Rear frame assembly, cargo box assembly and vehicle

Abstract

The embodiment of the application discloses a truck box rear frame assembly, a truck box assembly and a vehicle, the truck box rear frame assembly is applied to a pickup truck box, the truck box rear frame assembly comprises a cross beam assembly and two column assemblies, the cross beam assembly comprises a cross beam body and two first screw plates arranged at two ends of the cross beam body; each column assembly comprises a column body and a second screw plate connected with the column body, and the two second screw plates are respectively attached to and fixed with the two first screw plates by screwing. The cross beam assembly and the column assembly of the truck box rear frame assembly are fixed by screwing, compared with welding, the cross beam assembly and the column assembly fixed by screwing will not be deformed due to heat, so that the precision of the opening size of the truck box rear frame can be improved.

Description

Technical Field

[0001] This application relates to the field of rear frame assembly for cargo boxes, and more particularly to a rear frame assembly for cargo boxes, a cargo box assembly, and a vehicle. Background Technology

[0002] In related technologies, SMC (Sheet Moulding Compounds) is used as the raw material for the vehicle body to improve its corrosion resistance and reduce its weight. In some products, the rear of the SMC inner panel of the vehicle body is installed based on the rear frame assembly of the vehicle body. Therefore, the dimensional accuracy requirements for the opening of the rear frame are relatively high. The existing sheet metal welded assembly rear frame structure cannot meet the opening accuracy requirements. Summary of the Invention

[0003] This application provides a rear frame assembly for a cargo box, a cargo box assembly, and a vehicle, which can improve the technical problem of low dimensional accuracy of the rear frame opening.

[0004] In a first aspect, embodiments of this application provide a rear frame assembly for a pickup truck bed. The rear frame assembly includes a crossbeam assembly and two column assemblies. The crossbeam assembly includes a crossbeam body and two first threaded plates disposed at both ends of the crossbeam body. Each column assembly includes a column body and a second threaded plate connected to the column body. The two second threaded plates are respectively attached to and screwed to the two first threaded plates.

[0005] In some exemplary embodiments, the first screw plate includes a first plate, a second plate, and a third plate connected in sequence. The second plate is perpendicular to the first plate and the third plate. The first plate and the third plate are located on the same side of the second plate and are opposite to each other. The first plate, the second plate, and the third plate are all in contact with the second screw plate.

[0006] In some exemplary embodiments, the first threaded plate is integrally stamped with the crossbeam body, the first plate and the second plate of the first threaded plate are inclined towards each other so that the first threaded plate is narrowed relative to the crossbeam body, the second threaded plate covers the first threaded plate, and the surface of the second threaded plate facing away from the first threaded plate is flush with the outer surface of the crossbeam body.

[0007] In some exemplary embodiments, the surface of the first screw plate opposite to the second screw plate is provided with a plurality of projection weld nuts. Among the plurality of projection weld nuts, three projection weld nuts are grouped together and distributed in a triangular pattern. The second screw plate is provided with a plurality of screw holes, and the plurality of screw holes correspond one-to-one with the plurality of projection weld nuts.

[0008] In some exemplary embodiments, the crossbeam body includes a fourth plate, a fifth plate, a sixth plate, and a seventh plate. The fourth plate, the fifth plate, and the sixth plate are connected in sequence. The fourth plate is flush with and integrally formed with the first plate. The fifth plate is flush with and integrally formed with the second plate. The sixth plate is flush with and integrally formed with the third plate. The two ends of the seventh plate are respectively connected to the fourth plate and the sixth plate. The seventh plate is disposed opposite to the fifth plate.

[0009] In some exemplary embodiments, the column body includes: a first concave plate, the edge of which is provided with a first flange; and a second concave plate, the edge of which is provided with a second flange, the opening of the first concave plate being opposite to the opening of the second concave plate, and the first flange and the second flange being fitted and fixed together.

[0010] In some exemplary embodiments, the column body further includes: a first connector connected to the first concave plate and the second screw plate; and a second connector connected to the second concave plate and the second screw plate, wherein the second connector is connected to the first connector.

[0011] In some exemplary embodiments, the first flange and the second flange are provided with a plurality of connecting holes on the side facing the front of the vehicle, the connecting holes being used to connect the side panels of the cargo box.

[0012] Secondly, embodiments of this application provide a cargo box assembly including: a floor plate; side plates connected to the floor plate; and a rear frame assembly of the cargo box as described in any of the above embodiments, wherein the floor plate is connected to the crossbeam assembly, and the side plates are connected to the column assembly.

[0013] Thirdly, embodiments of this application provide a vehicle, including: a cargo box assembly as described in the above embodiments; and a frame, wherein the cargo box body is disposed on the frame.

[0014] Beneficial effects: In the embodiments of this application, the crossbeam assembly and the column assembly of the rear frame assembly of the vehicle body are fixed by screw connection. Compared with welding, the crossbeam assembly and the column assembly fixed by screw connection will not deform due to heat, thereby improving the accuracy of the opening size of the rear frame of the vehicle body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in 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.

[0016] Figure 1This is a schematic diagram of the rear frame assembly of the vehicle body in one embodiment of this application;

[0017] Figure 2 This is an exploded structural diagram of the rear frame assembly of the vehicle body in one embodiment of this application;

[0018] Figure 3 This is an enlarged structural schematic diagram of the first screw plate in one embodiment of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the column assembly in one embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of the beam assembly in one embodiment of this application;

[0021] Figure 6 This is a schematic diagram of the rear frame assembly of the vehicle body in another embodiment of this application;

[0022] Figure 7 This is a partial structural schematic diagram of the rear frame assembly of the vehicle body in one embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the structure of the second screw plate in one embodiment of this application;

[0024] Figure 9 This is a schematic diagram of the structure of the first connector in one embodiment of this application;

[0025] Figure 10 This is a schematic diagram of the connection between the first connector and the second screw plate in one embodiment of this application;

[0026] Figure 11 This is a schematic diagram of the connection between the first connector, the second connector, and the second screw plate in one embodiment of this application;

[0027] Figure 12 This is a partial structural schematic diagram of the column assembly in one embodiment of this application;

[0028] Figure 13 This is a partial structural schematic diagram of the column assembly in another embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 100, Rear frame assembly of the vehicle body; 110, Crossbeam assembly; 111, Crossbeam body; 1111, Fourth plate; 1112, Fifth plate; 1113, Sixth plate; 1114, Seventh plate; 112, First bolt plate; 1121, First plate; 1122, Second plate; 1123, Third plate; 113, Projection weld nut; 120, Column assembly; 121, Column body; 1211, First concave plate; 1212, First flange; 1213, Second concave plate; 1214, Second flange; 1215, First connector; 1216, Second connector; 121a, Connecting hole; 122, Second bolt plate; 122a, Screw hole. Detailed Implementation

[0030] To make the objectives, technical solutions, 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.

[0031] In related technologies, the uprights and crossbeams of the vehicle body are connected by welding. Due to the thermal stress between the uprights and crossbeams during welding, the uprights and crossbeams may experience instantaneous deformation or residual deformation during welding, resulting in low dimensional accuracy of the rear frame opening of the vehicle body, which cannot meet the assembly requirements of the vehicle body.

[0032] like Figure 1 and Figure 2 As shown, a first aspect of this application provides a rear frame assembly 100 for a pickup truck bed. The rear frame assembly 100 includes a crossbeam assembly 110 and two pillar assemblies 120. The two pillar assemblies 120 are typically located at both ends of the crossbeam assembly 110, and the opening in the rear frame is the distance between the two pillar assemblies 120.

[0033] The crossbeam assembly 110 is typically located at the bottom of the cargo box to support the bottom plate of the cargo box. The crossbeam assembly 110 includes a crossbeam body 111 and two first bolted plates 112 located at both ends of the crossbeam body 111. The upright assembly 120 is typically located at the rear of the cargo box to support the side plates of the cargo box. To reduce the weight of the rear frame assembly 100 of the cargo box, both the crossbeam body 111 and the upright body 121 can be hollow structures.

[0034] Each column assembly 120 includes a column body 121 and a second threaded plate 122 connected to the column body 121. The two second threaded plates 122 are respectively attached to and threadedly fixed to the two first threaded plates 112. In order to improve the accuracy of the rear frame opening of the vehicle body, the crossbeam assembly 110 and the column assembly 120 can be fixed by a jig during assembly.

[0035] In summary, in this embodiment of the present application, the crossbeam assembly 110 and the column assembly 120 of the rear frame assembly 100 of the vehicle body are fixed by screw connection. Compared with welding, the crossbeam assembly 110 and the column assembly 120 are fixed by screw connection and will not deform due to heat, thereby improving the accuracy of the opening size of the rear frame of the vehicle body.

[0036] In addition, the connection strength between the beam assembly 110 and the column assembly 120 can be adjusted by adjusting the torque of the screws, whereas welding makes it difficult to control the connection strength between the two.

[0037] like Figure 3 and Figure 4 As shown, in some embodiments, the first screw plate 112 includes a first plate 1121, a second plate 1122, and a third plate 1123 connected in sequence. The second plate 1122 is set at an angle to the first plate 1121 and the third plate 1123. The angle between the second plate 1122 and the first plate 1121 and the third plate 1123 can be an acute angle, a right angle, or an obtuse angle. The second plate 1122 has two opposite sides in the thickness direction. The first plate 1121 and the third plate 1123 are both located on the same side of the second plate 1122 and are arranged opposite to each other. The first plate 1121, the second plate 1122, and the third plate 1123 are all in contact with the second screw plate 122.

[0038] That is, the first screw plate 112 is shaped like a U-shaped plate, and the second screw plate 122 is fitted to the first screw plate 112, so the second screw plate 122 is also shaped like a U-shaped plate. Thus, the three surfaces of the first screw plate 112 and the three surfaces of the second screw plate 122 are connected, fitted, and screwed together, thereby improving the connection strength between the beam assembly 110 and the column assembly 120. It should be noted that the U-shaped plate in this embodiment should be understood as a tubular structure with an opening along the length of the beam assembly 110. In some alternative structures, two surfaces of the first screw plate 112 are screwed together with two surfaces of the second screw plate 122.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the first threaded plate 112 is integrally stamped with the crossbeam body 111 to improve the production efficiency of the crossbeam assembly 110. In some alternative structures, the first threaded plate 112 and the crossbeam body 111 can also be welded or threaded together. The crossbeam body 111 can be a flat plate, an L-shaped plate, a U-shaped plate, etc. It should be noted that, due to the production characteristics of stamped parts, the surface of stamped parts is often undulating, that is, the surface of the crossbeam assembly 110 is often not a flat plate, but has multiple protrusions. Therefore, the description of shape in the embodiments of this application refers to the approximate outline shape.

[0040] The first threaded plate 112 is recessed relative to the crossbeam body 111. Recessing is a stamping process that reduces the size of the open end of a hollow or tubular part by applying pressure. Specifically, the first threaded plate 112 is reduced in size relative to the crossbeam body 111. The first plate 1121 and the third plate 1123 are tilted towards each other, reducing the distance between them. Due to the plastic deformation of the first threaded plate 112 during the recessing process, the connection between the first threaded plate 112 and the crossbeam body 111 undergoes work hardening, thereby increasing the hardness of the connection between the first threaded plate 112 and the crossbeam body 111.

[0041] The second threaded plate 122 covers the first threaded plate 112, and the surface of the second threaded plate 122 facing away from the first threaded plate 112 is flush with the outer surface of the crossbeam body 111. That is, the outer dimensions of the second threaded plate 122 are larger than those of the first threaded plate 112, and the outer dimensions of the second threaded plate 122 are approximately the same as those of the crossbeam body 111. This allows the second threaded plate 122 to be considered as an extension of the crossbeam body 111 after the crossbeam assembly 110 and the column assembly 120 are assembled. The second threaded plate 122 and the crossbeam body 111 are connected to the bottom plate of the cargo box. Therefore, the transition between the second threaded plate 122 and the crossbeam body 111 should be as smooth as possible to improve the overall fit between the second threaded plate 122 and the crossbeam body 111 and the bottom plate of the cargo box, thereby making the stress on the second threaded plate 122 and the crossbeam body 111 more even.

[0042] like Figure 3 and Figure 4 As shown, in some embodiments, the surface of the first screw plate 112 facing away from the second screw plate 122 is provided with a plurality of projection weld nuts 113. The projection weld nuts 113 are provided because the current at the welding point is more concentrated, so a welded component with small deformation can be obtained, thereby improving the assembly accuracy of the beam assembly 110 and the column assembly 120.

[0043] In the plurality of projection weld nuts 113, every three projection weld nuts 113 are arranged in a triangular distribution. The triangular force distribution is more stable, thus improving the stability of the connection between the beam assembly 110 and the column assembly 120. The second screw plate 122 is provided with a plurality of screw holes 122a, which correspond one-to-one with the plurality of projection weld nuts 113. That is, in the plurality of screw holes 122a, every three screw holes 122a are arranged in a triangular distribution. Screws pass through the screw holes 122a and are screwed into the projection weld nuts 113 to fix the first screw plate 112 and the second screw plate 122.

[0044] like Figure 5 and Figure 6As shown, in some embodiments, the crossbeam body 111 includes a fourth plate 1111, a fifth plate 1112, a sixth plate 1113, and a seventh plate 1114. The fourth plate 1111, fifth plate 1112, and sixth plate 1113 are connected sequentially. The crossbeam body 111 is in the shape of a channel-shaped steel structure. In actual production, the fourth plate 1111, fifth plate 1112, and sixth plate 1113 can be integrally stamped, that is, the fourth plate 1111, fifth plate 1112, and sixth plate 1113 together form a U-shaped plate, thereby saving processes and improving production efficiency. The seventh plate 1114 is stamped separately, and then the seventh plate 1114 is welded between the fourth plate 1111 and the sixth plate 1113. The seventh plate 1114 is arranged opposite to the fifth plate 1112. Of course, the edge of the seventh plate 1114 can also be provided with a flange to facilitate welding. By setting the seventh plate 1114, the overall rigidity of the crossbeam body 111 can be improved, making the crossbeam body 111 less prone to deformation, and ensuring that the opening size of the rear frame of the vehicle body meets the design requirements.

[0045] The fourth plate 1111 is flush with and integrally formed with the first plate 1121; the fifth plate 1112 is flush with and integrally formed with the second plate 1122; the sixth plate 1113 is flush with and integrally formed with the third plate 1123; and the two ends of the seventh plate 1114 are connected to the fourth plate 1111 and the sixth plate 1113 respectively. Thus, the first plate 1121, the second plate 1122, the third plate 1123, the fourth plate 1111, the fifth plate 1112, and the sixth plate 1113 are integrally formed, and can be stamped into shape, thereby further saving processes and improving production efficiency.

[0046] like Figure 4 As shown, in some embodiments, the column body 121 includes a first concave plate 1211 and a second concave plate 1213. The openings of the first concave plate 1211 and the second concave plate 1213 are opposite to each other, and the first concave plate 1211 and the second concave plate 1213 enclose each other to form a column. The edge of the second concave plate 1213 is provided with a second flange 1214, and the edge of the first concave plate 1211 is provided with a first flange 1212. Both the first flange 1212 and the second flange 1214 are perpendicular to the crossbeam assembly 110. The first flange 1212 and the second flange 1214 are fitted and fixed together, that is, the first concave plate 1211 and the second concave plate 1213 are fixedly connected by the first flange 1212 and the second flange 1214. Specifically, the first flange 1212 and the second flange 1214 can be fixed by welding. The first concave plate 1211 and the first flange 1212 can be integrally stamped, and the second concave plate 1213 and the second flange 1214 can be integrally stamped, thereby improving the production efficiency of the column body 121.

[0047] like Figures 7-13As shown, in some embodiments, the column body 121 further includes a first connector 1215 and a second connector 1216. The first connector 1215 is connected to the first concave plate 1211 and the second screw plate 122, and the second connector 1216 is connected to the second concave plate 1213 and the second screw plate 122. The second connector 1216 is connected to the first connector 1215. Generally, the first concave plate 1211 and the second concave plate 1213 are arranged longitudinally, and the second threaded plate 122 and the first threaded plate 112 are arranged transversely. To improve the connection strength between the first concave plate 1211 and the second concave plate 1213 and the second threaded plate 122, a first connector 1215 and a second connector 1216 are provided. The shape of the first connector 1215 is determined by the shape of the first concave plate 1211 and the second threaded plate 122, and the shape of the second connector 1216 is determined by the shape of the second concave plate 1213 and the second threaded plate 122. The first connector 1215 and the second connector 1216 can be irregularly shaped parts. For example... Figure 12 As shown, a portion of the surface of the first connector 1215 is adhered to and fixed to the surface of the second threaded plate 122, and another portion of the surface of the first connector 1215 is adhered to and fixed to the surface of the first concave plate 1211, thereby improving the connection strength between the first concave plate 1211 and the second threaded plate 122. Specifically, the connection method between the first connector 1215, the second threaded plate 122, and the first concave plate 1211 can be welding. Figure 13 As shown, a portion of the surface of the second connector 1216 is adhered to and fixed to the surface of the second threaded plate 122, and another portion of the surface of the second connector 1216 is adhered to and fixed to the surface of the second concave plate 1213, thereby improving the connection strength between the second concave plate 1213 and the second threaded plate 122. Specifically, the connection method between the second connector 1216, the second threaded plate 122, and the second concave plate 1213 can be welding. Additionally, as... Figure 11 As shown, the first connector 1215 and the second connector 1216 are connected, which can enhance their connection strength and thus improve the integrity of the column body 121.

[0048] like Figure 6 , Figure 12 and Figure 13 As shown, in some embodiments, the first flange 1212 and the second flange 1214 are provided with a plurality of connecting holes 121a on the side facing the front of the vehicle. The connecting holes 121a are used to connect the side panels of the cargo box. The first flange 1212 and the second flange 1214 can not only connect the first concave plate 1211 and the second concave plate 1213, but also be screwed to the side panels of the cargo box, thus eliminating the need for a separate connecting plate and simplifying the assembly and production processes.

[0049] A second aspect of this application provides a cargo box assembly, which includes a floor plate, side plates, and a rear frame assembly 100 as described in any of the above embodiments. The side plates are connected to the floor plate, the floor plate is connected to a crossbeam assembly 110, and the side plates are connected to a column assembly 120. The floor plate and side plates may be made of SMC material, thereby reducing the weight of the cargo box and improving its corrosion resistance.

[0050] A third aspect of this application provides a vehicle including the aforementioned cargo box assembly and frame, with the cargo box assembly disposed on the frame. Specifically, the vehicle type can be a pickup truck or a light commercial vehicle.

[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rear frame assembly for a vehicle body, characterized in that, A vehicle body made of sheet molding material, the rear frame assembly of the vehicle body includes: A crossbeam assembly includes a crossbeam body and two first threaded plates disposed at both ends of the crossbeam body. Each first threaded plate includes a first plate, a second plate, and a third plate connected in sequence. The second plate is perpendicular to both the first plate and the third plate. The first plate and the third plate are located on the same side of the second plate, and the first plate and the third plate are disposed opposite to each other. Two column assemblies, each column assembly includes a column body and a second screw plate connected to the column body, and the first plate, the second plate and the third plate are all attached to and screwed to the corresponding second screw plate, and the connection strength between the beam assembly and the column assembly is adjusted by adjusting the torque of the screw. The column body includes: A first concave plate, the edge of which is provided with a first flange; The second concave plate has a second flange on its edge. The opening of the first concave plate is opposite to the opening of the second concave plate, and the first flange and the second flange are fitted and fixed together. The first concave plate and the second concave plate enclose each other to form the column body. Both the first flange and the second flange are perpendicular to the beam assembly. A first connector is connected to the first concave plate and the second screw plate, and the shape of the first connector corresponds to the shape of the first concave plate and the second screw plate. The second connector is connected to the second concave plate and the second screw plate, and the second connector is connected to the first connector. The shape of the second connector corresponds to the shape of the second concave plate and the second screw plate.

2. The rear frame assembly of the vehicle body according to claim 1, characterized in that, The first threaded plate is integrally stamped with the crossbeam body. The first plate and the second plate of the first threaded plate are inclined towards each other so that the first threaded plate is narrowed relative to the crossbeam body. The second threaded plate covers the first threaded plate, and the surface of the second threaded plate facing away from the first threaded plate is flush with the outer surface of the crossbeam body.

3. The rear frame assembly of the vehicle body according to claim 2, characterized in that, The first screw plate has a plurality of projection weld nuts on its surface opposite to the second screw plate. Among the plurality of projection weld nuts, three projection weld nuts are grouped together and distributed in a triangular pattern. The second screw plate has a plurality of screw holes, and the plurality of screw holes correspond one-to-one with the plurality of projection weld nuts.

4. The rear frame assembly of the vehicle body according to claim 1, characterized in that, The crossbeam body includes a fourth plate, a fifth plate, a sixth plate, and a seventh plate. The fourth plate, the fifth plate, and the sixth plate are connected in sequence. The fourth plate is flush with the first plate and integrally formed with it. The fifth plate is flush with the second plate and integrally formed with it. The sixth plate is flush with the third plate and integrally formed with it. The two ends of the seventh plate are respectively connected to the fourth plate and the sixth plate. The seventh plate is arranged opposite to the fifth plate.

5. The rear frame assembly of the vehicle body according to claim 1, characterized in that, The first flange and the second flange have multiple connecting holes on the side facing the front of the vehicle. The connecting holes are used to connect the side panels of the cargo box.

6. A cargo box assembly, characterized in that, include: Base plate; Side plate, connected to the bottom plate; and The rear frame assembly of the vehicle body as described in any one of claims 1-5, wherein the bottom plate is connected to the crossbeam assembly, and the side plate is connected to the column assembly.

7. A vehicle, characterized in that, include: The cargo box assembly as described in claim 6; and The vehicle frame, on which the cargo box assembly is mounted.

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