Cargo box assembly of vehicle and vehicle
By designing the rear tailgate and mounting components in the vehicle cargo box assembly, the problem of interference between the rear tailgate and the rear bumper was solved, improving the convenience and efficiency of cargo unloading.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 重庆长安凯程汽车科技有限公司
- Filing Date
- 2026-03-23
- Publication Date
- 2026-05-15
AI Technical Summary
The rear tailgate interferes with the rear bumper after it is opened, resulting in low efficiency in unloading goods. This is especially true when manually unloading goods, as it increases the operating distance and affects loading and unloading efficiency.
Design a cargo box assembly for a vehicle, including a cargo box body, a rear tailgate, and a mounting assembly. The rear tailgate moves between a locked position and a retracted position via the mounting assembly. When locked, the loading and unloading port is closed. When retracted, it is partially accommodated within the storage space, reducing the operating distance.
The folding design of the rear tailgate reduces the operating distance between the rear tailgate and the cargo box, improving the convenience and efficiency of unloading goods.
Smart Images

Figure CN122035148A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle technology, and more particularly to a cargo box assembly and a vehicle. Background Technology
[0002] In the field of logistics transportation and cargo distribution, the cargo box of commercial freight vehicles is the core component that carries goods, and its rational design is directly related to transportation efficiency, cargo safety and vehicle lifespan.
[0003] Currently, for cab-over light trucks and some mini-trucks that prioritize maximizing cargo box volume, there is interference between the rear tailgate and the rear bumper (or rear protective beam). Due to overall vehicle length limitations and the design requirement to maximize cargo box space, the longitudinal distance between the rear of the cargo box and the rear bumper is minimized. When users lower the tailgate for loading and unloading, the lower edge of the tailgate mechanically interferes with the upper surface of the relatively high and rearward rear bumper. This prevents the tailgate from naturally drooping to the ideal vertical position (i.e., 90 degrees to the horizontal), instead being held up by the bumper, creating an awkward tilt angle (typically 60 to 75 degrees to the horizontal). This tilted tailgate creates a certain operating distance between the handler or handling equipment and the cargo box. This operating distance is detrimental to manual forklift loading and unloading, resulting in low efficiency. Furthermore, when manually unloading, the tilted tailgate increases the distance between the handler and the cargo box, requiring the handler to extend their arms to place the goods into the cargo box. This serious issue will significantly impact the efficiency of unloading goods, and it urgently needs to be addressed. Summary of the Invention
[0004] This invention provides a cargo box assembly and a vehicle to solve the technical problem of interference between the rear tailgate and the rear bumper after the tailgate is flipped open, which reduces the efficiency of unloading cargo.
[0005] The present invention provides a cargo box assembly for a vehicle, including a cargo box body, a rear tailgate and a mounting assembly. The rear tailgate is movably configured relative to the cargo box body to open or close the loading and unloading port of the cargo box body. The mounting assembly is fixed in position relative to the cargo box body to constrain the movement trajectory of the rear tailgate.
[0006] The cargo box body includes a bottom plate, the upper side of which is used for loading goods, and the lower side of which is provided with a receiving space for at least partially accommodating the rear tailgate. The movement trajectory of the rear tailgate has a locking position and a retracted position relative to the cargo box body. The rear tailgate moves between the locking position and the retracted position via the mounting assembly. When the rear tailgate is in the locking position, the rear tailgate closes the loading and unloading port. When the rear tailgate is in the retracted position, the rear tailgate is at least partially located within the receiving space.
[0007] In one embodiment of the present invention, the mounting assembly includes a mounting bracket and a sliding member. The sliding member is at least partially disposed on the underside of the base plate via the mounting bracket. Along the height direction of the vehicle, there is a gap between the sliding member and the base plate of the cargo box to form the accommodating space. The sliding member has a sliding portion that slides along the length direction of the vehicle. The tailgate is rotatably disposed on the sliding portion, and the accommodating space is located on the sliding trajectory of the tailgate.
[0008] In one embodiment of the present invention, the sliding member further includes a slide rail, the sliding part is slidably disposed on the slide rail, and limit blocks are provided at both ends of the slide rail, and the sliding part reciprocates on the slide rail between the two limit blocks.
[0009] In one embodiment of the present invention, a fixing member is provided between the sliding part and the slide rail for fixing the relative position between the sliding part and the slide rail.
[0010] In one embodiment of the present invention, the rear tailgate has a width direction. When the rear tailgate is in the locked position, the width direction of the rear tailgate is perpendicular to the bottom plate. Along the width direction of the rear tailgate, one end of the rear tailgate is rotatably connected to the cargo box body.
[0011] In one embodiment of the present invention, the cargo box has wheel arches, and the tailgate has a width direction. When the tailgate is in the locked position, the width direction of the tailgate is perpendicular to the bottom plate, and the distance between the tailgate and the wheel arches along the length direction of the vehicle is greater than the dimension of the tailgate along the width direction of the tailgate.
[0012] In one embodiment of the present invention, the movement trajectory of the rear tailgate also has an unfolded position, which is located between the storage position and the locking position. When the rear tailgate is in the unfolded position, the rear tailgate is placed horizontally.
[0013] In one embodiment of the present invention, a pull rope is provided between the rear tailgate and the cargo box body, and the pull rope is taut when the rear tailgate is in the unfolded position.
[0014] In one embodiment of the present invention, the pull rope is detachably connected to the rear tailgate.
[0015] The present invention also provides a vehicle including the cargo box assembly of the vehicle as described above.
[0016] The beneficial effects of this invention are as follows: This invention provides a vehicle cargo box assembly and a vehicle in which the rear tailgate can move between a locked position and a retracted position via an installation component. When the rear tailgate is in the locked position, it seals the loading and unloading opening to meet cargo loading requirements. When the rear tailgate is in the retracted position, it is at least partially accommodated within the accommodating space. By retracting the rear tailgate to the underside of the cargo box floor, the operating distance between the rear tailgate and the cargo box after opening can be reduced, thereby improving the convenience and efficiency of unloading cargo from the cargo box. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.
[0018] In the attached diagram: Figure 1 This is a top view of a structure provided by an embodiment of the present invention, showing the rear tailgate portion stored under the cargo box floor. Figure 2 This is a schematic diagram of the rear tailgate in the locked position according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the rear tailgate in the unfolded position according to an embodiment of the present invention; Figure 4 This is a partially enlarged structural diagram of the rear tailgate in the unfolded position according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the lower side of the cargo box floor when the rear tailgate is in the unfolded position, according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of the lower side of the cargo box floor when the rear tailgate is located in the storage position, according to an embodiment of the present invention.
[0019] The attached diagram is labeled as follows: cargo box body 1, bottom plate 101, wheel arch 102, rear tailgate 2, hinge 3, hinge base 4, sliding part 5, slide rail 6, limit block 7, mounting bracket 8. Detailed Implementation
[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0022] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.
[0023] Please see Figure 1 An embodiment of the present invention provides a vehicle cargo box assembly, including a cargo box body 1, a rear tailgate 2, and a mounting assembly. The rear tailgate 2 is movably configured relative to the cargo box body 1 to open or close the loading / unloading port. The mounting assembly is fixed in position relative to the cargo box body 1 to constrain the movement trajectory of the rear tailgate 2. The cargo box body 1 includes a floor plate 101, the upper side of which is used for loading goods, and the lower side of which is provided with a receiving space for at least partially accommodating the rear tailgate 2. The movement trajectory of the rear tailgate 2 relative to the cargo box body 1 has a locked position and a retracted position. The rear tailgate 2 moves between the locked position and the retracted position via the mounting assembly. When the rear tailgate 2 is in the locked position, the loading / unloading port is closed. When the rear tailgate 2 is in the retracted position, the rear tailgate 2 is at least partially located within the receiving space. The rear tailgate 2 can move between the locked position and the retracted position via the mounting assembly. When the rear tailgate 2 is in the locked position, the loading / unloading port is closed to meet the requirements of cargo loading. When the tailgate 2 is in the stowed position, the tailgate 2 is at least partially accommodated within the accommodating space. By stowing the tailgate 2 under the bottom plate 101 of the cargo box body 1, the operating distance between the tailgate 2 and the cargo box body 1 after it is flipped open can be reduced, thereby improving the convenience and efficiency of unloading and loading goods onto the cargo box body 1.
[0024] In one exemplary embodiment, the mounting assembly includes a mounting bracket 8 and a sliding member. The sliding member is at least partially mounted on the underside of the base plate 101 via the mounting bracket 8. A gap exists between the sliding member and the base plate 101 of the cargo box body 1 along the height direction of the vehicle to form a receiving space. The sliding member has a sliding portion 5 that slides along the length direction of the vehicle. The tailgate 2 is rotatably mounted on the sliding portion 5, and the receiving space is located on the sliding trajectory of the tailgate 2. After the tailgate 2 rotates out of the locked position, it slides into the receiving space through the sliding portion 5, thus achieving the folding of the tailgate 2. This can, to a certain extent, prevent the tailgate 2 from interfering with the normal unloading and loading operation of the cargo box body 1, thereby improving the efficiency of unloading and loading the cargo box body 1. In this embodiment, the sliding member includes a slide rail 6 and a sliding portion 5 slidably mounted on the slide rail 6. The sliding portion 5 is a ball bearing guide sliding portion. Both the slide rail 6 and the sliding portion 5 are made of high-precision / critical load-bearing grade aerospace aluminum alloy, so that the slide rail 6 and the sliding portion 5 can withstand greater forces when they cooperate. Meanwhile, the mounting bracket 8 is provided with multiple reinforcing ribs to enhance its rigidity and strength, thereby ensuring the safety and practicality of the tailgate 2. The aforementioned slide rail 6 extends along the length of the vehicle. In some embodiments, the sliding component may be a slide platform or the like. The type of sliding component can be adjusted according to actual needs. In this embodiment, the mounting assembly is mounted on the cargo box body 1. In another exemplary embodiment, the mounting assembly and the cargo box body 1 may be mounted on the vehicle frame respectively.
[0025] In an exemplary embodiment, the sliding member includes a slide rail 6, a sliding part 5 slidably disposed on the slide rail 6, and limit blocks 7 provided at both ends of the slide rail 6. The sliding part 5 reciprocates on the slide rail 6 between the two limit blocks 7. By providing the limit blocks 7, the sliding part 5 on the slide rail 6 can be prevented from detaching from the slide rail 6, thus preventing a safety accident. The provision of limit blocks 7 improves the safety and convenience of the vehicle's cargo box assembly during use. In this embodiment, a hinge base 4 is provided on the sliding block, and a hinge 3 is provided on the rear tailgate 2. The hinge 3 is rotatably mounted on the hinge base 4 by a movable bolt.
[0026] In one exemplary embodiment, a fixing member is provided between the sliding part 5 and the slide rail 6 to fix the relative position between the sliding part 5 and the slide rail 6. By providing the fixing member, the fixing member can be unlocked after the tailgate 2 is fully opened, thus preventing the sliding part 5 from sliding on the slide rail 6 during the opening or closing of the tailgate 2, which would affect the operation of the handling personnel in opening or closing the tailgate 2. This improves the smoothness and user-friendliness of the vehicle's cargo box assembly during use. In this embodiment, the fixing member is a fixing bolt provided on the sliding part 5. When the fixing bolt and the sliding part 5 cooperate to clamp the slide rail 6, the relative position between the slide rail 6 and the sliding part 5 is fixed.
[0027] In one exemplary embodiment, the tailgate has a width direction. When the tailgate is in the locked position, the width direction of the tailgate is perpendicular to the floor. Along the width direction of the tailgate, one end of the tailgate is rotatably connected to the cargo box body. With the same tailgate width, the rotatable connection of one end of the tailgate to the cargo box body can increase the area of the tailgate's closed loading and unloading opening in the height direction of the vehicle, thereby increasing the volume of cargo loaded into the cargo box body.
[0028] In an exemplary embodiment, the cargo box body 1 has wheel arches 102, and the distance between the tailgate 2 and the wheel arches 102 along the length direction of the vehicle is greater than the dimension of the tailgate 2 along the width direction. This avoids the position of the wheel arches 102 of the cargo box body 1 from affecting the folding of the tailgate 2, thereby providing more sufficient storage space for the tailgate 2.
[0029] In one exemplary embodiment, the tailgate 2 also has an unfolded position relative to the cargo box body 1. The unfolded position is located between the stowed position and the locked position. When the tailgate 2 is in the unfolded position, the tailgate 2 is placed horizontally. By providing the unfolded position, the area of the bottom plate 101 of the cargo box body 1 can be expanded, thereby facilitating the carrying of longer and more goods to meet the vehicle's cargo box assembly's requirements for transporting large-sized goods.
[0030] In one exemplary embodiment, a pull rope is provided between the tailgate 2 and the cargo box body 1. When the tailgate 2 is in the unfolded position, the pull rope is taut. By providing the pull rope, some of the stress at the rotational connection between the tailgate 2 and the sliding part 5 can be distributed, thereby improving the stability and safety of the tailgate 2 in the unfolded position.
[0031] In this embodiment, one end of the pull rope is fixedly mounted on the cargo box body 1, and the other end of the pull rope is detachably connected to the rear tailgate 2, so as to avoid interference between the pull rope and the cargo box body 1 when the rear tailgate 2 is stored, thus affecting the storage of the rear tailgate 2.
[0032] An embodiment of the present invention also provides a vehicle including the cargo box assembly of the vehicle as described above.
[0033] In summary, the rear tailgate 2 can move between a locked position and a retracted position via an installation component. When the rear tailgate 2 is in the locked position, the loading and unloading port is closed to meet the requirements for cargo loading. When the rear tailgate 2 is in the retracted position, the rear tailgate 2 is at least partially accommodated within the accommodating space. By retracting the rear tailgate 2 to the underside of the bottom plate 101 of the cargo box body 1, the operating distance formed between the rear tailgate 2 and the cargo box body 1 after opening is reduced, thereby improving the convenience and efficiency of unloading cargo from the cargo box body 1.
[0034] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A cargo box assembly for a vehicle, characterized in that, It includes a cargo box body, a rear tailgate, and a mounting assembly. The rear tailgate is movable relative to the cargo box body to open or close the loading and unloading port of the cargo box body. The mounting assembly is fixed relative to the cargo box body to constrain the movement trajectory of the rear tailgate. The cargo box body includes a bottom plate, the upper side of which is used for loading goods, and the lower side of which is provided with a receiving space for at least partially accommodating the rear tailgate. The movement trajectory of the rear tailgate has a locking position and a retracted position relative to the cargo box body. The rear tailgate moves between the locking position and the retracted position via the mounting assembly. When the rear tailgate is in the locking position, the rear tailgate closes the loading and unloading port. When the rear tailgate is in the retracted position, the rear tailgate is at least partially located within the receiving space.
2. The cargo box assembly of the vehicle according to claim 1, characterized in that: The mounting assembly includes a mounting bracket and a sliding member. The sliding member is at least partially disposed on the underside of the floor plate via the mounting bracket along the height direction of the vehicle. There is a gap between the sliding member and the floor plate of the cargo box to form the accommodating space. The sliding member has a sliding portion that slides along the length direction of the vehicle. The tailgate is rotatably disposed on the sliding portion, and the accommodating space is located on the sliding trajectory of the tailgate.
3. The cargo box assembly of the vehicle according to claim 2, characterized in that: The sliding component also includes a slide rail, and the sliding part is slidably disposed on the slide rail. Both ends of the slide rail are provided with limit blocks, and the sliding part reciprocates on the slide rail between the two limit blocks.
4. The cargo box assembly of the vehicle according to claim 3, characterized in that: A fixing member is provided between the sliding part and the slide rail to fix the relative position between the sliding part and the slide rail.
5. The cargo box assembly of the vehicle according to claim 1, characterized in that: The rear tailgate has a width direction. When the rear tailgate is in the locked position, the width direction of the rear tailgate is perpendicular to the bottom plate. Along the width direction of the rear tailgate, one end of the rear tailgate is rotatably connected to the cargo box body.
6. The cargo box assembly of the vehicle according to claim 1, characterized in that: The cargo box has wheel arches, and the tailgate has a width direction. When the tailgate is in the locked position, the width direction of the tailgate is perpendicular to the floor plate. The distance between the tailgate and the wheel arches along the length direction of the vehicle is greater than the dimension of the tailgate along the width direction of the tailgate.
7. The cargo box assembly of the vehicle according to claim 1, characterized in that: The movement trajectory of the rear tailgate also has an unfolded position, which is located between the storage position and the locking position. When the rear tailgate is in the unfolded position, the rear tailgate is placed horizontally.
8. The cargo box assembly of the vehicle according to claim 7, characterized in that: A pull rope is provided between the rear tailgate and the cargo box body. When the rear tailgate is in the unfolded position, the pull rope is taut.
9. The cargo box assembly of the vehicle according to claim 8, characterized in that: The pull rope is detachably connected to the rear tailgate.
10. A vehicle, characterized in that, Includes the cargo box assembly of the vehicle as described in any one of claims 1-9.