CN217554030U - Rear floor reinforcing cross beam structure and vehicle - Google Patents
Rear floor reinforcing cross beam structure and vehicle Download PDFInfo
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- CN217554030U CN217554030U CN202221343134.XU CN202221343134U CN217554030U CN 217554030 U CN217554030 U CN 217554030U CN 202221343134 U CN202221343134 U CN 202221343134U CN 217554030 U CN217554030 U CN 217554030U
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- cross beam
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- rear floor
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Abstract
The utility model discloses a rear floor reinforcing beam structure and a vehicle, which comprises an upper beam and a lower beam, wherein the length of the upper beam and the lower beam extends along the left-right direction, the upper beam and the lower beam are respectively and fixedly connected with the top surface and the bottom surface of a rear floor, and the left end and the right end of the upper beam are connected with a side wall wheel hub bag through a first connecting piece; the lower cross beam comprises a lower cross beam middle section and a bending part which is bent and extended backwards from the left end and the right end of the lower cross beam middle section, the lower cross beam middle section corresponds to the upper cross beam middle section in position, and the free end of the bending part is connected with the vehicle body longitudinal beam through a second connecting piece; the end part of the bending part far away from the middle section of the lower cross beam is provided with a suspension mounting point. The structure is simple, the cost is low, and the installation requirements of the rear row seats and the rear suspension are met.
Description
Technical Field
The utility model relates to an automobile body frame structure, concretely relates to back floor web beam structure and vehicle.
Background
The existing main flow structure of a rear floor beam frame is composed of an upper beam, a lower beam and a rear floor, wherein the upper beam and the lower beam are designed into a shape like a Chinese character 'ji'. Meanwhile, the upper cross beam provides a mounting point for the rear row of seats, and the lower cross beam provides a mounting point for the rear suspension. When the distance between the seat mounting point and the rear suspension mounting point in the X direction is not greatly different, the upper and lower cross beams are designed into a shape like a Chinese character 'ji', and a closed cavity is formed, for example: the rear floor beam structure disclosed in CN106428236A has the disadvantages of more weight increase and high cost. When the seat mounting point is too far from the rear suspension mounting point in the X direction, the upper and lower cross members are completely separated, for example: CN107901990A discloses a rear floor frame roof beam of promotion rear impact performance, its performance descends obviously, needs additional strengthening scheme, and weight increases the time, but the technology limit is complicated, and is with high costs.
Disclosure of Invention
The utility model aims at providing a back floor web beam structure and vehicle, its simple structure, it is with low costs, satisfy the installation demand of back row seat and back overhang.
The rear floor reinforcing beam structure comprises an upper beam and a lower beam, the lengths of the upper beam and the lower beam extend along the left-right direction, the upper beam and the lower beam are respectively fixedly connected with the top surface and the bottom surface of the rear floor, and the left end and the right end of the upper beam are connected with a side wall hub bag through first connecting pieces; the lower cross beam comprises a lower cross beam middle section and a bending part which is bent and extended backwards from the left end and the right end of the lower cross beam middle section, the lower cross beam middle section corresponds to the upper cross beam middle section, and the free end of the bending part is connected with the vehicle body longitudinal beam through a second connecting piece; the end part of the bending part far away from the middle section of the lower cross beam is provided with a suspension mounting point.
Furthermore, the first connecting piece comprises a connecting piece middle section which inclines upwards from inside to outside, a connecting piece lower section which extends inwards from the lower end of the connecting piece middle section and a connecting piece upper section which extends upwards from the upper end of the connecting piece middle section, the connecting piece middle section is positioned above the opening of the vehicle body longitudinal beam, the connecting piece lower section is in lap joint with the end part of the upper cross beam, and the connecting piece upper section is in lap joint with the side wall hub packet.
Furthermore, one end of the second connecting piece is in lap joint with the end part of the lower cross beam, and the other end of the second connecting piece is in lap joint with the outer wall of the longitudinal beam of the automobile body.
Furthermore, the end part of the second connecting piece, which is lapped with the outer wall of the vehicle body longitudinal beam, comprises a first mounting part lapped with the bottom surface of the upper flanging of the vehicle body longitudinal beam, a second mounting part lapped with the side plate of the vehicle body longitudinal beam and a third mounting part lapped with the bottom plate of the vehicle body longitudinal beam.
Furthermore, the cross section of the upper cross beam is in a shape of a Chinese character ji, and the cross section of the lower cross beam is in a shape of an inverted Chinese character ji.
A vehicle comprises a rear floor assembly, wherein the rear floor assembly comprises the rear floor reinforcing cross beam structure.
The bottom end rail includes the bottom end rail middle section and from the left and right-hand member in bottom end rail middle section backward the portion of bending of extension of buckling, the bottom end rail middle section is corresponding with entablature middle section position, the free end of the portion of bending passes through the second connecting piece and is connected with the automobile body longeron, has both guaranteed that the distance of the suspension mounting point X direction on seat installation point on the entablature and the bottom end rail satisfies the designing requirement, has improved back floor web beam rigidity simultaneously, simple structure, and is with low costs.
Drawings
FIG. 1 is a schematic structural view of a rear floor reinforcing beam according to the present invention;
fig. 2 is a schematic diagram of the position matching of the upper cross beam and the lower cross beam of the present invention;
fig. 3 is a schematic connection diagram of the lower beam of the present invention;
FIG. 4 is a schematic view of the connection between the upper and lower beams and the rear floor according to the present invention;
fig. 5 is a schematic cross-sectional view of the first connector according to the present invention;
fig. 6 is a schematic cross-sectional view of the second connector according to the present invention.
In the figure, 1-upper beam, 11-seat mounting point, 2-lower beam, 21-lower beam middle section, 22-bending part, 23-suspension mounting point, 24-process via hole, 3-rear floor, 4-first connecting piece, 41-connecting piece upper section, 42-connecting piece middle section, 43-connecting piece lower section, 5-second connecting piece, 6-side wall hub bag, and 7-vehicle body longitudinal beam.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 6, the rear floor reinforcing cross beam structure includes an upper cross beam 1 and a lower cross beam 2, the lengths of which extend in the left-right direction, the upper cross beam 1 is fixedly connected to the top surface of the rear floor 3, and the lower cross beam 2 is fixedly connected to the bottom surface of the rear floor 3. Referring to fig. 4, the cross section of the upper cross beam 1 is in a shape of a Chinese character ji, the cross section of the lower cross beam 2 is in a shape of an inverted Chinese character ji, and the upper cross beam 1 and the lower cross beam 2 can form a cavity structure after being connected with the rear floor 3, so that the overall strength of the rear floor reinforcing cross beam structure is improved.
The left end and the right end of the upper cross beam 1 are connected with a side wall hub packet 6 through a first connecting piece 4. The first connecting piece 4 comprises a connecting piece middle section 42 which inclines upwards from inside to outside, a connecting piece lower section 43 which extends inwards from the lower end of the connecting piece middle section 42 and a connecting piece upper section 41 which extends upwards from the upper end of the connecting piece middle section 42, the connecting piece middle section 42 is positioned above the opening of the vehicle body longitudinal beam 7, the connecting piece lower section 43 is in lap joint with the end part of the upper cross beam 1, the connecting piece upper section 41 is in lap joint with the side wall hub packet 6, a closed cavity structure is formed above the vehicle body longitudinal beam 7, the size of a Z-direction closed cavity is increased as much as possible, rigidity is improved, and light weight is ensured.
The lower cross beam 2 comprises a lower cross beam middle section 21 and a bending part 22 which is bent and extended backwards from the left end and the right end of the lower cross beam middle section 21, the lower cross beam middle section 21 corresponds to the upper cross beam 1 middle section, and the free end of the bending part 22 is connected with the vehicle body longitudinal beam 7 through a second connecting piece 5; the bending part 22 and the lower cross beam middle section 21 are connected smoothly as possible, and the strength deficiency caused by stress concentration is reduced.
In order to ensure the smooth molding of the lower cross beam 2, a process through hole 24 is arranged in the middle of the lower cross beam 2.
One end of the second connecting piece 5 is in lap joint with the end part of the lower cross beam 2, and the other end of the second connecting piece 5 is in lap joint with the outer wall of the vehicle body longitudinal beam 7. Specifically, the end part of the second connecting piece 5, which is lapped with the outer wall of the vehicle body side rail 7, comprises a first mounting part lapped with the bottom surface of the upturned edge of the vehicle body side rail, a second mounting part lapped with the side plate of the vehicle body side rail and a third mounting part lapped with the bottom plate of the vehicle body side rail.
During the specific assembly, it is fixed with the first connecting piece 4 of entablature 1 and both sides through the trilateral overlap joint of spot welding, fixed with the second connecting piece 5 of entablature 2 and both sides through the trilateral overlap joint of spot welding, the three-layer overlap joint is formed through spot welding in 1 bottom surface of entablature and 3 top surfaces of back floor, 2 top surfaces of entablature and 3 bottom surfaces of back floor, forms two closed chambers that parallel from top to bottom. The first connecting piece 4 is connected with the side wall hub packet 6 through shielded welding, and the second connecting piece 5 is connected with the vehicle body longitudinal beam 7 through shielded welding. Therefore, the upper cross beam 1, the lower cross beam 2, the rear floor 3, the first connecting piece 4, the second connecting piece 5, the side wall hub packet 6 and the vehicle body longitudinal beam 7 form a complete chamber, and the integral rigidity of the rear floor area is improved.
A vehicle comprises a rear floor assembly, and the rear floor assembly comprises the rear floor reinforcing cross beam structure.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. The utility model provides a back floor reinforcing beam structure, includes entablature (1) and bottom end rail (2) that length extended along left right direction, entablature (1) and bottom end rail (2) respectively with the top surface and the bottom surface fixed connection on back floor (3), its characterized in that: the left end and the right end of the upper cross beam (1) are connected with a side wall hub bag (6) through a first connecting piece (4); the lower cross beam (2) comprises a lower cross beam middle section (21) and a bending part (22) which is bent and extended backwards from the left end and the right end of the lower cross beam middle section (21), the lower cross beam middle section (21) corresponds to the upper cross beam (1) middle section, and the free end of the bending part (22) is connected with the vehicle body longitudinal beam (7) through a second connecting piece (5); the end part of the bending part (22) far away from the middle section (21) of the lower cross beam is provided with a suspension mounting point (23).
2. The rear floor reinforcing beam structure according to claim 1, wherein: the first connecting piece (4) comprises a connecting piece middle section (42) which inclines upwards from inside to outside, a connecting piece lower section (43) which extends inwards from the lower end of the connecting piece middle section (42) and a connecting piece upper section (41) which extends upwards from the upper end of the connecting piece middle section (42), the connecting piece middle section (42) is positioned above an opening of the vehicle body longitudinal beam (7), the connecting piece lower section (43) is in lap joint with the end part of the upper cross beam (1), and the connecting piece upper section (41) is in lap joint with the side wall hub packet (6).
3. The rear floor reinforcing cross member structure according to claim 1 or 2, wherein: one end of the second connecting piece (5) is in lap joint with the end part of the lower cross beam (2), and the other end of the second connecting piece (5) is in lap joint with the outer wall of the vehicle body longitudinal beam (7).
4. The rear floor reinforcing beam structure according to claim 3, wherein: the end part of the second connecting piece (5) lapped with the outer wall of the vehicle body longitudinal beam (7) comprises a first installation part lapped with the bottom surface of the upper flanging of the vehicle body longitudinal beam, a second installation part lapped with the side plate of the vehicle body longitudinal beam and a third installation part lapped with the bottom plate of the vehicle body longitudinal beam.
5. The rear floor reinforcing beam structure according to claim 1 or 2, wherein: the cross section of the upper cross beam (1) is in a shape like a Chinese character 'ji', and the cross section of the lower cross beam (2) is in a shape like an inverted Chinese character 'ji'.
6. A vehicle comprising a rear floor assembly, characterized in that: the rear floor assembly comprises the rear floor reinforcing beam structure as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221343134.XU CN217554030U (en) | 2022-05-31 | 2022-05-31 | Rear floor reinforcing cross beam structure and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221343134.XU CN217554030U (en) | 2022-05-31 | 2022-05-31 | Rear floor reinforcing cross beam structure and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217554030U true CN217554030U (en) | 2022-10-11 |
Family
ID=83498886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221343134.XU Active CN217554030U (en) | 2022-05-31 | 2022-05-31 | Rear floor reinforcing cross beam structure and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217554030U (en) |
-
2022
- 2022-05-31 CN CN202221343134.XU patent/CN217554030U/en active Active
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