CN211731598U - Longitudinal beam rear section connecting structure - Google Patents

Longitudinal beam rear section connecting structure Download PDF

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Publication number
CN211731598U
CN211731598U CN201922367649.8U CN201922367649U CN211731598U CN 211731598 U CN211731598 U CN 211731598U CN 201922367649 U CN201922367649 U CN 201922367649U CN 211731598 U CN211731598 U CN 211731598U
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section
longitudinal beam
beam rear
rear section
back end
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CN201922367649.8U
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周学青
王国军
熊建华
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Chongqing Branch of DFSK Motor Co Ltd
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Chongqing Branch of DFSK Motor Co Ltd
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Abstract

The utility model discloses a longeron back end connection structure relates to automobile body part technical field. The rear floor assembly comprises a longitudinal beam rear section, a longitudinal beam rear section lengthening section, a seat turnover mechanism mounting plate and a longitudinal beam rear section lengthening section cover plate, wherein the longitudinal beam rear section and the longitudinal beam rear section lengthening section are sequentially connected to the rear portion of a longitudinal beam and are connected with the two sides of a rear floor assembly of a vehicle, the longitudinal beam rear section is fixedly connected with the rear floor assembly through the seat turnover mechanism mounting plate, and the longitudinal beam rear section lengthening section is fixedly connected with the rear floor assembly through the longitudinal beam rear section lengthening section cover plate. The utility model provides a pair of longeron back end connection structure can solve the problem that longeron back end structure is complicated and leaves the angle reduction.

Description

Longitudinal beam rear section connecting structure
Technical Field
The utility model relates to an automobile body part technical field especially relates to a longeron back end connection structure.
Background
The SUV automobile rear compartment is a space between a rear row seat and a back door, and mainly has the function of absorbing energy to protect rear row passengers during rear collision; and is capable of holding items. With the vigorous development of the automobile industry and the improvement of the living standard of people, the space requirement of people on the rear carriage is higher and higher.
At present, in a front wheel driven automobile, in order to increase the space of a rear carriage, a spare tire is arranged at the lower part of a front row seat, and the rear part of a rear floor can be designed into a concave structure. As shown in fig. 1 and 2, the rear part of the longitudinal beam of the existing structure is generally arranged on the lower side of the rear floor assembly, the longitudinal beam is in a U-shaped groove structure, and the rear floor assembly is welded above the U-shaped groove longitudinal beam to form a box-shaped structure. In order to match the rear floor with a concave structure, the rear part of the longitudinal beam is also designed to be a sinking structure, so that the structure is complex and is not easy to manufacture; the sinking distance is large, the departure angle of the automobile is reduced, and the trafficability of the automobile is seriously influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model discloses a main aim at provides a longeron back end connection structure, can solve the problem that longeron back end structure is complicated and leaves the angle reduction.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the utility model provides a longeron back end connection structure, includes longeron back end, longeron back end extension section, seat tilting mechanism mounting panel and longeron back end extension section apron, longeron back end and longeron back end extension section connect gradually at the rear portion of longeron to be connected with the back floor assembly both sides of vehicle, the longeron back end pass through seat tilting mechanism mounting panel with back floor assembly fixed connection, the longeron back end extension section pass through longeron back end extension section apron with back floor assembly fixed connection.
Optionally, the longitudinal beam rear section and the seat turnover mechanism mounting plate are fixedly connected to form a box-shaped structure.
Optionally, the longitudinal beam rear section lengthened section and the longitudinal beam rear section lengthened section cover plate are fixedly connected to form a box-shaped structure.
Optionally, the longitudinal beam rear section and the longitudinal beam rear section lengthened section are both L-shaped structures.
Optionally, the seat turnover mechanism mounting plate and the longitudinal beam rear section lengthened cover plate are both of inverted-L-shaped structures.
Optionally, the rear floor assembly comprises a rear floor body rear section, a frame rear cross beam, a longitudinal beam rear section left connecting piece and a longitudinal beam rear section right connecting piece, two ends of the frame rear cross beam are fixedly connected with the longitudinal beam rear section through the longitudinal beam rear section left connecting piece and the longitudinal beam rear section right connecting piece, and two sides of the rear floor body rear section are fixedly connected with the longitudinal beam rear section and the longitudinal beam rear section lengthened section.
Optionally, the fixed connection is a welded, riveted, fastened connection.
The utility model provides a pair of longeron back end connection structure, including longeron back end, longeron back end extension section, seat tilting mechanism mounting panel and longeron back end extension section apron. The longitudinal beam rear section and the longitudinal beam rear section lengthened section are sequentially connected to the rear part of the longitudinal beam, namely, a complete longitudinal beam commonly used at present is designed into a split structure of the longitudinal beam body, the longitudinal beam rear section and the longitudinal beam rear section lengthened section, so that the problem of complex structure of the longitudinal beam rear section is solved; the longitudinal beam rear section and the longitudinal beam rear section lengthened section are fixedly connected to two sides of the rear floor assembly of the vehicle, so that only the rear floor is designed into a concave structure, the longitudinal beam does not need to sink along with the concave structure, and the problem that the departure angle is reduced because the longitudinal beam is arranged below the rear floor assembly is solved.
The utility model provides a pair of longeron back end connection structure, the longeron back end pass through the seat tilting mechanism mounting panel with back floor assembly fixed connection, longeron back end extension section pass through longeron back end extension section apron with back floor assembly fixed connection for longeron back end and longeron back end extension section need not to press into "U" word flute profile structure, have also further reduced the longeron structure complicacy, and the problem that preparation technology required is higher can also avoid the problem of kick-backing when former "U" word flute profile longeron shaping, have improved the stability of quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the rear portion of a prior art "U" shaped channel stringer and rear floor assembly;
FIG. 2 is a schematic cross-sectional view at A-A of the rear portion of the stringer shown in FIG. 1 connected to a rear floor assembly;
fig. 3 is a rear structural schematic view of a longitudinal beam rear section connecting structure according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a stringer, a rear stringer section, and a rear stringer section extension in accordance with the rear stringer section connection shown in FIG. 3;
fig. 5 is a schematic structural diagram of a rear connection structure of a longitudinal beam according to an embodiment of the present invention;
FIG. 6 is a partial schematic structural view of the trailing beam rear section attachment structure shown in FIG. 5;
fig. 7 is a schematic cross-sectional view at B-B of the trailing beam rear section joint structure shown in fig. 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be understood that the terms "X axis", "Y axis", "Z axis", "vertical", "parallel", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 3-7, the utility model provides a pair of longeron back end connection structure can include longeron back end 1, longeron back end extension section 2, seat tilting mechanism mounting panel 3 and longeron back end extension section apron 4 generally. The vehicle has two left and right side members 5. The left longitudinal beam and the right longitudinal beam 5 are symmetrically designed. The rear part of the longitudinal beam 5 is fixedly connected with a longitudinal beam rear section 1 and a longitudinal beam rear section lengthening section 2 in sequence. Namely, a conventional complete longitudinal beam is designed into a split structure of the longitudinal beam 5, the longitudinal beam rear section 1 and the longitudinal beam rear section lengthened section 2, so that the problem of complex structure of the longitudinal beam rear section is solved. The rear floor assembly 6 comprises a frame rear cross beam 62, a longitudinal beam rear section left connecting piece 63, a longitudinal beam rear section right connecting piece 64 and a rear floor body rear section 61 with a sinking design. One end of the frame rear cross beam 62 is fixedly connected with the left side longitudinal beam rear section 1 and the left side longitudinal beam 5 through the longitudinal beam rear section left connecting piece 63. The other end of the frame rear cross member 62 is fixedly connected with the right side member rear section 1 and the right side member 5 through a side member rear section right connecting member 64. The left side and the right side of the rear floor body rear section 61 of the sunk type design are fixedly connected with the longitudinal beam rear section 1 and the longitudinal beam rear section lengthened section 2, and the heights of the longitudinal beam rear section 1 and the longitudinal beam rear section lengthened section 2 are higher than the plane where the sunk type platform of the rear floor body rear section 61 is located. In a particular embodiment, the trailing beam rear section 1 and the trailing beam rear section extension 2 are both located substantially on the same horizontal plane as the trailing beam 5. Through with longeron back end 1 and longeron back end extension section 2 fixed connection in the rear floor assembly 6 both sides of vehicle to only need the rear floor design for the spill structure that sinks can, need not the longeron and sink thereupon, solved the longeron and set up the problem that the departure angle that causes in rear floor assembly 6 below reduces.
In one embodiment, the rear side rail section 1 is fixedly connected to the rear floor assembly 6 via the seat tilt mounting plate 3. The longitudinal beam rear section 1 and the seat turnover mechanism mounting plate 3 are fixedly connected to form a box-shaped structure. The longitudinal beam rear section lengthened section 2 is fixedly connected with a rear floor assembly 6 through a longitudinal beam rear section lengthened section cover plate 4. The longitudinal beam rear section lengthened section 2 and the longitudinal beam rear section lengthened section cover plate 4 are fixedly connected to form a box-shaped structure. Optionally, the longitudinal beam rear section 1 and the longitudinal beam rear section extension section 2 are both L-shaped structures, and the seat turnover mechanism mounting plate 3 and the longitudinal beam rear section extension section cover plate 4 are both inverted L-shaped structures. As shown in fig. 6 and 7, when the longitudinal beam rear-section extension section 2 is fixedly connected with the rear floor assembly 6 through the longitudinal beam rear-section extension section cover plate 4, the seat-turnover mechanism mounting plate 3 of the inverted L-shaped structure is welded with the longitudinal beam rear section 1, thereby forming a box-shaped structure with a cross section as shown in fig. 7. The longitudinal beam rear section lengthened section cover plate 4 and the longitudinal beam rear section lengthened section 2 are welded similarly, and a box-shaped structure is formed. Due to the design of the L-shaped structure and the inverted L-shaped structure, the rear section 1 and the lengthened section 2 of the rear section of the longitudinal beam do not need to be pressed into a U-shaped groove-shaped structure, the problem of springback of the original U-shaped groove-shaped longitudinal beam during forming can be avoided, and the quality stability is improved; and the problems of complex structure and high requirement on the preparation process of the longitudinal beam are further reduced.
The utility model provides a pair of longeron back end connection structure, wherein be fixed connection between each part. The means of fixed attachment may be welding, riveting, fastener attachment, and the like. Preferably, the fixed connection is performed by welding or spot welding. The L-shaped structure and the inverted L-shaped structure are designed, so that the welding is more convenient. The box type structure at longeron rear portion among the prior art is replaced to the box type structure after the welding, has the advantage that structural strength is high. In an alternative embodiment, the thickness of the rear stringer section 1 is 1.8mm and the thickness of the rear stringer section extension 2 is 1.4 mm. The thickness of seat tilting mechanism mounting panel 3 is 1.8mm, and the thickness of longeron rear segment extension section apron 4 is 1.4 mm. After the box-shaped structure is welded, the requirements of structural strength and torsional strength of a vehicle can be met.
The utility model provides a pair of longeron back end connection structure, including longeron back end, longeron back end extension section, seat tilting mechanism mounting panel and longeron back end extension section apron. The longitudinal beam rear section and the longitudinal beam rear section lengthened section are sequentially connected to the rear part of the longitudinal beam, namely, a complete longitudinal beam commonly used at present is designed into a split structure of the longitudinal beam body, the longitudinal beam rear section and the longitudinal beam rear section lengthened section, so that the problem of complex structure of the longitudinal beam rear section is solved; the longitudinal beam rear section and the longitudinal beam rear section lengthened section are fixedly connected to two sides of the rear floor assembly of the vehicle, so that only the rear floor is designed into a concave structure, the longitudinal beam does not need to sink along with the concave structure, and the problem that the departure angle is reduced because the longitudinal beam is arranged below the rear floor assembly is solved.
The utility model provides a pair of longeron back end connection structure, the longeron back end passes through seat tilting mechanism mounting panel and back floor assembly fixed connection, longeron back end extension section passes through longeron back end extension section apron and back floor assembly fixed connection, make longeron back end and longeron back end extension section need not to press into "U" word flute profile structure, it is complicated also to have further reduced the longeron structure, the higher problem of preparation process requirement, the problem of kick-backing when can also avoiding former "U" word flute profile longeron shaping, the quality stability is improved.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The utility model provides a longeron back end connection structure, its characterized in that, includes longeron back end, longeron back end extension section, seat tilting mechanism mounting panel and longeron back end extension section apron, longeron back end and longeron back end extension section connect gradually at the rear portion of longeron to be connected with the back floor assembly both sides of vehicle, the longeron back end pass through seat tilting mechanism mounting panel with back floor assembly fixed connection, the longeron back end extension section pass through longeron back end extension section apron with back floor assembly fixed connection.
2. The longitudinal beam rear section connecting structure according to claim 1, wherein the longitudinal beam rear section and the seat turnover mechanism mounting plate are fixedly connected to form a box-shaped structure.
3. The longitudinal beam rear section connecting structure according to claim 1, wherein the longitudinal beam rear section extension section and the longitudinal beam rear section extension section cover plate are fixedly connected to form a box-shaped structure.
4. The trailing beam rear-section connecting structure according to claim 1 or 2, wherein the trailing beam rear section and the trailing beam rear-section elongated section are each an L-shaped structure.
5. The longitudinal beam rear section connecting structure according to claim 1 or 3, wherein the seat turnover mechanism mounting plate and the longitudinal beam rear section extension section cover plate are both of inverted L-shaped structures.
6. The longitudinal beam rear section connecting structure according to claim 1, wherein the rear floor assembly comprises a rear floor body rear section, a frame rear cross beam, a longitudinal beam rear section left connecting piece and a longitudinal beam rear section right connecting piece, two ends of the frame rear cross beam are fixedly connected with the longitudinal beam rear section through the longitudinal beam rear section left connecting piece and the longitudinal beam rear section right connecting piece, and two sides of the rear floor body rear section are fixedly connected with the longitudinal beam rear section and the longitudinal beam rear section lengthened section.
7. A trailing beam rear-section connection according to claim 1 or 6, wherein the fixed connection is a welded, riveted or fastened connection.
CN201922367649.8U 2019-12-25 2019-12-25 Longitudinal beam rear section connecting structure Active CN211731598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922367649.8U CN211731598U (en) 2019-12-25 2019-12-25 Longitudinal beam rear section connecting structure

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Application Number Priority Date Filing Date Title
CN201922367649.8U CN211731598U (en) 2019-12-25 2019-12-25 Longitudinal beam rear section connecting structure

Publications (1)

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CN211731598U true CN211731598U (en) 2020-10-23

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114572317A (en) * 2020-11-30 2022-06-03 现代自动车株式会社 Rear vehicle body combined structure
CN114802481A (en) * 2022-04-22 2022-07-29 东风柳州汽车有限公司 Vehicle body structure and vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114572317A (en) * 2020-11-30 2022-06-03 现代自动车株式会社 Rear vehicle body combined structure
CN114802481A (en) * 2022-04-22 2022-07-29 东风柳州汽车有限公司 Vehicle body structure and vehicle

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