Tow hook assembly, vehicle body structure, and vehicle

Abstract

The application relates to a tow hook assembly, a vehicle body structure and a vehicle. The tow hook assembly comprises a cross beam, a connecting part and a tow hook. The connecting part is connected with the cross beam, is inserted into a rear longitudinal beam and is fixedly connected with the rear longitudinal beam. The tow hook is connected with the cross beam. In this way, the connecting part is connected with the cross beam and is inserted into the rear longitudinal beam to be fixed, so that a more stable overall structure is formed, and the stability and rigidity of the whole tow hook assembly are improved. The tow hook is connected with the cross beam, and the cross beam is fixedly connected with the rear longitudinal beam through the connecting part. This makes the load generated during towing be more effectively transmitted from the tow hook to the vehicle body structure through the cross beam and the connecting part in sequence, so that the overall carrying capacity is improved. In addition, the design can also uniformly disperse the stress to the rear longitudinal beam with higher strength, reduces stress concentration, greatly improves the durability of the structure of the tow vehicle assembly and increases the towing quality of the tow vehicle assembly.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a tow hook assembly, vehicle body structure, and vehicle. Background Technology

[0002] As consumers demand higher functionality from their vehicles, requiring not only passenger transport but also the ability to tow RVs, the tow hook assembly is a crucial component for this purpose. Installed at the rear of the vehicle, it enables the towing of the RV. However, existing tow hook assemblies have limited towing capacity, making them prone to structural breakage and detachment from the vehicle, potentially leading to serious traffic accidents. Summary of the Invention

[0003] This application provides a tow hook assembly, a vehicle body structure, and a vehicle, aiming to solve the problem in the related art that the tow hook assembly has a small towing capacity, and that the towed caravan is prone to structural breakage, causing it to detach from the vehicle in front and resulting in serious traffic accidents.

[0004] To achieve the above objectives, according to a first aspect of this application, a tow hook assembly is provided, comprising:

[0005] beam;

[0006] A connecting portion, which is connected to the crossbeam, is inserted into and fixedly connected to the rear longitudinal beam; and...

[0007] The tow hook is connected to the crossbeam.

[0008] Optionally, two connecting parts are provided and spaced apart along the length of the crossbeam, and the crossbeam is connected to the rear longitudinal beam through the two connecting parts.

[0009] Optionally, the connecting part includes at least two connecting arms spaced apart, one end of each connecting arm is fixedly connected to the crossbeam, and the other end of each connecting arm is used to insert into the rear longitudinal beam and is used to be fixedly connected to the rear longitudinal beam.

[0010] Optionally, at least two of the connecting arms include two first connecting arms spaced apart along the length direction of the crossbeam, the two first connecting arms being used to fixably connect to two side walls of the rear longitudinal beam that are disposed opposite to each other along the length direction of the crossbeam.

[0011] Optionally, each of the first connecting arms is provided with a slot, and the crossbeam is adapted to be inserted into the slot.

[0012] Optionally, the first connecting arm includes:

[0013] An insert section, used to insert into the rear longitudinal beam;

[0014] The connecting segment, along the thickness direction of the crossbeam, has a size larger than that of the insertion segment. The connecting segment is connected to the insertion segment, and the slot is provided on the side of the connecting segment opposite to the insertion segment.

[0015] Optionally, the connection segment includes:

[0016] A connecting body is connected to the insertion segment;

[0017] Two snap-fit ​​arms are arranged opposite each other and spaced apart along the thickness direction of the crossbeam. Both snap-fit ​​arms are connected to the connecting body, and the two snap-fit ​​arms and the connecting body form the snap-fit ​​groove.

[0018] Optionally, each of the snap-fit ​​arms is provided with an abutment arm on the side facing the crossbeam, and the abutment arm abuts against the crossbeam, wherein the cross-section of the abutment arm is larger than the cross-section of the snap-fit ​​arm along the thickness direction of the crossbeam.

[0019] Optionally, in one of the connecting portions, the abutment arm extends from one of the two adjacent snap-fit ​​arms.

[0020] Optionally, the connecting part is detachably connected to the crossbeam.

[0021] Optionally, the connecting portion is provided with a first through hole;

[0022] The crossbeam is provided with a second through hole;

[0023] The tow hook assembly also includes a first fastener, which passes through the first through hole and the second through hole to fix the connecting part and the crossbeam.

[0024] Optionally, the second through hole extends along the length of the crossbeam.

[0025] Optionally, each side end of the crossbeam is provided with a plurality of second through holes;

[0026] The first fastener passes through one of the plurality of second through holes and the first through hole to secure the connection and the crossbeam.

[0027] Optionally, it also includes a sensor assembly mounted on the connection portion, the sensor assembly being used to monitor the stress borne by the connection portion.

[0028] Optionally, it also includes a display module electrically connected to the sensor assembly, the display module being used to display the stress borne by the connection portion.

[0029] According to a second aspect of this application, a vehicle body structure is provided, comprising:

[0030] Rear longitudinal beam;

[0031] As described above, in the tow hook assembly, the connecting part is inserted into the rear longitudinal beam and fixedly connected to the rear longitudinal beam.

[0032] Optionally, the rear longitudinal beam includes two side walls arranged opposite each other along the length direction of the transverse beam and a bearing plate connected to the two side walls, wherein the bearing plate and the two side walls together enclose an insertion space;

[0033] The connecting part is inserted into the insertion space and is fixedly connected to the two side walls.

[0034] According to a third aspect of this application, a vehicle is also provided, the vehicle including the body structure described above.

[0035] In the tow hook assembly of this application embodiment, by connecting the connecting part to the crossbeam and fixing the connecting part inside the rear longitudinal beam, a more stable overall structure is formed, improving the stability and rigidity of the entire tow hook assembly. The tow hook is connected to the crossbeam, and the crossbeam is firmly fixed to the rear longitudinal beam through the connecting part. This allows the load generated during towing to be more effectively transferred from the tow hook through the crossbeam and the connecting part to the vehicle body structure, thereby improving the overall load-bearing capacity. Furthermore, since the connecting part is fixed inside the rear longitudinal beam, multiple connection points can be made between the connecting part and the rear longitudinal beam. The force applied to the tow hook can be evenly transferred to the high-strength rear longitudinal beam through these fixing points, reducing stress concentration and significantly improving the structural durability of the trailer assembly and increasing the towing capacity of the trailer assembly.

[0036] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0039] Figure 1 This is a schematic diagram of the tow hook assembly provided in an exemplary embodiment of this disclosure;

[0040] Figure 2 This is a schematic diagram of the connecting arm provided in an exemplary embodiment of this disclosure;

[0041] Figure 3 This is a schematic diagram of the structure in an exemplary embodiment of the present disclosure, showing the connection between the connecting arm and the crossbeam.

[0042] Figure 4 This is a schematic diagram of the vehicle body structure (partial structure) provided in an exemplary embodiment of this disclosure;

[0043] Figure 5 yes Figure 4 The diagram shows the structure of the crossbeam, rear longitudinal beam, and connecting parts.

[0044] Explanation of reference numerals in the attached figures:

[0045] 10. Tow hook assembly; 1. Crossbeam; 11. Second through hole; 2. Connecting part; 21. Connecting arm; 211. First connecting arm; 2111. Slot; 2112. Insertion section; 2113. Connecting section; 21131. Connecting body; 21132. Snap-fit ​​arm; 21133. Abutment arm; 22. First through hole; 3. Tow hook; 4. First fastener; 5. Sensor assembly; 20. Rear longitudinal beam; 201. Side wall; 202. Bearing plate; 30. First screw connector. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0047] This application provides a tow hook assembly 10, please refer to... Figures 1 to 3 , Figure 1 This is a schematic diagram of the tow hook assembly provided in an exemplary embodiment of this disclosure; Figure 2 This is a schematic diagram of the connecting arm provided in an exemplary embodiment of this disclosure; Figure 3 This is a schematic diagram of the structure in an exemplary embodiment of the present disclosure, showing the connection between the connecting arm and the crossbeam.

[0048] The unhooking assembly includes a crossbeam 1, a connecting part 2, and a tow hook 3.

[0049] It should be noted that the crossbeam 1 can replace the bumper and also has a trailer mounting connection function. Specifically, the shape of the crossbeam 1 can be selected as needed. For example, in some embodiments, the cross-sectional shape of the crossbeam 1 along its length direction can be rectangular, B-shaped, Z-shaped, or square, etc. Specifically, this application does not limit this.

[0050] The connecting part 2 is connected to the crossbeam 1. The connecting part 2 is used to be inserted into the rear longitudinal beam 20 and fixedly connected to the rear longitudinal beam 20.

[0051] It should be noted that the method of connecting the connecting part 2 to the crossbeam 1 can be selected as needed. For example, in one embodiment, the connecting part 2 and the crossbeam 1 can be welded together. In another embodiment, the connecting part 2 and the crossbeam 1 can be screwed together. In other embodiments, the connecting part 2 and the crossbeam 1 can be fixed by a pin. Specifically, this application does not limit this.

[0052] Furthermore, the method of fixing the connecting part 2 to the rear longitudinal beam 20 can be selected as needed. For example, in one embodiment, the connecting part 2 and the rear longitudinal beam 20 can be welded together. In another embodiment, the connecting part 2 and the rear longitudinal beam 20 can be fixed by screws. In other embodiments, the connecting part 2 and the rear longitudinal beam 20 can be fixed by pins. Specifically, this application does not limit this.

[0053] The tow hook 3 is connected to the crossbeam 1.

[0054] It should be noted that the method of connecting the tow hook 3 to the crossbeam 1 can be selected as needed. For example, in one embodiment, the tow hook 3 and the crossbeam 1 can be welded together. In another embodiment, the tow hook 3 and the crossbeam 1 can be fixed by screws. In other embodiments, the tow hook 3 and the crossbeam 1 can be fixed by pins. Specifically, this application does not limit this. In addition, the position of the tow hook 3 on the crossbeam 1 can be selected as needed. For example, in one embodiment, the tow hook 3 can be installed in the middle of the crossbeam 1. In other embodiments, the tow hook 3 can also be installed at both ends of the crossbeam 1. Specifically, this application does not limit this.

[0055] In the tow hook assembly 10 of this application embodiment, by connecting the connecting part 2 to the crossbeam 1 and fixing the connecting part 2 inside the rear longitudinal beam 20, a more stable overall structure is formed, improving the stability and rigidity of the entire tow hook assembly 10. The tow hook 3 is connected to the crossbeam 1, and the crossbeam 1 is firmly fixed to the rear longitudinal beam 20 through the connecting part 2. This allows the load generated during towing to be more effectively transferred from the tow hook 3 to the vehicle body structure through the crossbeam 1 and the connecting part 2, thereby improving the overall load-bearing capacity. In addition, since the connecting part 2 is fixed inside the rear longitudinal beam 20, the connecting part 2 and the rear longitudinal beam 20 can be connected at multiple points. The force applied to the tow hook can be evenly transferred to the high-strength rear longitudinal beam 20 through these fixed points, reducing stress concentration. This can significantly improve the structural durability of the trailer assembly and increase the towing capacity of the trailer assembly.

[0056] Reference Figures 1 to 3In some embodiments, two connecting parts 2 are provided and spaced apart along the length of the crossbeam 1. The crossbeam 1 is connected to the rear longitudinal beam 20 through the two connecting parts 2. Thus, using two connecting parts 2 allows for a more even distribution of the force applied to the crossbeam 1, reducing the risk of deformation or failure due to excessive stress at a single point, and improving the rigidity and stability of the entire tow hook assembly 10. Because stress is more evenly distributed in the structure, the occurrence of local overload is reduced, helping to extend the service life of the tow hook assembly 10. Two connecting parts 2 mean that the load can be transferred to the rear longitudinal beam 20 of the vehicle through more paths, which not only optimizes load distribution but also increases the maximum load that the tow hook assembly can withstand. Because the load is more effectively managed and distributed, the tow hook assembly 10 can support greater towing weight. If one connecting part 2 fails or is damaged, the other connecting part 2 can still provide some connection, providing additional safety for the structure.

[0057] Continue to refer to Figures 1 to 3 In some embodiments, the connecting portion 2 includes at least two connecting arms 21 spaced apart. One end of each connecting arm 21 is fixedly connected to the crossbeam 1, and the other end of each connecting arm 21 is inserted into and fixedly connected to the rear longitudinal beam 20. Thus, by providing at least two connecting arms 21 spaced apart on the crossbeam 1, the force applied to the crossbeam 1 can be distributed more evenly. This not only reduces single-point stress concentration but also enhances the stability of the tow hook assembly 10. The arrangement of at least two connecting arms 21 establishes multiple connection points with the crossbeam 1, thereby increasing the rigidity and deformation resistance of the structure, making the tow hook assembly 10 more stable under external forces. Two or more connecting arms 21 allow the load to be transferred more effectively from the crossbeam 1 to the rear longitudinal beam 20, optimizing the load distribution of the entire system and thus increasing the maximum load capacity. Because the load is better managed and distributed, the tow hook assembly 10 can safely support greater towing weights. If one connecting arm 21 fails, the other connecting arms 21 can still provide support, increasing the redundancy of the hook assembly 10 and improving safety.

[0058] It should be noted that the number of connecting arms 21 can be selected as needed. For example, when the mass of the vehicle to be towed by the towing vehicle through the tow hook assembly 10 is small, that is, when the towing weight is low, the number of connecting arms 21 can be reduced to reduce the mass of the towing hook assembly. The number of connecting arms 21 can be flexibly adjusted according to the towing mass.

[0059] In some embodiments, at least two connecting arms 21 include two first connecting arms 211 spaced apart along the length of the crossbeam 1. The two first connecting arms 211 are fixedly connected to two side walls 201 of the rear longitudinal beam 20, which are opposite to each other along the length of the crossbeam 1. Thus, by arranging two first connecting arms 211 spaced apart along the length of the crossbeam 1 and fixing them to the two side walls 201 of the rear longitudinal beam 20 respectively, the force applied to the crossbeam 1 can be effectively distributed. This reduces single-point stress concentration and increases the stability of the tow hook assembly 10. The two connecting arms 21, respectively fixed to the two side walls 201 of the rear longitudinal beam 20, provide bidirectional support, further enhancing the rigidity and deformation resistance of the entire tow hook assembly 10. The design of the two first connecting arms 211 allows the load to be transferred more evenly from the crossbeam 1 to the two side walls 201 of the rear longitudinal beam 20, optimizing the load distribution of the overall tow hook assembly 10 and thus increasing the maximum load capacity. Because the load is more evenly distributed on both sides of the rear longitudinal beam 20, the tow hook assembly 10 is able to support a larger towing weight more safely.

[0060] Reference Figure 2 and Figure 3 In some embodiments, each first connecting arm 211 is provided with a slot 2111, into which the crossbeam 1 is adapted to snap into. Thus, the design of the slot 2111 allows the crossbeam 1 to be accurately positioned between the two first connecting arms 211, ensuring precise alignment between the crossbeam 1 and the first connecting arms 211. This not only helps improve installation accuracy but also ensures the overall consistency of the structure. By snapping the crossbeam 1 into the slot 2111, the rigidity and stability of the connection are increased, reducing the risk of loosening or displacement due to vibration or other external forces. The design of the slot 2111 allows the crossbeam 1 to quickly and easily align with the first connecting arms 211 without complex adjustment steps, greatly simplifying the installation process. The presence of the slot 2111 reduces the calibration time required during installation, improving overall assembly efficiency. The slot 2111 design ensures close contact between the crossbeam 1 and the first connecting arms 211, thereby achieving a more uniform load distribution. This effectively disperses the load applied to the tow hook 3, reducing localized stress concentration. The crossbeam 1 is fixed by the slot 2111, which enhances the support of the first connecting arm 211 on the crossbeam 1, enabling it to withstand greater tension and pressure, and further improving the load-bearing capacity of the tow hook assembly 10.

[0061] Reference Figure 2 and Figure 3In some embodiments, the first connecting arm 211 includes an insertion section 2112 and a connecting section 2113. The insertion section 2112 is inserted into the rear longitudinal beam 20. Along the thickness direction of the crossbeam 1, the connecting section 2113 is larger than the insertion section 2112. The connecting section 2113 is connected to the insertion section 2112, and a slot 2111 is provided on the side of the connecting section 2113 opposite to the insertion section 2112. Thus, by dividing the first connecting arm 2111 into the insertion section 2112 and the connecting section 2113, where the insertion section 2112 is used for insertion and fixation within the rear longitudinal beam 20, and the connecting section 2113 is used for connection with the crossbeam 1, this design can more effectively distribute the load generated during towing, making the force transmission more uniform. Because the connecting section 2113 is larger than the insertion section 2112, the area and strength of the connection are increased, which helps to improve the rigidity and deformation resistance of the tow hook assembly 10. The larger size of the connecting section 2113 means it can provide stronger support, thereby increasing the maximum load capacity of the entire tow hook assembly 10. The slot 2111 is located on the side of the connecting section 2113 opposite to the insertion section 2112, ensuring a tight and stable connection between the crossbeam 1 and the first connecting arm 211, reducing the risk of loosening or displacement, and further enhancing the load-bearing performance of the tow hook assembly 10.

[0062] Reference Figure 2 and Figure 3 In some embodiments, the connecting section 2113 includes a connecting body 21131 and two snap-fit ​​arms 21132. The connecting body 21131 is connected to the insertion section 2112. The two snap-fit ​​arms 21132 are arranged opposite to each other and spaced apart along the thickness direction of the crossbeam 1. Both snap-fit ​​arms 21132 are connected to the connecting body 21131, and the two snap-fit ​​arms 21132 and the connecting body 21131 form a slot 2111. Thus, by having the two snap-fit ​​arms 21132 and the connecting body 21131 together form the slot 2111, the crossbeam 1 can be accurately positioned during installation, reducing assembly errors and improving the consistency and stability of the overall structure. The slot 2111 formed by the snap-fit ​​arms 21132 and the connecting body 21131 can provide stronger support, helping to distribute the load applied to the crossbeam 1 more evenly, thereby increasing the maximum load-bearing capacity of the entire hook assembly 10. Since the slot 2111 is formed by two snap-fit ​​arms 21132 and the connecting body 21131, it provides a larger contact area, which increases the strength of the connection and allows the first connecting arm 211 to withstand greater tensile and compressive forces. The design of the slot 2111, formed by the two snap-fit ​​arms 21132 and the connecting body 21131, facilitates regular inspection and necessary maintenance of the crossbeam 1, and helps to identify and resolve potential problems in a timely manner.

[0063] Reference Figure 2 and Figure 3In some embodiments, each snap-fit ​​arm 21132 has an abutment arm 21133 on the side facing the crossbeam 1. The abutment arm 21133 abuts against the crossbeam 1, wherein the cross-section of the abutment arm 21133 is larger than the cross-section of the snap-fit ​​arm 21132 along the thickness direction of the crossbeam 1. Thus, by adding an abutment arm 21133 to the snap-fit ​​arm 21132 and making the abutment arm 21133 directly contact the crossbeam 1, the contact area with the crossbeam 1 is increased. This not only helps to distribute the load applied to the crossbeam 1 but also reduces local stress concentration, enhancing the stability of the tow hook assembly 10. Because the cross-section of the abutment arm 21133 is larger than that of the snap-fit ​​arm 21132, it provides stronger support in the thickness direction of the crossbeam 1, further improving the rigidity and deformation resistance of the entire tow hook assembly 10. The larger abutment arm 21133 can distribute the load more evenly onto the crossbeam 1, thereby increasing the maximum load-bearing capacity of the tow hook assembly 10. This allows the tow hook assembly 10 to remain stable while withstanding greater tensile and compressive forces. The design of the abutment arm 21133 provides additional support points for the crossbeam 1, ensuring that the crossbeam 1 does not bend excessively or shift under high loads, thus enhancing the support performance of the tow hook assembly 10. In addition to the main fixing function provided by the slot 2111, the abutment arm 21133 provides additional physical restraint, forming a dual protection mechanism that further reduces the possibility of failure of the tow hook assembly 10. The presence of the abutment arm 21133 helps to quickly position and stabilize the crossbeam 1, reducing the adjustment work required during installation and simplifying the assembly process. The abutment arm 21133 can fit well with the crossbeam 1, reducing fretting wear damage at that location.

[0064] Reference Figure 1 In some embodiments, in a connecting portion 2, abutment arms 21133 extend from adjacent sides of the two snap-fit ​​arms 21132. Thus, both the snap-fit ​​arms 21132 and the abutment arms 21133 contact the crossbeam 1, increasing the contact area and allowing for a more even distribution of force on the crossbeam 1, reducing localized stress concentration and preventing deformation or breakage of the crossbeam 1 due to excessive stress. The abutment arms 21133 provide additional support, particularly enhancing bending strength in the thickness direction of the crossbeam 1, ensuring that the crossbeam 1 does not bend excessively or become unstable under high loads. The design of the abutment arms 21133 not only increases the fixing effect but also helps to quickly position the crossbeam 1, reducing adjustment work during installation and improving assembly efficiency. By extending abutment arms 21133 from adjacent sides of the two snap-fit ​​arms 21132, the space between the two snap-fit ​​arms 21132 is fully utilized, ensuring the compact structure of the tow hook assembly 10.

[0065] In some embodiments, the connecting part 2 is detachably connected to the crossbeam 1. This detachable connection allows for quick and easy assembly or disassembly of the connecting part 2 and the crossbeam 1 without the need for complex tools or lengthy procedures, greatly simplifying installation. When the connecting part 2 or the crossbeam 1 is damaged, the faulty component can be replaced individually without replacing the entire tow hook assembly 10, reducing maintenance costs and time. Furthermore, users can quickly replace different specifications or types of connecting parts 2 and crossbeam 1 combinations according to different usage needs, increasing the adaptability and flexibility of the tow hook assembly 10. Because the components are detachable, they can be packaged separately during transportation, reducing space requirements and logistics costs. Disassembled components are easier to store, occupy less space, and facilitate inventory management and locating required parts.

[0066] Reference Figure 2 and Figure 3 In some embodiments, the connecting part 2 is provided with a first through hole 22, and the crossbeam 1 is provided with a second through hole 11. A first fastener 4 passes through the first through hole 22 and the second through hole 11 to fix the connecting part 2 and the crossbeam 1. Thus, by providing the first through hole 22 and the second through hole 11 on the connecting part 2 and the crossbeam 1 respectively, and using the first fastener 4 for fixation, accurate positioning between the two components can be ensured, assembly errors are reduced, and the structural consistency and stability of the tow hook assembly 10 are improved. The first fastener 4 passing through the first through hole 22 and the second through hole 11 provides a robust mechanical connection, allowing the load to be distributed more evenly between the connecting part 2 and the crossbeam 1, thereby increasing the maximum load-bearing capacity of the tow hook assembly 10. The use of the high-strength first fastener 4 ensures a firm connection between the connecting part 2 and the crossbeam 1, enabling the tow hook assembly 10 to withstand greater tensile and compressive forces.

[0067] It should be noted that the type of the first fastener 4 can be selected as needed. For example, in one embodiment, the first fastener 4 may include a bolt and a nut. In other embodiments, the inner walls of the first through hole 22 and the second through hole 11 may be threaded, and the first fastener 4 may include a screw or a bolt. In other embodiments, the first fastener 4 may include a pin. Specifically, this application does not limit the specific type of fastener.

[0068] Furthermore, the connecting part 2 and the crossbeam 1 are fixed together by a first fastener 4. This allows for fine-tuning of the connection between the connecting part 2 and the crossbeam 1, ensuring optimal fit during installation and improving the stability and consistency of the tow hook assembly 10. The first fastener 4 provides strong clamping force, effectively preventing loosening or displacement at the connection point and enhancing the rigidity and deformation resistance of the entire tow hook assembly 10. The robust connection provided by the first fastener 4 helps to distribute the load applied to the tow hook 3 more evenly, reducing local stress concentration and increasing the maximum load-bearing capacity of the tow hook assembly 10. Using the high-strength first fastener 4 ensures a strong bond between the connecting part 2 and the crossbeam 1, enabling the system to withstand greater tensile and compressive forces. The use of the first fastener 4 provides a reliable mechanical connection, reducing the potential risk of failure due to unstable connections and improving the safety of the tow hook assembly 10. The design of the first fastener 4 makes the assembly of the connecting part 2 and the crossbeam 1 simple and quick, requiring no complex tools or lengthy procedures, greatly simplifying the initial installation process. When a component needs repair or replacement, it can be done by simply disassembling and reinstalling the first fastener 4, which greatly shortens the maintenance time.

[0069] Reference Figure 3 In some embodiments, the second through hole 11 extends along the length of the crossbeam 1. Thus, the second through hole 11 extending along the length of the crossbeam 1 allows the connecting portion 2 to be finely adjusted within a certain range along the crossbeam 1, providing greater installation flexibility. This design ensures that even slight errors during manufacturing or installation can be compensated for by adjusting the position of the first fastener 4, ensuring precise alignment.

[0070] In some embodiments, a plurality of second through holes 11 are provided on the side ends of the crossbeam 1. A first fastener 4 passes through one of the plurality of second through holes 11 and a first through hole 22 to fix the connecting part 2 and the crossbeam 1. Thus, by providing a plurality of second through holes 11 on the side ends of the crossbeam 1, the user can select different installation positions to fix the connecting part 2 according to actual needs. This flexibility allows the system to adapt to various application scenarios and different load requirements, improving the versatility and adaptability of the tow hook assembly 10. If a certain installation position is worn or damaged, other reserved second through hole 11 positions can be selected for re-fixing, increasing the redundancy and service life of the tow hook assembly 10.

[0071] Reference Figure 2In some embodiments, the hook assembly 10 also includes a sensor assembly 5 mounted on the connection portion 2. The sensor assembly 5 is used to monitor the stress borne by the connection portion 2. Thus, by installing the sensor assembly 5 on the connection portion 2, real-time monitoring of the stress borne by the connection portion 2 can be achieved, facilitating timely detection of abnormalities by operators and preventing accidents. Real-time monitoring of the stress state of the connection portion 2 helps ensure that the hook assembly 10 operates within its design range, avoiding structural failure or damage due to overload, thereby improving the overall safety of the hook assembly 10. The data from the sensor assembly 5 can be used to analyze the operating status of the hook assembly 10, helping to identify potential problems or wear areas, allowing for proactive maintenance or replacement, and reducing the risk of sudden failures. Furthermore, by analyzing the data collected by the sensor assembly 5, the actual workload of the hook assembly 10 can be understood, thereby optimizing its design parameters or usage methods and improving the overall performance of the hook assembly 10. Additionally, based on the stress data provided by the sensor assembly 5, predictive maintenance plans can be implemented instead of relying on fixed-cycle inspections. This method allows for more precise scheduling of maintenance time, reducing unnecessary downtime and lowering maintenance costs. In the event of a problem, the data recorded by sensor component 5 can help quickly locate the cause of the fault, simplify the maintenance process, and shorten the repair time.

[0072] It should be noted that the type of sensor component 5 can be selected as needed. For example, sensor component 5 may include at least one of strain gauge, piezoelectric sensor, fiber Bragg grating sensor, capacitive sensor, magnetoelastic sensor and acoustic emission sensor. Specifically, this application does not intend to include such a type.

[0073] In some embodiments, the hook assembly 10 further includes a display module electrically connected to the sensor assembly 5. The display module displays the stress borne by the connection portion 2. Thus, by displaying the stress value borne by the connection portion 2 in real time, the operator can immediately obtain the current stress information. The operator can quickly determine whether there is an overload or other abnormality based on the displayed data and take timely measures, such as adjusting the load or stopping operation, thereby avoiding potential safety risks. Real-time display of stress data helps improve the operator's safety awareness, making them more attentive to the actual working status of the equipment and reducing accidents caused by negligence.

[0074] It should be noted that, in some embodiments, the display module can be configured with warning lines or color codes to indicate situations approaching the ultimate stress level, in conjunction with the monitoring capabilities of the sensor component 5, providing additional safety assurance.

[0075] Specifically, in the embodiments of this application, the installation sequence of the trailer hitch assembly is as follows: First, multiple first connecting arms 211 are assembled onto the rear longitudinal beam 20 and fixed by multiple first fasteners 4; then, the crossbeam 1 is assembled onto the multiple first connecting arms 211 and fixed by the first fasteners 4; the tow hook 3 is welded to the crossbeam 1. This achieves the installation of the trailer hitch assembly. Of course, in other embodiments, the installation sequence of the trailer hitch assembly can be selected as needed.

[0076] Reference Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the vehicle body structure (partial structure) provided in an exemplary embodiment of this disclosure. Figure 5 yes Figure 4 The diagram shows the structure of the crossbeam, rear longitudinal beam, and connecting portion connected together. According to a second aspect of this disclosure, a vehicle body structure is provided, including a rear longitudinal beam 20 and a tow hook assembly 10 as described above, with the connecting portion 2 inserted into and fixedly connected to the rear longitudinal beam 20. The structure of the tow hook assembly 10 is as described above. Since this vehicle body structure adopts all the technical solutions of all the above embodiments, it at least has the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0077] Reference Figure 5 In some embodiments, the rear longitudinal beam 20 includes two side walls 201 arranged opposite each other along the length of the transverse beam 1, and a support plate 202 connected to the two side walls 201. The support plate 202 and the two side walls 201 together enclose an insertion space. The connecting part 2 is inserted into the insertion space and fixedly connected to the two side walls 201. Thus, by inserting the connecting part 2 into the insertion space formed by the two side walls 201 and the support plate 202, and fixing it to the two side walls 201, the rigidity and strength of the entire vehicle structure can be significantly improved. This design allows the load to be distributed more evenly across the entire vehicle body structure, reducing local stress concentration. The insertion space design provides additional support points, helping to prevent the connecting part 2 from deforming or displacing under heavy loads, further enhancing the stability and deformation resistance of the overall structure. The connecting part 2 within the insertion space, fixedly connected to the two side walls 201, forms a more stable support system, allowing the load to be distributed more evenly between the rear longitudinal beam 20 and the connecting part 2, thereby increasing the maximum load-bearing capacity of the system. In addition to the physical constraints provided by the insertion space, the fixed connection with the two side walls 201 adds extra safety, forming a dual protection mechanism that further reduces the possibility of vehicle body structure failure. The insertion space design allows the connecting part 2 to be quickly and easily inserted and fixed in the designated position, reducing the adjustment work required during installation and simplifying the assembly process.

[0078] Reference Figure 4and Figure 5 In some embodiments, the connecting portion 2 is screwed to the two side walls 201 via a first screw connector 30. This screwed connection fixes the connecting portion 2 to the two side walls 201 of the rear longitudinal beam 20, allowing the trailer hitch assembly to better withstand loads along the thickness and width directions of the crossbeam 1. This significantly improves the durability of the trailer hitch assembly or increases its towing capacity. The screwed connection of the connecting portion 2 to the two side walls 201 distributes the force applied to the tow hook 3 more evenly across the two side walls 201, reducing localized stress concentration and thus improving the overall structural stability and resistance to deformation. The screwed connection of the connecting portion 2 to the two side walls 201 forms a robust frame structure, allowing the load to be transferred from the tow hook 3 to the rear longitudinal beam 20 along the optimal path, increasing the maximum load-bearing capacity of the vehicle body structure's trailer hitch assembly. The additional support provided by the side walls 201 ensures that the connecting portion 2 does not deform excessively or become unstable under high loads, enhancing the support performance of the vehicle body structure. The robust screw-in connection reduces the risk of potential failures due to excessive local stress or structural loosening, thus improving safety. The screw-in connection allows the connector 2 to be quickly and easily inserted and secured in the designated position, reducing adjustments during installation and simplifying the assembly process. The screw-in structure design makes the relationship between the connector 2 and the two side walls 201 more intuitive, facilitating regular inspections and necessary maintenance, and helping to identify and resolve potential problems promptly. When repair or replacement of a component is required, it can be accomplished by simply disassembling and reinstalling the first fastener 4, significantly reducing maintenance time.

[0079] Thirdly, a vehicle is provided, including the body structure as described above. The structure of the body structure is as described above. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0080] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not make any specific restrictions.

[0081] Specifically, when the vehicle needs to use a trailer, the rear bumper is removed, and the trailer hitch is installed on the crossbeam 1. The crossbeam 1 is fixed to the rear longitudinal beam 20 via multiple connecting arms 21. When towing a caravan, the load borne by the trailer hitch is directly transferred to the rear longitudinal beam 20 through the crossbeam 1 and the multiple connecting arms 21. The sensor assembly 5 on the multiple connecting arms 21 monitors the stress state at that point in real time during user operation. By monitoring the stress state of the trailer through the sensor assembly 5, the user can understand the status of the trailer in real time, receive warnings of dangerous behavior under adverse working conditions, and improve the safety and reliability of the trailer.

[0082] In addition, the stress state of the connecting part 2 can be collected in real time by the sensor component 5. After processing by the on-board computer system, the load-bearing capacity of the connecting part 2 is evaluated. If the load-bearing capacity of the connecting part 2 is exceeded, the display module will prompt the user to drive cautiously, such as when accelerating, decelerating, overloading, or in bad road conditions, and check whether there are any safety hazards in the connecting part 2. If the stress is within the allowable value, the connecting part 2 is within its load-bearing capacity, and the on-board display system will indicate that the tow hook assembly 10 is normal.

[0083] In the description of this application, the terms "first" and "second" 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0084] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0085] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A tow hook assembly, characterized in that, include: beam; A connecting portion, which is connected to the crossbeam, is inserted into and fixedly connected to the rear longitudinal beam; and... The tow hook is connected to the crossbeam.

2. The tow hook assembly according to claim 1, characterized in that, Two connecting parts are provided and are spaced apart along the length of the crossbeam. The crossbeam is connected to the rear longitudinal beam through the two connecting parts.

3. The tow hook assembly according to claim 1, characterized in that, The connecting part includes at least two connecting arms spaced apart. One end of each connecting arm is fixedly connected to the crossbeam, and the other end of each connecting arm is used to insert into the rear longitudinal beam and is fixedly connected to the rear longitudinal beam.

4. The tow hook assembly according to claim 3, characterized in that, At least two of the connecting arms include two first connecting arms spaced apart along the length of the crossbeam, the two first connecting arms being used to fixally connect to two side walls of the rear longitudinal beam that are disposed opposite to each other along the length of the crossbeam.

5. The tow hook assembly according to claim 4, characterized in that, Each of the first connecting arms is provided with a slot, and the crossbeam is adapted to be inserted into the slot.

6. The tow hook assembly according to claim 5, characterized in that, The first connecting arm includes: An insert section, used to insert into the rear longitudinal beam; The connecting segment, along the thickness direction of the crossbeam, has a size larger than that of the insertion segment. The connecting segment is connected to the insertion segment, and the slot is provided on the side of the connecting segment opposite to the insertion segment.

7. The tow hook assembly according to claim 6, characterized in that, The connection segment includes: A connecting body is connected to the insertion segment; Two snap-fit ​​arms are arranged opposite each other and spaced apart along the thickness direction of the crossbeam. Both snap-fit ​​arms are connected to the connecting body, and the two snap-fit ​​arms and the connecting body form the snap-fit ​​groove.

8. The tow hook assembly according to claim 7, characterized in that, Each of the snap-fit ​​arms has an abutment arm on the side facing the crossbeam, and the abutment arm abuts against the crossbeam. The cross-section of the abutment arm is larger than the cross-section of the snap-fit ​​arm along the thickness direction of the crossbeam.

9. The tow hook assembly according to claim 8, characterized in that, In one of the connecting portions, the abutment arm extends from one side of each of the two snap-fit ​​arms that are adjacent to each other.

10. The tow hook assembly according to any one of claims 1 to 9, characterized in that, The connecting part is detachably connected to the crossbeam.

11. The tow hook assembly according to claim 10, characterized in that, The connecting part is provided with a first through hole; The crossbeam is provided with a second through hole; The tow hook assembly also includes a first fastener, which passes through the first through hole and the second through hole to fix the connecting part and the crossbeam.

12. The tow hook assembly according to claim 11, characterized in that, The second through hole extends along the length of the crossbeam.

13. The tow hook assembly according to claim 11, characterized in that, The side ends of the crossbeam are each provided with a plurality of second through holes; The first fastener passes through one of the plurality of second through holes and the first through hole to secure the connection and the crossbeam.

14. The tow hook assembly according to any one of claims 1 to 9, characterized in that, It also includes a sensor assembly mounted on the connection portion, the sensor assembly being used to monitor the stress borne by the connection portion.

15. The tow hook assembly according to claim 14, characterized in that, It also includes a display module, which is electrically connected to the sensor assembly and is used to display the stress borne by the connection.

16. A vehicle body structure, characterized in that, include: Rear longitudinal beam; In the tow hook assembly as described in any one of claims 1 to 15, the connecting portion is inserted into the rear longitudinal beam and fixedly connected to the rear longitudinal beam.

17. The vehicle body structure according to claim 16, characterized in that, The rear longitudinal beam includes two side walls arranged opposite each other along the length of the transverse beam and a bearing plate connected to the two side walls. The bearing plate and the two side walls together enclose an insertion space. The connecting part is inserted into the insertion space and is fixedly connected to the two side walls.

18. A vehicle, characterized in that, Including the vehicle body structure as described in claim 16 or 17.

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