Vehicle body rear structure, body-in-white, and vehicle

Abstract

The application discloses a vehicle body rear structure, a body-in-white and a vehicle, and relates to the technical field of vehicle body structures.The vehicle body rear structure comprises a rear quarter outer panel, two rear longitudinal beam mounting plates, two reinforcing plates and a rear trailer cross beam assembly, the two rear longitudinal beam mounting plates are respectively arranged on the front side of the two ends of the rear quarter outer panel, the two reinforcing plates are respectively arranged on the two rear longitudinal beam mounting plates and located in the corresponding rear longitudinal beam end region, and the two ends of the rear trailer cross beam assembly are respectively connected with the two ends of the rear quarter outer panel, the two rear longitudinal beam mounting plates and the two reinforcing plates.The vehicle body rear structure in the embodiment of the application is provided with two reinforcing plates, the two reinforcing plates are respectively arranged on the two rear longitudinal beam mounting plates and located in the corresponding rear longitudinal beam end region, the connecting strength of the vehicle body rear structure is increased without changing other components of the original vehicle body rear structure, and the performance requirement of the rear trailer cross beam assembly is met.

Description

Technical Field

[0001] This invention relates to the field of vehicle body structure technology, and in particular to a rear body structure, a body-in-white, and a vehicle. Background Technology

[0002] A towable caravan is a type of motorhome that can be towed. It typically consists of a trailer and a caravan. The trailer is towed by a car, while the caravan is a mobile home that provides accommodation and living facilities. Towable caravans usually include amenities such as a kitchen, bathroom, bedroom, and living room, allowing travelers to enjoy the comfort and convenience of home while traveling. Currently, more and more people are seeking vehicles with towing capabilities to meet their lifestyle needs.

[0003] Currently, many users in the market achieve the function of towing a caravan by modifying the rear structure of the vehicle body. The modification process requires the removal of the original rear bumper beam. However, the performance requirements (mainly strength requirements) of the rear structure of the vehicle body for installing the rear towing crossbeam assembly are higher than those for installing the rear bumper beam. Usually, the rear structure of ordinary vehicle bodies cannot meet the performance requirements of installing the rear towing crossbeam assembly. This kind of modification will not only cause some damage to the vehicle, but may also cause some unnecessary economic losses. Summary of the Invention

[0004] This invention provides a rear body structure, a body-in-white, and a vehicle to solve the technical problem that existing rear body structures with installed rear anti-collision beams cannot meet the performance requirements of the installed rear towing beam assembly.

[0005] Firstly, a rear structure for a vehicle body is provided, including:

[0006] Rear panel of the vehicle;

[0007] Two rear longitudinal beam mounting plates are respectively located on the front sides of both ends of the rear bulkhead outer panel of the vehicle;

[0008] Two reinforcing plates are respectively disposed on the two rear longitudinal beam mounting plates and located in the corresponding rear longitudinal beam end areas;

[0009] The rear towing crossbeam assembly is connected at both ends to the two ends of the rear outer panel of the vehicle, the two rear longitudinal beam mounting plates, and the two reinforcing plates, respectively.

[0010] In some embodiments, the rear trailer crossbeam assembly includes:

[0011] Two end plates are provided at the rear ends of the rear side of the vehicle rear panel, and the two end plates are respectively connected to the two ends of the vehicle rear panel, the two rear longitudinal beam mounting plates and the two reinforcing plates;

[0012] Two crossbeam mounting plates are respectively mounted on the two end plates;

[0013] The crossbeam has two ends connected to the two crossbeam mounting plates respectively.

[0014] In some embodiments, the two ends of the rear outer panel, the two rear longitudinal beam mounting plates, the two reinforcing plates, and the two end plates are provided with a plurality of first bolt mounting holes.

[0015] In some embodiments, the two ends of the rear outer panel, the two rear longitudinal beam mounting plates, and the two end plates are further provided with a plurality of second bolt mounting holes.

[0016] In some embodiments, the rear trailer crossbeam assembly further includes:

[0017] The rear trailer is mounted on the front side of the middle part of the crossbeam;

[0018] The rear mounting plate of the rear trailer is located on the rear side of the middle part of the crossbeam, and the lower side of the rear mounting plate of the rear trailer is bent and connected to the lower side of the front mounting plate of the rear trailer.

[0019] The upper side of the rear trailer hitch mounting plate is connected to the middle of the crossbeam on the upper side of the rear trailer mounting plate and the upper side of the front trailer mounting plate by bolts, and the lower side of the rear trailer hitch mounting plate is connected to the lower side of the rear trailer mounting plate by bolts.

[0020] In some embodiments, the rear trailer crossbeam assembly further includes:

[0021] A sleeve with a through internal thread is provided. The first end of the sleeve is fixedly connected to the rear mounting plate of the rear trailer. A through hole is provided on the rear side of the middle part of the crossbeam. The second end of the sleeve passes through the through hole and abuts against the front side of the middle part of the crossbeam. The second end of the sleeve is connected to the front side of the middle part of the crossbeam and the upper side of the front mounting plate of the rear trailer by bolts. The second end of the sleeve is connected to the upper side of the rear trailer hook mounting plate by bolts.

[0022] In some embodiments, both of the crossbeam mounting plates are U-shaped and arranged opposite each other, the two crossbeam mounting plates are respectively welded to the two end plates, and the vertical surfaces of the two crossbeam mounting plates are respectively welded to the two ends of the crossbeam.

[0023] In some embodiments, the two reinforcing plates are welded to the front ends of the corresponding two rear longitudinal beam mounting plates and the rear outer panel of the vehicle to form an integral structure.

[0024] Secondly, a body-in-white is provided, including the aforementioned rear body structure.

[0025] Thirdly, a vehicle was provided, including the aforementioned body-in-white.

[0026] The beneficial effects of the technical solution provided by this invention include:

[0027] This invention provides a rear body structure, a body-in-white, and a vehicle. The rear body structure includes two reinforcing plates, each mounted on a rear longitudinal beam mounting plate and located within the corresponding end region of the rear longitudinal beam. This increases the connection strength of the rear body structure without altering other components, meeting the performance requirements of the towing beam assembly after installation. Furthermore, considering that the rear bulkhead outer panel and rear longitudinal beam mounting plates of this invention are identical to those of conventional vehicle models, mold sharing can be achieved, reducing development costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0029] Figure 1 A front view of a rear structure of a vehicle body provided in an embodiment of the present invention;

[0030] Figure 2 A rear view of a vehicle rear structure provided in an embodiment of the present invention;

[0031] Figure 3 This is a structural schematic diagram of the rear trailer crossbeam assembly provided in an embodiment of the present invention;

[0032] Figure 4 Provided for embodiments of the present invention Figure 2 A schematic diagram of the cross-section along the AA direction;

[0033] Figure 5 Provided for embodiments of the present invention Figure 2 A schematic diagram of the cross-section along the BB direction;

[0034] Figure 6 Provided for embodiments of the present invention Figure 3 A schematic diagram of the cross-section along the CC direction;

[0035] Figure label:

[0036] 1. Rear panel; 11. First bolt mounting hole; 12. Second bolt mounting hole;

[0037] 2. Rear longitudinal beam mounting plate;

[0038] 3. Reinforcing plate;

[0039] 4. Rear trailer crossbeam assembly; 41. End plate; 42. Crossbeam mounting plate; 43. Crossbeam; 431. Through hole; 44. Rear trailer front mounting plate; 45. Rear trailer rear mounting plate; 46. Rear trailer hook mounting plate; 47. Sleeve;

[0040] 5. Rear longitudinal beam. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This invention provides a rear vehicle structure that solves the technical problem that existing rear vehicle structures with rear anti-collision beams cannot meet the performance requirements of the rear towing beam assembly.

[0043] See Figure 1 As shown, an embodiment of the present invention provides a rear structure of a vehicle body, including: a rear bulkhead 1, two rear longitudinal beam mounting plates 2, two reinforcing plates 3, and a rear towing crossbeam assembly 4.

[0044] The two rear longitudinal beam mounting plates 2 are respectively located on the front sides of both ends of the rear bulkhead outer panel 1. Specifically, see... Figure 1 and Figure 2 As shown, the rear outer panel 1 has two mounting surfaces at both ends, and the two rear longitudinal beam mounting plates 2 are respectively attached to the two mounting surfaces and connected to the front sides of both ends of the rear outer panel 1. The front sides of both ends of the rear outer panel 1 point towards the front of the vehicle.

[0045] The two reinforcing plates 3 are respectively disposed on the two rear longitudinal beam mounting plates 2 and located in the end areas of the corresponding rear longitudinal beams 5. Specifically, see... Figure 1 As shown, the reinforcing plate 3 is located in the end area of ​​the rear longitudinal beam 5 and is fitted and connected to the rear longitudinal beam mounting plate 2.

[0046] The two ends of the rear towing crossbeam assembly 4 are respectively connected to the two ends of the rear bulkhead outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. (See also...) Figure 2 As shown, the two ends of the rear towing crossbeam assembly 4 are respectively attached to the rear sides of the two ends of the rear outer panel 1, and are connected to the two ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2 and the two reinforcing plates 3 by fasteners.

[0047] The rear structure of the vehicle body in this embodiment of the invention includes two reinforcing plates, which are respectively disposed on the two rear longitudinal beam mounting plates and located in the corresponding rear longitudinal beam end areas. This increases the connection strength of the rear structure without altering other components of the original rear structure, meeting the performance requirements of the towing beam assembly after installation. Furthermore, considering that the rear outer panel and rear longitudinal beam mounting plates of this embodiment are the same as those of conventional vehicle models, mold sharing can be achieved, reducing development costs.

[0048] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the rear trailer crossbeam assembly 4 includes: two end plates 41, two crossbeam mounting plates 42, and a crossbeam 43. Optionally, the crossbeam 43 is made of square steel profile, which has low usage cost and facilitates mass production.

[0049] Two end plates 41 are disposed on the rear sides of both ends of the rear outer panel 1, and the two end plates 41 are respectively connected to both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. Two crossbeam mounting plates 42 are respectively disposed on the two end plates 41, and both ends of the crossbeam 43 are respectively connected to the two crossbeam mounting plates 42.

[0050] Further, see Figure 4 As shown, the rear outer panel 1, the two ends of the rear longitudinal beam mounting plates 2, the two reinforcing plates 3, and the two end plates 41 are provided with a plurality of first bolt mounting holes 11. These first bolt mounting holes 11 allow for quick installation or removal of the crossbeam 43, facilitating manufacturing. Furthermore, since the crossbeam 43 will subsequently bear a significant load, this also facilitates later maintenance and upkeep. Optionally, this embodiment of the invention provides four first bolt mounting holes 11.

[0051] Furthermore, see Figure 5 As shown, multiple second bolt mounting holes 12 are also provided on both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two end plates 41. The second bolt mounting holes 12 can be bolt mounting holes used for mounting rear anti-collision beams in conventional vehicle rear structures. In this embodiment of the invention, the bolt mounting holes in the original structure are used as mounting holes for the rear towing crossbeam assembly 4, which is more versatile and equivalent to being able to produce the rear body structures of two different vehicle models on the same production line.

[0052] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 and Figure 6 As shown, the rear trailer crossbeam assembly 4 also includes: a rear trailer front mounting plate 44, a rear trailer rear mounting plate 45, and a rear trailer hook mounting plate 46.

[0053] The rear trailer front mounting plate 44 is located on the front side of the middle portion of the crossbeam 43, and the rear trailer rear mounting plate 45 is located on the rear side of the middle portion of the crossbeam 43. The lower side of the rear trailer rear mounting plate 45 is bent and connected to the lower side of the rear trailer front mounting plate 44. The upper side of the rear trailer hook mounting plate 46 is connected to the upper side of the rear trailer rear mounting plate 45, the middle portion of the crossbeam 43, and the upper side of the rear trailer front mounting plate 44 by bolts. The lower side of the rear trailer hook mounting plate 46 is connected to the lower side of the rear trailer rear mounting plate 45 by bolts. The structure is simple and easy to install and disassemble.

[0054] Further, see Figure 6 As shown, the rear towing crossbeam assembly 4 further includes: a sleeve 47 with a through internal thread. The first end of the sleeve is fixedly connected to the rear mounting plate 45 of the rear towing vehicle. A through hole 431 is provided on the rear side of the middle portion of the crossbeam 43. The second end of the sleeve 47 passes through the through hole 431 and abuts against the front side of the middle portion of the crossbeam 43. The second end of the sleeve 47 is connected to the front side of the middle portion of the crossbeam 43 and the upper side of the front mounting plate 44 of the rear towing vehicle by bolts. The second end of the sleeve 47 is also connected to the upper side of the rear trailer hook mounting plate 46 by bolts. The sleeve 47 can provide strong X-direction (vehicle front-rear direction) support for the crossbeam 43. Furthermore, the use of the sleeve 47 allows the front and rear of the crossbeam 43 to be connected by bolts, which reduces welding and avoids the heat effect of welding that reduces the performance of the crossbeam 43. It also avoids the formation of martensitic structure during cooling after welding, which would make the crossbeam 43 brittle and hard, failing to meet the durability requirements of the vehicle body structure.

[0055] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, both crossbeam mounting plates 42 are U-shaped and arranged opposite each other. The two crossbeam mounting plates 42 are respectively welded to the two end plates 41, and the vertical surfaces of the two crossbeam mounting plates 42 are respectively welded to both ends of the crossbeam 43. The welding positions of the two crossbeam mounting plates 42 to the two end plates 41 can be adjusted as needed, and the welding positions of the vertical surfaces of the two crossbeam mounting plates 42 to both ends of the crossbeam 43 can be adjusted as needed. This allows for adjustment of the crossbeam 43 in the X, Y, and Z directions, enabling its application to multiple different vehicle models, reducing the cost and expense of redevelopment, and lowering the risk of problems arising from strength and durability testing when redesigning a new structure.

[0056] As an optional implementation, in one embodiment of the invention, the two reinforcing plates 3 are respectively welded to the front sides of the two corresponding rear longitudinal beam mounting plates 2 and the front sides of the rear outer panel 1 to form an integral structure, thereby improving the structural strength.

[0057] This invention provides a body-in-white, including the aforementioned rear body structure, which includes: a rear bulkhead outer panel 1, two rear longitudinal beam mounting plates 2, two reinforcing plates 3, and a rear towing crossbeam assembly 4.

[0058] The two rear longitudinal beam mounting plates 2 are respectively located on the front sides of both ends of the rear bulkhead outer panel 1. Specifically, see... Figure 1 and Figure 2 As shown, the rear outer panel 1 has two mounting surfaces at both ends, and the two rear longitudinal beam mounting plates 2 are respectively attached to the two mounting surfaces and connected to the front sides of both ends of the rear outer panel 1. The front sides of both ends of the rear outer panel 1 point towards the front of the vehicle.

[0059] The two reinforcing plates 3 are respectively disposed on the two rear longitudinal beam mounting plates 2 and located in the end areas of the corresponding rear longitudinal beams 5. Specifically, see... Figure 1 As shown, the reinforcing plate 3 is located in the end area of ​​the rear longitudinal beam 5 and is fitted and connected to the rear longitudinal beam mounting plate 2.

[0060] The two ends of the rear towing crossbeam assembly 4 are respectively connected to the two ends of the rear bulkhead outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. (See also...) Figure 2 As shown, the two ends of the rear towing crossbeam assembly 4 are respectively attached to the rear sides of the two ends of the rear outer panel 1, and are connected to the two ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2 and the two reinforcing plates 3 by fasteners.

[0061] In this embodiment of the invention, the body-in-white has two reinforcing plates in its rear structure. These two reinforcing plates are respectively mounted on two rear longitudinal beam mounting plates and located in the corresponding end regions of the rear longitudinal beams. This increases the connection strength of the rear structure without altering other components of the original rear body structure, thus meeting the performance requirements of the towing beam assembly after installation. Furthermore, considering that the rear outer panel and rear longitudinal beam mounting plates of this embodiment are the same as those of conventional vehicle models, mold sharing can be achieved, reducing development costs.

[0062] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the rear trailer crossbeam assembly 4 includes: two end plates 41, two crossbeam mounting plates 42, and a crossbeam 43. Optionally, the crossbeam 43 is made of square steel profile, which has low usage cost and facilitates mass production.

[0063] Two end plates 41 are disposed on the rear sides of both ends of the rear outer panel 1, and the two end plates 41 are respectively connected to both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. Two crossbeam mounting plates 42 are respectively disposed on the two end plates 41, and both ends of the crossbeam 43 are respectively connected to the two crossbeam mounting plates 42.

[0064] Further, see Figure 4 As shown, the rear outer panel 1, the two ends of the rear longitudinal beam mounting plates 2, the two reinforcing plates 3, and the two end plates 41 are provided with a plurality of first bolt mounting holes 11. These first bolt mounting holes 11 allow for quick installation or removal of the crossbeam 43, facilitating manufacturing. Furthermore, since the crossbeam 43 will subsequently bear a significant load, this also facilitates later maintenance and upkeep. Optionally, this embodiment of the invention provides four first bolt mounting holes 11.

[0065] Furthermore, see Figure 5 As shown, multiple second bolt mounting holes 12 are also provided on both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two end plates 41. The second bolt mounting holes 12 can be bolt mounting holes used for mounting rear anti-collision beams in conventional vehicle rear structures. In this embodiment of the invention, the bolt mounting holes in the original structure are used as mounting holes for the rear towing crossbeam assembly 4, which is more versatile and equivalent to being able to produce the rear body structures of two different vehicle models on the same production line.

[0066] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 and Figure 6 As shown, the rear trailer crossbeam assembly 4 also includes: a rear trailer front mounting plate 44, a rear trailer rear mounting plate 45, and a rear trailer hook mounting plate 46.

[0067] The rear trailer front mounting plate 44 is located on the front side of the middle portion of the crossbeam 43, and the rear trailer rear mounting plate 45 is located on the rear side of the middle portion of the crossbeam 43. The lower side of the rear trailer rear mounting plate 45 is bent and connected to the lower side of the rear trailer front mounting plate 44. The upper side of the rear trailer hook mounting plate 46 is connected to the upper side of the rear trailer rear mounting plate 45, the middle portion of the crossbeam 43, and the upper side of the rear trailer front mounting plate 44 by bolts. The lower side of the rear trailer hook mounting plate 46 is connected to the lower side of the rear trailer rear mounting plate 45 by bolts. The structure is simple and easy to install and disassemble.

[0068] Further, see Figure 6As shown, the rear towing crossbeam assembly 4 further includes: a sleeve 47 with a through internal thread. The first end of the sleeve is fixedly connected to the rear mounting plate 45 of the rear towing vehicle. A through hole 431 is provided on the rear side of the middle portion of the crossbeam 43. The second end of the sleeve 47 passes through the through hole 431 and abuts against the front side of the middle portion of the crossbeam 43. The second end of the sleeve 47 is connected to the front side of the middle portion of the crossbeam 43 and the upper side of the front mounting plate 44 of the rear towing vehicle by bolts. The second end of the sleeve 47 is also connected to the upper side of the rear trailer hook mounting plate 46 by bolts. The sleeve 47 can provide strong X-direction (vehicle front-rear direction) support for the crossbeam 43. Furthermore, the use of the sleeve 47 allows the front and rear of the crossbeam 43 to be connected by bolts, which reduces welding and avoids the heat effect of welding that reduces the performance of the crossbeam 43. It also avoids the formation of martensitic structure during cooling after welding, which would make the crossbeam 43 brittle and hard, failing to meet the durability requirements of the vehicle body structure.

[0069] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, both crossbeam mounting plates 42 are U-shaped and arranged opposite each other. The two crossbeam mounting plates 42 are respectively welded to the two end plates 41, and the vertical surfaces of the two crossbeam mounting plates 42 are respectively welded to both ends of the crossbeam 43. The welding positions of the two crossbeam mounting plates 42 to the two end plates 41 can be adjusted as needed, and the welding positions of the vertical surfaces of the two crossbeam mounting plates 42 to both ends of the crossbeam 43 can be adjusted as needed. This allows for adjustment of the crossbeam 43 in the X, Y, and Z directions, enabling its application to multiple different vehicle models, reducing the cost and expense of redevelopment, and lowering the risk of problems arising from strength and durability testing when redesigning a new structure.

[0070] As an optional implementation, in one embodiment of the invention, the two reinforcing plates 3 are respectively welded to the front sides of the two corresponding rear longitudinal beam mounting plates 2 and the front sides of the rear outer panel 1 to form an integral structure, thereby improving the structural strength.

[0071] This invention also provides a vehicle including the aforementioned body-in-white, wherein the rear structure of the body-in-white includes: a rear bulkhead 1, two rear longitudinal beam mounting plates 2, two reinforcing plates 3, and a rear towing crossbeam assembly 4.

[0072] The two rear longitudinal beam mounting plates 2 are respectively located on the front sides of both ends of the rear bulkhead outer panel 1. Specifically, see... Figure 1 and Figure 2 As shown, the rear outer panel 1 has two mounting surfaces at both ends, and the two rear longitudinal beam mounting plates 2 are respectively attached to the two mounting surfaces and connected to the front sides of both ends of the rear outer panel 1. The front sides of both ends of the rear outer panel 1 point towards the front of the vehicle.

[0073] The two reinforcing plates 3 are respectively disposed on the two rear longitudinal beam mounting plates 2 and located in the end areas of the corresponding rear longitudinal beams 5. Specifically, see... Figure 1 As shown, the reinforcing plate 3 is located in the end area of ​​the rear longitudinal beam 5 and is fitted and connected to the rear longitudinal beam mounting plate 2.

[0074] The two ends of the rear towing crossbeam assembly 4 are respectively connected to the two ends of the rear bulkhead outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. (See also...) Figure 2 As shown, the two ends of the rear towing crossbeam assembly 4 are respectively attached to the rear sides of the two ends of the rear outer panel 1, and are connected to the two ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2 and the two reinforcing plates 3 by fasteners.

[0075] In this embodiment of the invention, the vehicle body-in-white has two reinforcing plates in its rear structure. These two reinforcing plates are respectively mounted on two rear longitudinal beam mounting plates and located in the corresponding end regions of the rear longitudinal beams. This increases the connection strength of the rear structure without altering other components of the original rear body structure, thus meeting the performance requirements of the towing beam assembly after installation. Furthermore, considering that the rear outer panel and rear longitudinal beam mounting plates of this embodiment are the same as those of conventional vehicle models, mold sharing can be achieved, reducing development costs.

[0076] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 As shown, the rear trailer crossbeam assembly 4 includes: two end plates 41, two crossbeam mounting plates 42, and a crossbeam 43. Optionally, the crossbeam 43 is made of square steel profile, which has low usage cost and facilitates mass production.

[0077] Two end plates 41 are disposed on the rear sides of both ends of the rear outer panel 1, and the two end plates 41 are respectively connected to both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two reinforcing plates 3. Two crossbeam mounting plates 42 are respectively disposed on the two end plates 41, and both ends of the crossbeam 43 are respectively connected to the two crossbeam mounting plates 42.

[0078] Further, see Figure 4 As shown, the rear outer panel 1, the two ends of the rear longitudinal beam mounting plates 2, the two reinforcing plates 3, and the two end plates 41 are provided with a plurality of first bolt mounting holes 11. These first bolt mounting holes 11 allow for quick installation or removal of the crossbeam 43, facilitating manufacturing. Furthermore, since the crossbeam 43 will subsequently bear a significant load, this also facilitates later maintenance and upkeep. Optionally, this embodiment of the invention provides four first bolt mounting holes 11.

[0079] Furthermore, see Figure 5As shown, multiple second bolt mounting holes 12 are also provided on both ends of the rear outer panel 1, the two rear longitudinal beam mounting plates 2, and the two end plates 41. The second bolt mounting holes 12 can be bolt mounting holes used for mounting rear anti-collision beams in conventional vehicle rear structures. In this embodiment of the invention, the bolt mounting holes in the original structure are used as mounting holes for the rear towing crossbeam assembly 4, which is more versatile and equivalent to being able to produce the rear body structures of two different vehicle models on the same production line.

[0080] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3 and Figure 6 As shown, the rear trailer crossbeam assembly 4 also includes: a rear trailer front mounting plate 44, a rear trailer rear mounting plate 45, and a rear trailer hook mounting plate 46.

[0081] The rear trailer front mounting plate 44 is located on the front side of the middle portion of the crossbeam 43, and the rear trailer rear mounting plate 45 is located on the rear side of the middle portion of the crossbeam 43. The lower side of the rear trailer rear mounting plate 45 is bent and connected to the lower side of the rear trailer front mounting plate 44. The upper side of the rear trailer hook mounting plate 46 is connected to the upper side of the rear trailer rear mounting plate 45, the middle portion of the crossbeam 43, and the upper side of the rear trailer front mounting plate 44 by bolts. The lower side of the rear trailer hook mounting plate 46 is connected to the lower side of the rear trailer rear mounting plate 45 by bolts. The structure is simple and easy to install and disassemble.

[0082] Further, see Figure 6 As shown, the rear towing crossbeam assembly 4 further includes: a sleeve 47 with a through internal thread. The first end of the sleeve is fixedly connected to the rear mounting plate 45 of the rear towing vehicle. A through hole 431 is provided on the rear side of the middle portion of the crossbeam 43. The second end of the sleeve 47 passes through the through hole 431 and abuts against the front side of the middle portion of the crossbeam 43. The second end of the sleeve 47 is connected to the front side of the middle portion of the crossbeam 43 and the upper side of the front mounting plate 44 of the rear towing vehicle by bolts. The second end of the sleeve 47 is also connected to the upper side of the rear trailer hook mounting plate 46 by bolts. The sleeve 47 can provide strong X-direction (vehicle front-rear direction) support for the crossbeam 43. Furthermore, the use of the sleeve 47 allows the front and rear of the crossbeam 43 to be connected by bolts, which reduces welding and avoids the heat effect of welding that reduces the performance of the crossbeam 43. It also avoids the formation of martensitic structure during cooling after welding, which would make the crossbeam 43 brittle and hard, failing to meet the durability requirements of the vehicle body structure.

[0083] As an optional implementation, in one embodiment of the invention, see [link to relevant documentation]. Figure 3As shown, both crossbeam mounting plates 42 are U-shaped and arranged opposite each other. The two crossbeam mounting plates 42 are respectively welded to the two end plates 41, and the vertical surfaces of the two crossbeam mounting plates 42 are respectively welded to both ends of the crossbeam 43. The welding positions of the two crossbeam mounting plates 42 to the two end plates 41 can be adjusted as needed, and the welding positions of the vertical surfaces of the two crossbeam mounting plates 42 to both ends of the crossbeam 43 can be adjusted as needed. This allows for adjustment of the crossbeam 43 in the X, Y, and Z directions, enabling its application to multiple different vehicle models, reducing the cost and expense of redevelopment, and lowering the risk of problems arising from strength and durability testing when redesigning a new structure.

[0084] As an optional implementation, in one embodiment of the invention, the two reinforcing plates 3 are respectively welded to the front sides of the two corresponding rear longitudinal beam mounting plates 2 and the front sides of the rear outer panel 1 to form an integral structure, thereby improving the structural strength.

[0085] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, 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, and therefore should not be construed as a limitation of the invention. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0086] It should be noted that in this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0087] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features of the invention herein.

Claims

1. A rear structure of a vehicle body, characterized in that, include: Rear panel (1); Two rear longitudinal beam mounting plates (2) are respectively located on the front sides of both ends of the rear outer panel (1); Two reinforcing plates (3) are respectively provided on the two rear longitudinal beam mounting plates (2) and located in the end area of ​​the corresponding rear longitudinal beam (5); The rear towing crossbeam assembly (4) is connected at both ends to the two ends of the rear outer panel (1), the two rear longitudinal beam mounting plates (2), and the two reinforcing plates (3), respectively. The rear trailer crossbeam assembly (4) includes: Two end plates (41) are provided at the rear ends of the rear side of the vehicle rear panel (1). The two end plates (41) are respectively connected to the two ends of the vehicle rear panel (1), the two rear longitudinal beam mounting plates (2) and the two reinforcing plates (3). Two crossbeam mounting plates (42) are respectively mounted on the two end plates (41); A crossbeam (43) has two ends connected to two crossbeam mounting plates (42) respectively; The rear trailer is mounted on a front plate (44), which is located on the front side of the middle part of the crossbeam (43); The rear tow trailer mounting plate (45) is located on the middle rear side of the crossbeam (43), and the lower side of the rear tow trailer mounting plate (45) is bent and connected to the lower side of the rear tow trailer front mounting plate (44). The upper side of the rear trailer hook mounting plate (46) is connected to the middle of the crossbeam (43) on the upper side of the rear trailer mounting plate (45) and the upper side of the rear trailer front mounting plate (44) by bolts. The lower side of the rear trailer hook mounting plate (46) is connected to the lower side of the rear trailer mounting plate (45) by bolts. A sleeve (47) with a through internal thread is provided. The first end of the sleeve is fixedly connected to the rear mounting plate (45) of the rear trailer. A through hole (431) is provided on the rear side of the middle part of the crossbeam (43). The second end of the sleeve (47) passes through the through hole (431) and abuts against the front side of the middle part of the crossbeam (43). The second end of the sleeve (47) is connected to the front side of the middle part of the crossbeam (43) and the upper side of the front mounting plate (44) of the rear trailer by bolts. The first end of the sleeve (47) is connected to the upper side of the rear trailer hook mounting plate (46) by bolts. Both of the beam mounting plates (42) are U-shaped and arranged opposite each other. The two beam mounting plates (42) are respectively welded to the two end plates (41), and the vertical surfaces of the two beam mounting plates (42) are respectively welded to the two ends of the beam (43).

2. The rear structure of the vehicle body according to claim 1, characterized in that: Multiple first bolt mounting holes (11) are provided on both ends of the rear outer panel (1), the two rear longitudinal beam mounting plates (2), the two reinforcing plates (3) and the two end plates (41).

3. The rear structure of the vehicle body according to claim 1, characterized in that: Multiple second bolt mounting holes (12) are provided on both ends of the rear outer panel (1), the two rear longitudinal beam mounting plates (2) and the two end plates (41).

4. The rear structure of the vehicle body according to claim 1, characterized in that: The two reinforcing plates (3) are welded to the front ends of the two corresponding rear longitudinal beam mounting plates (2) and the rear outer panel (1) to form an integral structure.

5. A white body, characterized in that, Includes the rear body structure as described in any one of claims 1-4.

6. A vehicle, characterized in that, Including the body-in-white as described in claim 5.

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