Automobile anchor ring assembly and body connection structure thereof

Abstract

The application discloses a car anchor ring assembly and a body connecting structure thereof, and belongs to the field of car design.The car anchor ring assembly comprises a pull ring, a pin shaft, an anchor ring base, an anchor ring support, a rear-row seat lock catch mounting plate and a rear wheel cover inner plate; the pull ring is connected with the pin shaft through a first connecting mechanism, and the pin shaft is arranged on the anchor ring base; the anchor ring base is connected with the anchor ring support through a second connecting mechanism; the anchor ring support is welded on the rear-row seat lock catch mounting plate; and the rear-row seat lock catch mounting plate is connected to the rear wheel cover inner plate through welding points. The car anchor ring assembly can solve the problem of the thin structure of the existing luggage net anchor ring.

Description

Technical Field

[0001] This application belongs to the field of automotive design, and specifically relates to an automotive anchor ring assembly and its body connection structure. Background Technology

[0002] With the global integration of the automotive industry and the continued expansion of Chinese automotive brands overseas, vehicle exports must strictly meet the mandatory regulations and international standards of the destination countries. In the European market, especially in Germany, clear performance specifications have been established for passenger car trunk luggage restraint systems. According to the ISO 27955:2010 international standard, luggage net anchor rings should have sufficient strength and stability to ensure that cargo does not slip, tip over, fall off, or produce abnormal noise while the vehicle is in motion, thus ensuring driving safety.

[0003] As a core load-bearing component for securing cargo in the rear cargo compartment, the structural strength, connection reliability, and overall rigidity of automotive luggage net anchor rings directly determine whether they can pass export certification. Currently, most conventional anchor ring structures in the industry are designed to meet domestic usage scenarios, and generally suffer from thin structures, low material strength, insufficient wall thickness, and lack of reinforcement at the vehicle body connection points. During the tensile and durability tests required by regulations, anchor ring deformation, connection failure, weld detachment, and tearing of the vehicle body mounting plate are common occurrences. These issues prevent them from meeting the mechanical performance requirements of ISO27955:2010, leading to vehicle certification failure and hindering the overseas launch and market promotion of the vehicle model. Summary of the Invention

[0004] To address the aforementioned issues, this application provides an automotive anchor ring assembly and its body connection structure, which improves the structural strength and overall rigidity of the luggage net anchor ring.

[0005] An automotive anchor ring assembly and its body connection structure include a pull ring, a pin, an anchor ring base, an anchor ring bracket, a rear seat latch mounting plate, and a rear wheel arch inner plate. The pull ring is connected to the pin via a first connecting mechanism, and the pin is mounted on the anchor ring base. The anchor ring base is connected to the anchor ring bracket via a second connecting mechanism. The anchor ring bracket is welded to the rear seat latch mounting plate. The rear seat latch mounting plate is connected to the rear wheel arch inner plate via weld points.

[0006] The rear seat latch mounting plate provides an anchor ring bracket mounting surface, serving as a load transition platform. Utilizing the original body structure, it features a compact layout that facilitates integration and welding. Meanwhile, the rear wheel arch inner panel, as the main load-bearing base of the body, bears and distributes the overall load, enabling the tensile force to be diffused to the large body, avoiding single-point overload, and meeting the strength requirements of export regulations.

[0007] Preferably, the first connecting mechanism includes an internal spline and an external spline; one end of the pull ring is provided with an internal spline, and one end of the pin is provided with an external spline, and the pull ring and the pin are connected by the internal spline and the external spline.

[0008] The spline structure enables precise transmission and fixation between the pull ring and the pin, ensuring a firm and non-slip connection that is not easily loosened under stress, thus improving the reliability of the pull ring transmission.

[0009] Preferably, the anchor ring base has a double-layer structure, and the side view of the anchor ring base is a folded surface; the pin passes through the double-layer anchor ring base and can rotate relative to it.

[0010] The anchor ring base has a double-layer structure, which supports the pin and provides rotation guidance, effectively improving the structural strength of the anchor ring base and allowing the pull ring to rotate as needed, making it suitable for use at multiple angles in luggage nets; the small gap between the pin and the anchor ring base and the strong shear resistance ensure that it will not loosen under repeated stress, thus improving the durability and safety performance of the assembly.

[0011] Preferably, the second connecting mechanism includes bolts and projection weld nuts; a projection weld nut is welded to the middle of the anchor ring bracket; and the anchor ring base is connected to the anchor ring bracket by bolts and projection weld nuts.

[0012] Projection welded nuts offer precise positioning and high connection strength; bolts are easy to assemble, facilitating after-sales disassembly and maintenance.

[0013] Preferably, the anchor ring bracket has multiple positioning slots in the middle; multiple positioning plates are fixed to the peripheral wall of the anchor ring base, and the anchor ring base and the positioning plates are integrally formed; the positions of the multiple positioning plates and the multiple positioning slots correspond to each other.

[0014] The positioning slot and positioning plate facilitate the initial insertion and positioning of the anchor ring base on the anchor ring bracket, which in turn facilitates the subsequent installation of bolts and prevents the anchor ring base from rotating on the anchor ring bracket during installation, thus ensuring the stability of the anchor ring base during installation.

[0015] Preferably, the anchor ring bracket is composed of a Z-shaped bracket plate and wing plates; wing plates are fixed to both sides of the top plate of the Z-shaped bracket plate, and the Z-shaped bracket plate and wing plates are integrally formed; the projection weld nut and multiple positioning through slots are located on the top surface of the Z-shaped bracket plate.

[0016] As an intermediate load-bearing component, the anchor ring bracket transfers the load of the anchor ring base to the rear seat latch mounting plate. The connection welds between the anchor ring bracket and the rear seat latch mounting plate are located on the bottom end face and the wing plate of the Z-shaped bracket plate. The setting of multiple welds improves the fixing rigidity, enhances the structural resistance to deformation and fracture, and improves the load-bearing capacity.

[0017] Preferably, a reinforcing plate is installed on the inner side of the rear seat latch mounting plate, and the two are connected by three-layer welding.

[0018] The reinforcement plate can effectively increase the local strength of the mounting plate, and the three-layer welded connection is firm, preventing the rear seat latch mounting plate from tearing under stress and improving the rigidity of the body connection points.

[0019] Preferably, the anchor ring base has a wall thickness of ≥2.5mm and a material yield strength of ≥355MPa.

[0020] Preferably, the anchor ring support has a wall thickness of ≥2mm and a material yield strength of ≥340MPa.

[0021] Preferably, the wall thickness of the reinforcing plate is ≥1.8mm, and its material yield strength is ≥340MPa.

[0022] The anchor ring base has a wall thickness of at least 2.5 mm and is made of 45# steel or a material with higher yield strength to reduce test deformation; the anchor ring bracket has a wall thickness of at least 2 mm and is made of HC340 / 590DP or a material with higher yield strength; the reinforcing plate has a wall thickness of at least 1.8 mm and is made of HC340 / 590DP or a material with higher yield strength to reduce test deformation and weld failure.

[0023] Compared with the prior art, this application has the following advantages: The luggage net is attached to the pull ring, and the pulling force is transmitted to the pin shaft via a spline connection. The pin shaft transmits the force to the double-layer high-strength anchor ring base, and then to the anchor ring bracket through bolts and projection weld nuts. The anchor ring bracket transmits the load to the rear seat latch mounting plate. The inner reinforcing plate of the rear seat latch mounting plate is reinforced with three layers of welding to enhance tear resistance and rigidity. Finally, the load is transmitted to the rear wheel arch inner plate and diffused to the vehicle body through the rear seat latch mounting plate. Throughout the process, the pull ring can rotate freely with the pin shaft to adapt to the attachment angle. All components are connected with thickened high-strength materials and reliable welding / bolts to ensure that they do not deform or break under stress and that the welds do not fail, meeting the requirements of ISO27955:2010 regulations and achieving automotive export certification.

[0024] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram illustrating the overall relationship between an automotive anchor ring assembly and its body connection structure provided in this application; Figure 2 This is a schematic diagram of the anchor ring assembly provided in this application; Figure 3 This is a schematic diagram of the anchor ring assembly and body connection provided in this application; Figure 4 This is a schematic diagram of the reinforcing plate provided in this application.

[0027] Legend: 1. Pull ring; 2. Pin; 3. Anchor ring base; 4. Bolt; 5. Projection weld nut; 6. Anchor ring bracket; 7. Rear seat buckle mounting plate; 8. Rear wheel cover inner plate; 9. Reinforcing plate; 10. Positioning slot; 11. Positioning plate; 12. Z-shaped bracket plate; 13. Wing plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] like Figure 1 As shown, an automotive anchor ring assembly and its body connection structure include a pull ring 1, a pin 2, an anchor ring base 3, an anchor ring bracket 6, a rear seat latch mounting plate 7, and a rear wheel arch inner plate 8. The pull ring 1 is connected to the pin 2 via a first connecting mechanism, and the pin 2 is mounted on the anchor ring base 3. The anchor ring base 3 is connected to the anchor ring bracket 6 via a second connecting mechanism. The anchor ring bracket 6 is welded to the rear seat latch mounting plate 7. The rear seat latch mounting plate 7 is connected to the rear wheel arch inner plate 8 via weld points. The rear seat latch mounting plate 7 provides the mounting surface for the anchor ring bracket 6, serving as a load transition platform. It utilizes the original structure of the vehicle body, has a compact layout, and is easy to integrate and weld. Meanwhile, the rear wheel arch inner plate 8 serves as the main load-bearing base of the vehicle body, bearing and distributing the overall load. It can spread the tensile force to the large vehicle body, avoid single-point overload, and meet the strength requirements of export regulations.

[0030] like Figure 2 As shown, the first connecting mechanism includes an internal spline and an external spline; one end of the pull ring 1 is provided with an internal spline, and one end of the pin 2 is provided with an external spline. The pull ring 1 and the pin 2 are connected by the internal spline and the external spline. The spline structure enables precise transmission and fixation between the pull ring 1 and the pin 2, ensuring a firm and non-slip connection that is not easily loosened under stress, thus improving the transmission reliability of the pull ring 1.

[0031] like Figure 2 As shown, the anchor ring base 3 has a double-layer structure, and the side view of the anchor ring base 3 is a folded surface; the pin 2 passes through the double-layer anchor ring base 3 and can rotate relative to it; The anchor ring base 3 has a double-layer structure, which supports the pin 2 and provides rotation guidance. This effectively improves the structural strength of the anchor ring base 3, allows the pull ring 1 to rotate as needed, and is suitable for use at multiple angles of the luggage net. The small gap between the pin 2 and the anchor ring base 3 and the strong shear resistance ensure that the assembly does not loosen under repeated stress, thus improving the durability and safety performance of the assembly.

[0032] like Figure 3 As shown, the second connecting mechanism includes a bolt 4 and a projection weld nut 5; a projection weld nut 5 is welded to the middle of the anchor ring bracket 6; the anchor ring base 3 is connected to the anchor ring bracket 6 by the bolt 4 and the projection weld nut 5. The projection weld nut 5 provides accurate positioning and high connection strength; the bolt 4 is easy to assemble and facilitates after-sales disassembly and maintenance.

[0033] like Figure 3 As shown, the anchor ring bracket 6 has multiple positioning slots 10 in the middle; multiple positioning plates 11 are fixed to the periphery of the anchor ring base 3, and the anchor ring base 3 and the positioning plates 11 are integrally formed; the positions of the multiple positioning plates 11 and the multiple positioning slots 10 are corresponding. The positioning slot 10 and positioning plate 11 facilitate the initial insertion and positioning of the anchor ring base 3 on the anchor ring bracket 6, thereby facilitating the subsequent installation of the bolts 4 and preventing the anchor ring base 3 from rotating on the anchor ring bracket 6 during installation, thus ensuring the stability of the anchor ring base 3 during installation.

[0034] like Figure 3 As shown, the anchor ring bracket 6 is composed of a Z-shaped bracket plate 12 and a wing plate 13; the wing plate 13 is fixedly connected to both sides of the top plate of the Z-shaped bracket plate 12, and the Z-shaped bracket plate 12 and the wing plate 13 are integrally formed; the projection weld nut 5 and multiple positioning through slots 10 are all located on the top surface of the Z-shaped bracket plate 12. The anchor ring bracket 6 serves as an intermediate load-bearing component, transferring the load of the anchor ring base 3 to the rear seat latch mounting plate 7. The connection welds between the anchor ring bracket 6 and the rear seat latch mounting plate 7 are located on the bottom end face of the Z-shaped bracket plate 12 and the wing plate 13. The multiple welds improve the fixing rigidity, enhance the structure's resistance to deformation and fracture, and improve its load-bearing capacity.

[0035] like Figure 4 As shown, a reinforcing plate 9 is installed on the inner side of the rear seat latch mounting plate 7, and the two are connected by three-layer welding. The reinforcing plate 9 can effectively increase the local strength of the mounting plate, and the three-layer welded connection is firm, preventing the rear seat latch mounting plate 7 from tearing under stress and improving the rigidity of the body connection point.

[0036] The anchor ring base 3 has a wall thickness of ≥2.5mm and a material yield strength of ≥355MPa; The wall thickness of the anchor ring bracket 6 is ≥2mm, and its material yield strength is ≥340MPa; The wall thickness of the reinforcing plate 9 is ≥1.8mm, and its material yield strength is ≥340MPa; Among them, the wall thickness of the anchor ring base 3 is at least 2.5 mm, and the material grade is 45# steel or higher yield strength material to reduce test deformation; the wall thickness of the anchor ring bracket 6 is at least 2 mm, and the material grade is HC340 / 590DP or higher yield strength material; the wall thickness of the reinforcing plate 9 is at least 1.8 mm, and the material grade is HC340 / 590DP or higher yield strength material to reduce test deformation and weld failure.

[0037] This device first fits the pull ring 1 and the pin 2 with internal and external splines, then inserts the pin 2 into the double-layer anchor ring base 3 to form a rotatable anchor ring body. Subsequently, the projection weld nut 5 is welded to the anchor ring bracket 6, and the anchor ring base 3 and the anchor ring bracket 6 are fastened with bolts 4. The positioning plate 11 and the positioning through groove 10 are used to complete the alignment and anti-rotation. Next, the reinforcing plate 9 is fixed to the inside of the rear seat buckle mounting plate 7 with three layers of welding to enhance the structural strength. Then, the anchor ring bracket 6 is welded to the mounting plate. Finally, the whole assembly is welded and fixed to the inner plate 8 of the rear wheel arch, completing the entire assembly.

[0038] The luggage net is attached to the pull ring 1, and the pulling force is transmitted to the pin 2 via a spline connection. The pin 2 transmits the force to the double-layer high-strength anchor ring base 3, and then to the anchor ring bracket 6 via bolts 4 and projection weld nuts 5. The anchor ring bracket 6 transmits the load to the rear seat latch mounting plate 7. The inner reinforcing plate 9 of the rear seat latch mounting plate 7 is reinforced with three layers of welding to enhance tear resistance and rigidity. Finally, the load is transmitted to the rear wheel arch inner plate 8 via the rear seat latch mounting plate 7 and diffused to the vehicle body. Throughout the process, the pull ring 1 can rotate freely with the pin 2 to adapt to the attachment angle. All components are connected with thickened high-strength materials and reliable welding / bolts 4 to ensure that they do not deform or break under stress and that the welds do not fail, meeting the requirements of ISO27955:2010 regulations and achieving automotive export certification.

[0039] Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An automotive anchor ring assembly and its body connection structure, characterized in that: It includes a pull ring (1), a pin (2), an anchor ring base (3), an anchor ring bracket (6), a rear seat buckle mounting plate (7), and a rear wheel cover inner plate (8); the pull ring (1) is connected to the pin (2) through a first connecting mechanism, and the pin (2) is set on the anchor ring base (3); the anchor ring base (3) is connected to the anchor ring bracket (6) through a second connecting mechanism; the anchor ring bracket (6) is welded to the rear seat buckle mounting plate (7); the rear seat buckle mounting plate (7) is connected to the rear wheel cover inner plate (8) through welding points.

2. The automotive anchor ring assembly and its body connection structure according to claim 1, characterized in that: The first connecting mechanism includes an internal spline and an external spline; one end of the pull ring (1) is provided with an internal spline, and one end of the pin (2) is provided with an external spline. The pull ring (1) and the pin (2) are connected by the internal spline and the external spline.

3. The automotive anchor ring assembly and its body connection structure according to claim 1, characterized in that: The anchor ring base (3) has a double-layer structure, and the side view of the anchor ring base (3) is a folded surface; the pin (2) passes through the double-layer anchor ring base (3) and can rotate relative to it.

4. The automotive anchor ring assembly and its body connection structure according to claim 3, characterized in that: The second connecting mechanism includes a bolt (4) and a projection weld nut (5); the anchor ring bracket (6) is welded with a projection weld nut (5) in the middle; the anchor ring base (3) is connected to the anchor ring bracket (6) by the bolt (4) and the projection weld nut (5).

5. The automotive anchor ring assembly and its body connection structure according to claim 4, characterized in that: The anchor ring bracket (6) has multiple positioning slots (10) in the middle; multiple positioning plates (11) are fixed to the periphery of the anchor ring base (3), and the anchor ring base (3) and the positioning plates (11) are integrally formed; the positions of the multiple positioning plates (11) and the multiple positioning slots (10) correspond to each other.

6. The automotive anchor ring assembly and its body connection structure according to claim 5, characterized in that: The anchor ring bracket (6) is composed of a Z-shaped bracket plate (12) and a wing plate (13); the wing plate (13) is fixed to both sides of the top plate of the Z-shaped bracket plate (12), and the Z-shaped bracket plate (12) and the wing plate (13) are integrally formed; the projection weld nut (5) and multiple positioning through slots (10) are located on the top surface of the Z-shaped bracket plate (12).

7. The automotive anchor ring assembly and its body connection structure according to claim 1, characterized in that: The rear seat latch mounting plate (7) is fitted with a reinforcing plate (9) on its inner side, and the two are connected by three-layer welding.

8. The automotive anchor ring assembly and its body connection structure according to claim 1, characterized in that: The anchor ring base (3) has a wall thickness of ≥2.5mm and a material yield strength of ≥355MPa.

9. The automotive anchor ring assembly and its body connection structure according to claim 1, characterized in that: The anchor ring bracket (6) has a wall thickness of ≥2mm and a material yield strength of ≥340MPa.

10. The automotive anchor ring assembly and its body connection structure according to claim 7, characterized in that: The reinforcing plate (9) has a wall thickness of ≥1.8mm and a material yield strength of ≥340MPa.

Images