Bumper positioning device and vehicle

Abstract

The utility model relates to the technical field of automobile accessories, in particular to a bumper positioning device and a vehicle, which comprises a supporting bracket, a bumper positioning device and a bumper positioning device, the cantilever support is connected with the supporting support and used for being connected with a bumper. Wherein a length direction positioning structure used for positioning the supporting bracket and the cantilever bracket in the length direction of the vehicle, and a width direction positioning structure used for positioning the supporting bracket and the cantilever bracket in the width direction of the vehicle are arranged between the supporting bracket and the cantilever bracket; and the height direction positioning structure is used for positioning the supporting bracket and the cantilever bracket along the height direction of the vehicle. By means of the bumper positioning device, installation of the bumper on the vehicle body can be positioned in the width direction, the length direction and the height direction of the vehicle at the same time, the positioning precision of the bumper is improved, the inherent frequency of the bumper is improved, and the bumper is prevented from shaking in the vehicle running process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a bumper positioning device and a vehicle. Background Art

[0002] Traditional car bumpers are mainly used to absorb and mitigate external impact forces and protect the front and rear parts of the car body. Now we have entered the era of smart cars. In addition to the above safety protection functions, bumpers also need to carry the task of installing high-precision parts such as ultrasonic radars, high-definition cameras, millimeter-wave radars, and laser radars, which has higher requirements for the installation accuracy of bumpers.

[0003] The existing bumper is supported on the vehicle body structure by only one cantilever beam, which can only realize the positioning of the bumper along the height direction of the vehicle. The lack of positioning in other directions leads to low positioning accuracy of the bumper. In addition, the single cantilever beam structure cannot realize the fixation of the bumper in the middle, which may cause the vehicle to shake during driving and affect the accuracy of ultrasonic radar, high-definition camera, millimeter-wave radar, and laser radar, and cannot meet the needs of smart cars. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a bumper positioning device and a vehicle, which are used to solve the problem that the prior art can only realize the positioning of the bumper along the height direction of the vehicle, resulting in low bumper installation accuracy.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a bumper positioning device, comprising:

[0006] A support bracket for connecting the vehicle body;

[0007] a cantilever bracket connected to the support bracket and used for connecting the bumper;

[0008] Among them, a length direction positioning structure for positioning the support bracket and the cantilever bracket along the length direction of the vehicle, a width direction positioning structure for positioning the support bracket and the cantilever bracket along the width direction of the vehicle, and a height direction positioning structure for positioning the support bracket and the cantilever bracket along the height direction of the vehicle are arranged between the support bracket and the cantilever bracket.

[0009] Optionally, the supporting bracket includes a supporting bracket body, and the cantilever bracket includes a cantilever bracket body, a lap joint is provided on one of the supporting bracket body and a receiving portion is provided on the other, the lap joint is overlapped on the receiving portion, and opposite sides of the lap joint and the receiving portion are respectively matching lap joint surfaces and receiving surfaces, the lap joint surfaces and the receiving surfaces form the height direction positioning structure, and when the lap joint surfaces and the receiving surfaces abut against each other, the supporting bracket and the cantilever bracket are positioned along the height direction of the vehicle.

[0010] Optionally, the receiving portion is arranged on the supporting bracket body, the overlapping portion is arranged on the cantilever bracket body, the overlapping surface and the receiving surface are inclined surfaces with the same inclination angle, and a plurality of connecting protrusions arranged around the receiving portion are arranged on the side of the supporting bracket body facing the cantilever bracket, and a weakened hole penetrating along the length direction of the vehicle is arranged between two adjacent connecting protrusions.

[0011] Optionally, two width-direction positioning blocks are relatively arranged on the supporting surface along the length direction of the vehicle, and the two width-direction positioning blocks have relative first width-direction positioning surfaces. A width-direction positioning area is formed between the two first width-direction positioning surfaces. The overlapping portion is connected within the width-direction positioning area, and the two sides of the overlapping portion along the length direction of the vehicle are second width-direction positioning surfaces. The two first width-direction positioning surfaces respectively cooperate with the two second width-direction positioning surfaces to form the width-direction positioning structure.

[0012] Optionally, the receiving portion has a length direction positioning surface facing the cantilever bracket, and a length direction positioning protrusion matching the length direction positioning surface is provided on the side of the cantilever bracket body facing the supporting bracket, and the length direction positioning surface and the length direction positioning protrusion form the length direction positioning structure, and when the length direction positioning surface and the length direction positioning protrusion are abutted against each other, the supporting bracket and the cantilever bracket are positioned along the length direction of the vehicle.

[0013] Optionally, the bumper positioning device also includes a connecting bracket, the supporting bracket and the cantilever bracket are connected through the connecting bracket, the supporting bracket is provided with a first connecting hole that penetrates along the length direction of the vehicle, and the inner side wall of the first connecting hole is provided with an inwardly folded hook, the connecting bracket includes a first connecting head for connecting to the supporting bracket, and a second connecting head for connecting to the cantilever bracket, the first connecting head extends into the first connecting hole, and the outer side wall of the first connecting head is provided with a first pit, the first pit is arranged corresponding to the hook, and when the hook is engaged in the first pit, the connecting bracket and the supporting bracket are installed in place.

[0014] Optionally, a baffle extending along the height direction of the vehicle is provided on the outer side wall of the first connecting head, and the first pit is formed between the baffle and the second connecting head. The first connecting head is respectively abutted against the relative inner side walls of the first connecting hole on both sides along the length direction of the vehicle to position the supporting bracket and the connecting bracket along the width direction of the vehicle.

[0015] Optionally, the baffles are multiple and axially arranged along the outer wall of the first connector, a second pit is formed between two adjacent baffles, the first pit is formed between the baffle close to the second connector and the second connector, and each of the second pits forms a multi-stage locking structure.

[0016] Optionally, the cantilever bracket is provided with at least one second connecting hole penetrating along the length direction of the vehicle, the connecting bracket also includes a connecting plate for connecting to the first connecting head, the second connecting head includes at least one guide column arranged on the side of the connecting plate away from the first connecting head, at least one guide column is respectively arranged in a one-to-one correspondence with at least one second connecting hole, and a guide spring sheet for cooperating with the second connecting hole is provided on at least one side outer wall of the guide column.

[0017] The utility model also provides a vehicle, comprising the bumper positioning device as described above.

[0018] As described above, the bumper positioning device of the utility model has the following beneficial effects:

[0019] The bumper positioning device includes a support bracket and a cantilever bracket, the support bracket is used to connect with the vehicle body, and the cantilever bracket is used to connect with the bumper, that is, the bumper is installed on the vehicle body through the bumper positioning device. A length direction positioning structure for positioning the support bracket and the cantilever bracket along the length direction of the vehicle is provided between the support bracket and the cantilever bracket, so as to position the connection between the bumper and the vehicle body along the length direction of the vehicle. A width direction positioning structure for positioning the support bracket and the cantilever bracket along the width direction of the vehicle is provided between the support bracket and the cantilever bracket, so as to position the connection between the bumper and the vehicle body along the width direction of the vehicle. A height direction positioning structure for positioning the support bracket and the cantilever bracket along the height direction of the vehicle is provided between the support bracket and the cantilever bracket, so as to position the connection between the bumper and the vehicle body along the height direction of the vehicle. The bumper positioning device can simultaneously position the installation of the bumper on the vehicle body along the width direction, length direction and height direction of the vehicle, thereby improving the positioning accuracy of the bumper, improving the natural frequency of the bumper, and avoiding the bumper from shaking during the driving process of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic structural diagram of a bumper positioning device according to an embodiment of the utility model;

[0021] Figure 2 This is a front view of a support bracket according to an embodiment of the utility model;

[0022] Figure 3 A three-dimensional diagram of a support bracket according to an embodiment of the utility model;

[0023] Figure 4 This is a front view of a cantilever support according to an embodiment of the utility model;

[0024] Figure 5 A three-dimensional diagram of a cantilever bracket according to an embodiment of the utility model;

[0025] Figure 6 This is a three-dimensional view of the connecting bracket of an embodiment of the utility model from an angle;

[0026] Figure 7 A three-dimensional view of the connecting bracket of the embodiment of the utility model from another angle;

[0027] Figure 8 A side view of a bumper positioning device according to an embodiment of the utility model;

[0028] Fig. 9 for Figure 8 Sectional view at AA;

[0029] Fig.10 This is a front view of a bumper positioning device according to an embodiment of the utility model;

[0030] Fig.11 For the utility model embodiment Fig.10 Cross-sectional view at BB;

[0031] Fig.12 For the utility model embodiment Fig.10 FF section view;

[0032] Fig.13 A three-dimensional diagram of a bumper positioning device according to an embodiment of the utility model;

[0033] Fig.14 For the utility model embodiment Fig.13 Cross-sectional view at CC;

[0034] Fig.15 It is a schematic diagram of the installation of the cantilever bracket and the connecting bracket and the bumper according to the embodiment of the utility model;

[0035] Fig.16 This is a schematic diagram of the installation of the support bracket and the vehicle body according to an embodiment of the utility model.

[0036] Part Number Description

[0037] 1-support bracket; 11-supporting part; 111-supporting surface; 112-width direction positioning block; 112a-first width direction positioning surface; 12-support bracket body; 121-first connecting hole; 122-length direction positioning surface; 123-weakened hole; 124-connecting protrusion; 125-first mounting hole; 126-hook;

[0038] 2-cantilever bracket; 21-lap joint; 22-cantilever bracket body; 211-lap joint surface; 212-second width direction positioning surface; 221-second connecting hole; 222-length direction positioning protrusion; 223-second mounting hole; 224-positioning hole; 225-U-shaped protrusion;

[0039] 3-connecting bracket; 31-first connecting head; 311-baffle; 311a-first pit; 311b-second pit; 32-second connecting head; 321-connecting plate; 322-guide column; 321a-guide spring;

[0040] 4-bumper; 5-body. DETAILED DESCRIPTION

[0041] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0042] It should be noted that the diagrams provided in the present embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the layout of the components may be more complicated. The structure, proportion, size, etc. shown in the diagrams attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0043] See also Figure 1 , Fig.15 and Fig.16 , this embodiment provides a bumper positioning device, which is arranged between the bumper 4 and the vehicle body 5, and is used to install the bumper 4 to the vehicle body 5. The bumper positioning device includes a supporting bracket 1 and a cantilever bracket 2 connected to each other, the supporting bracket 1 is used to be connected to the vehicle body 5, and the cantilever bracket 2 is used to be connected to the bumper 4. A length direction positioning structure for positioning the supporting bracket 1 and the cantilever bracket 2 along the length direction of the vehicle is provided between the supporting bracket 1 and the cantilever bracket 2, so as to position the bumper 4 and the vehicle body 5 along the length direction of the vehicle. A width direction positioning structure for positioning the supporting bracket 1 and the cantilever bracket 2 along the width direction of the vehicle is provided between the supporting bracket 1 and the cantilever bracket 2, so as to position the bumper 4 and the vehicle body 5 along the width direction of the vehicle. A height direction positioning structure for positioning the supporting bracket 1 and the cantilever bracket 2 along the height direction of the vehicle is provided between the supporting bracket 1 and the cantilever bracket 2, so as to position the bumper 4 and the vehicle body 5 along the height direction of the vehicle. The supporting bracket 1 and the cantilever bracket 2 can be connected by fasteners, or by other connection methods such as welding.

[0044] The bumper positioning device of this embodiment includes a support bracket 1 and a cantilever bracket 2. The support bracket 1 is used to connect with the vehicle body 5, and the cantilever bracket 2 is used to connect with the bumper 4, that is, the bumper 4 is installed on the vehicle body 5 through the bumper positioning device. A length direction positioning structure for positioning the support bracket 1 and the cantilever bracket 2 along the length direction of the vehicle is provided between the support bracket 1 and the cantilever bracket 2, so as to position the connection between the bumper 4 and the vehicle body 5 along the length direction of the vehicle. A width direction positioning structure for positioning the support bracket 1 and the cantilever bracket 2 along the width direction of the vehicle is provided between the support bracket 1 and the cantilever bracket 2, so as to position the connection between the bumper 4 and the vehicle body 5 along the width direction of the vehicle. A height direction positioning structure for positioning the support bracket 1 and the cantilever bracket 2 along the height direction of the vehicle is provided between the support bracket 1 and the cantilever bracket 2, so as to position the connection between the bumper 4 and the vehicle body 5 along the height direction of the vehicle. The bumper positioning device can simultaneously position the bumper 4 on the vehicle body 5 along the width direction, length direction and height direction of the vehicle, thereby improving the positioning accuracy of the bumper 4, increasing the natural frequency of the bumper 4, and preventing the bumper 4 from shaking during the driving process of the vehicle. The support bracket 1 is provided with a first mounting hole 125 that runs through the vehicle along the length direction of the vehicle in the middle position of the top of the support bracket 1, and two first mounting holes 125 are provided at the bottom of the support bracket 2, and the three first mounting holes 125 form a triangle. The support bracket 1 is installed on the vehicle body 5 through the first mounting hole 125. The cantilever bracket 2 is provided with a second mounting hole 223 that runs through the vehicle along the length direction of the vehicle in the middle position of the top of the support bracket 1, and two second mounting holes 223 are provided at the bottom of the support bracket 2, and the three second mounting holes 223 form a triangle, and a positioning hole 224 is provided above the two second mounting holes 223 at the bottom. The cantilever bracket 2 is installed on the bumper 4 through the second mounting hole 223 and the positioning hole 224. When the cantilever bracket 2 is installed on the bumper 4 , the positioning hole 224 plays a positioning role, thereby improving the installation accuracy of the cantilever bracket 2 on the bumper 2 and improving the installation efficiency of the cantilever bracket 2 .

[0045] In one embodiment, if Figures 1 to 5 , Fig. 9 , Fig.12As shown, the support bracket 1 includes a support bracket body 12, and the cantilever bracket 2 includes a cantilever bracket body 22. A lap joint 21 is provided on one of the support bracket body 12 and the cantilever bracket body 22, and a receiving portion 11 is provided on the other. The lap joint 21 and the receiving portion 11 are arranged opposite to each other, and the lap joint 21 overlaps the top surface of the receiving portion 11. The opposite sides of the lap joint 21 and the receiving portion 11 are respectively a matching lap joint surface 211 and a receiving surface 111, that is, the bottom surface of the lap joint 21 is the lap joint surface 211, and the top surface of the receiving portion 11 is the receiving surface 111. The lap joint surface 211 and the receiving surface 111 form a height direction positioning structure. When the lap joint surface 211 and the receiving surface 111 are in contact, the support bracket 1 and the cantilever bracket 2 are positioned along the height direction of the vehicle. The receiving portion 11 protrudes from the opposite side of the supporting bracket 1 or the cantilever bracket 2, and the overlapping portion 21 also protrudes from the opposite side of the supporting bracket 1 or the cantilever bracket 2. The overlapping portion 21 and the receiving portion 11 have simple structures and good positioning effect in the height direction, so that the bumper 4 is positioned on the vehicle body 5 with high accuracy in the height direction.

[0046] In one embodiment, if Figures 1 to 5 , Fig. 9 , Fig.12 As shown, the receiving portion 11 is arranged on the side of the support bracket body 12 facing the cantilever bracket 2, and the overlapping portion 21 is arranged on the side of the cantilever bracket body 22 facing the support bracket 1. The receiving portion 11 includes a receiving platform, and the overlapping portion 21 includes a overlapping platform. The width and height of the receiving portion 11 are smaller than the width and height of the support bracket body 12, and the width and height of the overlapping portion 21 are smaller than the width and height of the cantilever bracket body 22. When installing the bumper 4, the cantilever bracket 2 is first installed on the bumper 4, the support bracket 1 is installed on the vehicle body 5, and then the cantilever bracket 2 is installed on the support bracket 1. Therefore, during installation, the overlapping portion 21 of the cantilever bracket 2 is placed on the receiving portion 11 of the support bracket 1 located below it, which reduces the difficulty and labor of the workers in assembly and facilitates the installation and positioning work.

[0047] In one embodiment, if Figures 1 to 5 , Fig. 9 , Fig.12 As shown, the longitudinal cross-sections of the support bracket body 12 and the cantilever bracket body 22 along the width direction of the vehicle are both rectangular, and the corners are all rounded. The two side edges of the bottom of the cantilever bracket body 22 extend in the width direction of the vehicle and form two mounting ears, and the second mounting hole 223 and the positioning hole 224 are both set on the mounting ears. The setting of the mounting ears increases the contact area between the cantilever bracket body 22 and the bumper 4, and improves the connection strength and connection stability between the cantilever bracket 2 and the bumper 4.

[0048] In one embodiment, if Figures 1 to 5 , Fig. 9 , Fig.12 As shown, the overlapping surface 211 and the receiving surface 111 are inclined surfaces with the same inclination angle, the overlapping surface 211 is an inclined surface whose height gradually decreases along the direction close to the cantilever bracket 2, and the receiving surface 111 is an inclined surface whose height gradually increases along the direction close to the supporting bracket 1. The above-mentioned setting method plays a guiding role, facilitating the installation of the overlapping part 21 to the receiving part 11, that is, facilitating the installation between the supporting bracket 1 and the cantilever bracket 2, and improving the installation efficiency.

[0049] In one embodiment, if Figures 1 to 5 , Figure 8 , Fig.13 , Fig.14 As shown, two width direction positioning blocks 112 are arranged on the receiving surface 111 in the vehicle length direction, and the two width direction positioning blocks 112 can be arranged on the two side edges of the receiving surface 111 in the vehicle length direction. The opposite sides of the two width direction positioning blocks 112 are first width direction positioning surfaces 112a, and a width direction positioning area is formed between the two first width direction positioning surfaces 112a. The overlapping portion 21 extends into the width direction positioning area, and the two sides of the overlapping portion 21 in the vehicle length direction are second width direction positioning surfaces 212. The two first width direction positioning surfaces 112a are arranged one by one with the two second width direction positioning surfaces 212 and cooperate with each other, and the two first width direction positioning surfaces 112a and the two second width direction positioning surfaces 212 form a width direction positioning structure. When one of the first width direction positioning surfaces 112a abuts against one of the second width direction positioning surfaces 212, the other first width direction positioning surface 112a abuts against the other second width direction positioning surface 212. That is, when the overlap portion 21 extends into the width direction positioning area, the two first width direction positioning surfaces 112a respectively abut against the two second width direction positioning surfaces 212 to position the support bracket 1 and the cantilever bracket 2 along the vehicle width direction, thereby positioning the bumper 4 and the body 5 along the vehicle width direction.

[0050] In one embodiment, if Figure 8 , Fig.13 , Fig.14 As shown, the two first width direction positioning surfaces 112a are bent in directions away from each other to facilitate the overlapping portion 21 to extend between the two width direction positioning blocks 112 to play a guiding role.

[0051] In one embodiment, if Figure 8 , Fig.13 , Fig.14As shown, the first width direction positioning surface 112a and the second width direction positioning surface 212 can be inclined surfaces with the same inclination angle. Specifically, the distance between the two first width direction positioning surfaces 112a gradually increases in the direction close to the cantilever bracket 2; the distance between the two second width direction positioning surfaces 212 gradually decreases in the direction close to the support bracket 1, so as to facilitate the overlap portion 21 to extend between the two width direction positioning blocks 112, playing a guiding role.

[0052] In one embodiment, if Figures 2 to 5 , Fig. 9 , Fig.11 As shown, the receiving portion 11 has a longitudinal positioning surface 122 facing the cantilever bracket 2, and a longitudinal positioning protrusion 222 matching the longitudinal positioning surface 122 is provided on the side of the cantilever bracket body 22 facing the supporting bracket 1, and the longitudinal positioning protrusion 222 is arranged corresponding to the longitudinal positioning surface 122. The longitudinal positioning surface 122 and the longitudinal positioning protrusion 222 form a longitudinal positioning structure, and when the longitudinal positioning surface 122 and the longitudinal positioning protrusion 222 abut against each other, the supporting bracket 1 and the cantilever bracket 2 are positioned along the longitudinal direction of the vehicle. The longitudinal positioning protrusion 222 is arranged below the lap joint 21, and the longitudinal positioning protrusion 222 is a rectangular frame with one side opened along the longitudinal direction of the vehicle. A plurality of sub-protrusions are arranged on the top of the longitudinal positioning protrusion 222 along the height direction of the vehicle, and each sub-protrusion is arranged at intervals along the width direction of the vehicle to improve the positioning accuracy along the longitudinal direction of the vehicle. The above structure can not only accurately achieve positioning along the length direction of the vehicle, but the length direction positioning protrusion 222 can also act as a reinforcing rib, thereby increasing the structural strength of the surface of the cantilever bracket 2 where the length direction positioning protrusion 222 is located, so that the cantilever bracket 2 can withstand a greater load when impacted, thereby improving its anti-collision ability.

[0053] In one embodiment, if Figure 6 , Figure 7 , Fig. 9 , Fig.11 As shown, the bumper positioning device also includes a connecting bracket 3, which is arranged between the supporting bracket 1 and the cantilever bracket 2. The supporting bracket 1 and the cantilever bracket 2 are connected through the connecting bracket 3, and the connecting bracket 3 has the function of fixing the supporting bracket 1 and the cantilever bracket 2. The setting of the connecting bracket 3 enables the bumper positioning device to not only have the function of positioning, but also has the function of fixing the bumper 4 and the vehicle body 5, thereby improving the stability of the bumper 4 installed on the vehicle body 5 and reducing the shaking of the bumper 4.

[0054] In one embodiment, if Figure 2 , Figure 6 , Figure 7 , Fig. 9As shown, a first connection hole 121 penetrating along the length direction of the vehicle is provided on the side of the support bracket 1 facing the cantilever bracket 2, that is, a first connection hole 121 penetrating along the length direction of the vehicle is provided on the side of the receiving portion 11 facing the cantilever bracket 2. A hook 126 extending toward the cantilever bracket 2 and folding inward is provided on the inner side wall of the first connection hole 121, and the connection bracket 3 includes a first connector 31 for connecting with the support bracket 1 and a second connector 32 for connecting with the cantilever bracket 2, the first connector 31 is provided toward the support bracket 1, and the second connector 32 is provided toward the cantilever bracket 2. The first connector 31 extends into the first connection hole 121, and a first recess 311a is provided on the outer peripheral side wall of the first connector 31, and the first recess 311a is provided corresponding to the hook 126. When the hook 126 is engaged in the first recess 311a, the connection bracket 3 and the support bracket 1 are installed in place. By arranging the hook 126 in the first recess 311a, the support bracket 1 and the cantilever bracket 2 can be limited along the length direction of the vehicle, thereby improving the connection strength and accuracy of the support bracket 1 and the cantilever bracket 2 along the length direction of the vehicle.

[0055] In one embodiment, if Figure 2 , Figure 6 , Figure 7 , Fig. 9 As shown, the first end of the first connector 31 is connected to the second connector 32, and the second end extends into the first connection hole 121. The first end of the first connector 31 is a cross-shaped conical connector. The above structure can play a guiding role when the first end of the first connector 31 extends into the first connection hole 121, and each conical surface is a guiding surface.

[0056] In one embodiment, if Figure 2 , Figure 6 , Figure 7 , Fig. 9 As shown, at least one baffle 311 extending in the vehicle height direction is provided on the outer peripheral side wall of the first connector 31, and the connecting bracket 3 also includes a connecting plate 321 provided between the first connector 31 and the second connector 32. When there is one baffle 311, a first recess 311a is formed between the side of the baffle 311 facing the connecting plate 321 and the side of the connecting plate 321 facing the baffle 311. The baffle 311 extends upward and downward in the vehicle height direction, and the top and bottom of the baffle 311 both protrude from the outer side wall of the first connector 31, thereby increasing the depth of the first recess 311a and the matching effect of the first recess 311a and the hook 126, thereby increasing the limiting effect of the supporting bracket 1 and the cantilever bracket 2 in the vehicle length direction.

[0057] In one embodiment, if Figure 2 , Figure 3 , Figure 6 , Figure 7 , Fig. 9 As shown, there are two hooks 126 arranged opposite to each other along the circumferential direction of the inner wall of the first connecting hole 121, so that the two hooks 126 lock the first connecting head 31 along the length direction of the vehicle from two opposite directions, thereby improving the locking effect of the first connecting head 31 along the length direction of the vehicle.

[0058] In one embodiment, if Figure 6 , Figure 7 , Fig. 9 As shown, the baffles 311 are arranged axially along the outer side wall of the first connector 31, that is, the baffles 311 are arranged on the outer side wall of the first connector 31 along the length direction of the vehicle. Second recesses 311b are formed between the opposite sides of two adjacent baffles 311, and each second recess 311b forms a multi-stage locking structure. A first recess 311a is formed between the baffle 311 close to the second connector 32 and the second connector 32. When the connecting bracket 3 is separated from the supporting bracket 1, the hook 126 needs to withdraw from the first recess 311a and the second recess 311b in sequence. The design of multiple second recesses 311b can form a multi-stage locking structure, further restricting the hook 126 from withdrawing from the second recess 311b, thereby increasing the stability of the connection between the connecting bracket 3 and the supporting bracket 1. It also avoids the problem of the hook 126 withdrawing from the second recess 311b due to misoperation, which leads to the failure of the connection between the connecting bracket 3 and the supporting bracket 1.

[0059] In one embodiment, if Figure 6 , Figure 7 , Fig. 9 As shown, the side of the baffle 311 facing the cantilever bracket 2 is a plane, the side of the baffle 311 facing the support bracket 1 is an inclined surface, and the thickness of the baffle 311 gradually increases along the axial direction close to the first connector 31. The above-mentioned inclined surface can play a guiding role when the hook 126 enters the second pit 311b, making it convenient for the hook 126 to enter the second pit 311b. The plane setting can prevent the hook 126 from exiting the second pit 311b, thereby playing a role in locking the connecting bracket 3 and the support bracket 1 along the length direction of the vehicle.

[0060] In one embodiment, the two sides of the first connector 31 along the length direction of the vehicle respectively abut against the two opposite inner side walls of the first connection hole 121, so as to further position the support bracket 1 and the connection bracket 3 along the width direction of the vehicle. When the first connector 31 extends into the first connection hole 121, the two side outer side walls of the first connector 31 along the length direction of the vehicle respectively abut against the two opposite inner side walls of the first connection hole 121, which plays a role in assisting the positioning of the bumper 4 and the body 5 along the width direction of the vehicle.

[0061] In one embodiment, if Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig.10 , Fig.11 As shown, the cantilever bracket 2 is provided with at least one second connection hole 221 that runs through the length direction of the vehicle, that is, the cantilever bracket body 22 is provided with at least one second connection hole 221 that runs through the length direction of the vehicle. The second connector 32 includes at least one guide column 322 that is arranged on the side of the connecting plate 321 away from the first connector 31. Each guide column 322 is arranged in a one-to-one correspondence with each second connection hole 221. A guide spring 321a for matching with the second connection hole 221 is arranged on at least one side of the outer wall of the guide column 322. When the guide column 322 extends into the second connection hole 221 and the side of the guide spring 321a away from the cantilever bracket 2 abuts against the inner wall of the second connection hole 221, the cantilever bracket 2 and the connection bracket 3 are installed in place, and the cantilever bracket 2 and the connection bracket 3 are limited along the length direction of the vehicle.

[0062] In one embodiment, if Figure 4 , Figure 6 , Figure 7 As shown, the number of the second connection holes 221 and the number of the guide columns 322 are both three, and they respectively form two corresponding triangles, thereby improving the connection stability between the cantilever bracket 2 and the connection bracket 3.

[0063] In one embodiment, if Figure 6 , Figure 7 As shown, the guide column 322 is rectangular, and each outer wall of the guide column 322 close to the end of the cantilever bracket 2 is inclined toward the center of the rectangular end surface, and forms four guiding inclined surfaces, which play a guiding role when the guide column 322 enters the second connecting hole 221.

[0064] In one embodiment, the support bracket 1 and the cantilever bracket 2 are hollow inside to reduce weight and make the vehicle as a whole lighter.

[0065] In one embodiment, if Figure 2 and Figure 3 As shown, a plurality of connecting protrusions 124 arranged around the edge of the receiving portion 11 are provided on the side of the supporting bracket body 12 facing the cantilever bracket 2, and a weakened hole 123 penetrating along the length direction of the vehicle is provided between two adjacent connecting protrusions 124. When the vehicle collision reaches the set collision force, the supporting bracket 1 breaks along each connecting protrusion 124, playing a buffering role, thereby protecting the pedestrians hit by the collision, and at the same time, it can also reduce the damage to the vehicle body 5 and reduce the maintenance cost.

[0066] In one embodiment, if Figure 4 and Figure 5As shown, a U-shaped protrusion 225 is provided on the side of the cantilever bracket body 22 facing the supporting bracket 1, and the U-shaped protrusion 225 abuts against the side of the connecting plate 321 away from the first connecting head 31. When the cantilever bracket 2 is connected to the connecting bracket 3, the U-shaped protrusion 225 abuts against the side of the connecting plate 321 away from the first connecting head 31, and the connecting bracket 3 cannot continue to move toward the cantilever bracket 2, and the connecting bracket 3 is positioned along the length direction of the vehicle.

[0067] This embodiment also provides a vehicle, including a vehicle body 5, a bumper 4 and a bumper positioning device, wherein the bumper positioning device connects the vehicle body 5 and the bumper 4, and the support bracket 1 can be connected to the vehicle body 5 by fasteners or can be integrally formed with the vehicle body 5. The cantilever bracket 2 can be connected to the bumper 4 by fasteners or can be integrally formed with the bumper 4.

[0068] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A bumper positioning device, characterized in that: include: A support bracket for connecting the vehicle body; a cantilever bracket connected to the support bracket and used for connecting the bumper; Among them, a length direction positioning structure for positioning the support bracket and the cantilever bracket along the length direction of the vehicle, a width direction positioning structure for positioning the support bracket and the cantilever bracket along the width direction of the vehicle, and a height direction positioning structure for positioning the support bracket and the cantilever bracket along the height direction of the vehicle are arranged between the support bracket and the cantilever bracket.

2. The bumper positioning device according to claim 1, characterized in that: The supporting bracket includes a supporting bracket body, and the cantilever bracket includes a cantilever bracket body. A lap joint is provided on one of the supporting bracket body and a receiving portion is provided on the other. The lap joint is overlapped on the receiving portion. The opposite sides of the lap joint and the receiving portion are respectively matched lap joint surfaces and receiving surfaces. The lap joint surfaces and the receiving surfaces form the height direction positioning structure. When the lap joint surfaces and the receiving surfaces abut against each other, the supporting bracket and the cantilever bracket are positioned along the height direction of the vehicle.

3. The bumper positioning device according to claim 2, characterized in that: The receiving portion is arranged on the supporting bracket body, the overlapping portion is arranged on the cantilever bracket body, the overlapping surface and the receiving surface are inclined surfaces with the same inclination angle, and a plurality of connecting protrusions arranged around the receiving portion are arranged on the side of the supporting bracket body facing the cantilever bracket, and a weakened hole penetrating along the length direction of the vehicle is arranged between two adjacent connecting protrusions.

4. The bumper positioning device according to claim 2 or 3, characterized in that: Two width-direction positioning blocks are relatively arranged on the supporting surface along the length direction of the vehicle, and the two width-direction positioning blocks have relative first width-direction positioning surfaces. A width-direction positioning area is formed between the two first width-direction positioning surfaces. The overlapping portion is connected within the width-direction positioning area, and the two sides of the overlapping portion along the length direction of the vehicle are second width-direction positioning surfaces. The two first width-direction positioning surfaces respectively cooperate with the two second width-direction positioning surfaces to form the width-direction positioning structure.

5. The bumper positioning device according to claim 3, characterized in that: The receiving portion has a length direction positioning surface facing the cantilever bracket, and a length direction positioning protrusion matching the length direction positioning surface is provided on the side of the cantilever bracket body facing the supporting bracket. The length direction positioning surface and the length direction positioning protrusion form the length direction positioning structure. When the length direction positioning surface and the length direction positioning protrusion are against each other, the supporting bracket and the cantilever bracket are positioned along the length direction of the vehicle.

6. The bumper positioning device according to claim 1, characterized in that: The bumper positioning device also includes a connecting bracket, the supporting bracket and the cantilever bracket are connected through the connecting bracket, the supporting bracket is provided with a first connecting hole that penetrates along the length direction of the vehicle, the inner side wall of the first connecting hole is provided with an inwardly folded hook, the connecting bracket includes a first connecting head for connecting with the supporting bracket, and a second connecting head for connecting with the cantilever bracket, the first connecting head extends into the first connecting hole, the outer side wall of the first connecting head is provided with a first pit, the first pit is arranged corresponding to the hook, and when the hook is engaged in the first pit, the connecting bracket and the supporting bracket are installed in place.

7. The bumper positioning device according to claim 6, characterized in that: A baffle plate extending along the height direction of the vehicle is arranged on the outer side wall of the first connecting head, and the first pit is formed between the baffle plate and the second connecting head. The first connecting head is respectively abutted against the relative inner side walls of the first connecting hole on both sides along the length direction of the vehicle to position the supporting bracket and the connecting bracket along the width direction of the vehicle.

8. The bumper positioning device according to claim 7, characterized in that: The baffles are multiple and axially arranged along the outer wall of the first connector, and second pits are formed between two adjacent baffles. The first pit is formed between the baffle close to the second connector and the second connector, and each of the second pits forms a multi-stage locking structure.

9. The bumper positioning device according to claim 6, characterized in that: The cantilever bracket is provided with at least one second connecting hole penetrating along the length direction of the vehicle, the connecting bracket also includes a connecting plate for connecting to the first connecting head, the second connecting head includes at least one guide column arranged on the side of the connecting plate away from the first connecting head, at least one guide column is arranged in a one-to-one correspondence with at least one second connecting hole, and a guide spring sheet for cooperating with the second connecting hole is arranged on at least one side outer wall of the guide column.

10. A vehicle, characterized in that: The invention comprises a bumper positioning device as claimed in any one of claims 1 to 9.

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