main support surface being used to support the cover plate.