CN111002933B

CN111002933B - Connecting structure of bumper

Info

Publication number: CN111002933B
Application number: CN201911250335.8A
Authority: CN
Inventors: 肖阳; 谢寿琴; 林祥辉
Original assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Ningbo Geely Automobile Research and Development Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-09-14
Anticipated expiration: 2039-12-09
Also published as: CN111002933A

Abstract

The invention provides a connecting structure of a bumper, and belongs to the technical field of automobiles. It has solved the not high problem of connection stability of current connection structure of bumper. This connection structure of bumper includes the projection that the protrusion formed on the trim, setes up connecting hole one on the bumper and setes up connecting hole two on the grid, and this connection structure still includes the connecting piece, and the tip of projection wears to establish connecting hole one and connecting hole two in proper order and connects bumper, grid and trim through the connecting piece, still is equipped with the guide part that can lead to the projection on the bumper. This connection structure of bumper can improve the stability of installation when guaranteeing the installation convenience.

Description

Connecting structure of bumper

Technical Field

The invention belongs to the technical field of automobiles, and relates to a connecting structure of a bumper.

Background

With the continuous improvement of the quality of life of people, more and more automobiles are adopted as travel tools, and the cost performance of the automobiles is the key point of attention of people during purchasing. The existing automobile front bumper is connected with the grille in a clamping mode, so that one end of the front bumper is bent to form a bending section, and the bending section is provided with a clamping hook. The setting of this structure has led to the bumper and has adopted the drawing of patterns of pushing up the drawing of patterns to one side and straight top drawing of patterns to go on simultaneously, just can accomplish the drawing of patterns to the bumper for the drawing of patterns of bumper is complicated, and the cost of manufacture of bumper is higher.

In view of the above problems, various connecting structures of bumpers, grills and trim have been developed:

for example, the chinese patent application (patent application No. 201611064325.1) discloses an assembly structure including a grid, an ornament, and a bumper, wherein the bumper has a post, the ornament and the grid have screw holes, and the bumper, the ornament and the grid are fixed by screws sequentially inserted into the post and the screw holes.

Above-mentioned structure makes the connecting piece on the bumper, only need a connecting portion, and seted up the screw hole on connecting portion can, and need not the bumper appear being the bending of type in the junction, consequently the drawing of patterns of bumper only need adopt the oblique top drawing of patterns can, but because the screw will stretch into projection and two screwed holes in proper order, consequently lead to the bumper at the vehicle in the driving process, grid and trim take place to rock and drive the screw and remove, the screw receives a plurality of power of shaking, make the screw pine take off easily, the security of driving has been reduced. The mode that the conventionality adopted is to add several screws between bumper, grid and trim and connect, improve the stability of connecting, but at the in-process that whole car was arranged, need to change the structure of bumper, grid and trim, make bumper, grid and trim three contact the place more, just can realize the installation and the connection of a plurality of screws, but this design causes the influence to the installation space of other spare parts in the automobile body easily, and adopt a plurality of screws to install, make the installation of bumper, grid and trim inconvenient, the installation effectiveness has been reduced.

And be equipped with the projection on the trim, all seted up the screw hole on bumper and grid, the projection passes two screw holes in proper order, internal thread has been seted up on the inside wall of projection, the bumper is realized with screw threaded connection's mode to the projection, the installation and the fixed of grid and trim, make when the installation, need pass the screw hole with the projection in proper order earlier, the inconvenience of installation has been caused, in order not to guarantee the purpose that the installation convenience will improve the installation stability again, technical personnel in the art can not adopt above-mentioned mode to the bumper usually, grid and trim are installed.

Disclosure of Invention

The invention aims to provide a connecting structure of a bumper aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to improve the stability of installation while guaranteeing the installation convenience.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a connection structure of bumper, includes the projection that the protrusion formed on the trim, seting up connecting hole one on the bumper and seting up connecting hole two on the grid, its characterized in that, this connection structure still includes the connecting piece, the tip of projection is worn to establish connecting hole one and connecting hole two in proper order and is connected bumper, grid and trim through the connecting piece, still be equipped with the guide part that can lead to the projection on the bumper.

The working principle is as follows: firstly, the convex column sequentially passes through the first connecting hole and the second connecting hole, the bumper and the grating are sequentially sleeved on the convex column of the decorative strip, then the connecting piece is connected with the convex column, the bumper, the grating and the decorative strip are fixedly connected, the installation of the bumper, the grating and the decorative strip is completed, the convex column sequentially passes through the first connecting hole and the second connecting hole, only the convex column is connected with the connecting piece, the connecting piece can not receive swinging force from the bumper, the grating and the decorative strip in three different directions and can enable the connecting piece to move relative to the bumper, the grating and the decorative strip, the connecting piece only receives swinging force of the decorative strip, only one swinging force acts on the connecting piece, the connecting piece moves along with the decorative strip, the connecting piece can not move relative to the decorative strip at the moment, and further is not easy to be separated from the convex column of the decorative strip, so that the stability of the connection of the connecting piece and the decorative strip is further improved, and only the convex column is connected with the connecting piece, the bumper and the grating are not in contact with the connecting piece, so that the connecting piece, the bumper and the grating cannot be influenced mutually, and the bumper and the grating are more convenient and simpler to arrange; the guide part that sets up on can be further through the bumper, the bumper can quick cover establish on the projection, bumper and trim can fix a position fast, improve the efficiency that the projection stretched into connecting hole one, are connected projection and connecting piece again, and then can also guarantee the stability of its installation when guaranteeing bumper, grid and trim installation convenience.

In the connection structure of foretell bumper, the mounting hole has been seted up on the projection, the one end embedding mounting hole of connecting piece is connected with the projection in the mounting hole, the one end that the projection was worn to establish in connecting hole two is the location end, the other end of projection is spacing end, the guide part is the ring form, the internal diameter of guide part is from location end to spacing end direction crescent.

The mounting hole has been seted up on the projection, the one end embedding mounting hole of connecting piece this moment to be connected with the projection, when the locating end is passing the bumper, the internal diameter of guide part is from locating end to spacing end crescent this moment, and the locating end passes in the connecting hole of bumper more easily, avoids the dead condition of guide part inside wall card, has improved the convenience of bumper and trim installation.

In the connecting structure of the bumper, the grid is provided with the annular guide rib, and the inner diameter of the guide rib is gradually increased from the positioning end to the limiting end.

The arrangement of the guide ribs enables the grid to be quickly sleeved on the convex columns, the grid and the decorative strips can be quickly positioned, the efficiency that the convex columns stretch into the second connecting holes is improved, and the installation convenience of the grid and the decorative strips is improved.

In the connecting structure of the bumper, the limiting end is provided with the baffle, the end part of the connecting piece is provided with the limiting plate, and the bumper and the grille are positioned between the baffle and the limiting plate.

Through the setting of baffle and limiting plate for bumper and grid only need set up between baffle and limiting plate can, reduced the processing demand to bumper and grid, bumper and baffle and/or grid and limiting plate between all can have the clearance this moment, reduced the friction between bumper and baffle and grid and the limiting plate, improved vehicle driving's stability.

In the above bumper connecting structure, the positioning end is provided with a chamfer.

The chamfer angle is arranged, so that the guide effect is achieved, the convex column can rapidly penetrate through the first connecting hole and the second connecting hole and is connected with the connecting piece, and the convenience of mounting the decorative strip, the bumper and the grille is improved.

In the connecting structure of the bumper, the outer side wall of the convex column is attached to the hole wall of the first connecting hole and the hole wall of the second connecting hole.

When the vehicle was operated, direct action was on the projection when bumper and grid rocked, and the projection can be with the power of shaking of bumper and grid and shake the power and be the driving force, and the projection was under the effect of the driving force of bumper and grid and under the effect of self power of shaking this moment, only can take place the rocking of a direction, and the connecting piece only follows the projection and removes, further improvement the stability that connection structure set up.

In the connecting structure of the bumper, the bumper is provided with a suspended sheath, a first flanging and a second flanging, wherein the first flanging and the second flanging are arranged on two sides of the sheath, the second flanging is abutted against the grid, an included angle between the first flanging and the second flanging is less than or equal to 3 degrees.

The existing bumper adopts the design of an outer skin, a first flanging and a second flanging, wherein the outer skin is arranged on the outermost side, the second flanging is abutted against a grid, and the first flanging is connected with a bonnet.

At the moment, the bumper can be demoulded only by one oblique top, so that the angle of the alpha is set, the oblique top can smoothly complete the demoulding with the bumper, the intensity of the oblique top of the bumper is improved, the space of a mould can be reduced, the production of the bumper is more convenient, and the production cost of the bumper is reduced.

In the connecting structure of the bumper, the bumper is bent at one end, far away from the outer skin, of the second flanging to form a third flanging, an included angle between the third flanging and the second flanging is an obtuse angle, and the first connecting hole is formed in the third flanging.

The third flanging is bent in the direction away from the outer skin relatively, so that the third flanging does not influence the demolding of the bumper, the first connecting hole is formed in the third flanging, the connecting structure of the bumper does not influence the contact strength between the bumper and the oblique top, and the demolding stability of the bumper is improved.

In the above-described bumper attachment structure, the guide portion is located on the side of the third flange away from the outer skin.

The setting of guide part can give way to the top to one side, does not influence the drawing of patterns of bumper, has improved the stability of bumper drawing of patterns.

In the connecting structure of the bumper, the connecting piece is a bolt, the hole wall of the mounting hole is provided with internal threads, and one end of the bolt is embedded into the mounting hole and connected with the convex column.

The connecting piece is the bolt for the connection of projection and connecting piece is more firm, and the connecting piece adopts the spare part commonly used, is that the market is easily bought, consequently during the maintenance assembly in later stage, can buy the back assembly from the market fast, and adopts the bolt can further save connection structure's cost, reduces the installation cost of bumper, grid and trim.

In the connection structure of the bumper, the connecting piece is a rivet, and the convex column is connected with the rivet in a tight fit manner.

The arrangement of the structure enables the convex column and the connecting piece to be stably connected and fixed in a tight fit mode, and the connecting piece is more convenient and concise to install.

Compared with the prior art, the connecting structure of the bumper has the advantages that:

1. the connecting piece is the power of shaking that receives the trim, and only one is shaken the power and is used in on the connecting piece, and the connecting piece only can take place the displacement of a direction, and can not take place the pine and take off to further improvement the stability that connecting piece and trim are connected, through the guide part that sets up on the bumper, the cover that the bumper can be quick is established on the projection, bumper and trim can fix a position fast, improve bumper, grid and trim three's installation effectiveness.

2. Through the angle setting of turn-ups one and turn-ups two, the bumper just needs an oblique top just can accomplish the drawing of patterns this moment for the oblique top can be smooth accomplish the drawing of patterns with the bumper, has improved the intensity of bumper oblique top, and can reduce the space of mould, make the production convenience more of bumper, reduced the manufacturing cost of bumper.

Drawings

Fig. 1 is a partial sectional view of the connecting structure of the present bumper.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

FIG. 3 is a partial cross-sectional view of the present bumper shown removed from the mold.

In the figure, 1, a decorative strip; 11. a convex column; 111. chamfering; 112. a positioning end; 113. a limiting end; 114. mounting holes; 12. a baffle plate; 2. a bumper; 21. a first connecting hole; 22. a guide portion; 23. a skin; 24. flanging one; 25. flanging two; 26. flanging three; 3. a grid; 31. a second connecting hole; 32. a guide rib; 4. a connecting member; 41. a limiting plate; 5. and (5) obliquely ejecting.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the connecting structure of the bumper comprises a convex column 11 formed on a decorative strip 1 in a protruding mode, a first connecting hole 21 formed in a bumper 2 and a second connecting hole 31 formed in a grid 3.

Specifically, as shown in fig. 1 and 2, the connecting structure further includes a connecting member 4, the end of the protruding pillar 11 sequentially penetrates through a first connecting hole 21 and a second connecting hole 31, and the bumper 2, the grille 3 and the trim 1 are connected through the connecting member 4, and the bumper 2 is further provided with a guide portion 22 capable of guiding the protruding pillar 11.

The working principle is as follows: firstly, the convex column 11 sequentially penetrates through the connecting hole I21 and the connecting hole II 31, the bumper 2 and the grid 3 are sequentially sleeved on the convex column 11 of the decorative strip 1, then the connecting piece 4 is connected with the convex column 11, the bumper 2, the grid 3 and the decorative strip 1 are fixedly connected, the installation of the bumper 2, the grid 3 and the decorative strip 1 is completed, the convex column 11 sequentially penetrates through the connecting hole I21 and the connecting hole II 31, only the convex column 11 is connected with the connecting piece 4, the connecting piece 4 cannot be subjected to swinging force from three different directions of the bumper 2, the grid 3 and the decorative strip 1 and can move relative to the bumper 2, the grid 3 and the decorative strip 1, the connecting piece 4 only is subjected to swinging force of the decorative strip 1, the connecting piece 4 cannot move along with the decorative strip 1, the connecting piece 4 cannot move relative to the decorative strip 1 at the moment and cannot easily fall out of the convex column 11 of the decorative strip 1, so that the connecting stability of the connecting piece 4 and the decorative strip 1 are further improved, the convex columns 11 are connected with the connecting pieces 4, the bumper 2 and the grating 3 are not in contact with the connecting pieces 4, the bumper 2 and the grating 3 cannot be influenced mutually, and the bumper 2 and the grating 3 are more convenient and simpler to arrange; the guide part 22 that sets up on can be further through bumper 2, the cover that bumper 2 can be quick is established on projection 11, and bumper 2 and trim 1 can fix a position fast, improve the efficiency that projection 11 stretched into connecting hole 21, are connected projection 11 and connecting piece 4 again, and then can also guarantee the stability of its installation when guaranteeing bumper 2, grid 3 and trim 1 installation convenience.

As shown in fig. 1 and 2, a mounting hole 114 is formed on the convex column 11, one end of the connecting element 4 is embedded into the mounting hole 114 and connected with the convex column 11, one end of the convex column 11 penetrating through the connecting hole two 31 is a positioning end 112, the other end of the convex column 11 is a limiting end 113, the guide portion 22 is annular, and the inner diameter of the guide portion 22 gradually increases from the positioning end 112 to the limiting end 113; the grid 3 is provided with a circular guide rib 32, and the inner diameter of the guide rib 32 gradually increases from the positioning end 112 to the limiting end 113.

The mounting hole 114 is formed along the length direction of the stud 11 and penetrates the stud 11.

As shown in fig. 1 and 2, the limit end 112 is provided with a baffle 12, the end of the connecting member 4 is provided with a limit plate 41, and the bumper 2 and the grille 3 are positioned between the baffle 12 and the limit plate 41.

As shown in fig. 1 and 2, the positioning end 112 is provided with a chamfer 111, and the outer side wall of the convex column 11 is attached to the hole wall of the first connection hole 21 and the hole wall of the second connection hole 31.

As shown in fig. 1 and 2, the connecting member 4 is a bolt, an internal thread is provided on the wall of the mounting hole 114, and one end of the bolt is inserted into the mounting hole 114 and connected to the stud 11.

As shown in fig. 3, the bumper 2 is provided with a suspended outer skin 23, and a first flanging 24 and a second flanging 25 which are arranged on two sides of the outer skin 23, the second flanging 25 abuts against the grid 3, an included angle between the first flanging 24 and the second flanging 25 is ^ alpha, the ^ alpha is greater than or equal to 3 degrees, the bumper 2 is bent at one end of the second flanging 25, which is far away from the outer skin 23, to form a third flanging 26, the included angle between the third flanging 26 and the second flanging 25 is an obtuse angle, a first connecting hole 21 is formed in the third flanging 26, and the guide portion 22 is located on one side of the third flanging 26, which is far away from the outer skin 23.

The existing bumper 2 is designed by adopting an outer skin 23, a first flanging 24 and a second flanging 25, the outer skin 23 is arranged on the outermost side, the second flanging 25 abuts against the grille 3, and the first flanging 24 is connected with the engine cover.

In the bumper forming process, the outer skin 23 is attached to the bottom of the inclined top 5, and the first flanging 24 and the second flanging 25 can be respectively attached to two sides of the inclined top 5.

Example two

The present embodiment is basically the same as the first embodiment, and the difference is that:

the connecting piece 4 is a rivet, and the convex column 11 is connected with the rivet in a tight fit manner.

The arrangement of the structure enables the convex column 11 and the connecting piece 4 to be stably connected and fixed in a tight fit mode, and the connecting piece 4 is more convenient and concise to install.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A connecting structure of a bumper comprises a convex column (11) formed by protruding on a decorative strip (1), a first connecting hole (21) formed in the bumper (2) and a second connecting hole (31) formed in a grid (3), and is characterized by further comprising a connecting piece (4), wherein the end of the convex column (11) penetrates through the first connecting hole (21) and the second connecting hole (31) in sequence and connects the bumper (2), the grid (3) and the decorative strip (1) through the connecting piece (4), and a guide part (22) capable of guiding the convex column (11) is further arranged on the bumper (2); mounting hole (114) have been seted up on convex column (11), the one end embedding mounting hole (114) of connecting piece (4) are connected in and with convex column (11), the one end that connecting hole two (31) were worn to establish in convex column (11) is location end (112), the other end of convex column (11) is spacing end (113), guide part (22) are the ring form, the internal diameter of guide part (22) is crescent from location end (112) to spacing end (113) direction.

2. The connecting structure of the bumper as claimed in claim 1, wherein the grid (3) is provided with a circular guide rib (32), and the inner diameter of the guide rib (32) is gradually increased from the positioning end (112) to the limiting end (113).

3. The connecting structure of the bumper according to claim 1, wherein the limit end (113) is provided with a baffle (12), the end of the connecting member (4) is provided with a limit plate (41), and the bumper (2) and the grille (3) are located between the baffle (12) and the limit plate (41).

4. The connecting structure of a bumper according to claim 1, wherein the positioning end (112) is chamfered (111).

5. The connecting structure of a bumper according to any one of claims 1 to 4, wherein the outer side wall of the boss (11) is fitted to the hole wall of the first connecting hole (21) and the hole wall of the second connecting hole (31).

6. The connecting structure of the bumper as claimed in any one of claims 1 to 4, wherein the bumper (2) is provided with a suspended outer skin (23) and a first flanging (24) and a second flanging (25) which are arranged on two sides of the outer skin (23), the second flanging (25) abuts against the grid (3), an included angle between the first flanging (24) and the second flanging (25) is less than or equal to 3 degrees.

7. The connecting structure of the bumper is characterized in that the bumper (2) is bent at one end, far away from the outer skin (23), of the second flanging (25) to form a third flanging (26), an included angle between the third flanging (26) and the second flanging (25) is an obtuse angle, and the first connecting hole (21) is formed in the third flanging (26).

8. The connecting structure of a bumper according to claim 7, wherein the guide portion (22) is located on a side of the flange three (26) remote from the outer skin (23).

9. The connecting structure of a bumper according to any one of claims 1 to 4, wherein the connecting member (4) is a bolt, the wall of the mounting hole (114) is provided with an internal thread, and one end of the bolt is inserted into the mounting hole (114) and connected with the stud (11).