Connection structure and vehicle

Abstract

The application relates to the technical field of a vehicle body, and provides a connecting structure and a vehicle. The connecting structure is suitable for connecting a trailer structure on a vehicle body, and comprises connecting seats arranged on left and right sides and a connecting beam connected between the two connecting seats. The connecting beam is used for connecting the trailer structure, the connecting seat comprises a connecting plate, a plurality of transverse reinforcing plates arranged side by side and a plurality of longitudinal reinforcing plates arranged side by side which are connected to the connecting plate, the connecting plate is used for connecting the vehicle body, each transverse reinforcing plate and each longitudinal reinforcing plate are connected together in a transverse and longitudinal interlaced mode, and the end of the connecting beam penetrates through each longitudinal reinforcing plate and is connected together with each longitudinal reinforcing plate. The application can increase the structural strength of the connecting seat, and is favorable for guaranteeing the reliability of the connection of the trailer structure on the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle body technology, and in particular to a connection structure and a vehicle. Background Technology

[0002] Trailer structures are typically located at the rear of a vehicle and are primarily used to extend the vehicle's carrying capacity to meet the towing needs of RVs, luggage racks, bicycle racks, and small trucks.

[0003] Currently, trailer structures are generally connected to the vehicle body via connecting brackets on both sides and a crossbeam in the middle. Because the stress point of the trailer structure is located in the middle of the crossbeam, the cantilever structure formed on both sides of the stress point is quite long. Under towing conditions, the connecting brackets on both sides are prone to deformation and cracking due to the large stress, which is detrimental to ensuring the reliability of the trailer structure connection to the vehicle. Utility Model Content

[0004] In view of this, this application aims to propose a connection structure to facilitate the reliability of the trailer structure connection on the vehicle.

[0005] To achieve the above objectives, the technical solution of this application is implemented as follows: A connection structure suitable for connecting a trailer structure to a vehicle body includes connection seats disposed on the left and right sides, and a connection beam connecting the connection seats on both sides. The connecting beam is used to connect the trailer structure, and the connecting seat includes a connecting plate, and a plurality of transverse reinforcing plates arranged side by side and a plurality of longitudinal reinforcing plates arranged side by side connected to the connecting plate. The connecting plate is used to connect the vehicle body. The transverse reinforcing plates and the longitudinal reinforcing plates are connected together in a cross-shaped manner. The end of the connecting beam passes through the longitudinal reinforcing plates and is connected to them.

[0006] Furthermore, the plurality of transverse reinforcing plates include a first transverse reinforcing plate and a second transverse reinforcing plate, and the plurality of longitudinal reinforcing plates include a first longitudinal reinforcing plate and a second longitudinal reinforcing plate; The first transverse reinforcing plate and the second transverse reinforcing plate are located on one side of the first longitudinal reinforcing plate, and the second longitudinal reinforcing plate is located between the first transverse reinforcing plate and the second transverse reinforcing plate.

[0007] Furthermore, the first longitudinal reinforcing plate is located on the side closest to the connecting plate, and the first longitudinal reinforcing plate and the connecting plate are integrally connected in an "L" shape; and / or, The distance between the first longitudinal reinforcing plate and the second longitudinal reinforcing plate is not less than 30mm.

[0008] Furthermore, the vehicle body connection points on the connecting plate are arranged in two groups at longitudinal intervals, and the vehicle body connection points in each group are multiple points arranged sequentially in the horizontal direction. The first or second transverse reinforcing plate is located between the two sets of vehicle body connection points.

[0009] Furthermore, the connecting plate is provided with a connecting through hole, and the connecting plate can be detachably connected to the vehicle body via a connector passing through the connecting through hole; and / or, At least one of the first transverse reinforcing plate and the second transverse reinforcing plate is trapezoidal.

[0010] Furthermore, the connecting beam is a tubular beam.

[0011] Furthermore, the cross-section of the connecting beam is square; and / or, At least one of the longitudinal reinforcing plates is provided with a connecting flange arranged circumferentially along the connecting beam, and the connecting flange is connected to the connecting beam.

[0012] Compared with related technologies, this application has the following advantages: (1) The connection structure described in this application provides multiple horizontal reinforcing plates and multiple vertical reinforcing plates arranged in parallel in the connecting seat, and also connects the horizontal and vertical reinforcing plates together in a cross-shaped manner. The end of the connecting beam passes through each vertical reinforcing plate and is connected to each vertical reinforcing plate. This not only increases the structural strength of the connecting seat itself by using the horizontal and vertical reinforcing plates that are connected in a cross-shaped manner, but also increases the connection strength between the connecting beam and the connecting seat by using the connecting beam that passes through each vertical reinforcing plate. This helps to ensure the reliability of the trailer structure connection on the vehicle.

[0013] (2) The transverse reinforcing plate includes a first transverse reinforcing plate and a second transverse reinforcing plate, and the longitudinal reinforcing plate includes a first longitudinal reinforcing plate and a second longitudinal reinforcing plate, such that the first transverse reinforcing plate and the second transverse reinforcing plate are located on one side of the first longitudinal reinforcing plate, and the second longitudinal reinforcing plate is located between the first transverse reinforcing plate and the second transverse reinforcing plate. This can achieve transverse and longitudinal interlacing connection between each transverse reinforcing plate and the longitudinal reinforcing plate to increase the structural strength of the connecting seat. It is not only conducive to the reasonable setting of the number of transverse and longitudinal reinforcing plates, as well as the reasonable arrangement of the connection positions of transverse and longitudinal reinforcing plates on the connecting plate, but also helps to reduce the space occupation of the connecting seat and facilitates the connection arrangement of the connecting structure on the vehicle body.

[0014] (3) The first longitudinal reinforcing plate is close to the side of the connecting plate, and the first longitudinal reinforcing plate and the connecting plate are connected in an "L" shape. This can ensure the connection stability between the first longitudinal reinforcing plate and the connecting plate, and also eliminate the connection processing steps between the first longitudinal reinforcing plate and the connecting plate, which helps to reduce the manufacturing cost of the connecting seat.

[0015] The spacing between the first longitudinal stiffening plate and the second longitudinal stiffening plate is not less than 30mm, which can achieve appropriate dispersion of the connection points between the connecting beam and the connecting seat. Compared with the form where the connection points between the connecting beam and the connecting seat are more concentrated, it helps to increase the reliability of the connection between each longitudinal stiffening plate and the connecting beam, and is conducive to improving the connection strength between the connecting beam and the connecting seat.

[0016] (4) The body connection points on the connecting plate are arranged in two sets with longitudinal spacing, and the first or second transverse reinforcing plate is located between the two sets of body connection points on the connecting plate. This allows the transverse reinforcing plate located between the two sets of body connection points to serve as a central reinforcing structure, which strengthens the weak central area of ​​the connecting plate and improves the deformation resistance of the connecting plate under stress.

[0017] (5) A connection through hole is provided on the connecting plate, and the connecting plate can be detachably connected to the vehicle body through the connectors passing through the connection through hole. The structure is simple, which is conducive to design, manufacturing and connection between the connecting plate and the vehicle body. It also helps to achieve selective setting of the connection structure on the vehicle body and can improve the practicality of the connection structure.

[0018] The first and second transverse reinforcing plates are trapezoidal, which not only utilizes the high strength of the trapezoidal structure to ensure the structural strength of the transverse reinforcing plates themselves and to ensure the improvement of the structural strength of the connecting seat, but also helps to reduce the space occupied by the transverse reinforcing plates and facilitates the connection arrangement of the connecting seat on the vehicle body.

[0019] (6) The connecting beam is a tubular beam, which has a simple structure and is easy to manufacture. It can also take advantage of the high structural strength of the tubular beam to ensure the structural strength of the connecting beam itself, which helps to further improve the reliability of the trailer structure connection on the vehicle.

[0020] (7) The cross-section of the connecting beam is square. The square cross-section design of the connecting beam can play a better anti-rotation effect when the connecting beam is under stress. It can effectively prevent the trailer structure from twisting relative to the connecting beam and the connecting beam from the connecting seat. This allows the drag force from the trailer structure to be effectively transmitted to the connecting seat through the connecting beam, which helps to improve the stability of the connecting structure.

[0021] By setting connecting flanges along the circumference of the connecting beam on the longitudinal stiffening plate and connecting the connecting flanges to the connecting beam, the structural strength of the connecting beam connection position on the longitudinal stiffening plate can be increased. At the same time, the connection strength between the longitudinal stiffening plate and the connecting beam can also be increased, which is beneficial to improving the stability of the connection between the connecting beam and the connecting seat.

[0022] Another object of this application is to provide a vehicle having the connection structure described above on its body.

[0023] Furthermore, the connecting plates in the connecting seats on each side are connected to the ends of the longitudinal beams of the vehicle body on the same side; The vehicle body longitudinal beam is provided with a connecting component, which is connected to the corner position inside the vehicle body longitudinal beam, and the connecting plate is connected to the connecting component.

[0024] Furthermore, the connection assembly includes a connection bracket and a connection sleeve; The connecting sleeve is fixed to the corner position inside the longitudinal beam of the vehicle body via the connecting bracket, and the connecting plate is connected to the connecting sleeve.

[0025] The vehicle described in this application, by providing the connection structure as described above on the vehicle body, can ensure the reliability of the trailer structure connection on the vehicle by increasing the structural strength of each component in the connection structure and the connection strength between the components, which helps to improve the quality of use when the vehicle is equipped with a trailer structure.

[0026] Furthermore, by connecting the connecting plate in the connecting seat to the end of the vehicle body longitudinal beam, and by setting a connecting component at the inner corner of the vehicle body longitudinal beam, and connecting the connecting plate to the connecting component, the high structural strength of the corner of the vehicle body longitudinal beam can be utilized to increase the stability of the connecting component on the vehicle body longitudinal beam, and improve the ability of the connecting component to transmit the towing force in the vehicle body longitudinal beam. This helps to improve the stability of the trailer structure on the vehicle and improve the towing performance of the trailer structure.

[0027] In addition, the connecting assembly includes a connecting bracket and a connecting sleeve fixed to the inner corner of the body longitudinal beam via the connecting bracket. This not only utilizes the larger axial dimension of the connecting sleeve compared to the conventional nut structure to ensure the connection strength between the connecting seat and the connecting assembly, but also avoids problems such as easy deformation and cracking at the connection position due to the small stress point at the connection position on the body longitudinal beam. At the same time, the connecting bracket also facilitates the connection and installation of the connecting sleeve within the body longitudinal beam, and ensures the reliability of the connection arrangement of the connecting sleeve at the inner corner of the body longitudinal beam. Attached Figure Description

[0028] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the trailer structure described in this application being connected to the vehicle body. Figure 2 This is a schematic diagram of the connection structure described in the embodiments of this application; Figure 3 This is a schematic diagram of the connector structure described in the embodiment of this application; Figure 4 This is a schematic diagram of the connector described in an embodiment of this application from another perspective; Figure 5 for Figure 1 A schematic diagram of the middle section structure; Figure 6 This is a schematic diagram of the structure of the vehicle body longitudinal beam described in the embodiments of this application; Figure 7 for Figure 6 Enlarged view of section A; Figure 8 This is a schematic diagram of the structure of the connection component described in an embodiment of this application; Figure 9 This is a schematic diagram of the connecting bracket described in an embodiment of this application; Explanation of reference numerals in the attached figures: 1. Vehicle body longitudinal beams; 2. Trailer structure; 3. Connecting seat; 4. Connecting beam; 5. Connecting parts; 6. Longitudinal beam end plates; 7. Connecting components; 31. Connecting plate; 32. Transverse reinforcing plate; 33. Longitudinal reinforcing plate; 34. Connecting through hole; 71. Connecting bracket; 72. Connecting sleeve; 321. First transverse reinforcing plate; 322. Second transverse reinforcing plate; 331. First longitudinal reinforcing plate; 332. Second longitudinal reinforcing plate; 33a. Connecting flange; 721. Support body; 722. Support flange; 721a. Groove. Detailed Implementation

[0029] To make the technical solution and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0031] Furthermore, it should be noted that in the description of this application, if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, these are 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 on this application. In addition, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] Furthermore, in the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "joining," and "connector" 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application in light of the specific circumstances.

[0033] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] An embodiment of the first aspect of this application provides a connection structure suitable for connecting a trailer structure 2 to a vehicle body. The connection structure of this embodiment, through its innovative structural design, can increase the structural strength of the connection structure itself, which is beneficial to ensuring the reliability of the connection of the trailer structure 2 to the vehicle.

[0036] In related technologies, for vehicles equipped with a trailer structure 2, the trailer structure 2 is generally connected to the vehicle body via connecting brackets on both sides and a crossbeam in the middle. The connecting brackets on both sides are typically connected to the longitudinal beams 1 of the vehicle body, while the trailer structure 2 is connected to the crossbeam and located in the middle of the crossbeam.

[0037] At this point, because the stress point of the trailer structure 2 is located in the middle of the crossbeam, the length of the cantilever structure formed on both sides of the stress point is relatively large. Under towing conditions, the connecting brackets on both sides are prone to deformation and cracking due to the large stress. Once the connecting brackets deform or crack, the connection between the trailer structure 2 and the vehicle body longitudinal beam 1 may fail, causing the trailer structure 2 to fall off, which is detrimental to ensuring the reliability of the trailer structure 2 installed on the vehicle.

[0038] In view of this, in order to overcome the shortcomings of related technologies, the connection structure in this embodiment combines... Figures 1 to 4 As shown, the overall design includes connecting seats 3 located on the left and right sides, and connecting beams 4 connecting the connecting seats 3 on both sides.

[0039] The connecting beam 4 is used to connect the trailer structure 2, and the connecting seat 3 also includes a connecting plate 31, as well as a plurality of transverse reinforcing plates 32 and a plurality of longitudinal reinforcing plates 33 arranged side by side connected to the connecting plate 31.

[0040] The connecting plate 31 is used to connect the vehicle body, and the transverse reinforcing plates 32 and the longitudinal reinforcing plates 33 are connected together in a cross-shaped manner. The end of the connecting beam 4 passes through the longitudinal reinforcing plates 33 and is connected to the longitudinal reinforcing plates 33.

[0041] Therefore, with the above configuration, by arranging multiple horizontal reinforcing plates 32 and multiple vertical reinforcing plates 33 side by side in the connecting seat 3, the horizontal reinforcing plates 32 and the vertical reinforcing plates 33 are connected together in a cross-shaped manner. At the same time, the end of the connecting beam 4 also passes through each vertical reinforcing plate 33 and is connected to each vertical reinforcing plate 33. In this embodiment, the structural strength of the connecting seat 3 itself can be increased by using the horizontally and vertically connected horizontal reinforcing plates 32 and vertical reinforcing plates 33, and the connection strength between the connecting beam 4 and the connecting seat 3 can be increased by using the connecting beam 4 to pass through each vertical reinforcing plate 33. Thus, the reliability of the trailer structure connection on the vehicle can be guaranteed.

[0042] Based on the above overview, specifically, it is worth noting that, as before... Figure 1 As shown, the connection structure of this embodiment can also be connected to the longitudinal beam 1 of the vehicle body, and since the trailer structure 2 is generally located at the rear of the vehicle, the aforementioned longitudinal beam 1 can specifically be the rear floor longitudinal beam at the rear of the vehicle body.

[0043] Furthermore, the trailer structure 2 in this embodiment is also commonly referred to as a trailer hook. In specific implementation, the trailer structure 2 can adopt a suitable trailer hook structure that meets the relevant towing requirements. There are no restrictions on this, and the trailer structure 2 can be connected to the connecting beam 4 through a conventional connection method.

[0044] In this embodiment, we continue to combine Figures 1 to 4 As shown, in some exemplary embodiments, the plurality of transverse reinforcing plates 32 may include, for example, a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, and the plurality of longitudinal reinforcing plates 33 may include, for example, a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332.

[0045] Furthermore, the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 are located on one side of the first longitudinal reinforcing plate 331, and the second longitudinal reinforcing plate 332 is also specifically located between the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322.

[0046] In this way, the transverse reinforcing plate 32 includes a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, and the longitudinal reinforcing plate 33 includes a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332. The first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 are located on one side of the first longitudinal reinforcing plate 331, while the second longitudinal reinforcing plate 332 is located between the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322. It can be understood that this embodiment can achieve a transverse and longitudinal interlaced connection between each transverse reinforcing plate 32 and the longitudinal reinforcing plate 33 to increase the structural strength of the connecting seat 3. It is not only conducive to the reasonable setting of the number of transverse reinforcing plates 32 and the longitudinal reinforcing plates 33, as well as the reasonable arrangement of the connection positions of the transverse reinforcing plates 32 and the longitudinal reinforcing plates 33 on the connecting plate 31, but also helps to reduce the space occupied by the connecting seat 3, and facilitates the connection arrangement of the connecting structure on the vehicle body.

[0047] In specific implementation, the transverse reinforcing plate 32 includes a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, while the longitudinal reinforcing plate 33 includes a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332, as follows. Figure 3 and Figure 4 As shown, in some exemplary embodiments, this embodiment may, for example, make the first longitudinal reinforcing plate 331 close to the side of the connecting plate 31, and also make the first longitudinal reinforcing plate 331 and the connecting plate 31 integrally connected in an "L" shape.

[0048] Therefore, by placing the first longitudinal reinforcing plate 33 close to the side of the connecting plate 31 and making the first longitudinal reinforcing plate 33 and the connecting plate 31 integrally connected in an "L" shape, the connection stability between the first longitudinal reinforcing plate 33 and the connecting plate 31 can be guaranteed. At the same time, it can be understood that compared with the method of making the first longitudinal reinforcing plate 33 and the connecting plate 31 separately and then connecting them together, so that the first longitudinal reinforcing plate 33 and the connecting plate 31 form an integral structure, the connection processing steps of the first longitudinal reinforcing plate 33 and the connecting plate 31 can be eliminated, which helps to reduce the manufacturing cost of the connecting seat 3.

[0049] In this embodiment, the transverse reinforcing plate 32 includes a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, and the longitudinal reinforcing plate 33 includes a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332. Also, given that the end of the connecting beam 4 is provided through the first longitudinal reinforcing plate 331 and the second longitudinal reinforcing plate 332, in some exemplary embodiments, the distance between the first longitudinal reinforcing plate 331 and the second longitudinal reinforcing plate 332 may be set to be not less than 30 mm.

[0050] At this point, the distance between the two longitudinal reinforcing plates 33 is also the distance between the two longitudinal reinforcing plates 33 in the direction of arrangement of the transverse reinforcing plates 32 (i.e., transverse). Furthermore, it can be understood that by ensuring the distance between the first longitudinal reinforcing plate 33 and the second longitudinal reinforcing plate 33 is not less than 30mm, this embodiment can achieve a proper dispersion of the connection points between the connecting beam 4 and the connecting seat 3. Compared to a smaller distance between the two longitudinal reinforcing plates 33, this results in a more concentrated connection point between the connecting beam 4 and the connecting seat 3. By controlling the distance between the two longitudinal reinforcing plates 33, it helps to increase the reliability of the connection between each longitudinal reinforcing plate 33 and the connecting beam 4, thereby also improving the connection strength between the connecting beam 4 and the connecting seat 3.

[0051] In specific implementation, it is worth noting that the spacing between the two longitudinal reinforcing plates 33 can be, for example, 30mm, 35mm, 40mm, 45mm or 50mm. Those skilled in the art can choose according to the actual design situation, as long as it meets the above spacing requirements and helps to ensure the connection strength between the connecting beam 4 and the connecting seat 3.

[0052] In this embodiment, taking the transverse reinforcing plate 32 comprising a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, and the longitudinal reinforcing plate 33 comprising a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332 as an example, in some exemplary embodiments, the vehicle body connection points on the connecting plate 31 may be two sets arranged longitudinally at intervals, wherein the vehicle body connection points in each set are multiple sets arranged transversely in sequence, and the first transverse reinforcing plate 321 is located between the two sets of vehicle body connection points.

[0053] Specifically, taking the connection between the connecting seat 3 and the longitudinal beam 1 in the vehicle body as an example, the aforementioned vehicle body connection point is also the relevant structure on the connecting plate 31 used to connect the longitudinal beam 1, and referring to... Figures 1 to 4 As shown, the aforementioned vehicle body connection point can be a connection through hole 34 provided on the connection plate 31, and the connection plate 31 can be connected to the vehicle body longitudinal beam 1 through a connector 5 passing through the connection through hole 34.

[0054] It should be noted that, in addition to the connection through hole 34 which can be set on the connecting plate 31, the above-mentioned vehicle body connection point can also be other structures set on the connecting plate 31, as long as they can realize the connection between the connecting plate 31 and the vehicle body longitudinal beam 1, and there is no limitation on this.

[0055] By setting the body connection points on the connecting plate 31 into two sets arranged longitudinally and making the first transverse reinforcing plate located between the two sets of body connection points on the connecting plate 31, it can be understood that this embodiment enables the transverse reinforcing plate 32 located between the two sets of body connection points to serve as a central reinforcing structure, which can strengthen the weak central area of ​​the connecting plate 31 and improve the deformation resistance of the connecting plate 31 under stress.

[0056] In practical implementation, it is worth noting that, in addition to, Figures 1 to 4 As shown, the first transverse reinforcing plate is positioned between the two sets of body connection points on the connecting plate 31. Of course, in other feasible embodiments, the second transverse reinforcing plate can also be positioned between the two sets of body connection points on the connecting plate 31 by adjusting the position of the body connection points on the connecting plate 31.

[0057] In some exemplary embodiments of this embodiment, as described above, a connection through hole 34 may be provided on the connecting plate 31, and the connecting plate 31 may be detachably connected to the vehicle body longitudinal beam 1 by means of a connector 5 passing through the connection through hole 34.

[0058] Therefore, by providing a connection through hole 34 on the connecting plate 31, and allowing the connecting plate 31 to be detachably connected to the vehicle body via the connector 5 passing through the connection through hole 34, it not only has the advantages of simple structure, easy design and manufacturing, and easy connection between the connecting plate 31 and the vehicle body, but also obviously helps to achieve selective installation of the connection structure on the vehicle body to realize the optional installation of the trailer structure 2, thereby improving the practicality of the connection structure.

[0059] In specific implementation, it is worth noting that, as mentioned above, the connecting vias 34 on the connecting plate 31 can be, for example, two sets arranged longitudinally at intervals, and each set of connecting vias 34 can also be multiple sets arranged horizontally in sequence.

[0060] Furthermore, the aforementioned connector 5 can be, for example, a bolt, to mate with a matching structure located at the end of the vehicle body longitudinal beam 1, thereby achieving the connection of the connector 3 at the end of the vehicle body longitudinal beam 1. The aforementioned matching structure can be, for example, a nut or similar structure fixed to the end of the vehicle body longitudinal beam 1.

[0061] In this embodiment, the example continues to be taken with the transverse reinforcing plate 32 comprising a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322. In some exemplary embodiments, combined with Figure 3 and Figure 4 As shown, for example, the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 can both be trapezoidal.

[0062] At this time, by making the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 trapezoidal, it is possible not only to take advantage of the high strength of the trapezoidal structure to ensure the structural strength of each transverse reinforcing plate 32 and to ensure the improvement effect on the structural strength of the connecting seat 3, but also to reduce the space occupied by each transverse reinforcing plate 32, which is beneficial to the connection arrangement of the connecting seat 3 on the vehicle body.

[0063] In specific implementation, for each trapezoidal transverse reinforcing plate 32, preferably, for example, each transverse reinforcing plate 32 can be made as follows: Figure 3 and Figure 4 The structure shown is a right-angled trapezoid, which allows the side of each transverse reinforcing plate 32 closest to the first longitudinal reinforcing plate 331 to be fully connected to the first longitudinal reinforcing plate 331, thereby ensuring the connection stability between each transverse reinforcing plate 33 and the first longitudinal reinforcing plate 331, and providing better transverse reinforcement to the first longitudinal reinforcing plate 331.

[0064] In addition to making each transverse reinforcing plate 32 a trapezoidal structure, it is also feasible to make only the first transverse reinforcing plate 321 or the second transverse reinforcing plate 322 trapezoidal in specific implementation, depending on the specific circumstances.

[0065] In this embodiment, please refer to Figure 1 and Figure 2 As shown, in some of the exemplary embodiments, the connecting beam 4 may be, for example, a tubular beam.

[0066] At this point, the connecting beam 4 is made of tubular beam, which has advantages such as simple structure and easy manufacturing. It can also obviously take advantage of the high structural strength of tubular beam to ensure the structural strength of the connecting beam 4 itself, thereby helping to further improve the reliability of the trailer structure connection on the vehicle.

[0067] Since the connecting beam 4 is a tubular beam, in some exemplary embodiments, the cross-section of the connecting beam 4 may be square.

[0068] Thus, by making the cross-section of the connecting beam 4, which uses a tube beam, square, it can be understood that through the square cross-section design of the connecting beam 4, this embodiment can achieve a better anti-rotation effect when the connecting beam 4 is under force, effectively preventing the trailer structure from twisting relative to the connecting beam 4 and the connecting beam 4 from twisting relative to the connecting seat 3. This allows the towing force from the trailer structure to be effectively transmitted to the connecting seat 3 through the connecting beam 4, which helps to improve the stability of the connecting structure.

[0069] It is worth noting that when using tubular beams, especially tubular beams with square cross-sections, the cross-sectional dimensions of the connecting beam 4 can be determined based on the material of the connecting beam 4 and the towing requirements of the trailer structure 2, among other design considerations.

[0070] Furthermore, besides using a tubular beam for the connecting beam 4, other structural forms of beam structures can also be adopted for the connecting beam 4 in other embodiments. Moreover, even when using a tubular beam, besides having a square cross-section, it is also possible to have a circular or other cross-sectional shape for the connecting beam 4.

[0071] In this embodiment, to achieve through-connection at the ends of the connecting beam 4, through-holes are formed on each longitudinal reinforcing plate 33. At this point, continuing as... Figure 3 As shown, in some exemplary embodiments, for example, the first longitudinal reinforcing plate 331 may also be provided with a connecting flange 33a arranged circumferentially along the connecting beam 4, and the connecting flange 33a may also be connected to the connecting beam 4.

[0072] At this time, by providing a connecting flange 33a arranged circumferentially along the connecting beam 4 on the first longitudinal reinforcing plate 331 and connecting the connecting flange 33a to the connecting beam 4, the structural strength of the connecting position of the connecting beam 4 on the first longitudinal reinforcing plate 331 can be increased, and the connection strength between the first longitudinal reinforcing plate 331 and the connecting beam 4 can also be increased, which is conducive to improving the stability of the connection between the connecting beam 4 and the connecting seat 3.

[0073] In practice, the connecting flange 33a on the first longitudinal reinforcing plate 331 can generally be formed by stamping when forming the hollow hole on the first longitudinal reinforcing plate 331. Meanwhile, in addition to providing the connecting flange 33a on the first longitudinal reinforcing plate 331, it is also possible to provide the connecting flange 33a on the second longitudinal reinforcing plate 332, or to provide the connecting flange 33a on both longitudinal reinforcing plates 33.

[0074] It is worth noting that, regarding the connection structure of this embodiment, based on the above exemplary implementations, in specific implementation, as a preferred embodiment, it is still composed of... Figures 1 to 4As shown, it may include, for example, connecting seats 3 disposed on the left and right sides, and a connecting beam 4 connecting the two connecting seats 3.

[0075] The connecting seat 3 includes a connecting plate 31, and a plurality of horizontal reinforcing plates 32 and a plurality of vertical reinforcing plates 33 arranged side by side connected to the connecting plate 31. The horizontal reinforcing plates 32 and the vertical reinforcing plates 33 are connected together in a cross-shaped manner. The end of the connecting beam 4 passes through each vertical reinforcing plate 33 and is connected to each vertical reinforcing plate 33.

[0076] The plurality of transverse reinforcing plates 32 include a first transverse reinforcing plate 321 and a second transverse reinforcing plate 322, and the plurality of longitudinal reinforcing plates 33 include a first longitudinal reinforcing plate 331 and a second longitudinal reinforcing plate 332. The first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 are located on one side of the first longitudinal reinforcing plate 331, and the second longitudinal reinforcing plate 332 is located between the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322.

[0077] Furthermore, the first longitudinal reinforcing plate 331 is located on the side close to the connecting plate 31 and is integrally connected to the connecting plate 31 in an "L" shape, and the distance between the first longitudinal reinforcing plate 331 and the second longitudinal reinforcing plate 332 is not less than 30mm. At the same time, the first transverse reinforcing plate 321 is located between the two sets of connecting through holes 34 on the connecting plate 31, and both the first transverse reinforcing plate 321 and the second transverse reinforcing plate 322 are trapezoidal.

[0078] In addition, the connecting beam 4 is a tubular beam, and its cross-section is also square. Meanwhile, a connecting flange 33a is provided on the first longitudinal reinforcing plate 331, arranged circumferentially along the connecting beam 4, and the connecting flange 33a is connected to the connecting beam 4.

[0079] In the preferred embodiment of the above connection structure, the specific setting and arrangement of the connecting seat 3, connecting beam 4, etc. can still be referred to the description in the above exemplary embodiments. Furthermore, in this preferred embodiment, the beneficial effects brought about by the design of the connecting seat 3 and connecting beam 4 can also be referred to the description in the above exemplary embodiments.

[0080] The connection structure of this embodiment adopts the above design, which can not only increase the structural strength of the connecting seat 3 itself by using the transverse reinforcing plates 32 and longitudinal reinforcing plates 33 that are interwoven, but also use the connecting beam 4 to connect through each longitudinal reinforcing plate 33 to increase the connection strength between the connecting beam 4 and the connecting seat 3. This is beneficial to ensuring the reliability of the trailer structure 2 connected on the vehicle, and has good practicality.

[0081] An embodiment of the second aspect of this application provides a vehicle having a connection structure as described in the first aspect embodiment above on its body.

[0082] As mentioned in the above embodiments, the connection structure in this embodiment can be connected to the vehicle body longitudinal beam 1, and the vehicle body longitudinal beam 1 can be, for example, the rear floor longitudinal beam at the rear of the vehicle body, as shown in the example. Figure 1 As shown, the trailer structure 2 is attached to the rear of the vehicle.

[0083] Furthermore, in specific implementation, the connection method between the above-mentioned connecting structure and the vehicle body longitudinal beam 1, that is, the connection method between each side connecting seat 3 and the vehicle body longitudinal beam 1 on the same side, adopts the existing conventional connection structure, and can ensure the reliability of the connection between the connecting structure and the vehicle body longitudinal beam 1.

[0084] However, as an example of the connection method between the connecting seat 3 and the longitudinal beam 1 of the vehicle body, let's continue to combine... Figures 5 to 9 As shown, in some exemplary embodiments, the connecting plate 31 in each side connecting seat 3 is connected to the end of the longitudinal beam 1 on the same side of the vehicle body, and a plurality of connecting components 7 are provided in the longitudinal beam 1 of the vehicle body. Each connecting component 7 is connected to the corner position in the longitudinal beam 1 of the vehicle body, and the connecting plate 31 is connected to each connecting component 7.

[0085] At this time, with the connecting plate 31 in the connecting seat 3 connected to the end of the vehicle longitudinal beam 1, a connecting component 7 is provided in the vehicle longitudinal beam 1 and connected to the inner corner of the vehicle longitudinal beam 1. The connecting plate 31 is connected to the connecting component 7. It can be understood that this embodiment can increase the stability of the connecting component 7 on the vehicle longitudinal beam 1 by taking advantage of the high structural strength of the corner of the vehicle longitudinal beam 1, and improve the ability of the connecting component 7 to transmit the towing force in the vehicle longitudinal beam 1. This helps to improve the stability of the trailer structure 2 on the vehicle and improve the towing performance of the trailer structure 2.

[0086] In practical implementation, it is worth noting that, preferably, the following can be used: Figure 7 As shown, connecting components 7 are provided at each corner position within the longitudinal beam 1 of the vehicle body, and the connecting seat 3 can also be connected to each connecting component 7 one by one through the connecting piece 5 passing through each connecting hole 34 on the connecting plate 31.

[0087] In addition to providing the aforementioned connecting component 7 within the vehicle body longitudinal beam 1, this embodiment may also, for example, provide a longitudinal beam end plate 6 at the end of the vehicle body longitudinal beam 1. In this case, the connecting member 5 used to connect the connecting seat 3 and the connecting component 7 passes through the through hole provided on the longitudinal beam end plate 6, thereby fixing the connecting seat 3 and the connecting component 7 together.

[0088] In this embodiment, based on the arrangement of the connecting assembly 7 within the longitudinal beam 1 of the vehicle body, in some exemplary embodiments, please refer to... Figure 8 and Figure 9As shown, the connection component 7 may include, for example, a connection bracket 71 and a connection sleeve 72.

[0089] The connecting sleeve 72 is a threaded tube with a threaded connection hole inside. The connecting sleeve 72 is fixed to the corner position inside the longitudinal beam 1 of the vehicle body through the connecting bracket 71. The connecting plate 31 is also specifically connected to the connecting sleeve 72.

[0090] This allows the connecting assembly 7 to include a connecting bracket 71 and a connecting sleeve 72 fixed to the inner corner of the longitudinal beam 1 of the vehicle body via the connecting bracket 71. This not only ensures the connection strength between the connecting seat 3 and the connecting assembly 7 by utilizing the larger size of the connecting sleeve 71 compared to the conventional nut structure, but also avoids problems such as easy deformation and cracking of the connection position due to the small stress point at the connection position on the longitudinal beam 1 of the vehicle body.

[0091] At the same time, the use of the connecting bracket 71 obviously facilitates the connection of the connecting sleeve 72 in the longitudinal beam 1 of the vehicle body, and ensures the reliability of the connection arrangement of the connecting sleeve 72 at the corner position in the longitudinal beam 1 of the vehicle body.

[0092] In a specific implementation, as an example, the connecting bracket 72 of this embodiment may include a bracket body 721 and bracket flanges 722 located on both sides of the bracket body 721.

[0093] The bracket body 721 has a groove 721a, and the connecting sleeve 71 can be connected to the groove 721a by welding. The two bracket flanges 722 are folded to one side relative to the bracket body 721, and the two bracket flanges 722 can also be connected to the inner wall of the vehicle longitudinal beam 1 by welding.

[0094] It is worth noting that, in addition to making the connecting component 7 in the longitudinal beam 1 of the vehicle body adopt the above-mentioned structural form, including the connecting bracket 71 and the connecting sleeve 72, it is also possible to make the connecting component 7 adopt other structures that are fixed in the corner position in the longitudinal beam 1 of the vehicle body, as long as it can cooperate with the connecting piece 5 to fix the connecting seat 3 to the end of the longitudinal beam 1 of the vehicle body.

[0095] The vehicle in this embodiment, by setting the connection structure as described above on the vehicle body, can ensure the reliability of the trailer structure 2 connection on the vehicle by increasing the structural strength of each component in the connection structure and increasing the connection strength between the components. This helps to improve the quality of use when the vehicle is equipped with the trailer structure 2, and thus has good practicality.

[0096] The above descriptions are merely some embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the protection scope of the claims of this application.

Claims

1. A connection structure suitable for connecting a trailer structure (2) to a vehicle body, characterized in that: It includes connecting seats (3) located on the left and right sides respectively, and connecting beams (4) connecting the connecting seats (3) on both sides; The connecting beam (4) is used to connect the trailer structure (2), and the connecting seat (3) includes a connecting plate (31), and a plurality of transverse reinforcing plates (32) and a plurality of longitudinal reinforcing plates (33) arranged side by side connected to the connecting plate (31). The connecting plate (31) is used to connect the vehicle body. The transverse reinforcing plates (32) and the longitudinal reinforcing plates (33) are connected together in a cross-shaped manner. The end of the connecting beam (4) passes through the longitudinal reinforcing plates (33) and is connected to the longitudinal reinforcing plates (33).

2. The connection structure according to claim 1, characterized in that: The plurality of transverse reinforcing plates (32) include a first transverse reinforcing plate (321) and a second transverse reinforcing plate (322), and the plurality of longitudinal reinforcing plates (33) include a first longitudinal reinforcing plate (331) and a second longitudinal reinforcing plate (332); The first transverse reinforcing plate (321) and the second transverse reinforcing plate (322) are located on one side of the first longitudinal reinforcing plate (331), and the second longitudinal reinforcing plate (332) is located between the first transverse reinforcing plate (321) and the second transverse reinforcing plate (322).

3. The connection structure according to claim 2, characterized in that: The first longitudinal reinforcing plate (331) is located on the side near the connecting plate (31), and the first longitudinal reinforcing plate (331) and the connecting plate (31) are integrally connected in an "L" shape; and / or, The distance between the first longitudinal reinforcing plate (331) and the second longitudinal reinforcing plate (332) is not less than 30 mm.

4. The connection structure according to claim 2, characterized in that: The vehicle body connection points on the connecting plate (31) are arranged in two groups at longitudinal intervals, and the vehicle body connection points in each group are multiple points arranged in a horizontal sequence. The first transverse reinforcing plate (321) or the second transverse reinforcing plate (322) is located between the two sets of vehicle body connection points.

5. The connection structure according to claim 2, characterized in that: The connecting plate (31) is provided with a connecting through hole (34), and the connecting plate (31) can be detachably connected to the vehicle body by a connector (5) passing through the connecting through hole (34); and / or, At least one of the first transverse reinforcing plate (321) and the second transverse reinforcing plate (322) is trapezoidal.

6. The connection structure according to any one of claims 1 to 5, characterized in that: The connecting beam (4) is a tubular beam.

7. The connection structure according to claim 6, characterized in that: The cross-section of the connecting beam (4) is square; and / or, At least one of the longitudinal reinforcing plates (33) is provided with a connecting flange (33a) arranged circumferentially along the connecting beam (4), and the connecting flange (33a) is connected to the connecting beam (4).

8. A vehicle, characterized in that: The vehicle body is provided with the connection structure as described in any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that: The connecting plate (31) in each of the connecting seats (3) is connected to the end of the longitudinal beam (1) of the vehicle body on the same side; The vehicle body longitudinal beam (1) is provided with a connecting component (7), which is connected to the corner position inside the vehicle body longitudinal beam (1), and the connecting plate (31) is connected to the connecting component (7).

10. The vehicle according to claim 9, characterized in that: The connecting assembly (7) includes a connecting bracket (71) and a connecting sleeve (72); The connecting sleeve (72) is fixed to the corner position inside the longitudinal beam (1) of the vehicle body through the connecting bracket (71), and the connecting plate (31) is connected to the connecting sleeve (72).

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