Automobile rear body structure and automobile

Abstract

The application belongs to the technical field of automobile assembly, and discloses an automobile rear body structure and an automobile. The automobile rear body structure comprises a right side wall rear assembly, a rear floor assembly, a spare tire fixing structure, a third-row seat assembly, a seat rotating fixing mechanism, a spare tire assembly, a left side wall rear assembly, a rear wall assembly and a roof rear cross beam assembly; the spare tire fixing structure is arranged on the right side wall rear assembly; the left and right ends of the third-row seat assembly are respectively provided with a seat rotating fixing mechanism; one end of the seat rotating fixing mechanism is connected with the rear floor assembly, and the other end of the seat rotating fixing mechanism is connected with the third-row seat assembly; the rear part of the rear floor assembly is provided with a seat storage pit structure, the third-row seat assembly can enter the seat storage pit structure through the seat rotating fixing mechanism after being turned over, and the position of the third-row seat assembly after being turned over is lower than the main plane of the rear floor assembly. The interior space is reasonably utilized, and the space and functional requirements of consumers are met.

Description

Technical Field

[0001] This invention relates to the field of automotive assembly technology, and more particularly to a rear body structure of an automobile and an automobile. Background Technology

[0002] As cars become increasingly common consumer goods, they are entering ordinary households. Currently, more and more automakers are developing 6- and 7-seater models to meet the overall travel needs of the whole family. For consumers, a car is a second mobile home, and space and functionality are key indicators that every consumer focuses on. Due to the diversity of individual consumers, their needs for car functions and space are becoming increasingly varied, making the functionality and expandability of the trunk space particularly important.

[0003] However, some 6- and 7-seater models currently on the market place the spare tire on the outside of the tailgate. However, due to the overall design of the vehicle, this placement not only looks unsightly to users but also doesn't meet the requirements of the vehicle's overall styling. If space permits, the spare tire can be placed under the rear floor inside the trunk. Because of its concealed location, this doesn't affect the aesthetics. However, because the spare tire is exposed and low to the ground, it is susceptible to damage from mud, sand, and other harsh environmental conditions. Furthermore, this method of securing the spare tire takes up more space in the vehicle's chassis. Also, since the spare tire compartment on the rear floor is used to store the spare tire, and the third-row seats on the rear floor only have a folding function, this only partially expands the trunk space, making it difficult to maximize space utilization. Summary of the Invention

[0004] The purpose of this invention is to provide a rear body structure for an automobile and an automobile in order to solve the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution: A rear body structure for an automobile includes a right side rear panel assembly, a rear floor assembly, a spare tire mounting structure, a third-row seat assembly, a seat rotation and mounting mechanism, a spare tire assembly, a left side rear panel assembly, a rear panel assembly, and a roof rear crossbeam assembly. The rear floor assembly and the rear panel assembly are located below the left side rear panel assembly and the right side rear panel assembly, with the rear side of the rear floor assembly fixedly connected to the rear panel assembly. The left and right sides of the rear floor assembly are fixedly connected to the left side rear panel assembly and the right side rear panel assembly, respectively, and the left and right sides of the rear panel assembly are fixedly connected to the left side rear panel assembly and the right side rear panel assembly, respectively. The roof rear crossbeam assembly is located above the left side rear panel assembly and the right side rear panel assembly, and the left and right sides of the roof rear crossbeam assembly are fixedly connected to the left side rear panel assembly and the right side rear panel assembly, respectively. The upper part of the main assembly and the right rear panel assembly are fixedly connected; the spare tire fixing structure is disposed on the right rear panel assembly; the spare tire assembly is detachably disposed on the spare tire fixing structure; the third row seat assembly is located between the left rear panel assembly and the right rear panel assembly, and a seat rotation fixing mechanism is respectively provided at the left and right ends of the third row seat assembly; one end of the seat rotation fixing mechanism is connected to the rear floor assembly, and the other end of the seat rotation fixing mechanism is connected to the third row seat assembly; a seat storage pit structure is provided at the rear of the rear floor assembly, and the third row seat assembly can enter the seat storage pit structure after being flipped by the seat rotation fixing mechanism, and the position of the flipped third row seat assembly is lower than the main plane of the rear floor assembly.

[0006] Optionally, the right rear abutment assembly includes a right C-pillar assembly, a right D-pillar assembly, a right rear wheel hub assembly, a first reinforcing crossbeam, a second reinforcing crossbeam, and a third reinforcing crossbeam; the two ends of the first reinforcing crossbeam are fixedly connected to the right C-pillar assembly and the right D-pillar assembly, respectively; the two ends of the second reinforcing crossbeam are fixedly connected to the right C-pillar assembly and the right D-pillar assembly, respectively; the right rear wheel hub assembly is located between the right C-pillar assembly and the right D-pillar assembly, and the front side of the right rear wheel hub assembly is fixedly connected to the rear side of the right C-pillar assembly; the two ends of the third reinforcing crossbeam are fixedly connected to the rear side of the right rear wheel hub assembly and the right D-pillar assembly, respectively.

[0007] Optionally, the second reinforcing crossbeam is provided with a first mounting point and a second mounting point for installing the spare tire fixing structure; the third reinforcing crossbeam is provided with a third mounting point and a fourth mounting point for installing the spare tire fixing structure; a first reinforcing longitudinal beam and a second reinforcing longitudinal beam are provided between the second reinforcing crossbeam and the third reinforcing crossbeam, the two ends of the first reinforcing longitudinal beam are respectively fixedly connected to the second reinforcing crossbeam and the third reinforcing crossbeam, and the two ends of the second reinforcing longitudinal beam are respectively fixedly connected to the second reinforcing crossbeam and the third reinforcing crossbeam.

[0008] Optionally, the spare tire fixing structure is provided with a first bolt through-hole structure, a second bolt through-hole structure, a third bolt through-hole structure, and a fourth bolt through-hole structure. The first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure are respectively aligned with the first mounting point, the second mounting point, the third mounting point, and the fourth mounting point. Each of the first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure is nested with a buffer sleeve. The buffer sleeve has bolt through holes, and four bolts pass through the bolt through holes provided on the first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure and are threadedly connected to the first mounting point, the second mounting point, the third mounting point, and the fourth mounting point.

[0009] Optionally, a circular tray structure is provided at the middle position of the spare tire fixing structure. The circular tray structure corresponds to the spare tire assembly. A threaded hole is provided at the center of the circular tray structure. The flange bolt passes through the center of the spare tire assembly and is threadedly connected to the threaded hole.

[0010] Optionally, the spare tire fixing structure is provided with a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, a fourth reinforcing rib, a fifth reinforcing rib, and a sixth reinforcing rib extending towards the circular tray structure; the spare tire fixing structure is also provided with a first weight-reducing hole, a second weight-reducing hole, a third weight-reducing hole, a fourth weight-reducing hole, a fifth weight-reducing hole, and a sixth weight-reducing hole, wherein the first weight-reducing hole is located between the first reinforcing rib and the second reinforcing rib, the second weight-reducing hole is located between the second reinforcing rib and the third reinforcing rib, the third weight-reducing hole is located between the third reinforcing rib and the fourth reinforcing rib, the fourth weight-reducing hole is located between the fourth reinforcing rib and the fifth reinforcing rib, the fifth weight-reducing hole is located between the fifth reinforcing rib and the sixth reinforcing rib, and the sixth weight-reducing hole is located between the sixth reinforcing rib and the first reinforcing rib.

[0011] Optionally, the seat rotation fixing mechanism includes a male hinge, a rotating shaft, and a female hinge; the male hinge is fixed to the frame of the third-row seat assembly and has a threaded through-hole structure; the female hinge has a first bolt mounting hole structure and a second bolt mounting hole structure on both sides, and two bolts pass through the first bolt mounting hole structure and the second bolt mounting hole structure respectively to be threadedly connected to the rear floor assembly; the female hinge has a rotating shaft through-hole structure aligned with the threaded through-hole structure; the rotating shaft is a circular bar structure, one end of the rotating shaft is rotatably connected to the rotating shaft through-hole structure, and the other end of the rotating shaft is provided with a threaded structure, which is screwed into the threaded through-hole structure.

[0012] An automobile, comprising the aforementioned rear body structure.

[0013] The beneficial effects of this invention are: The rear body structure of the automobile provided by this invention fixes the spare tire assembly to the right rear assembly via a spare tire fixing structure, allowing the spare tire assembly to be placed inside the automobile body. This not only improves aesthetics and does not affect the overall styling of the vehicle, but also solves the problems of occupying chassis space and easy damage to the spare tire caused by placing the spare tire assembly at the bottom of the vehicle body. At the same time, the seat rotation and fixing mechanism allows the third-row seat assembly to be folded and stored in the seat storage pit structure of the rear floor assembly. After folding and storing, the position of the third-row seat assembly is lower than the main plane of the rear floor assembly, making the passenger compartment and the trunk structure completely connected. This expands the interior space, realizes the rational use of interior space, and meets the diverse needs of consumers for space and function. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the rear body structure of an automobile provided by the present invention; Figure 2 This is a schematic diagram of the structure of the right rear enclosure assembly in this invention; Figure 3 This is a schematic diagram of the fixed assembly of the spare tire assembly in this invention; Figure 4 This is a schematic diagram of the assembly layout of the rear body structure of an automobile provided by the present invention; Figure 5 This is a schematic diagram of the flip-down storage of the third-row seat assembly in this invention; Figure 6 This is a schematic diagram of the spare tire fixing structure in this invention; Figure 7 This is a schematic diagram of the seat rotation and fixing mechanism in this invention.

[0016] In the picture: 1. Right side rear assembly; 2. Rear floor assembly; 2a. Seat storage recess structure; 2b. Main plane; 3. Spare tire fixing structure; 301. First bolt through hole structure; 302. Second bolt through hole structure; 303. Third bolt through hole structure; 304. Fourth bolt through hole structure; 305. Buffer sleeve; 305a. Bolt through hole; 306. Circular tray structure; 307. Threaded hole; 308. First reinforcing rib; 309. Second reinforcing rib; 310. Third reinforcing rib; 311. Fourth reinforcing rib; 312. Fifth reinforcing rib; 313. Sixth reinforcing rib; 314. First weight reduction hole; 315. Second weight reduction hole; 316. Third weight reduction hole; 317. Fourth weight reduction hole; 318. Fifth weight reduction hole; 319. Sixth weight reduction hole; 4. Third-row seat assembly; 5. Seat rotation and fixing mechanism; 501. Male hinge; 502. Rotation shaft; 503. Female hinge; 504. First bolt mounting hole structure; 505. Second bolt mounting hole structure; 506. Rotation shaft through hole structure; 507. Threaded through hole structure; 6. Spare tire assembly; 7. Left side rear panel assembly; 8. Rear panel assembly; 9. Right C-pillar assembly; 10. Right D-pillar assembly; 11. Right rear wheel hub assembly; 12. First reinforcing crossbeam; 13. Second reinforcing crossbeam; 13a. First mounting point; 13b. Second mounting point; 14. Third reinforcing crossbeam; 14a. Third mounting point; 14b. Fourth mounting point; 15. First reinforcing longitudinal beam; 16. Second reinforcing longitudinal beam; 17. Rear roof crossbeam assembly; 18. Flange bolts. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0018] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] like Figures 1 to 7As shown, the present invention provides a rear body structure of an automobile, including a right side rear assembly 1, a rear floor assembly 2, a spare tire fixing structure 3, a third-row seat assembly 4, a seat rotation fixing mechanism 5, a spare tire assembly 6, a left side rear assembly 7, a rear assembly 8, and a roof rear crossbeam assembly 17. The rear floor assembly 2 and the rear bulkhead assembly 8 are located below the left side rear bulkhead assembly 7 and the right side rear bulkhead assembly 1, with the rear side of the rear floor assembly 2 fixedly connected to the rear bulkhead assembly 8. The left and right sides of the rear floor assembly 2 are fixedly connected to the left side rear bulkhead assembly 7 and the right side rear bulkhead assembly 1, respectively, and the left and right sides of the rear bulkhead assembly 8 are fixedly connected to the left side rear bulkhead assembly 7 and the right side rear bulkhead assembly 1, respectively. The roof rear crossbeam assembly 17 is located above the left side rear bulkhead assembly 7 and the right side rear bulkhead assembly 1, with the left and right sides of the roof rear crossbeam assembly 17 fixedly connected to the upper parts of the left side rear bulkhead assembly 7 and the right side rear bulkhead assembly 1, respectively. The spare tire fixing structure 3 is located on the right side rear bulkhead assembly. 1. The spare tire assembly 6 is detachably mounted on the spare tire fixing structure 3. The third-row seat assembly 4 is located between the left rear assembly 7 and the right rear assembly 1. A seat rotation fixing mechanism 5 is provided at each of the left and right ends of the third-row seat assembly 4. One end of the seat rotation fixing mechanism 5 is connected to the rear floor assembly 2, and the other end of the seat rotation fixing mechanism 5 is connected to the third-row seat assembly 4. A seat storage pit structure 2a is provided at the rear of the rear floor assembly 2. The third-row seat assembly 4 can enter the seat storage pit structure 2a after being flipped by the seat rotation fixing mechanism 5, and the position of the flipped third-row seat assembly 4 is lower than the main plane 2b of the rear floor assembly 2.

[0023] The rear body structure of the automobile provided by this invention fixes the spare tire assembly 6 to the rear right side assembly 1 through the spare tire fixing structure 3, so that the spare tire assembly 6 can be placed inside the automobile body. This is not only aesthetically pleasing and does not affect the overall styling of the vehicle, but also solves the problems of occupying chassis space and easy damage to the spare tire caused by placing the spare tire assembly 6 at the bottom of the automobile body. At the same time, the seat rotation fixing mechanism 5 can fold and store the third-row seat assembly 4 in the seat storage pit structure 2a of the rear floor assembly 2. After folding and storing, the position of the third-row seat assembly 4 is lower than the main plane 2b of the rear floor assembly 2, so that the passenger compartment and the trunk structure are connected as a whole, thereby expanding the interior space, realizing the rational use of the interior space, and meeting the diverse needs of consumers for space and function.

[0024] In some embodiments, the right rear assembly 1 includes a right C-pillar assembly 9, a right D-pillar assembly 10, a right rear wheel hub assembly 11, a first reinforcing crossbeam 12, a second reinforcing crossbeam 13, and a third reinforcing crossbeam 14; the two ends of the first reinforcing crossbeam 12 are fixedly connected to the right C-pillar assembly 9 and the right D-pillar assembly 10, respectively; the two ends of the second reinforcing crossbeam 13 are fixedly connected to the right C-pillar assembly 9 and the right D-pillar assembly 10, respectively; the right rear wheel hub assembly 11 is located between the right C-pillar assembly 9 and the right D-pillar assembly 10, and the front side of the right rear wheel hub assembly 11 is fixedly connected to the rear side of the right C-pillar assembly 9; the two ends of the third reinforcing crossbeam 14 are fixedly connected to the rear side of the right rear wheel hub assembly 11 and the right D-pillar assembly 10, respectively. For example, the two ends of the first reinforcing crossbeam 12 are spot-welded to the right C-pillar assembly 9 and the right D-pillar assembly 10, respectively; the two ends of the second reinforcing crossbeam 13 are spot-welded to the right C-pillar assembly 9 and the right D-pillar assembly 10, respectively; the front side of the right rear wheel hub assembly 11 is spot-welded to the rear side of the right C-pillar assembly 9; and the two ends of the third reinforcing crossbeam 14 are spot-welded to the rear side of the right rear wheel hub assembly 11 and the right D-pillar assembly 10, respectively.

[0025] Optionally, the second reinforcing crossbeam 13 is provided with a first mounting point 13a and a second mounting point 13b for installing the spare tire fixing structure 3; the third reinforcing crossbeam 14 is provided with a third mounting point 14a and a fourth mounting point 14b for installing the spare tire fixing structure 3; a first reinforcing longitudinal beam 15 and a second reinforcing longitudinal beam 16 are provided between the second reinforcing crossbeam 13 and the third reinforcing crossbeam 14, respectively. The two ends of the first reinforcing longitudinal beam 15 are fixedly connected to the second reinforcing crossbeam 13 and the third reinforcing crossbeam 14, respectively, and the two ends of the second reinforcing longitudinal beam 16 are fixedly connected to the second reinforcing crossbeam 13 and the third reinforcing crossbeam 14, respectively. The second reinforcing crossbeam 13, the third reinforcing crossbeam 14, the first reinforcing longitudinal beam 15, and the second reinforcing longitudinal beam 16 form a complete rectangular closed beam system structure, which ensures the rigidity of the installation area of ​​the spare tire fixing structure 3, and also improves the modality of the right side rear assembly 1, solving the risk of cracking caused by excessive load on the right side rear assembly 1 due to the excessive weight of the spare tire assembly 6 itself.

[0026] In some embodiments, the spare tire fixing structure 3 is provided with a first bolt through-hole structure 301, a second bolt through-hole structure 302, a third bolt through-hole structure 303, and a fourth bolt through-hole structure 304. The first bolt through-hole structure 301, the second bolt through-hole structure 302, the third bolt through-hole structure 303, and the fourth bolt through-hole structure 304 are respectively aligned with the first mounting point 13a, the second mounting point 13b, the third mounting point 14a, and the fourth mounting point 14b; the ... The through-hole structure 302, the third bolt through-hole structure 303, and the fourth bolt through-hole structure 304 are all nested with buffer sleeves 305. The buffer sleeves 305 have bolt through holes 305a, through which four bolts pass to the first bolt through-hole structure 301, the second bolt through-hole structure 302, the third bolt through-hole structure 303, and the fourth bolt through-hole structure 304, respectively, and are threaded to the first mounting point 13a, the second mounting point 13b, the third mounting point 14a, and the fourth mounting point 14b. The buffer sleeves 305 provide good sound insulation, damping, and vibration reduction, absorbing and buffering the overall vibration of the spare tire assembly 6 during high-speed driving or in harsh road conditions, preventing localized cracking and failure of the spare tire fixing position on the right rear assembly 1 due to excessive local load on the spare tire fixing structure 3.

[0027] Optionally, a circular tray structure 306 is provided in the middle of the spare tire fixing structure 3. The circular tray structure 306 corresponds to the spare tire assembly 6. A threaded hole 307 is provided in the center of the circular tray structure 306. The flange bolt 18 passes through the center of the spare tire assembly 6 and is threaded to the threaded hole 307. The spare tire assembly 6 is firmly fixed to the spare tire fixing structure 3 by the flange bolt 18. Moreover, when the spare tire assembly 6 is needed, the flange bolt 18 can be unscrewed to facilitate the removal of the spare tire assembly 6.

[0028] In some embodiments, the spare tire fixing structure 3 is provided with a first reinforcing rib 308, a second reinforcing rib 309, a third reinforcing rib 310, a fourth reinforcing rib 311, a fifth reinforcing rib 312, and a sixth reinforcing rib 313 extending toward the circular tray structure 306; the spare tire fixing structure 3 is also provided with a first weight-reducing hole 314, a second weight-reducing hole 315, a third weight-reducing hole 316, a fourth weight-reducing hole 317, a fifth weight-reducing hole 318, and a sixth weight-reducing hole 319, wherein the first weight-reducing hole 314 is located at the first reinforcing rib 306. Between rib 308 and the second reinforcing rib 309, the second weight-reducing hole 315 is located between the second reinforcing rib 309 and the third reinforcing rib 310, the third weight-reducing hole 316 is located between the third reinforcing rib 310 and the fourth reinforcing rib 311, the fourth weight-reducing hole 317 is located between the fourth reinforcing rib 311 and the fifth reinforcing rib 312, the fifth weight-reducing hole 318 is located between the fifth reinforcing rib 312 and the sixth reinforcing rib 313, and the sixth weight-reducing hole 319 is located between the sixth reinforcing rib 313 and the first reinforcing rib 308. The first reinforcing rib 308, the second reinforcing rib 309, the third reinforcing rib 310, the fourth reinforcing rib 311, the fifth reinforcing rib 312, and the sixth reinforcing rib 313 are used to strengthen the overall rigidity of the spare tire fixing structure 3, so that the spare tire fixing structure 3 has good resistance to deformation; the first weight reduction hole 314, the second weight reduction hole 315, the third weight reduction hole 316, the fourth weight reduction hole 317, the fifth weight reduction hole 318, and the sixth weight reduction hole 319 are used to reduce the overall weight of the spare tire fixing structure 3, and at the same time, make the spare tire fixing structure 3 have good casting processability and reduce process forming defects during casting.

[0029] In some embodiments, the seat rotation fixing mechanism 5 includes a male hinge 501, a rotating shaft 502, and a female hinge 503; the male hinge 501 is fixed to the frame of the third-row seat assembly 4, and the male hinge 501 has a threaded through hole structure 507; the female hinge 503 has a first bolt mounting hole structure 504 and a second bolt mounting hole structure 505 on both sides, and two bolts pass through the first bolt mounting hole structure 504 and the second bolt mounting hole structure 505 respectively to be threadedly connected to the rear floor assembly 2; the female hinge 503 has a rotating shaft through hole structure 506 that aligns with the threaded through hole structure 507; the rotating shaft 502 is a round bar structure, one end of the rotating shaft 502 is rotatably connected to the rotating shaft through hole structure 506, and the other end of the rotating shaft 502 is provided with a threaded structure, which is screwed into the threaded through hole structure 507. The male hinge 501 is welded and fixed to the frame of the third-row seat assembly 4. When in use, the third-row seat assembly 4 is turned, and the third-row seat assembly 4 drives the rotating shaft 502 to rotate relative to the rotating shaft through hole structure 506 of the female hinge 503 through the male hinge 501. This realizes the folding and flipping storage function of the third-row seat assembly 4, which hides the third-row seat assembly 4 under the main plane 2b of the rear floor assembly 2. This makes the passenger compartment and the trunk structure completely connected, expands the interior space, realizes the rational use of the interior space, and meets the diverse needs of consumers for space and function.

[0030] The present invention also provides an automobile, including the aforementioned rear body structure. Since the automobile has the aforementioned rear body structure, it has the effects of the aforementioned rear body structure, and therefore will not be described in detail here.

[0031] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A rear body structure for an automobile, characterized in that, The system includes a right rear side panel assembly, a rear floor assembly, a spare tire mounting structure, a third-row seat assembly, a seat rotation and mounting mechanism, a spare tire assembly, a left rear side panel assembly, a rear panel assembly, and a roof rear crossbeam assembly. The rear floor assembly and the rear panel assembly are located below the left and right rear side panels, with the rear side of the rear floor assembly fixedly connected to the rear panel assembly. The left and right sides of the rear floor assembly are fixedly connected to the left and right rear side panels, respectively, and the left and right sides of the rear panel assembly are fixedly connected to the left and right rear side panels, respectively. The roof rear crossbeam assembly is located above the left and right rear side panels, and its left and right sides are fixedly connected to the left and right rear side panels, respectively. The upper part of the right side rear assembly is fixedly connected; the spare tire fixing structure is disposed on the right side rear assembly; the spare tire assembly is detachably disposed on the spare tire fixing structure; the third row seat assembly is located between the left side rear assembly and the right side rear assembly, and a seat rotation fixing mechanism is respectively disposed at both ends of the third row seat assembly; one end of the seat rotation fixing mechanism is connected to the rear floor assembly, and the other end of the seat rotation fixing mechanism is connected to the third row seat assembly; a seat storage pit structure is disposed at the rear of the rear floor assembly, and the third row seat assembly can enter the seat storage pit structure after being flipped over by the seat rotation fixing mechanism, and the position of the flipped third row seat assembly is lower than the main plane of the rear floor assembly; The right rear abutment assembly includes a right C-pillar assembly, a right D-pillar assembly, a right rear wheel hub assembly, a first reinforcing crossbeam, a second reinforcing crossbeam, and a third reinforcing crossbeam; the two ends of the first reinforcing crossbeam are fixedly connected to the right C-pillar assembly and the right D-pillar assembly, respectively; the two ends of the second reinforcing crossbeam are fixedly connected to the right C-pillar assembly and the right D-pillar assembly, respectively; the right rear wheel hub assembly is located between the right C-pillar assembly and the right D-pillar assembly, and the front side of the right rear wheel hub assembly is fixedly connected to the rear side of the right C-pillar assembly; the two ends of the third reinforcing crossbeam are fixedly connected to the rear side of the right rear wheel hub assembly and the right D-pillar assembly, respectively. The second reinforcing crossbeam is provided with a first mounting point and a second mounting point for installing the spare tire fixing structure; the third reinforcing crossbeam is provided with a third mounting point and a fourth mounting point for installing the spare tire fixing structure; a first reinforcing longitudinal beam and a second reinforcing longitudinal beam are provided between the second reinforcing crossbeam and the third reinforcing crossbeam, the two ends of the first reinforcing longitudinal beam are fixedly connected to the second reinforcing crossbeam and the third reinforcing crossbeam respectively, and the two ends of the second reinforcing longitudinal beam are fixedly connected to the second reinforcing crossbeam and the third reinforcing crossbeam respectively.

2. The automobile rear body structure according to claim 1, characterized in that, The spare tire fixing structure is provided with a first bolt through-hole structure, a second bolt through-hole structure, a third bolt through-hole structure, and a fourth bolt through-hole structure. The first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure are respectively aligned with the first mounting point, the second mounting point, the third mounting point, and the fourth mounting point. Each of the first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure is nested with a buffer sleeve. The buffer sleeve has bolt through holes, and four bolts pass through the bolt through holes provided in the first bolt through-hole structure, the second bolt through-hole structure, the third bolt through-hole structure, and the fourth bolt through-hole structure to be threadedly connected to the first mounting point, the second mounting point, the third mounting point, and the fourth mounting point.

3. The automobile rear body structure according to claim 2, characterized in that, A circular tray structure is provided in the middle of the spare tire fixing structure. The circular tray structure corresponds to the spare tire assembly. A threaded hole is provided in the center of the circular tray structure. The flange bolt passes through the center of the spare tire assembly and is threaded into the threaded hole.

4. The automobile rear body structure according to claim 3, characterized in that, The spare tire fixing structure is provided with a first reinforcing rib, a second reinforcing rib, a third reinforcing rib, a fourth reinforcing rib, a fifth reinforcing rib, and a sixth reinforcing rib extending towards the circular tray structure; the spare tire fixing structure is also provided with a first weight-reducing hole, a second weight-reducing hole, a third weight-reducing hole, a fourth weight-reducing hole, a fifth weight-reducing hole, and a sixth weight-reducing hole, wherein the first weight-reducing hole is located between the first reinforcing rib and the second reinforcing rib, the second weight-reducing hole is located between the second reinforcing rib and the third reinforcing rib, the third weight-reducing hole is located between the third reinforcing rib and the fourth reinforcing rib, the fourth weight-reducing hole is located between the fourth reinforcing rib and the fifth reinforcing rib, the fifth weight-reducing hole is located between the fifth reinforcing rib and the sixth reinforcing rib, and the sixth weight-reducing hole is located between the sixth reinforcing rib and the first reinforcing rib.

5. The automobile rear body structure according to claim 1, characterized in that, The seat rotation and fixing mechanism includes a male hinge, a rotating shaft, and a female hinge. The male hinge is fixed to the frame of the third-row seat assembly and has a threaded through-hole structure. The female hinge has a first bolt mounting hole structure and a second bolt mounting hole structure on both sides, and two bolts pass through the first bolt mounting hole structure and the second bolt mounting hole structure respectively to be threadedly connected to the rear floor assembly. The female hinge has a rotating shaft through-hole structure that aligns with the threaded through-hole structure. The rotating shaft is a circular bar structure, one end of which is rotatably connected to the rotating shaft through-hole structure, and the other end of which has a threaded structure that is screwed into the threaded through-hole structure.

6. A car, characterized in that, Includes the rear body structure of an automobile as described in any one of claims 1-5.

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