Rear towing device and vehicle

Abstract

The utility model relates to the technical field of vehicle parts, and provides a rear towing device and a vehicle, and the rear towing device comprises an assembly beam and a towing bracket. The towing bracket comprises a mounting part and a towing part connected to the mounting part, the mounting part is provided with a first mounting surface and a second mounting surface, a preset included angle is formed between the first mounting surface and the second mounting surface, the first mounting surface is connected to one end surface of the assembly beam in the first direction, and the second mounting surface is connected to the other end surface of the assembly beam in the second direction; the second mounting face is connected to the other end face of the assembly beam in the second direction, so that the towing support is fixed in the first direction and the second direction relative to the assembly beam, and the first direction is not parallel to the second direction. The rear towing device is simple in structure, high in connection strength with the vehicle body and not prone to deformation, and effective towing of the vehicle is enhanced.

Description

Technical Field

[0001] This application relates to the field of vehicle component technology, and in particular to a rear towing device and vehicle. Background Technology

[0002] A tow hook is a vehicle accessory used to tow RVs, trucks, or for off-road rescue. It is usually installed at the rear of the vehicle, at the same height as or slightly lower than the bumper. A tow hook mainly consists of a hook for connecting tow belts, chains, or other towing structures, and a connecting structure for attaching the hook to the vehicle body.

[0003] However, with the increasing popularity of electric vehicles, RVs and other models in the domestic automobile market, the curb weight of automobiles has generally increased. The strength of tow hooks in related technologies is insufficient to meet the requirements for towing and dragging heavy vehicles. Moreover, in order to ensure connection strength, tow hooks in related technologies are often connected to the vehicle body through a relatively complex connection structure, making the entire tow hook structure complex and cumbersome to assemble. Utility Model Content

[0004] This application provides a rear towing device and a vehicle. The rear towing device has a simple structure, high connection strength with the vehicle body, is not easily deformed, and enhances the effective towing of the vehicle.

[0005] A first aspect of this application provides a rear trailer hitch, including an assembly beam and a trailer support. The assembly beam has multiple end faces. The trailer support includes a mounting portion and a trailer portion connected to the mounting portion. The mounting portion has a first mounting surface and a second mounting surface, with a predetermined included angle between the first mounting surface and the second mounting surface. The first mounting surface is detachably connected to one end face of the assembly beam along a first direction, and the second mounting surface is detachably connected to the other end face of the assembly beam along a second direction, such that the trailer support is fixed relative to the assembly beam in the first and second directions, where the first and second directions are not parallel.

[0006] According to the rear towing device of the first aspect of this application, the mounting part has a first mounting surface and a second mounting surface, which can be installed on the assembly beam. The structure is simple and installation is convenient. Furthermore, the first and second mounting surfaces are respectively installed on different end faces of the assembly beam, allowing the mounting part to be fixed relative to the assembly beam in two different directions. This enables the mounting part to bear forces in both directions, which is beneficial for the transmission of towing force and improves the effective towing of large vehicles. Additionally, the increased number of connection points also increases the towing strength of the mounting part.

[0007] In one possible implementation, the mounting portion includes at least a first mounting portion and a second mounting portion, the second mounting portion being connected to one end of the first mounting portion, the towing portion being connected to one end of the first mounting portion facing away from the second mounting portion, the first mounting surface being located in the first mounting portion, and the second mounting surface being located in the second mounting portion.

[0008] In this embodiment, by providing a first mounting part and a second mounting part, which are used to provide a first mounting surface and a second mounting surface, the first mounting part and the second mounting part are connected to the assembly beam, thus making the installation position more flexible.

[0009] In one possible implementation, one end of the first mounting surface and the second mounting surface are connected, and the included angle between the first mounting surface and the second mounting surface satisfies the condition: greater than 0° and less than 180°.

[0010] In one possible implementation, the first mounting surface and the second mounting surface are perpendicular, the first mounting part further includes at least one first mounting hole disposed on the first mounting surface, the second mounting part further includes at least one second mounting hole disposed on the second mounting surface, the first mounting part is connected to the assembly beam by a first fastener and the first mounting hole, and the second mounting part is connected to the assembly beam by a second fastener and the second mounting hole.

[0011] In this embodiment, the first mounting part and the second mounting part can be mounted on the assembly beam by the cooperation of the fastener and the mounting hole.

[0012] In one possible implementation, the first mounting portion is further provided with a through groove, dividing the first mounting portion into two spaced sub-parts, each of which is provided with a first mounting hole.

[0013] In this embodiment of the application, by setting a through groove, the material used in the first mounting part can be saved and the cost reduced.

[0014] In one possible implementation, the assembly beam includes a first assembly and a second assembly connected together, and the towing bracket is connected to the second assembly.

[0015] In this embodiment of the application, by setting the assembly beam as a combination of two assemblies, the two assemblies can be manufactured separately, which reduces the manufacturing difficulty of the assembly beam and increases production efficiency.

[0016] In one possible implementation, the second assembly has two opposing side end plates, the first mounting surface is connected to the opposing side end plates of the second assembly, and the second assembly has an intermediate end plate connected between the opposing end faces, the second mounting surface being connected to the intermediate end plate of the second assembly.

[0017] In this embodiment of the application, by connecting the first mounting surface to the side end plate and the second mounting surface to the middle end plate, the mounting part and the assembly beam can be connected in different directions.

[0018] In one possible implementation, a reinforcing structure is also included, which is connected to the assembly beam, and the first mounting surface and the second mounting surface are also connected to the reinforcing structure.

[0019] In this embodiment of the application, the connection strength of the towing bracket can be increased by setting a reinforcing structure.

[0020] In one possible implementation, the reinforcing structure includes a first reinforcing member and a second reinforcing member connected to each other. The first reinforcing member includes a panel with at least one connecting portion. The first mounting surface is simultaneously connected to the assembly beam and the connecting portion via a fastener. The second mounting surface is simultaneously connected to the assembly beam and the second reinforcing member via a fastener.

[0021] In this embodiment, the first mounting surface and the second mounting surface can be simultaneously connected to the assembly beam and the reinforcing structure by a single fastener, which can save on the number of structures and make the structure more compact.

[0022] In one possible implementation, the first reinforcing member further includes a first side plate connected to the panel, and the second reinforcing member includes a connecting plate and a surrounding plate, the connecting plate and the surrounding plate forming a mounting groove, the first reinforcing member being located in the mounting groove, and the first side plate being attached to the connecting plate or the surrounding plate.

[0023] In this embodiment, the first reinforcing member can be placed inside the second reinforcing member by setting a mounting groove, and the side plates of the first and second reinforcing members can be stacked together by attaching the first side plate to the connecting plate or the surrounding plate, which is beneficial to increasing the strength of the side of the reinforcing structure.

[0024] In one possible implementation, the first reinforcing member further includes a second side plate connected to the panel. The second side plate is elastically disposed such that when the first reinforcing member is located in the mounting groove, the second side plate elastically abuts against the surrounding panel or the connecting plate.

[0025] In this embodiment, by providing a second side plate that elastically abuts against the connecting plate or the surrounding plate, the connection stability between the first reinforcing member and the second reinforcing member can be increased.

[0026] In one possible implementation, the connecting plate has two spaced-apart bends that fit against the inner side of the enclosure, and there is a gap between the two bends at the same end of the two connecting plates. When the second side plate abuts against the enclosure, it is located within the gap between the two bends.

[0027] In this embodiment of the application, by providing a bending portion, there is a gap between the two bending portions that are attached to the same enclosure. During the process of accommodating the first reinforcing member in the mounting groove, the second side plate can be located in the gap between the two bending portions. At this time, the gap between the bending portions can play a positioning and guiding role to guide the second side plate to move in a predetermined direction.

[0028] In one possible implementation, a first closed cavity is formed between the first assembly and the second assembly, the reinforcing structure is located within the first closed cavity, and a second closed cavity is formed inside the reinforcing structure.

[0029] In this embodiment, by forming a first closed cavity between the first assembly and the second assembly, the assembly is made into a box-shaped structure. By forming a second closed cavity between the first reinforcing member and the second reinforcing member, the reinforcing structure is made into a box-shaped structure. Thus, the reinforcing structure and the assembly beam form a combination of two box-shaped structures. Installing the towing bracket on the two box-shaped structures is beneficial for absorbing drag force and increasing the strength of the connection.

[0030] A second aspect of this application provides a vehicle including the aforementioned rear towing device. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is an exploded view of the rear trailer provided in the embodiments of this application;

[0033] Figure 2 This is a cross-sectional view of the towing bracket provided in the embodiment of this application;

[0034] Figure 3 This is a schematic diagram of a rear towing device provided in an embodiment of this application;

[0035] Figure 4 This is another structural schematic diagram of the rear towing device provided in the embodiments of this application;

[0036] Figure 5 This is a schematic diagram of the assembly of the towing bracket and reinforcing structure provided in the embodiments of this application;

[0037] Figure 6 This is a partial structural schematic diagram of the rear trailer device provided in the embodiments of this application;

[0038] Figure 7 This is another structural diagram of the assembly of the towing bracket and reinforcing structure provided in the embodiments of this application;

[0039] Figure 8 This is another structural diagram of the assembly of the towing bracket and reinforcement structure provided in the embodiments of this application.

[0040] Figure label:

[0041] 10. Assembly beam; 11. First assembly; 12. Second assembly; 121. Side end plate; 122. Middle end plate; 123. Receiving groove; 20. Trailer bracket; 21. First mounting part; 211. First mounting surface; 212. First mounting hole; 22. Trailer part; 23. Second mounting part; 231. Second mounting surface; 232. Second mounting hole; 30. Reinforcing structure; 31. First reinforcing member; 311. Panel; 312. First side plate; 313. Second side plate; 314. Connecting part; 32. Second reinforcing member; 321. Back plate; 322. Connecting plate; 3221. Bending part; 323. Enclosure; 324. Resettling groove; 40. First fastener; 50. Second fastener. Detailed Implementation

[0042] As mentioned above, the connection strength between the tow hook and the vehicle body in the relevant technologies is not high. This easily leads to permanent or residual deformation of the tow hook during towing. The reason for the low connection strength is that some tow hooks are only connected to the vehicle body in one direction. This connection method makes the connection between the tow hook and the vehicle body unstable. When the towing force reaches a certain level, the connection between the tow hook and the vehicle body can easily loosen, causing uneven stress on the tow hook and resulting in deformation. Moreover, when the connection direction of the tow hook is unidirectional, the tow hook can only bear force in one direction, which is not conducive to the transmission of towing force and thus affects effective towing. In addition, some tow hooks use relatively complex connection structures to connect to the vehicle body in order to ensure connection strength. This not only increases the complexity of the tow hook and occupies more space, but also increases the assembly time.

[0043] Based on the above-mentioned technical problems, this application provides a rear towing device that is connected to the vehicle body in different directions, so that the rear towing device can be subjected to forces in multiple directions, which is beneficial to the transmission of towing force and increases the towing effect. Moreover, the rear towing device of this application has a simple structure, high connection strength, and is not prone to deformation.

[0044] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0045] Figure 1 This is an exploded view of the rear trailer device provided in the embodiments of this application. For ease of description, the direction shown by the Z-axis in the figure is parallel to the first direction, the direction shown by the Y-axis is parallel to the second direction, and the direction shown by the X-axis is parallel to the third direction.

[0046] Please see Figure 1 As shown, this application embodiment provides a rear towing device. The rear towing device of this application includes an assembly beam 10 and a towing bracket 20. The assembly beam 10 has multiple end faces. The assembly beam 10 is mounted on the vehicle body using a portion of its end faces. The other end face of the assembly beam 10 is used to mount the towing bracket 20. The towing bracket 20 is used to connect a traction structure (e.g., a towing rope) to realize the towing and towing of the vehicle.

[0047] Specifically, the towing bracket 20 includes a mounting part and a towing part 22 connected to the mounting part. The towing part 22 is used to connect to a towing structure such as a towing rope, and the mounting part is used to connect to the assembly beam 10 so that the position of the towing part 22 can be stabilized. The mounting part has a first mounting surface 211 and a second mounting surface 231, and a predetermined angle is provided between the first mounting surface 211 and the second mounting surface 231.

[0048] The first mounting surface 211 of this application is detachably mounted on one end face of the assembly beam 10 along the first direction, and the second mounting surface 231 is detachably mounted on the other end face of the assembly beam 10 along the second direction. The first mounting surface 211 is fixed relative to the assembly beam 10 in the first direction when mounted on the assembly beam 10, and the second mounting surface 231 is fixed relative to the assembly beam 10 in the second direction when mounted on the assembly beam 10. This fixes the towing bracket 20 relative to the assembly beam 10 in the first and second directions. It should be noted that the first and second directions are not parallel, thus fixing the towing bracket 20 relative to the assembly beam 10 in different directions.

[0049] The towing bracket 20 of this application has a towing part 22 for towing and towing, and a mounting part. The mounting part can be installed on the assembly beam 10 of a vehicle. The mounting part of this application has a first mounting surface 211 and a second mounting surface 231. It can be installed on the assembly beam 10 through these two mounting surfaces, resulting in a simple structure and convenient installation. Furthermore, the first mounting surface 211 and the second mounting surface 231 are respectively mounted on different end faces of the assembly beam 10, allowing the mounting part to be fixed in two different directions relative to the assembly beam 10. This achieves bidirectional force transmission for the mounting part, which is beneficial for the transmission of towing force and improves the effective towing of large vehicles. On the other hand, the increased number of connection points also increases the towing strength of the mounting part.

[0050] Figure 2 This is a cross-sectional view of the towing bracket provided in the embodiment of this application. Figure 3 This is a schematic diagram of a rear trailer device provided in an embodiment of this application. Figure 4 This is another structural schematic diagram of the rear towing device provided in the embodiments of this application.

[0051] See Figure 1 and Figure 2 In some feasible implementations, the mounting portion includes at least a first mounting portion 21 and a second mounting portion 23 connected together, with a first mounting surface 211 located on the first mounting portion 21 and a second mounting surface 231 located on the second mounting portion 23. The towing portion 22 and the second mounting portion 23 are spaced apart along a first direction. The second mounting portion 23 is connected to one end face of the first mounting portion 21. In this embodiment, the second mounting portion 23 is specifically mounted on the end face of the first mounting surface 211 of the first mounting portion 21. The towing portion 22 is connected to the end of the first mounting portion 21 facing away from the second mounting portion 23, and the towing portion 22 extends in a direction facing away from the second mounting portion 23, while the second mounting portion 23 extends in a direction facing away from the towing portion 22. By providing multiple mounting portions, different mounting portions can be used to connect to the assembly beam 10, ensuring the portability and stability of the connection.

[0052] For example, a second mounting portion 23 is connected to the end face of the first mounting portion 21 facing away from the towing portion 22. This end face of the first mounting portion 21 forms a first mounting surface 211, and the end face of the second mounting portion 23 facing the first mounting surface 211 is connected to the first mounting surface 211, and this end face of the second mounting portion 23 forms a second mounting surface 231. When the first mounting portion 21 and the second mounting portion 23 are connected to the assembly beam 10, the first mounting surface 211 and the second mounting surface 231 respectively fit against the outer end face of the assembly beam 10, and are then fixed to the assembly beam 10 using fasteners.

[0053] For example, a second mounting part 23 is connected to the end face of the first mounting part 21 facing away from the towing part 22. This end face of the first mounting part 21 forms a first mounting surface 211, and the end face of the second mounting part 23 facing away from the first mounting surface 211 forms a second mounting surface 231. When the first mounting part 21 and the second mounting part 23 are connected to the assembly beam 10, the first mounting surface 211 is in contact with the outer end face of the assembly beam 10, and the second mounting surface 231 is in contact with the inner end face of the assembly beam 10. Then, they are fixed to the assembly beam 10 using fasteners.

[0054] For example, the first mounting part 21 and the second mounting part 23 can be welded or detachably connected together.

[0055] For example, the first mounting part 21 and the second mounting part 23 are integrally formed.

[0056] In other possible implementations, the mounting part is a polyhedral structure, such as a hexahedral structure, and two end faces of the mounting part can serve as the first mounting surface 211 and the second mounting surface 231 for mounting the mounting part onto the assembly beam 10.

[0057] See also Figure 3 and Figure 4 In some feasible implementations, one end of the first mounting surface 211 and the second mounting surface 231 are connected together, and the angle between the first mounting surface 211 and the second mounting surface 231 can be determined by actual conditions. In some embodiments, the included angle between the first mounting surface 211 and the second mounting surface 231 satisfies the condition of being greater than 0° and less than 180°. The angle between the first mounting surface 211 and the second mounting surface 231 can be 30°, 45°, 60°, 90°, or 120°. In this application, an example of an angle of 90° between the first mounting surface 211 and the second mounting surface 231 is used for illustration.

[0058] It should be noted that in this application, the first direction, the second direction, and the third direction are perpendicular to each other. At this time, the first mounting surface 211 is parallel to the third direction and perpendicular to the first direction, and the second mounting surface 231 is parallel to the third direction and perpendicular to the second direction.

[0059] The first mounting portion 21 further includes at least one first mounting hole 212 disposed on the first mounting surface 211, and the second mounting portion 23 further includes at least one second mounting hole 232 disposed on the second mounting surface 231. The first mounting portion 21 is connected to the assembly beam 10 through the cooperation of the first fastener 40 and the first mounting hole 212, and the second mounting portion 23 is connected to the assembly beam 10 through the cooperation of the second fastener 50 and the second mounting hole 232. It should be noted that the first mounting hole 212 is opened along a first direction, and the second mounting hole 232 is opened along a second direction.

[0060] For example, the first mounting hole 212 and the second mounting hole 232 can both be screw holes, and the first fastener 40 and the second fastener 50 can be screws. Through the cooperation of the screws and the screw holes, the first mounting part 21 and the second mounting part 23 can be fixedly connected to the assembly beam 10.

[0061] For example, the first mounting hole 212 and the second mounting hole 232 can also be through holes, and the first fastener 40 and the second fastener 50 can be screws. The first fastener 40 can pass through the first mounting hole 212 and the assembly beam 10, and the second fastener 50 can pass through the second mounting hole 232 and the assembly beam 10. Nuts can also be screwed onto the first fastener 40 and the second fastener 50. The first mounting part 21 and the second mounting part 23 can be fixedly connected to the assembly beam 10 by the cooperation of the screws and nuts.

[0062] For example, the first mounting part 21 is provided with a plurality of first mounting holes 212, and the second mounting part 23 is provided with a plurality of second mounting holes 232.

[0063] For example, the first mounting part 21 is provided with two spaced first mounting holes 212, and the second mounting part 23 is provided with two spaced second mounting holes 232.

[0064] For example, the two first mounting holes 212 and the two second mounting holes 232 are arranged along a third direction.

[0065] In some feasible embodiments, in order to save materials, the first mounting part 21 is also provided with a through groove (not shown in the figure) extending from one end of the first mounting surface 211 in a direction perpendicular to the first mounting surface 211. The through groove divides the first mounting part 21 into two sub-parts spaced apart along a third direction, and each sub-part is provided with a first mounting hole 212.

[0066] For example, the towing part 22 has a curved structure. One end of the towing part 22 is connected to one of the sub-parts of the first mounting part 21, and the other end is connected to another sub-part of the first mounting part 21. The end of the first mounting part 21 used to connect with the towing part 22 gradually decreases in size from the end near the first mounting surface 211 to the end away from the first mounting surface 211, so that the end of the first mounting part 21 and the towing part 22 connected is arranged in an inverted triangle. This can increase the strength of the connection between the towing part 22 and the first mounting part 21.

[0067] In some possible implementations, the assembly beam 10 includes a first assembly 11 and a second assembly 12 connected together, with the towing bracket 20 connected to the second assembly 12.

[0068] For example, the first assembly 11 and the second assembly 12 can be detachably connected together by means of snap-fit ​​structures, fastening structures, screws, etc.

[0069] For example, the first assembly 11 and the second assembly 12 are connected together by welding.

[0070] In some possible implementations, the second assembly 12 has two opposing side end plates 121 spaced apart, and a first mounting surface 211 is connected to the side end plates 121 of the second assembly 12. An intermediate end plate 122 is also connected between the opposing side end plates 121 of the second assembly 12, and a second mounting surface 231 is connected to the intermediate end plate 122 of the second assembly 12.

[0071] Specifically, the two side end plates 121 and the middle end plate 122 are integrally formed, and the two side end plates 121 are located on the same side of the middle end plate 122. When installing the tow bracket 20, the first mounting surface 211 can be attached to the outer wall of one of the side end plates 121 (here, the outer wall refers to the end face facing away from the other side end plate 121), and the second mounting end can be attached to the outer wall of the middle end plate 122 (here, the outer wall refers to the end face facing away from the side end plate 121). Then, the first mounting part 21 and the second mounting part 23 are respectively connected to the side end plate 121 and the middle end plate 122 by the first fixing member 40 and the second fixing member 50.

[0072] For example, the first fastener 40 can pass through the two side end plates 121 along the first direction and then be connected to the first mounting surface 211.

[0073] For example, the edge of the first assembly 11 is bent, and the bent edge of the first assembly 11 can fit onto the side end plate 121, and then the edge of the first assembly 11 is connected to the side end plate 121 by welding.

[0074] By setting the assembly beam 10 as a combination of the first assembly 11 and the second assembly 12, the first assembly 11 and the second assembly 12 are connected together, and a cavity is formed between the two assemblies. The assembly beam 10 formed by connecting the first assembly 11 and the second assembly 12 is a closed box structure with a cavity. While saving materials, the connection strength between the towing bracket 20 and the assembly beam 10 can be guaranteed.

[0075] Figure 5 This is a schematic diagram of the assembly of the towing bracket and reinforcing structure provided in the embodiments of this application. Figure 6 This is a partial structural schematic diagram of the rear trailer device provided in an embodiment of this application. Figure 7 This is another structural diagram illustrating the assembly of the towing bracket and reinforcing structure provided in this application embodiment. Figure 8 This is another structural diagram of the assembly of the towing bracket and reinforcement structure provided in the embodiments of this application.

[0076] See Figures 5 to 8 In some feasible embodiments, the rear trailer also includes a reinforcing structure 30 connected to the assembly beam 10. The first mounting surface 211 and the second mounting surface 231 are connected to the assembly beam 10 and also to the reinforcing structure 30. The reinforcing structure 30 is used to increase the installation strength of the trailer support 20.

[0077] Specifically, a receiving groove 123 is formed between the side end plate 121 and the middle end plate 122 of the second assembly 12. When the first assembly 11 and the second assembly 12 are connected, the receiving groove 123 is covered by the first assembly 11, thereby forming a first closed cavity between the first assembly 11 and the second assembly 12. The reinforcing structure 30 is located in the first closed cavity. The reinforcing structure 30 includes a first reinforcing member 31 and a second reinforcing member 32 connected together, and a second closed cavity is formed between the first reinforcing member 31 and the second reinforcing member 32.

[0078] Thus, the assembly beam 10 is configured as a closed box structure, and the reinforcing structure 30 inside the assembly beam 10 is also configured as a closed box structure. The towing bracket 20 is connected to both the assembly beam 10 and the reinforcing structure 30. The double closed box structure can ensure the strength and rigidity of the connection between the towing bracket 20 and the assembly beam 10.

[0079] In some possible implementations, when the first mounting part 21 is connected to the two side end plates 121 by the first fastener 40, the first fastener 40 is also used to connect the first mounting part 21 and the reinforcing structure 30 together; when the second mounting part 23 is connected to the middle end plate 122 by the second fastener 50, the second fastener 50 is also used to connect the second mounting part 23 and the reinforcing structure 30 together.

[0080] Specifically, the first reinforcing member 31 includes a panel 311, which can be connected to the second reinforcing member 32. The panel 311 has at least one connecting portion 314 extending along a first direction. The reinforcing structure 30 is located within the receiving groove 123 of the second assembly 12, sandwiched between two side end plates 121. The two ends of the connecting portion 314 in its extending direction are respectively positioned opposite the two side end plates 121. The first fixing member 40 can sequentially pass through the side end plate 121, the connecting portion 314, and the side end plate 121 along the first direction and connect to the first mounting portion 21. Thus, the first mounting surface 211 of the first mounting portion 21 can be simultaneously connected to the assembly beam 10 and the connecting portion 314 via the first fixing member 40, increasing the connection strength and rigidity. The second mounting surface 231 is simultaneously connected to the assembly beam 10 and the second reinforcing member 32 via the fixing member.

[0081] For example, the connecting part 314 is a cylindrical rod structure, and the connecting part 314 has a through channel extending through it along its extension direction, and the inner wall of the through channel is smoothly provided.

[0082] For example, the connecting part 314 is a threaded sleeve structure, and the first fixing member 40 can be threadedly connected to the connecting part 314 when it is a screw.

[0083] In some possible implementations, the second reinforcing member 32 includes a back plate 321, a connecting plate 322 and a surrounding plate 323 disposed opposite to each other. The connecting plate 322 is disposed opposite to two opposite sections of the back plate 321, and the surrounding plates 323 are disposed at the other opposite ends of the back plate 321. The connecting plate 322 and the surrounding plates 323 are both located on the same side of the back plate 321. The back plate 321, the connecting plate 322 and the surrounding plates 323 form a mounting groove 324, in which the first reinforcing member 31 is located. However, when the first reinforcing member 31 is connected to the first mounting part 21, the second mounting member can pass through the back plate 321 of the second compensating member and the intermediate end plate 122 of the second assembly 12 and connect to the second mounting part 23, so that the back plate 321, the intermediate end plate 122 and the second mounting part 23 are mounted together.

[0084] It should be noted that the first reinforcing member 31 also includes a first side plate 312 connected to opposite ends of the panel 311, and a second side plate 313 connected to the other opposite ends of the panel 311. The first side plate 312 and the second side plate 313 are located on the same side of the panel 311, and the second side plate 313 is elastically disposed. When the first reinforcing member 31 is located in the mounting groove 324 of the second reinforcing member 32, the first side plate 312 is attached to the connecting plate 322, the second side plate 313 is attached to the surrounding plate 323, and the connecting part 314 can abut against the back plate 321. Thus, the connecting plate 322 is sandwiched between the side end plate 121 and the first side plate 312. After passing through the side end plate 121, the first fixing member 40 also needs to pass through a connecting plate 322 before it can be inserted into the connecting part 314. Therefore, a through hole needs to be made on the connecting plate 322 at the position corresponding to the connecting part 314 so that the first fixing member 40 can pass through.

[0085] It is worth mentioning that, since the second side plate 313 is an elastic plate, the distance between the two second side plates 313 can be set to be greater than the distance between the two surrounding plates 323. In this way, when the first reinforcing member 31 is placed in the mounting groove 324, the second side plate 313 deforms under the pressure of the two surrounding plates 323, so that the first reinforcing member 31 can smoothly enter the mounting groove 324. After the second side plate 313 deforms, it will generate an elastic force towards the surrounding plate 323. The second side plate 313 presses the surrounding plate 323 towards the surrounding plate 323, which increases the friction between the second side plate 313 and the surrounding plate 323, thereby helping to stabilize the first reinforcing member 31 in the mounting groove 324.

[0086] In this embodiment, both the first reinforcing member 31 and the second reinforcing member 32 are made of high-strength steel. When assembling the entire rear trailer, firstly, the back plate 321 of the second reinforcing member 32 is welded to the middle end plate 122 of the second assembly 12. Note that the holes on the back plate 321 and the middle end plate 122 for the second fixing member 50 are aligned. Then, a nut is welded to the position corresponding to the hole on the back plate 321. This nut is used for threaded connection with the second fixing member 50. After completing the above operations, the connecting part 314 is welded to the panel 311 of the first reinforcing member 31 along the first direction. The connecting part 314 is positioned with its back to the first side plate 312 and the second side plate 313. The first reinforcing member 31 is placed in the mounting groove 324. Then, spot welding is performed between the first side plate 312 and the connecting plate 322, and between the second side plate 313 and the surrounding plate 323 to weld the first reinforcing member 31 and the second reinforcing member 32 together. Finally, the first assembly 11 and the second assembly 12 are welded together to form the assembly structure of the assembly beam 10 and the reinforcing structure 30.

[0087] It should be noted that the reinforcing structure 30 can also be assembled first and then assembled into the second assembly 12 as a whole.

[0088] In some feasible embodiments, the connecting plate 322 also has spaced-apart bent portions 3221 at its ends near the two surrounding plates 323. These bent portions 3221 are located on the same side of the connecting plate 322 and bend towards the surrounding plate 323. The bent portions 3221 are fitted against the inner side of the surrounding plate 323. The bent portions 3221 of the two connecting plates 322 are spaced apart on the same surrounding plate 323, and the gap between the two bent portions 3221 forms a guide channel. During the process of the first reinforcing member 31 entering the mounting groove 324, the second side plate 313, when fitted against the surrounding plate 323, can fit within the gap between the two bent portions 3221. The guide channel between the bent portions 3221 can provide guidance and restraint for the movement of the second side plate 313.

[0089] Secondly, embodiments of this application also provide a vehicle including the aforementioned rear towing device.

[0090] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 this application.

[0091] In the description of this application, it should be understood that the terms "comprising" and "having" and any variations thereof used in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0092] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., 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 direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rear hitching arrangement, characterized in that The application relates to a beam assembly and a trailer support. The beam assembly comprises a beam assembly body and a trailer support. The trailer support comprises a mounting part and a trailer part connected to the mounting part. The mounting part comprises a first mounting surface and a second mounting surface.

2. The rear trailer device according to claim 1, characterized in that The first mounting surface is connected to one end surface of the beam assembly body in a first direction.

3. The rear trailer device according to claim 2, characterized in that The second mounting surface is connected to the other end surface of the beam assembly body in a second direction.

4. The rear trailer device according to claim 2, characterized in that The first direction and the second direction are not parallel.

5. The rear trailer device according to claim 1, characterized in that The mounting part comprises a first mounting part and a second mounting part.

6. A rear trailer device according to claim 5, characterised in that The second mounting part is connected to one end of the first mounting part.

7. The rear trailer device according to claim 5, characterized in that The trailer part is connected to the other end of the first mounting part.

8. A rear trailer device according to claim 7, characterised in that The first mounting surface is located on the first mounting part.

9. A rear trailer device according to claim 8, characterised in that The second mounting surface is located on the second mounting part.

10. A rear trailer device according to claim 9, characterised in that The first mounting surface and the second mounting surface are connected at one end. The angle between the first mounting surface and the second mounting surface is greater than 0 degrees and less than 180 degrees. The first mounting part further comprises at least one first mounting hole arranged on the first mounting surface. The second mounting part further comprises at least one second mounting hole arranged on the second mounting surface. The first mounting part is connected to the beam assembly body through the cooperation of the first mounting hole and a first fixing member. The second mounting part is connected to the beam assembly body through the cooperation of the second mounting hole and a second fixing member. The beam assembly body comprises a first assembly body and a second assembly body. The first assembly body and the second assembly body are connected. The trailer support is connected to the second assembly body. The second assembly body comprises two oppositely arranged side end plates. The first mounting surface is connected to the side end plate of the second assembly body. The second assembly body is connected with an intermediate end plate between the oppositely arranged end surfaces. The second mounting surface is connected to the intermediate end plate of the second assembly body. The beam assembly further comprises a reinforcing structure. The reinforcing structure is connected to the beam assembly body. The first mounting surface and the second mounting surface are further connected to the reinforcing structure. The reinforcing structure comprises a first reinforcing member and a second reinforcing member connected to each other. The first reinforcing member comprises a panel. At least one connecting part is arranged on the panel. The first mounting surface is connected to the beam assembly body and the connecting part through a fixing member. The second mounting surface is connected to the beam assembly body and the second reinforcing member through a fixing member. The first reinforcing member further comprises a first side plate connected to the panel. The second reinforcing member comprises a connecting plate and an enclosing plate. The first reinforcing member is located in the accommodating groove. The first side plate is attached to the connecting plate or the enclosing plate. The first reinforcing member further comprises a second side plate connected to the panel. The second side plate is elastically arranged. When the first reinforcing member is located in the accommodating groove, the second side plate elastically abuts against the enclosing plate or the connecting plate.

11. A rear trailer device according to claim 10, characterised in that The connecting plate has two spaced-apart bending portions which are attached to the inner side of the enclosing plate, and the two connecting plates have a gap between the two bending portions at the same end, and the second side plate is located in the gap between the two bending portions when abutting against the enclosing plate.

12. A rear trailer device according to any one of claims 7-11, characterised in that A first closed cavity is formed between the first assembly and the second assembly, and the reinforcing structure is located in the first closed cavity, and a second closed cavity is formed inside the reinforcing structure.

13. A vehicle characterized by comprising: The rear trailer device comprises the rear trailer device according to any one of claims 1-11.

Images