Grille mounting structure, grille assembly and vehicle

Abstract

The utility model provides a grille installation structure, grille assembly and vehicle, the grille installation structure includes frame, first seat body and second seat body, frame includes relatively fixed first side frame and second side frame, the first seat body is equipped on the first side frame and is used for connecting one of front anti-collision beam and leg protection beam, and the second seat body is equipped on the second side frame and is used for connecting the other one of front anti-collision beam and leg protection beam. The second seat body comprises a support used for connecting the other one of the front anti-collision beam and the leg protection beam, and further comprises an extension part arranged on the second side frame and connected with the support, and the extension part comprises a deformable part; and the deformable part is used for deforming to adapt to the relative movement between the support and the second side frame when the relative movement occurs between the front anti-collision beam and the leg protection beam.

Description

TECHNICAL FIELD

[0001] The utility model relates to traffic tool technical field especially, it relates to a grating mounting structure, grating assembly and vehicle. BACKGROUND

[0002] The air inlet grille is an important vehicle appearance part, in addition to realizing the functions of air intake and protecting the engine compartment, more and more air inlet grilles have the functions of lighting, decoration and improving vehicle recognition, and the diversification of functions makes the structure of air inlet grille complex, the weight increases, the manufacturing and maintenance cost improves, and then higher requirements are put forward to the installation between air inlet grille and vehicle body.

[0003] For example, the active air grille (AGS) with switchable open and closed state is generally installed on the front bumper beam and the leg protection beam, when the vehicle runs on the concave-convex rugged road, causes the relative movement of the leg protection beam and the front bumper beam, the active air grille is subjected to the force from different directions of the front bumper beam and the leg protection beam respectively, and thus the active air grille faces the risk of being extruded, pulled, bent, twisted or sheared, and has a higher probability of damage and failure. SUMMARY

[0004] Therefore, the utility model provides a grating mounting structure, grating assembly and vehicle, the grating mounting structure of the utility model can adapt to the use condition of the relative movement of the front bumper beam and the leg protection beam, and has a lower probability of damage and failure.

[0005] The grating mounting structure of the utility model comprises a frame, a first seat body and a second seat body, the frame comprises a first side frame and a second side frame fixed relative to each other, the first seat body is arranged on the first side frame and is used for connecting one of the front bumper beam and the leg protection beam, the second seat body comprises a support for connecting the other of the front bumper beam and the leg protection beam, and further comprises an extension part arranged on the second side frame and connected with the support, the extension part comprises a deformable part, and the deformable part is used for deforming to adapt to the relative movement between the support and the second side frame when the relative movement occurs between the front bumper beam and the leg protection beam.

[0006] In some embodiments, the extension part is provided with a receiving groove, at least part of the support is located in the receiving groove, the deformable part is connected between the inner wall of the receiving groove and the support, and the deformable part has an extension and contraction deformation degree of freedom, and a variable gap is formed between the support and the inner wall of the receiving groove through the extension and contraction deformation degree of freedom.

[0007] In some embodiments, the number of deformable parts is multiple, and the multiple deformable parts are spaced apart from each other and arranged on the outer side of the support, and each deformable part is connected between the inner wall of the receiving groove and the outer side of the support.

[0008] In some embodiments, the extension part further comprises an extension plate with the receiving slot, and the deformable part has a shearing deformation freedom, thereby allowing the support to move along the thickness direction of the extension plate relative to the extension plate.

[0009] In some embodiments, the receiving slot extends along the thickness direction of the extension plate and penetrates through both sides of the extension plate.

[0010] In some embodiments, the support has a second fastening hole, and the support comprises a first end and a second end arranged opposite to each other along the thickness direction of the extension plate, and the second fastening hole penetrates through the first end and the second end.

[0011] In some embodiments, the two sides of the extension plate are respectively used for facing the leg protection beam and facing away from the leg protection beam.

[0012] The first end protrudes from the side of the extension plate facing the leg protection beam, and / or the second end protrudes from the side of the extension plate facing away from the leg protection beam.

[0013] In some embodiments, the second seat body further comprises a second fastener, and the second fastener comprises a second bolt and a second nut, the second bolt comprises a screw rod and a bolt head, the screw rod penetrates through the second fastening hole and is connected with the second nut, and the second nut and the bolt head abut against the first end and the second end, respectively.

[0014] In some embodiments, the extension plate extends along the Y-axis direction and the Z-axis direction of the vehicle coordinate system, and the thickness direction of the extension plate is the X-axis direction of the vehicle coordinate system.

[0015] In some embodiments, the extension part is an integrally formed structure.

[0016] In some embodiments, the deformable part and the part of the extension part excluding the deformable part are separately arranged.

[0017] In some embodiments, the extension part further comprises an extension plate with the receiving slot, and at least part of the support is located in the receiving slot, the deformable part comprises a buffer sleeve sleeved on the support, and the buffer sleeve is clamped between the support and the inner wall of the receiving slot and is adaptively connected with the inner wall of the receiving slot.

[0018] The grille assembly comprises an air inlet grille and the grille mounting structure.

[0019] The vehicle comprises a vehicle body, a subframe, a leg protection beam, and the grille assembly, the vehicle body comprises a front bumper beam, the subframe is movably connected with the vehicle body, the leg protection beam is connected with the subframe, one of the first seat body and the support is connected with the front bumper beam and the leg protection beam.

[0020] The grille mounting structure of the utility model can adapt to the use condition of relative movement of the front anti-collision beam and the leg protection beam, and reduce the risk of damage and failure of the air inlet grille due to external force from different directions of the front anti-collision beam and the leg protection beam. When the vehicle runs on a concave-convex rugged road surface or the front end of the vehicle hits an object to cause relative movement of the leg protection beam and the front anti-collision beam, the support moves relative to the second side frame and forces the deformable part to deform, at which time the deformation amount of the deformable part just meets the requirement of displacement of the support relative to the frame, so the deformable part can filter out the exciting energy of the leg protection beam relative to the front anti-collision beam, block the further conduction of the exciting energy to the frame and the air inlet grille, so that the first side frame and the second side frame continue to maintain a relative fixed state and will not cause unbalanced force of the air inlet grille and damage and failure, and the air inlet grille is protected to a greater extent, thereby saving the repair cost of the air inlet grille for the user. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic view of the grille mounting structure of an embodiment of the utility model;

[0022] Figure 2 It is a partial schematic view of the grille mounting structure of an embodiment of the utility model;

[0023] Figure 3 It is a partial schematic view of the grille mounting structure of an embodiment of the utility model;

[0024] Figure 4 It is a sectional view of the grille mounting structure of an embodiment of the utility model.

[0025] The reference signs are as follows: 10, frame; 11, first side frame; 12, second side frame; 20, first seat body; 21, first fastening hole; 30, second seat body; 31, support; 311, second fastening hole; 313, second end; 32, extension part; 321, deformable part; 322, extension plate; 323, variable gap; 421, second bolt; 422, second nut; 423, nut flange; 424, extrusion gap; 425, floating gap; 50, front anti-collision beam; 60, leg protection beam. DETAILED DESCRIPTION

[0026] 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.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0028] The grille mounting structure of the present application is used for connecting and mounting the air inlet grille on the vehicle. The grille assembly of the present application comprises the air inlet grille and the grille mounting structure of the present application. The vehicle of the present application comprises the grille assembly of the present application. The air inlet grille is used for allowing gas to enter the engine compartment and protecting some device structures in the engine compartment, such as water tank, various oil pots, etc.

[0029] The present application is not limited to the specific type of air inlet grille. In some embodiments, the air inlet grille constituting the grille assembly with the grille mounting structure is an active air inlet grille, also referred to as AGS. The active air inlet grille integrates the functions of air inlet, engine compartment protection, switchable opening and closing state and opening degree of air inlet window, decoration, improvement of vehicle appearance recognition, etc. Optionally, the active air inlet grille also carries a lamp group and has the functions of lighting and producing specific light effects.

[0030] The vehicle of the present application comprises a vehicle body, a subframe and a leg protection beam 60. The vehicle body comprises a front bumper beam 50. The subframe is movably connected with the vehicle body, for example, by flexible connection through elastic members. The leg protection beam 60 is connected to the subframe. When the vehicle runs on a concave-convex rugged road surface, the subframe moves relative to the vehicle body, so that the front bumper beam 50 and the leg protection beam 60 move relatively, and the leg protection beam 60 appears to shake and vibrate relative to the front bumper beam 50. When the front end of the vehicle collides with an object or a pedestrian, the leg protection beam 60 also moves relative to the front bumper beam 50. Next, the grille mounting structure, the grille assembly and the vehicle of the present application will be described in detail by taking the example of the grille mounting structure carrying the active air inlet grille and constituting the air inlet assembly.

[0031] Referring to Figure 1 , the grille mounting structure comprises a frame 10, a first seat body 20 and a second seat body 30. The frame 10 is used for carrying the air inlet grille and comprises a first side frame 11 and a second side frame 12 which are fixedly arranged. When the grille assembly constituted by the grille mounting structure and the air inlet grille is mounted to the vehicle, the frame 10 is located substantially between the front bumper beam 50 and the leg protection beam 60. The first seat body 20 is arranged on the first side frame 11 and is used for connecting one of the front bumper beam 50 and the leg protection beam 60. The second seat body 30 is arranged on the second side frame 12 and is used for connecting the other of the front bumper beam 50 and the leg protection beam 60.

[0032] The active air intake grille has large weight and size. In view of the installation reliability of the grille assembly, the leg protection beam 60 is connected to the other one of the first seat body 20 and the second seat body 30 on the basis of the front bumper beam 50 being connected to one of the first seat body 20 and the second seat body 30, so as to increase the connection points between the grille assembly and the vehicle, thereby limiting the degrees of freedom of the grille assembly, so that the integrity of the grille assembly and the vehicle body is stronger. It can be understood that even if the air intake grille is a conventional ordinary grille rather than an active air intake grille, it can be further connected with the leg protection beam 60 on the basis of being connected with the front bumper beam 50.

[0033] In some embodiments, when the grille assembly composed of the grille mounting structure and the air intake grille is mounted to the vehicle, the first side frame 11 is the part of the frame 10 relatively close to the front bumper beam 50, and the first side frame 11 is also the part of the frame 10 relatively far from the ground, the second side frame 12 is the part of the frame 10 relatively close to the leg protection beam 60, and the second side frame 12 is also the part of the frame 10 relatively close to the ground, the first side frame 11 and the second side frame 12 both extend approximately in the Y-axis direction of the vehicle coordinate system, the first seat body 20 is fixedly arranged on the first side frame 11 and connected to the front bumper beam 50, and the second seat body 30 is arranged on the second side frame 12 and connected to the leg protection beam 60.

[0034] Optionally, the first seat body 20 is provided with a first fastening hole 21 for the first fastener to pass through, the first fastener can be one or more of a bolt, a screw, a rivet, and a bolt, or can be another type of fastener, the first fastener extends into the front bumper beam 50 after passing through the first seat body 20 to lock the first seat body 20 to the front bumper beam 50; the second seat body 30 is provided with a second fastening hole 311 for the second fastener to pass through, the second fastener can be one or more of a bolt, a screw, a rivet, and a bolt, or can be another type of fastener, the second fastener extends into the leg protection beam 60 after passing through the second seat body 30 to lock the second seat body 30 to the leg protection beam 60.

[0035] Referring to Figure 2 and Figure 3 , Figure 2 and Figure 3The second seat body 30 of the grille mounting structure is shown, and the second seat body 30 includes a support 31 for connecting the front bumper beam 50 or the leg protection beam 60, and further includes an extension part 32 arranged on the second side frame 12 and connected to the support 31, the support 31 is fixedly connected with the front bumper beam 50 or the leg protection beam 60 through the second fastener, and the extension part 32 includes a deformable part 321 with deformation capability. The deformable part 321 is used for deforming when the front bumper beam 50 and the leg protection beam 60 move relatively, so as to adapt to the relative movement between the support 31 and the second side frame 12. When the second seat body 30 is provided with a second fastening hole 311, the second fastening hole 311 is specifically arranged on the support 31.

[0036] It can be understood that when the front bumper beam 50 and the leg protection beam 60 move relatively, one of the front bumper beam 50 and the leg protection beam 60 is rigidly connected with the first seat body 20 through the first fastener, and the support 31 moves relative to the second side frame 12 under the driving of the other one of the front bumper beam 50 and the leg protection beam 60 and forces the deformable part 321 to deform, at this time, the deformation amount of the deformable part 321 is just enough to meet the displacement requirement of the support 31 relative to the frame 10. Therefore, the deformable part 321 filters out the excitation energy of the leg protection beam 60 relative to the front bumper beam 50 through deformation, and blocks the excitation energy from being conducted to the frame 10 and the air inlet grille, so that the first side frame 11 and the second side frame 12 maintain a relatively fixed state and stably bear the air inlet grille, and damage and failure of the air inlet grille under bending and torsion, shearing or tension and pressure are avoided, the air inlet grille is more greatly preserved, and the maintenance cost of the air inlet grille for the user is saved. Therefore, the grille mounting structure of the utility model can adapt to the use working condition that the front bumper beam and the leg protection beam move relatively.

[0037] For the convenience of description, the grille mounting structure of the utility model is introduced below according to the case that the first seat body 20 connects the front bumper beam 50 and the second seat body 30 connects the leg protection beam 60. In some embodiments, the extension part 32 is provided with a receiving groove, at least part of the support 31 is located in the receiving groove, and the deformable part 321 is connected to the inner wall surface of the receiving groove and the support 31. The deformable part 321 itself has an extension and contraction deformation degree of freedom. When the support 31 moves relative to the second side frame 12 following the leg protection beam 60, the support 31 moves in the receiving groove, at this time, one end of the deformable part 321 connected to the support 31 is close to or away from the other end of the deformable part 321 connected to the inner wall of the receiving groove, so that a variable gap 323 is formed between the support 31 and the inner wall of the receiving groove, and the width of the variable gap 323 changes with the movement of the support 31 relative to the second side frame 12.

[0038] Reference is made to Figures 2-3, the extension part 32 further comprises an extension plate 322 arranged on the second side frame 12, the extension plate 322 is provided with the accommodating groove, the inner wall surface of the accommodating groove is a cylindrical surface, the number of the deformable parts 321 is multiple, the multiple deformable parts 321 are arranged at intervals and arranged around the outside of the support 31, and a variable gap 323 in the shape of a fan ring is formed between any two deformable parts 321, so that the multiple variable gaps 323 and the multiple deformable parts 321 are alternately arranged outside the support 31 along the circumferential direction of the support 31, the support 31 is provided with the second fastening hole 311 and has a hollow cylindrical structure, the outer side of the support 31, i.e. the outer circumferential side of the support 31 facing the inner wall of the accommodating groove, and the two ends of each deformable part 321 are connected to the outer side of the support 31 and the inner wall of the accommodating groove respectively. Each deformable part 321 is in the shape of a rod, and each deformable part 321 extends along a radial direction of the support 31, and when the deformable part 321 is stretched or contracted, the deformable part 321 in the shape of a rod is elongated or shortened along the radial direction of the support 31 to change the width of the variable gap 323.

[0039] Specifically, the deformable part 321 also has a shearing deformation degree of freedom, i.e. each deformable part 321 can also produce shearing deformation. When the deformable part 321 produces shearing deformation, the support 31 moves relative to the extension plate 322 along the thickness direction of the extension plate 322. Figures 2-3 In the embodiment shown, the accommodating groove extends along the thickness direction of the extension plate 322 to pass through the two opposite sides of the extension plate 322 respectively, the two opposite sides of the extension plate 322 are respectively towards the leg protection beam 60 and away from the leg protection beam 60, the thickness direction of the extension plate 322 is the same as the axial direction of the support 31, both of which are the X-axis direction of the vehicle coordinate system. The second fastening hole 311 extends along the axial direction of the support 31 and passes through the first end and the second end 313 of the support 31. The first end and the second end 313 are arranged at opposite positions along the thickness direction of the extension plate 322.

[0040] In other embodiments, the support 31 can also have other shapes and structures other than the hollow cylindrical structure, and the support 31 can also not be provided with the second fastening hole 311.

[0041] Referring to Figure 3 and Figure 4 , if the grid mounting structure is cut by a plane passing through the axis of the second fastening hole 311 and parallel to the X-axis direction and the Z-axis direction of the vehicle coordinate system, the following is obtained Figure 4The shown is a cross-sectional view of the grille mounting structure. The second fastener includes a second bolt 421 and a second nut 422. The second bolt 421 includes a shank and a bolt head. The second nut 422 is fixedly embedded in the leg protection beam 60. The shank of the second bolt 421 penetrates the second fastening hole 311 and extends into a threaded hole of the second nut 422 to be threadedly connected with the second nut 422. An end of the second nut 422 is provided with a nut flange 423. One end of the nut flange 423 abuts against a surface of the leg protection beam 60, and the other end of the nut flange 423 abuts against the first end of the support 31. The bolt head abuts against the second end 313 of the support 31, which protrudes from the side of the extension plate 322 opposite to the leg protection beam 60.

[0042] Specifically, Figure 4 In the shown grille mounting structure, the second nut 422 is a pull-rivet nut. The extension portion 32, the deformable portion 321 and the support 31 are located in front of the leg protection beam 60. The extension plate 322 extends along the Y-axis direction and the Z-axis direction of the vehicle coordinate system. The axial direction of the second fastening hole 311 / the axial direction of the support 31 / the thickness direction of the extension plate 322 are all the same direction, and all are the X-axis direction of the vehicle coordinate system.

[0043] When the leg protection beam 60 collides with an object or a pedestrian, or the leg protection beam 60 moves along the X-axis direction of the vehicle coordinate system under the driving of the subframe, the shear deformation of the deformable portion 321 will be triggered. At this time, the support 31, the leg protection beam 60 and the second fastener are relatively fixed, and the three as a whole move along the X-axis direction of the vehicle coordinate system relative to the frame 10 and the front bumper beam 50. When the vehicle runs on a concave-convex rugged road surface, or the leg protection beam 60 moves along the Y-axis direction and / or the Z-axis direction of the vehicle coordinate system under the driving of the subframe, the extension and contraction deformation of the deformable portion 321 will be triggered. At this time, the support 31, the leg protection beam 60 and the second fastener are relatively fixed, and the three as a whole move along the Y-axis direction and / or the Z-axis direction of the vehicle coordinate system relative to the frame 10 and the front bumper beam 50.

[0044] It should be noted that the deformable portion 321 can only have one of the shear deformation or the extension and contraction deformation, or can have both the shear deformation and the extension and contraction deformation. Through the extension and contraction deformation and the shear deformation, the deformable portion 321 can filter out the excitation energy from the leg protection beam 60 in multiple different directions, thereby achieving the buffering and shock absorption protection of the frame 10 and the air intake grille in multiple directions. Even if the vehicle runs on a concave-convex rugged road surface, causing the leg protection beam 60 to vibrate and shake relative to the front bumper beam 50 in multiple directions, the air intake grille will not be subjected to unbalanced force, so that the protection effect of the air intake grille is more accurate.

[0045] By Figure 4It can be seen that the second end 313 protrudes from the side of the extension plate 322 opposite to the leg protection beam 60, so that a small extrusion gap 424 is formed between the side of the bolt head abutting the second end 313 and the side of the extension plate 322 opposite to the leg protection beam 60, and the extrusion gap 424 serves as the stroke of the second fastener, the support 31 and the leg protection beam 60 as a whole relative to the frame 10 and the front bumper beam 50 in the rear direction along the vehicle coordinate system X axis. The maximum stroke of the support 31 relative to the frame 10 in the rear direction along the vehicle coordinate system X axis can be calculated in advance by CAE simulation, and then the minimum height of the second end 313 protruding from the side of the extension plate 322 opposite to the leg protection beam 60 is determined based on the maximum stroke.

[0046] In this way, it can be ensured that the bolt head and the extension plate 322 do not collide and interfere, and the vibration energy of the leg protection beam 60 is prevented from being transmitted to the frame 10 by the second fastener.

[0047] By Figure 4 It can be seen that the nut flange 423 of the second nut 422 abuts the surface of the leg protection beam 60, and the nut flange 423 separates the extension plate 322 and the leg protection beam 60 and forms a floating gap 425, which serves as the stroke of the second fastener, the support 31 and the leg protection beam 60 as a whole relative to the frame 10 and the front bumper beam 50 in the forward direction along the vehicle coordinate system X axis. Similarly, the maximum stroke of the support 31 relative to the frame 10 in the forward direction along the vehicle coordinate system X axis can be calculated in advance by CAE simulation, and then the thickness of the nut flange 423 is determined based on the maximum stroke, and the thickness of the nut flange 423 limits the thickness of the floating gap 425.

[0048] In this way, it can be ensured that the leg protection beam 60 and the extension plate 322 do not collide and interfere, and the vibration energy of the leg protection beam 60 is prevented from being transmitted to the frame 10.

[0049] In other embodiments, the nut flange 423 can also be cancelled, and the first end can be protruded relative to the side of the extension plate 322 facing the leg protection beam 60, so that the floating gap 425 described above can also be obtained to block the vibration energy from being transmitted from the leg protection beam 60 to the frame 10.

[0050] It should be noted that the positions of the extension part 32, the deformable part 321 and the support 31 relative to the leg protection beam 60 are not limited to the front of the leg protection beam 60, but can also be located at the top or rear of the leg protection beam 60.

[0051] For example, when the extension part 32, the deformable part 321 and the support 31 are located on the top of the leg protection beam 60, the extension part 32 includes a first extension plate 322 protruding from the second side frame 12 and extending along the Y-axis and Z-axis directions of the vehicle coordinate system, and a second extension plate 322 bent and connected to one end of the first extension plate 322 away from the second side frame 12 and extending along the X-axis and Y-axis directions of the vehicle coordinate system, the axial direction of the axial / second fastening hole 311 of the support 31 and the thickness direction of the axial / second extension plate 322 are both the Z-axis direction of the vehicle coordinate system, and the deformable part 321 is adapted to the vibration of the support 31 and the leg protection beam 60 along the X-axis and Y-axis directions of the vehicle coordinate system through elastic deformation, and is adapted to the vibration of the support 31 and the leg protection beam 60 along the Z-axis direction of the vehicle coordinate system through shear deformation.

[0052] In addition, in other embodiments, the second fastener can also be other types of fasteners, and the second fastener is not limited to the second bolt 421 and the second nut 422. Alternatively, the second fastener can also be cancelled, and after the cancellation, the support 31 and the leg protection beam 60 can be fixedly connected through interference fit or plug-in fit.

[0053] Optionally, the deformable part 321 is an elastic material piece with elastic deformation capability, such as a rubber material. Of course, in other embodiments, the deformable part 321 can also not have elasticity, and even the deformable part 321 can be a consumable part, and when the deformable part 321 is deformed, only a new deformable part 321 needs to be replaced. As long as the deformable part 321 can be deformed to absorb the energy of the vibration of the leg protection beam 60 relative to the front bumper beam 50.

[0054] In some embodiments, the extension part 32 is an integrally formed structure, and the extension part 32 and the support 31 are integrally formed. The part of the extension part 32 excluding the deformable part 321 includes the above-mentioned extension plate 322, and the extension plate 322, the deformable part 321 and the support 31 can all be rubber material pieces.

[0055] In other embodiments, the part of the extension part 32 excluding the deformable part 321 and the deformable part 321 are separately formed, and the support 31 and the deformable part 321 are integrally formed or separately formed. The part of the extension part 32 excluding the deformable part 321 includes the above-mentioned extension plate 322. For example, the second side frame 12 and the extension plate 322 are integrally formed and are both metal pieces, the support 31 and the deformable part 321 are separately formed, the support 31 is a metal piece, and the deformable part 321 is a rubber piece.

[0056] Figures 2-3The variable gap 323 formed between the support 31 and the inner wall of the accommodating groove is not necessary. For example, in some embodiments not shown in the drawings, the rod-shaped deformable part 321 can be cancelled, and the deformable part 321 can include a hollow buffer sleeve sleeved on the outer circumferential side of the support 31, the inner wall of the buffer sleeve cooperates with the outer circumferential side of the support 31, the outer wall of the buffer sleeve cooperates with the inner wall of the accommodating groove, the buffer sleeve is clamped between the support 31 and the inner wall of the accommodating groove, and occupies the closed annular gap between the outer circumferential side of the support 31 and the inner wall of the accommodating groove, thereby cancelling the variable gap 323. The buffer sleeve can be a rubber piece or a foamed material piece.

[0057] In order to prevent the buffer sleeve from falling off from the accommodating groove, and prevent the support 31 from falling off from the buffer sleeve, the outer wall of the buffer sleeve and the inner wall of the accommodating groove can be positioned and matched by a stepped surface, a flange or a shaft shoulder, and the inner wall of the buffer sleeve and the outer circumferential side of the support 31 can also be positioned and matched by a stepped surface, a flange or a shaft shoulder. For example, the outer circumferential side of the support 31 and the inner wall of the accommodating groove are both provided with a positioning ring groove, and the inner wall and the outer wall of the buffer sleeve are both provided with a positioning flange, the positioning flange provided on the inner wall of the buffer sleeve cooperates with the positioning ring groove of the outer circumferential side of the support 31, and the positioning flange provided on the outer wall of the buffer sleeve cooperates with the positioning ring groove of the inner wall of the accommodating groove.

[0058] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present disclosure.

[0059] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present disclosure, and are not used as a limitation of the present disclosure, and as long as the above embodiments are within the spirit and scope of the present disclosure, any suitable changes and variations of the above embodiments are within the scope of the present disclosure.

Claims

1. A grid mounting structure characterized by comprising: The frame (10) includes a first fixed side frame (11) and a second side frame (12), the first seat body (20) is arranged on the first side frame (11) and is used for connecting one of the front bumper beam (50) and the leg protection beam (60), the second seat body (30) includes a support (31) used for connecting the other of the front bumper beam (50) and the leg protection beam (60), and further includes an extension part (32) arranged on the second side frame (12) and connected with the support (31), the extension part (32) includes a deformable part (321) used for deforming to adapt to the relative movement between the support (31) and the second side frame (12).

2. The grid mounting structure of claim 1, wherein The extension part (32) is provided with a receiving groove, at least part of the support (31) is located in the receiving groove, the deformable part (321) is connected with the inner wall of the receiving groove and the support (31), and the deformable part (321) has a telescopic deformation freedom degree, and a variable gap (323) is formed between the support (31) and the inner wall of the receiving groove.

3. The grid mounting structure of claim 2, wherein The number of the deformable parts (321) is multiple, and multiple deformable parts (321) are spaced apart and arranged around the outer side of the support (31), and each deformable part (321) is connected with the inner wall of the receiving groove and the outer side of the support (31).

4. The grid mounting structure of claim 2, wherein The extension part (32) further includes an extension plate (322) provided with the receiving groove, and the deformable part (321) has a shearing deformation freedom degree, so that the support (31) can move relative to the extension plate (322) along the thickness direction of the extension plate (322).

5. The grid mounting structure of claim 4, wherein The receiving groove extends along the thickness direction of the extension plate (322) and penetrates through both sides of the extension plate (322).

6. The grid mounting structure of claim 5, wherein The support (31) is provided with a second fastening hole (311), the support (31) includes a first end and a second end (313) arranged in the thickness direction of the extension plate (322) and oppositely arranged, and the second fastening hole (311) penetrates through the first end and the second end (313).

7. The grid mounting structure of claim 6, wherein Both sides of the extension plate (322) are respectively used for facing the leg protection beam (60) and facing away from the leg protection beam (60); The first end protrudes from one side of the extension plate (322) facing the leg protection beam (60); and / or, the second end (313) protrudes from one side of the extension plate (322) facing away from the leg protection beam (60).

8. The grid mounting structure of claim 7, wherein The second seat body (30) further includes a second fastener, the second fastener includes a second bolt (421) and a second nut (422), the second bolt (421) includes a screw rod and a bolt head, the screw rod penetrates through the second fastening hole (311) and is connected with the second nut (422), and the second nut (422) and the bolt head abut the first end and the second end (313) respectively.

9. The grid mounting structure of claim 6, wherein The extension plate (322) extends along the Y-axis direction and the Z-axis direction of the vehicle coordinate system, and the thickness direction of the extension plate (322) is the X-axis direction of the vehicle coordinate system.

10. The lattice mounting structure according to any one of claims 1 to 9, wherein The extension part (32) is an integral structure, or the deformable part (321) and the extension part (32) are separately arranged except the part of the extension part (32) where the deformable part (321) is removed.

11. The lattice mounting structure according to any one of claims 1 to 9, wherein The extension part (32) further comprises an extension plate (322) provided with a receiving groove, at least part of the support (31) is located in the receiving groove, the deformable part (321) comprises a buffer sleeve sleeved on the support (31), and the buffer sleeve is clamped between the support (31) and the inner wall of the receiving groove.

12. A grating assembly characterized by, The air intake grille and the grille mounting structure according to any one of claims 1 to 11 are included, and the air intake grille is mounted on the frame (10).

13. A vehicle characterized by comprising: The grille assembly according to claim 12 is included in a vehicle body, a subframe, a leg protection beam (60), and the grille assembly according to claim 12, the vehicle body comprises a front impact beam (50), the subframe is movably connected with the vehicle body, the leg protection beam (60) is connected with the subframe, the first seat body (20) is connected with one of the front impact beam (50) and the leg protection beam (60), and the support (31) is connected with the other of the front impact beam (50) and the leg protection beam (60).

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