CN216636637U - Rear reinforcing device for automobile and automobile - Google Patents

Abstract

The utility model discloses a rear reinforcing device for an automobile and the automobile, wherein the automobile comprises a left C column, a right C column and a rear floor beam which is respectively connected with the lower end of the left C column and the lower end of the right C column, the rear reinforcing device comprises a reinforcing component, a left connecting component and a right connecting component, the reinforcing component comprises a left reinforcing section, a middle reinforcing section and a right reinforcing section which are sequentially connected along the length direction of the reinforcing component, the left connecting component is arranged on the left reinforcing section, the left reinforcing section is fixedly connected with the left C column through the left connecting component, the right connecting component is arranged on the right reinforcing section, the right reinforcing section is fixedly connected with the right C column through the right connecting component, the middle reinforcing section is fixedly connected with the rear floor beam, the reinforcing component plays a supporting role on the C columns on the two sides, the strength of an automobile body is enhanced, the torsional rigidity of the automobile body is improved, and the transverse swinging mode of the automobile body is improved, and the arrangement of the rear reinforcing device does not occupy the space of the automobile cab.

Description

Rear reinforcing device for automobile and automobile

Technical Field

The utility model relates to the technical field of automobile body structures, in particular to a rear reinforcing device for an automobile and the automobile.

Background

In the automobile body structure technology, torsional rigidity and yaw mode are two key evaluation indexes of the performance of the whole automobile. In the early stage of vehicle development, the torsional rigidity of a body-in-white is a key index of multi-wheel CAE verification. Usually, each automobile company sets a higher torsional rigidity target in the early development, and the sufficiently high torsional rigidity means that the deformation resistance of the automobile body is strong, so that the problems of abnormal sound and durability caused by low natural frequency of the automobile body and large deformation of the automobile body in the long-term running process due to insufficient rigidity are avoided; the automobile yaw mode is a key influence factor of the automobile operation performance and the safety performance, the higher yaw mode ensures the better operation performance of the automobile, and the driving pleasure of a driver is improved.

At present, most automobile host plants mainly improve the torsional rigidity of an automobile body by the following means: the material thickness of key parts is increased, and the method has the defects that the whole vehicle quality is increased, and the cost is increased; the material performance and the processing technology are improved, such as a high-pressure cast aluminum shock absorption tower, and the method increases the development difficulty and the development cost; the addition of reinforcements, such as a front deck reinforcement bar, affects the spatial arrangement of the front deck, while only performance vehicles and modified vehicles generally seek to improve in yaw mode, and the corresponding performance vehicles have a dedicated motion kit, such as a rear underbody reinforcement bar of the bmw 3 system, which makes underbody space prohibitive and costly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the method for improving the torsional rigidity and the yaw mode of the automobile body in the prior art is high in cost and difficult to arrange in space.

In order to solve the technical problem, the embodiment of the utility model discloses a rear reinforcing device for an automobile, the automobile comprises a left C column, a right C column and a rear floor beam which is respectively connected with the lower end of the left C column and the lower end of the right C column, the rear reinforcing device comprises a reinforcing component, a left connecting component and a right connecting component, the reinforcing component comprises a left reinforcing section, a middle reinforcing section and a right reinforcing section which are sequentially connected along the length direction of the reinforcing component, one end of the left reinforcing section, far away from the middle reinforcing section, is the left end of the reinforcing component, and one end of the right reinforcing section, far away from the middle reinforcing section, is the right end of the reinforcing component; left side coupling assembling sets up in left side reinforcing segment, and the reinforcement passes through left side coupling assembling and left side C post fixed connection, and right side coupling assembling sets up in right reinforcing segment, and right reinforcing segment passes through right side coupling assembling and right side C post fixed connection, the well reinforcing segment and the back floor crossbeam fixed connection of reinforcement.

Adopt above-mentioned technical scheme, the left side C post and the right side C post connection of left side coupling assembling and right side coupling assembling and car are respectively passed through to the left side reinforced section and the right side reinforced section of reinforcement part, and the well reinforced section of reinforcement part and the rear floor crossbeam fixed connection of car, and the reinforcement part plays the supporting role to the C post of both sides, has strengthened the intensity of automobile body to improve the torsional rigidity of automobile body, improved the yaw mode of automobile body. The reinforcing part is installed in C post department promptly under the trunk plaque, and to three railway carriage or compartment cars, the car inner space is not directly continuous with the trunk, does not have the back row seat and lays the problem of difficulty and invading the luggage compartment space, nevertheless to two railway carriage or compartment cars, the both ends of reinforcing part are in the spare tyre cabin plaque below, effectively avoid invading the problem of luggage compartment space and back row seat and laying the difficulty to this rear portion reinforcing apparatus's development cycle is short, has reduced the research and development cost.

The embodiment of the utility model also discloses a rear reinforcing device for an automobile, wherein the left connecting assembly comprises a left upper connecting piece, the left upper connecting piece is arranged at one end of the left reinforcing section, which is far away from the middle reinforcing section, and the left reinforcing section is fixedly connected with the left C column through the left upper connecting piece; the right side coupling assembling includes connecting piece on the right side, and the connecting piece sets up in the one end of strengthening the section in keeping away from of right side reinforcement section, and right side reinforcement section passes through connecting piece and right side C post fixed connection on the right side.

Adopt above-mentioned technical scheme, the left side of reinforcement part is strengthened the section and is passed through connecting piece fixed connection on the left side C post on the left side, the right side of reinforcement part is strengthened the section and is passed through connecting piece fixed connection on the right side C post on the right side, connecting piece and right side are gone up the connecting piece and are fixed the relative position of reinforcement part and auto body, the reinforcement part can not take place to remove easily, the installation stability of reinforcement part has been improved, and then make the improvement effect of reinforcement part to the torsional rigidity and the horizontal swing mode of auto body show more.

The embodiment of the utility model also discloses a rear reinforcing device for the automobile, wherein the left upper connecting piece comprises a left mounting box, the right upper connecting piece comprises a right mounting box, the left mounting box and the right mounting box both comprise box bodies, and each box body is provided with a rectangular bottom plate and two side walls which are connected with the bottom plate and are oppositely arranged; the left reinforcing section and the right reinforcing section are in threaded connection with the bottom plate of the box body of the left installation box and the right installation box respectively, and the left installation box and the right installation box are sleeved with the outer wall surfaces of the left C column and the right C column respectively and welded to the outer wall surfaces of the left C column and the right C column respectively.

By adopting the technical scheme, the left side installation box and the right side installation box both comprise box bodies, each box body is provided with a rectangular bottom plate and two side walls which are connected with the bottom plate and are oppositely arranged, the left reinforcing section and the right reinforcing section of the reinforcing component are respectively in bolt connection with the bottom plates of the box bodies of the left side installation box and the right side installation box, the left side installation box and the right side installation box are respectively sleeved and welded on the outer wall surfaces of the left side C column and the right side C column, the box bodies of the left side installation box and the right side installation box are respectively matched with the left side C column and the right side C column, the connecting strength is higher, the outer wall surfaces of the left side C column and the right side C column are respectively embedded between the bottom plate and the two side walls of the box bodies of the left side installation box and the right side installation box, the left side installation box and the right side installation box can not respectively displace along the cross section direction of the left side C column and the right side C column, and the installation box has the advantage of high installation stability, the left side installation box and the right side installation box are connected with the left reinforcing section and the right reinforcing section of the reinforcing component in a threaded connection mode, so that the reinforcing component is convenient to install and detach.

The embodiment of the utility model also discloses a rear reinforcing device for an automobile, the left connecting assembly further comprises a left lower connecting piece, one end of the left lower connecting piece is fixedly connected to a position between two ends of the left reinforcing section, the other end of the left lower connecting piece is fixedly connected to the left C column and is positioned between the left upper connecting piece and the rear floor beam, the right connecting assembly further comprises a right lower connecting piece, one end of the right lower connecting piece is fixedly connected to a position between two ends of the right reinforcing section, and the other end of the right lower connecting piece is fixedly connected to the right C column and is positioned between the right upper connecting piece and the rear floor beam.

By adopting the technical scheme, the left side connecting assembly is also provided with a left side lower connecting piece, one end of the left side lower connecting piece is fixedly connected between two ends of the left reinforcing section, the other end of the left side lower connecting piece is connected with the left side C column and is positioned between the left side upper connecting piece and the rear floor beam, the right side connecting assembly is also provided with a right side lower connecting piece, one end of the right side lower connecting piece is fixedly connected between two ends of the right reinforcing section, the other end of the right side lower connecting piece is connected with the right side C column and is positioned between the right side upper connecting piece and the rear floor beam, the connecting strength of the reinforcing component and the automobile is further enhanced by the left side lower connecting piece and the right side lower connecting piece, and because one ends of the left side lower connecting piece and the right side lower connecting piece are respectively arranged between two ends of the left reinforcing section and the right reinforcing section, the rigidity of the left reinforcing section and the right reinforcing section of the reinforcing component in the height direction of the automobile is enhanced, and the overall rigidity of the reinforcing component is improved, and further, the torsional rigidity and the yaw modal performance of the automobile are better enhanced.

The embodiment of the utility model also discloses a rear reinforcing device for an automobile, wherein the left lower connecting piece comprises a left support arm and a left support arm mounting box, one end of the left support arm forms one end of the left lower connecting piece, and the left support arm mounting box is fixed at the other end of the left support arm and forms the other end of the left lower connecting piece; the connecting piece includes right side support arm and right side support arm installation box under the right side, and the one end of right side support arm constitutes the one end of connecting piece under the right side, and right side support arm installation box is fixed in the other end of right side support arm to constitute the other end of connecting piece under the right side.

Left side support arm installation box, right side support arm installation box all include the box body, the box body has and is rectangular bottom plate, and meet and two lateral walls that set up relatively with the bottom plate, the bottom plate of left side support arm installation box and right side support arm installation box respectively with left side support arm and right side support arm spiro union, and left side support arm installation box and right side support arm installation box overlap respectively and establish and weld in the outer wall of left side C post and right side C post, and lie in respectively on the left side connecting piece and the right side between connecting piece and the back floor crossbeam.

One end of the left side support arm, which is far away from the left side installation box, is connected to the position between the two ends of the left reinforcing section, and one end of the right side support arm, which is far away from the right side installation box, is connected to the position between the two ends of the right reinforcing section.

Adopt above-mentioned technical scheme, the one end of left side support arm constitutes the one end of left side lower connecting piece, fix the position between the both ends of left side enhancement section, the other end of left side support arm is fixed at left side support arm installation box, and left side support arm installation box fixes the outer wall at left side C post, constitute the other end of left side lower connecting piece, the one end of right side support arm constitutes the one end of right side lower connecting piece, fix the position between the both ends at right enhancement section, the other end of right side support arm is fixed at right side support arm installation box, and right side support arm installation box fixes the outer wall at right side C post, constitute the other end of right side lower connecting piece. The left side support arm installation box and the right side support arm installation box are similar in structure to the left side installation box and the right side installation box and are provided with a rectangular bottom plate and two side walls which are connected with the bottom plate and are arranged oppositely, the box bodies of the left side support arm installation box and the right side support arm installation box are respectively matched with the outer wall surfaces of the left side C column and the right side C column and have higher connection strength, the outer wall surfaces of the left side C column and the right side C column are respectively embedded between the bottom plate and the two side walls of the box bodies of the left side support arm installation box and the right side support arm installation box, the left side installation box and the right side installation box can not respectively displace along the cross section directions of the left side C column and the right side C column, the connection stability of the left side support arm and the right side support arm and an automobile is ensured, the rigidity of a left reinforcing section and a right reinforcing section of a reinforcing part in the height direction of the automobile is improved through the left side support arm and the right side support arm, and the arrangement of the left side support arm and the right side support arm is reasonable, excessive space cannot be occupied, the torsion resistance of the automobile is greatly improved by the rear reinforcing device, the arrangement is ingenious, and the installation space of other parts is not occupied.

The embodiment of the utility model also discloses a rear reinforcing device for an automobile, wherein the surfaces of the left side support arm and the right side support arm are respectively provided with at least two reinforcing ribs, the reinforcing ribs arranged on the left side support arm extend from one end of the left side support arm to the other end, and the reinforcing ribs arranged on the right side support arm extend from one end of the right side support arm to the other end.

Adopt above-mentioned technical scheme, the surface of left side support arm and right side support arm all is provided with two at least strengthening ribs, set up in the length direction of left side support arm, extend to the other end from one end to and the length direction of right side support arm, extend to the other end from one end, be provided with the strengthening rib in the length direction of left side support arm and right side support arm, improve the rigidity of the length direction of left side support arm and right side support arm, and then improve the left reinforcement section and the right reinforcement section's of strengthening the part rigidity in the car direction of height.

The embodiment of the utility model also discloses a rear reinforcing device for the automobile, wherein one end to the other end of the left side support arm extends obliquely upwards in the direction far away from the left side C column, and one end to the other end of the right side support arm extends obliquely upwards in the direction far away from the right side C column.

Adopt above-mentioned technical scheme, the one end of left side support arm extends to the other end upwards to one side towards the direction of keeping away from left side C post, the one end of right side support arm extends to the other end upwards to one side towards the direction of keeping away from right side C post, when the automobile received the torsional moment of automobile body transverse direction, bear partly by left side support arm and by right side support arm, left side strengthening section and the right strengthening section of having guaranteed the reinforcing part are at the rigidity of two directions of automobile body transverse direction and automobile body direction of height, and the anti-torque ability of reinforcing part has been improved, and then the torsional rigidity and the yaw mode performance of whole car have been improved.

The embodiment of the utility model also discloses a rear reinforcing device for the automobile, the reinforcing part is in a bow shape, the left reinforcing section and the right reinforcing section respectively extend upwards and slantwise towards the direction far away from the middle reinforcing section, and the length direction of the middle reinforcing section is parallel to the length direction of the rear floor beam.

By adopting the technical scheme, the reinforcing part is arranged in a bow shape, the left reinforcing section and the right reinforcing section extend upwards in an inclined manner respectively towards the direction far away from the middle reinforcing section, and the length direction of the middle reinforcing section is parallel to the length direction of the rear floor beam. The middle reinforcing section of the reinforcing part is parallel to the length direction of the rear floor beam and fixed on the rear floor beam, the strength of the transverse direction of the automobile body is improved, the left reinforcing section and the right reinforcing section on two sides of the middle reinforcing section extend upwards in an inclined mode towards the direction far away from the middle reinforcing section respectively, the torsional rotation resistance of the reinforcing part is improved, the torsional rigidity and the transverse swing modal performance of the automobile are improved, and the mounting space is provided for the arrangement of the left support arm and the right support arm.

The embodiment of the utility model also discloses a rear reinforcing device for the automobile, and the cross section of the reinforcing part is in a shape like a Chinese character 'ji'.

By adopting the technical scheme, the cross section of the reinforcing part is in a shape like a Chinese character 'ji', so that the torsional modulus of the cross section of the reinforcing part is increased, and the torsional resistance of the reinforcing part is further improved.

The embodiment of the utility model also discloses an automobile which comprises any one of the rear reinforcing devices.

By adopting the scheme, the rear reinforcing device is connected with the left C column, the right C column and the rear bottom plate beam of the automobile. The rear reinforcing device comprises a reinforcing part, wherein a middle reinforcing section of the reinforcing part is fixedly connected with a rear floor beam to reinforce the rigidity of the automobile body in the transverse direction, a left reinforcing section and a right reinforcing section of the reinforcing part are respectively connected with a left C column and a right C column of the automobile, and the left reinforcing section and the right reinforcing section extend towards the direction far away from the middle reinforcing section, so that the torsional rigidity of the automobile is improved, the transverse swing mode of the automobile body is improved, the space of an automobile cab is not occupied, for a three-compartment automobile, the space in the automobile is not directly connected with the trunk, the problems of difficult rear seat placement and luggage compartment space intrusion are avoided, for a two-compartment automobile, the two ends of the reinforcing part are below a spare tire compartment decorative plate, and the problems of difficult luggage compartment placement and rear seat placement are effectively avoided, and the development cycle of the rear reinforcing device is short, and the use cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a rear reinforcing apparatus for an automobile according to an embodiment of the present invention.

Description of reference numerals:

100. a reinforcing member;

101. a left reinforcement section; 102. a middle reinforcement section; 103. a right reinforcement section;

200. a left side connection assembly;

210. a left upper connector;

211. a box is arranged on the left side;

220. a left lower connector;

221. a left side support arm; 222. a box is arranged on the left side support arm;

300. a right side connection assembly;

310. a right upper connecting piece;

311. a box is arranged on the right side;

320. a right lower connector;

321. a right side support arm; 322. a box is arranged on the right side support arm;

400. a left C column;

500. a rear floor beam;

600. right C-bar.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the utility model will be described in conjunction with the preferred embodiments, it is not intended that the features of the utility model be limited to these embodiments. On the contrary, the intention of the novel description to be incorporated into the embodiments is to cover alternatives or modifications which may be extended in accordance with the appended claims. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The utility model may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are only used for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiment of the embodiment discloses a rear reinforcing device for an automobile, as shown in fig. 1, the automobile comprises a left C-pillar 400, a right C-pillar 600, and a rear floor cross beam 500 respectively connected with the lower end of the left C-pillar 400 and the lower end of the right C-pillar 600, the rear reinforcing device comprises a reinforcing component 100, a left connecting assembly 200 and a right connecting assembly 300, the reinforcing component 100 comprises a left reinforcing section 101, a middle reinforcing section 102 and a right reinforcing section 103 which are sequentially connected along the length direction of the reinforcing component 100, one end of the left reinforcing section 101, which is far away from the middle reinforcing section 102, is the left end of the reinforcing component 100, and one end of the right reinforcing section 103, which is far away from the middle reinforcing section 102, is the right end of the reinforcing component 100; the left side coupling assembling 200 is arranged on the left reinforcing section 101, the reinforcing component 100 is fixedly connected with the left side C column 400 through the left side coupling assembling 200, the right side coupling assembling 300 is arranged on the right reinforcing section 103, the right reinforcing section 103 is fixedly connected with the right side C column 600 through the right side coupling assembling 300, and the middle reinforcing section 102 of the reinforcing component 100 is fixedly connected with the rear floor beam 500.

Specifically, in this embodiment, the reinforcing member 100 may be formed by stamping a composite material of other metals such as aluminum, steel, or magnesium alloy, so as to ensure the overall strength and torsion resistance of the reinforcing member 100. Those skilled in the art can design the device according to practical situations and specific requirements, and the embodiment is not limited in this respect.

More specifically, in this embodiment, the left reinforcing section 101, the middle reinforcing section 102, and the right reinforcing section 103 of the reinforcing component 100 are sequentially connected, and may be integrally formed, or may be divided into three components, the left reinforcing section 101, the middle reinforcing section 102, and the right reinforcing section 103 are connected by a conventional connection method in the field, such as welding, riveting, or clamping, preferably, the left reinforcing section 101, the middle reinforcing section 102, and the right reinforcing section 103 of the reinforcing component 100 are integrally formed in this embodiment, and by using this processing method, the overall strength of the reinforcing component 100 is high, and only one component needs to be processed to solve the technical problem, and the processing process is simpler.

More specifically, in this embodiment, the left connecting assembly and the right connecting assembly can be respectively provided with any one of 1-4 numbers, preferably, the left connecting assembly can be set as the left upper connecting member 210 and the left lower connecting member 220, and the right connecting assembly can be set as the right upper connecting member 310 and the right lower connecting member 320. The plurality of left and right connecting assemblies improve the connection stability of the reinforcing component 100 and the automobile body, and those skilled in the art can design the reinforcing component according to actual conditions and specific requirements, which is not specifically limited in this embodiment.

More specifically, the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing component 100 are respectively connected with the left C column 400 and the right C column 600 of the automobile through the left connecting assembly 200 and the right connecting assembly 300, the middle reinforcing section 102 of the reinforcing component 100 is fixedly connected with the rear floor beam 500 of the automobile, and the reinforcing component 100 supports the C columns on two sides, so that the strength of the automobile body is enhanced, the torsional rigidity of the automobile body is improved, and the yaw mode of the automobile body is improved. The reinforcing part 100 is installed at the C column, namely under the trunk trim, for a three-compartment vehicle, the space in the vehicle is not directly connected with the trunk, the problem that a rear row seat is difficult to lay down and occupies the space of the trunk does not exist, but for a two-compartment vehicle, the two ends of the reinforcing part 100 are arranged below the trunk trim, the problem that the space of the trunk and the space of the rear row seat are difficult to lay down is effectively avoided, the development cycle of the rear reinforcing device is short, and the use cost is reduced.

The embodiment in this embodiment also discloses a rear reinforcing device, the left connecting assembly 200 includes a left upper connecting member 210, the left upper connecting member 210 is disposed at one end of the left reinforcing section 101 away from the middle reinforcing section 102, and the left reinforcing section 101 is fixedly connected to the left C-pillar 400 through the left upper connecting member 210; the right connecting assembly 300 comprises a right upper connecting member 310, the right upper connecting member 310 is arranged at one end of the right reinforcing section 103, which is far away from the middle reinforcing section 102, and the right reinforcing section 103 is fixedly connected with the right C-pillar 600 through the right upper connecting member 310.

Specifically, the left reinforcing section 101 of the reinforcing component 100 is fixedly connected to the left C-pillar 400 through the left upper connecting piece 210, the right reinforcing section 103 of the reinforcing component 100 is fixedly connected to the right C-pillar 600 through the right upper connecting piece 310, the left upper connecting piece 210 and the right upper connecting piece 310 fix the relative positions of the reinforcing component 100 and the automobile body, the reinforcing component 100 cannot move easily, the mounting stability of the reinforcing component 100 is improved, and the improvement effect of the reinforcing component 100 on the torsional rigidity and the yaw mode of the automobile body is more remarkable.

More specifically, in this embodiment, the left upper connecting member 210 and the right upper connecting member 310 may be a left mounting box 211 and a right mounting box 311 fixedly connected to the outer wall surfaces of the left C-pillar 400 and the right C-pillar 600, one ends of the left reinforcing segment 101 and the right reinforcing segment 103 of the reinforcing member 100, which are far away from the middle reinforcing segment 102, are provided with corresponding left mounting shells and right mounting shells, or are provided with clamping portions on the outer wall surfaces of the left C-pillar 400 and the right C-pillar 600, one ends of the left reinforcing segment 101 and the right reinforcing segment 103 of the reinforcing member 100, which are far away from the middle reinforcing segment 102, are provided with corresponding clamped portions, and those skilled in the art can design according to actual situations and specific requirements, which is not specifically limited in this embodiment.

The embodiment in this embodiment also discloses a rear reinforcing device, the left upper connecting member 210 includes a left mounting box 211, the right upper connecting member 310 includes a right mounting box 311, both the left mounting box 211 and the right mounting box 311 include box bodies, and each of the box bodies has a rectangular bottom plate and two side walls which are connected with the bottom plate and are oppositely arranged; the left reinforcing section 101 and the right reinforcing section 103 are screwed to the bottom plates of the cases of the left side installation case 211 and the right side installation case 311, respectively, and the left side installation case 211 and the right side installation case 311 are sleeved and welded to the outer wall surfaces of the left side C-pillar 400 and the right side C-pillar 600, respectively.

Specifically, the left side installation box 211 and the right side installation box 311 both include a box body having a rectangular bottom plate and two side walls connected to and disposed opposite to the bottom plate, the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 are respectively screwed to the bottom plates of the box bodies of the left side installation box 211 and the right side installation box 311, the left side installation box 211 and the right side installation box 311 are respectively sleeved and welded to the outer wall surfaces of the left side C column 400 and the right side C column 600, the box bodies of the left side installation box 211 and the right side installation box 311 are respectively matched with the left side C column 400 and the right side C column 600, and have high connection strength, and the outer wall surfaces of the left side C column 400 and the right side C column 600 are respectively embedded between the bottom plate and the two side walls of the box bodies of the left side installation box 211 and the right side installation box 311, the left side installation box 211 and the right side installation box 311 do not respectively displace along the cross section direction of the left side C column 400 and the right side C column 600, the left side installation box 211 and the right side installation box 311 are connected with the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing component 100 in a threaded manner, so that the reinforcing component 100 can be conveniently installed and detached.

More specifically, cavities are formed at the joints of the bottom plates of the box bodies of the left side installation box 211 and the right side installation box 311 and the left side C column 400 and the right side C column 600 respectively, the height of the cavity is 1-3mm, preferably 1.1mm, the smaller the height of the cavity is, the higher the connection strength between the reinforcing component 100 and the left side C column 400 and the right side C column 600 respectively is, and further the torsion resistance of the rear reinforcing device is improved.

The embodiment in this embodiment also discloses a rear reinforcing device, the left connecting assembly 200 further includes a left lower connecting member 220, one end of the left lower connecting member 220 is fixedly connected to a position between two ends of the left reinforcing section 101, the other end of the left lower connecting member 220 is fixedly connected to the left C-pillar 400 and is located between the left upper connecting member 210 and the rear floor beam 500, the right connecting assembly 300 further includes a right lower connecting member 320, one end of the right lower connecting member 320 is fixedly connected to a position between two ends of the right reinforcing section 103, the other end of the right lower connecting member 320 is fixedly connected to the right C-pillar 600 and is located between the right upper connecting member 310 and the rear floor beam 500.

Specifically, in this embodiment, the left connecting assembly 200 is further provided with a left lower connecting member 220, one end of the left lower connecting member 220 is fixedly connected between two ends of the left reinforcing section 101, the other end of the left lower connecting member is connected to the left C-pillar 400, and is located between the left upper connecting member 210 and the rear floor cross member 500, the right connecting assembly 300 is further provided with a right lower connecting member 320, one end of the right lower connecting member 320 is fixedly connected between two ends of the right reinforcing section 103, the other end of the right lower connecting member is connected to the right C-pillar 600, and is located between the right upper connecting member 310 and the rear floor cross member 500, the left lower connecting member 220 and the right lower connecting member 320 further enhance the connection strength between the reinforcing member 100 and the automobile, and because one ends of the left lower connecting member 220 and the right lower connecting member 320 are respectively disposed between two ends of the left reinforcing section 101 and the right reinforcing section 103, the rigidity of the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 in the automobile height direction is enhanced, the overall stiffness of the reinforcing component 100 is improved, and the torsional stiffness and the yaw mode performance of the automobile are further enhanced.

The embodiment of the present invention also discloses a rear reinforcing apparatus, wherein the left lower link 220 includes a left arm 221 and a left arm mounting box 222, one end of the left arm 221 forms one end of the left lower link 220, and the left arm mounting box 222 is fixed to the other end of the left arm 221 and forms the other end of the left lower link 220; right lower link 320 includes a right arm 321 and a right arm mounting box 322, one end of right arm 321 constituting one end of right lower link 320, and right arm mounting box 322 fixed to the other end of right arm 321 and constituting the other end of right lower link 320.

Left side support arm installation box 222, right side support arm installation box 322 all includes the box body, the box body has the bottom plate that is rectangle, and meet and two lateral walls that set up relatively with the bottom plate, the bottom plate of left side support arm installation box 222 and right side support arm installation box 322 respectively with left side support arm 221 and right side support arm 321 spiro union, and left side support arm installation box 222 and right side support arm installation box 322 overlap respectively and establish and weld in the outer wall surface of left side C post 400 and right side C post 600, and be located respectively on the left side between connecting piece 210 and the right side on connecting piece 310 and the back floor crossbeam 500.

Specifically, one end of the left arm 221 constitutes one end of the left lower link 220, and is fixed at a position between both ends of the left reinforcement section 101, the other end of the left arm 221 is fixed to the left arm installation box 222, and the left arm installation box 222 is fixed to the outer wall surface of the left C-pillar 400, and constitutes the other end of the left lower link 220, one end of the right arm 321 constitutes one end of the right lower link 320, and is fixed at a position between both ends of the right reinforcement section 103, the other end of the right arm 321 is fixed to the right arm installation box 322, and the right arm installation box 322 is fixed to the outer wall surface of the right C-pillar 600, and constitutes the other end of the right lower link 320. The left arm mounting box 222 and the right arm mounting box 322 are similar in structure to the left mounting box 211 and the right mounting box 311, and have a rectangular bottom plate and two side walls connected to and facing the bottom plate, the box bodies of the left arm mounting box 222 and the right arm mounting box 322 are respectively matched with the outer wall surfaces of the left C-pillar 400 and the right C-pillar 600, and have high connection strength, and the outer wall surfaces of the left C-pillar 400 and the right C-pillar 600 are respectively embedded between the bottom plate and the two side walls of the box bodies of the left arm mounting box 222 and the right arm mounting box 322, the left mounting box 211 and the right mounting box 311 are not displaced along the cross-sectional directions of the left C-pillar 400 and the right C-pillar 600, so that the connection stability of the left arm 221 and the right arm 321 with the vehicle is ensured, and further the left arm 221 and the right arm 321 improve the rigidity of the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 in the vehicle height direction, and the arrangement of the left side support arm 221 and the right side support arm 321 is reasonable, and the rear part reinforcing device does not occupy too much space, greatly improves the torsion resistance of the automobile, is ingenious in arrangement, and does not occupy the installation space of other parts.

More specifically, the left arm 221 and the right arm 321 may be fixedly connected to the left reinforcing segment 101 and the right reinforcing segment 103 of the reinforcing component 100 by welding, or may be fixedly connected by riveting, clamping, or other fixing means commonly used in the art, and the left arm 221 and the right arm 321 may be integrally formed with the left reinforcing segment 101 and the right reinforcing segment 103 of the reinforcing component 100. Preferably, the welding mode is selected in the embodiment, and the connection mode is simple and reliable. Those skilled in the art can design the device according to practical situations and specific requirements, and the embodiment is not limited in this respect.

More specifically, the left arm 221 and the right arm 321 are connected to the left C-pillar 400 and the right C-pillar 600 via the left arm mounting box 222 and the right arm mounting box 322, respectively, and the left arm 221 and the right arm 321 may be fixedly connected to each other via a locking portion provided on the left C-pillar 400 and the right C-pillar 600, respectively. The left side arm 221 and the right side arm 321 can also be directly fixed on the outer wall of the left side C-pillar 400 and the right side C-pillar 600 by welding, respectively. Those skilled in the art can design the device according to practical situations and specific requirements, and the embodiment is not limited in this respect.

In the embodiment of the present invention, at least two reinforcing ribs are disposed on the surfaces of the left arm 221 and the right arm 321, the reinforcing ribs disposed on the left arm 221 extend from one end of the left arm 221 to the other end, and the reinforcing ribs disposed on the right arm 321 extend from one end of the right arm 321 to the other end.

Specifically, in this embodiment, two reinforcing ribs (not shown) are disposed on the surfaces of the left arm 221 and the right arm 321, and are disposed in the length direction of the left arm 221 and extend from one end to the other end, and the length direction of the right arm 321 and extend from one end to the other end, and the reinforcing ribs are disposed in the length direction of the left arm 221 and the right arm 321, so as to improve the rigidity of the left arm 221 and the right arm 321 in the length direction, and further improve the rigidity of the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing component 100 in the height direction of the vehicle.

More specifically, the left side support arm 221 and the right side support arm 321 are plate-shaped, the edge portions of the side surfaces of the left side support arm 221 and the right side support arm 321 are provided with reinforcing ribs, the strength of the left side support arm 221 and the strength of the right side support arm 321 in the length direction are improved, the left side support arm 221 and the right side support arm 321 can also be provided with a third reinforcing rib in the length direction on the surface of the side surface, any reinforcing rib in the width direction in the number of 1-6 can also be provided, preferably, 4 reinforcing ribs in the width direction are provided, a person skilled in the art can design according to actual conditions and specific requirements, and no specific limitation is made to this embodiment.

In the embodiment of the present invention, a rear reinforcing device is further disclosed, in which one end to the other end of the left arm 221 extends obliquely upward in a direction away from the left C-pillar 400, and one end to the other end of the right arm 321 extends obliquely upward in a direction away from the right C-pillar 600.

Specifically, in this embodiment, the end to the other end of the left side arm 221 extends obliquely upward in the direction away from the left C-pillar 400, and the end to the other end of the right side arm 321 extends obliquely upward in the direction away from the right C-pillar 600, when the vehicle receives a torsional moment in the transverse direction of the vehicle body, the left side arm 221 and the right side arm 321 bear a part of the torsional moment, so that the rigidities of the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 in the two directions, i.e., the transverse direction of the vehicle body and the height direction of the vehicle body, are ensured, the anti-torsional capability of the reinforcing member 100 is improved, and further, the torsional rigidity and the yaw modal performance of the entire vehicle are improved.

More specifically, the left arm mounting box 222 is connected to the lower end of the left C-pillar 400, the right arm mounting box 322 is connected to the lower end of the right C-pillar 600, the left arm 221 is connected to a position between two ends of the left reinforcement section 101 and a quarter of the length of the left C-pillar 400, the right arm 321 is connected to a position between two ends of the right reinforcement section 103 and a quarter of the length of the right C-pillar 600, the left arm 221 and the right arm 321 can also be connected to a position between the left reinforcement section 101 and the right reinforcement section 103 and a fifth or a half of the length of the left C-pillar 400 and the right C-pillar 600, and those skilled in the art can design according to actual conditions and specific requirements, and this embodiment is not limited specifically.

More specifically, the left side arm 221 and the right side arm 321 are inclined by 30 ° to 45 ° in the direction away from the left C-pillar 400 and the right C-pillar 600 in the vertical direction, preferably, in this embodiment, the left side arm 221 and the right side arm 321 are inclined by 30 ° in the direction away from the left C-pillar 400 and the right C-pillar 600 in the vertical direction, and this setting manner ensures the rigidities of the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 in the two directions, namely the transverse direction and the height direction of the vehicle body, and those skilled in the art can design according to actual situations and specific requirements, which is not specifically limited in this embodiment.

The embodiment in the embodiment also discloses a rear reinforcing device, wherein the reinforcing part 100 is in a shape of a Chinese character 'gong', the left reinforcing section 101 and the right reinforcing section 103 respectively extend upwards and slantwise towards the direction far away from the middle reinforcing section 102, and the length direction of the middle reinforcing section 102 is parallel to the length direction of the rear floor beam 500.

Specifically, in the present embodiment, the reinforcing member 100 is provided in a shape of a Chinese character 'gong', the left reinforcing segment 101 and the right reinforcing segment 103 extend obliquely upward in a direction away from the middle reinforcing segment 102, and the length direction of the middle reinforcing segment 102 is parallel to the length direction of the rear floor cross member 500. The middle reinforcing section 102 of the reinforcing part 100 is parallel to the length direction of the rear floor beam 500 and is fixed on the rear floor beam 500, the strength of the automobile body in the transverse direction is improved, the left reinforcing section 101 and the right reinforcing section 103 on two sides of the middle reinforcing section 102 extend obliquely upwards towards the direction far away from the middle reinforcing section 102 respectively, the anti-torsion capability of the reinforcing part 100 is improved, the torsion rigidity and the yaw modal performance of the automobile are improved, and a mounting space is provided for the arrangement of the left support arm and the right support arm.

More specifically, the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 are respectively inclined by 30 ° to 45 ° with respect to the horizontal direction, and this arrangement improves the torsion resistance of the reinforcing member 100, and preferably, in this embodiment, the left reinforcing section 101 and the right reinforcing section 103 of the reinforcing member 100 are respectively inclined by 30 ° with respect to the horizontal direction, which not only improves the torsion resistance of the reinforcing member 100 to the automobile body, but also provides an arrangement space for the left lower connecting member 220 and the right lower connecting member 320, and those skilled in the art can design according to actual conditions and specific requirements, and this embodiment is not specifically limited.

The embodiment in the embodiment also discloses a rear reinforcing device, and the cross section of the reinforcing component 100 is in a shape like a Chinese character 'ji'.

Specifically, the cross section of the reinforcing component 100 is in a shape like a Chinese character 'ji', which increases the torsional modulus of the cross section of the reinforcing component 100, so as to improve the torsional rotation resistance of the reinforcing component 100, the cross section of the reinforcing component 100 may also be in a shape like a 'C', the cross section of the reinforcing component 100 may be other sections for improving the torsional modulus of the reinforcing component 100, and those skilled in the art can design the cross section according to actual conditions and specific requirements, which is not specifically limited in this embodiment.

The embodiment in this embodiment also discloses an automobile including any one of the above rear reinforcing devices.

Specifically, the rear reinforcing apparatus is connected to the left C-pillar 400, the right C-pillar 600, and the rear floor cross member 500 of the automobile. The rear reinforcing device comprises a reinforcing part 100, wherein a middle reinforcing section 102 of the reinforcing part 100 is fixedly connected with a rear floor beam 500 to reinforce the rigidity of the automobile in the transverse direction of the automobile body, a left reinforcing section 101 and a right reinforcing section 103 of the reinforcing part 100 are respectively connected with a left C column 400 and a right C column 600 of the automobile, the left reinforcing section 101 and the right reinforcing section 103 respectively extend towards the direction far away from the middle reinforcing section 102 to improve the torsional rigidity of the automobile, the device is skillfully arranged, the torsional rigidity of the automobile body of the automobile is improved, the transverse swing mode of the automobile body is improved, the space of an automobile cab is not invaded, for a three-compartment automobile, the space in the automobile is not directly connected with the trunk, the problems of difficult rear seat placement and the space of a luggage compartment are not existed, but for a two-compartment automobile, the two ends of the reinforcing part 100 are arranged below a spare tire compartment trim, the problems of difficult trunk placement and difficult placement of the rear seat placement are effectively avoided, and the development cycle of the rear reinforcing device is short, and the use cost is reduced.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more particular description of the utility model than is possible with reference to the specific embodiments, and the specific embodiments of the utility model are not to be considered as limited to those descriptions. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the utility model.

Claims (10)

1. A rear reinforcing apparatus for an automobile, the automobile including a left C-pillar, a right C-pillar, and a rear floor cross member connected to a lower end of the left C-pillar and a lower end of the right C-pillar, respectively; the method is characterized in that:

the rear reinforcing device comprises a reinforcing component, a left connecting assembly and a right connecting assembly, wherein the reinforcing component comprises a left reinforcing section, a middle reinforcing section and a right reinforcing section which are sequentially connected along the length direction of the reinforcing component;

the left side connecting assembly is arranged on the left reinforcing section, the left reinforcing section is fixedly connected with the left side C column through the left side connecting assembly, the right side connecting assembly is arranged on the right reinforcing section, the right reinforcing section is fixedly connected with the right side C column through the right side connecting assembly, and the middle reinforcing section is fixedly connected with the rear floor beam.

2. The rear reinforcing apparatus for vehicles as claimed in claim 1, wherein:

the left side connecting assembly comprises a left side upper connecting piece, the left side upper connecting piece is arranged at one end, far away from the middle reinforcing section, of the left reinforcing section, and the left reinforcing section is fixedly connected with the left side C column through the left side upper connecting piece;

the right side connecting assembly comprises a right side upper connecting piece, the right side upper connecting piece is arranged at one end, far away from the middle reinforcing section, of the right reinforcing section, and the right reinforcing section is fixedly connected with the right side C column through the right side upper connecting piece.

3. The rear reinforcing apparatus for vehicles as claimed in claim 2, wherein the left upper connecting member includes a left mounting box, and the right upper connecting member includes a right mounting box;

the left side installation box and the right side installation box both comprise box bodies, and each box body is provided with a rectangular bottom plate and two side walls which are connected with the bottom plate and are oppositely arranged;

the left reinforcing section and the right reinforcing section are respectively in threaded connection with bottom plates of box bodies of the left side installation box and the right side installation box, and the left side installation box and the right side installation box are respectively sleeved and welded on the outer wall surfaces of the left side C column and the right side C column.

4. The rear reinforcing apparatus for vehicles as claimed in claim 3, wherein the left side connecting member further includes a left side lower connecting member, one end of which is fixedly connected to the left reinforcing section at a position between the ends thereof, and the other end of which is fixedly connected to the left C-pillar and between the left side upper connecting member and the rear floor cross member;

the right side connecting assembly further comprises a right side lower connecting piece, one end of the right side lower connecting piece is fixedly connected to a position between two ends of the right reinforcing section, and the other end of the right side lower connecting piece is fixedly connected to the right side C column and located between the right side upper connecting piece and the rear floor beam.

5. The rear reinforcing apparatus for vehicles as claimed in claim 4, wherein the left lower link member includes a left arm and a left arm mounting box, one end of the left arm constituting one end of the left lower link member, the left arm mounting box being fixed to the other end of the left arm and constituting the other end of the left lower link member; the right lower connecting piece comprises a right support arm and a right support arm mounting box, one end of the right support arm forms one end of the right lower connecting piece, and the right support arm mounting box is fixed at the other end of the right support arm and forms the other end of the right lower connecting piece;

the left side support arm mounting box and the right side support arm mounting box both comprise box bodies, and each box body is provided with a rectangular bottom plate and two side walls which are connected with the bottom plate and are oppositely arranged;

the bottom plates of the left side support arm installation box and the right side support arm installation box are in threaded connection with the left side support arm and the right side support arm respectively, and the left side support arm installation box and the right side support arm installation box are sleeved and welded on the outer wall surfaces of the left side C column and the right side C column respectively and are located between the left side upper connecting piece and the right side upper connecting piece and the rear floor beam respectively;

one end of the left side support arm, which is far away from the left side installation box, is connected to the position between the two ends of the left reinforcing section, and one end of the right side support arm, which is far away from the right side installation box, is connected to the position between the two ends of the right reinforcing section.

6. The rear reinforcing apparatus for a vehicle as claimed in claim 5, wherein the surfaces of the left side arm and the right side arm are each provided with at least two reinforcing ribs, the reinforcing ribs provided on the left side arm extend from one end of the left side arm to the other end, and the reinforcing ribs provided on the right side arm extend from one end of the right side arm to the other end.

7. The rear reinforcing apparatus for a vehicle as claimed in claim 6, wherein one end to the other end of the left side arm extends obliquely upward away from the left C-pillar, and one end to the other end of the right side arm extends obliquely upward away from the right C-pillar.

8. The rear reinforcing apparatus for vehicle of any one of claims 1 to 7, wherein the reinforcing member has a shape of a Chinese character 'gong', and the left reinforcing section and the right reinforcing section each extend obliquely upward in a direction away from the middle reinforcing section, and a longitudinal direction of the middle reinforcing section is parallel to a longitudinal direction of the rear floor cross member.

9. The rear reinforcing apparatus for vehicles as claimed in claim 8, wherein the reinforcing member has a cross-section in the shape of a "zigzagging".

10. An automobile, characterized by comprising the rear reinforcing apparatus for an automobile according to any one of claims 1 to 9.

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