A rail structure attached to a pickup truck bed

Abstract

The utility model discloses a guide rail structure attached in the tail box of pick-up truck relates to the technical field of automotive parts, including guide rail, with first vertical part, second vertical part is set up to each other parallel or close to parallel and interval opposite with first vertical part, first extension, from the side of first vertical part to the direction of close to second vertical part horizontal extension or along non - straight line path extension, and with second vertical part intersection, second extension, from the side of first vertical part along non - straight line path or horizontal to close to the direction of second vertical part extension, and with second vertical part intersection, through set up first extension and second extension along first vertical part extension direction interval distribution, and with first vertical part, second vertical part together enclose and form water guide chamber, utilize the horizontal / non - straight line path extension of first extension and the non - straight line / horizontal path extension of second extension's cooperation arrangement, effectively enlarged the volume of water guide chamber, has promoted liquid collection and guide ability.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a guide rail structure attached to the rear cargo box of a pickup truck. Background Technology

[0002] As a key component for expanding the functionality of the pickup truck tailgate, the guide rail structure must simultaneously meet the complex requirements of tailgate cover installation and auxiliary water guidance. In existing technologies, the guide rail body is usually formed by a single, simple structure to create a water guiding space for liquid collection and guidance. However, this has the following drawbacks: First, the volume of the water guiding space is limited by a single extension path, resulting in a fixed layout and poor expandability, leading to low liquid collection efficiency and easy liquid stagnation in the tailgate, affecting the safety of cargo storage and the corrosion resistance of metal components. Second, the connection form between the connecting and supporting structures is simple, limiting the three-dimensional layout of the water guiding space. Furthermore, insufficient structural support strength can cause deformation of the guide rail under load, further compressing the effective volume of the water guiding space and reducing the reliability of the water guiding function. Third, there is insufficient compatibility between structural stability and water guiding function. In traditional designs, increasing the water guiding volume often sacrifices the strength of the connecting structure, or compresses the water guiding space to enhance stability, making it difficult to achieve both simultaneously. Summary of the Invention

[0003] The present invention provides a guide rail structure attached to the rear cargo box of a pickup truck, which at least solves the technical problems of insufficient water-guiding chamber volume, limited space expansion due to the single layout of the extension structure, and insufficient structural stability and compatibility with water-guiding function in the existing guide rail structures for pickup truck rear cargo boxes.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: A guide rail structure for attachment to the tailgate of a pickup truck includes a guide rail having: First vertical section; The second vertical part is parallel or nearly parallel to the first vertical part and is arranged at intervals relative to each other; The first extension extends from the side of the first vertical portion along a non-linear path or horizontally toward the second vertical portion and intersects with the second vertical portion. The second extension extends from the side of the first vertical portion along a non-linear path or horizontally toward the second vertical portion and intersects with the second vertical portion. The first extension and the second extension are spaced apart along the extension direction of the first vertical part, and the first vertical part, the second vertical part, the first extension, and the second extension together form a water guiding chamber.

[0005] Furthermore, the second extension has a horizontal section extending horizontally from the side of the first vertical section, a first guide section extending from the end of the horizontal section toward the first extension, and a second guide section extending from the end of the first guide section toward the second vertical section.

[0006] Furthermore, an extension portion is formed by extending from the first extension portion in a direction away from the second extension portion; The enclosure section extends from the second vertical section toward the direction of the extension section; The enclosure and the extension are arranged parallel to each other and spaced apart. The first extension, the extension, the enclosure, and the second vertical part together enclose a water collection chamber with an opening. The opening is formed between the extension and the enclosure. There is at least one channel for fluid to pass through between the water collection chamber and the water guiding chamber.

[0007] Furthermore, the end of the guide rail is provided with a sealing member, which has a sealing part adapted to the internal contour of the guide rail and is inserted into the inside of the guide rail to seal the water guiding chamber of the guide rail.

[0008] Furthermore, the end of the guide rail is provided with a guide member, which has a sealing part and a drainage part communicating with the sealing part.

[0009] Furthermore, a bent portion is formed by extending from the side of the second vertical portion toward the direction close to the second extension portion. The bent portion and the second extension portion are spaced apart along the extension direction of the second vertical portion. The bent portion, the second vertical portion, and the second extension portion together form a groove to provide attachment space.

[0010] Furthermore, it also includes a limiting member attached to the guide rail, the limiting member comprising: The sliding portion has an attachment section, a transition section extending from the attachment section toward the first vertical portion, and a load section extending from the transition section in a direction parallel to the first vertical portion, wherein the attachment section is slidably engaged with the guide rail or a groove of the guide rail. The limiting part is located on the side of the load section opposite to the first vertical part.

[0011] Furthermore, the limiting part and the load segment are formed by two different components, and the limiting part can be displaced in the vertical direction relative to the load segment.

[0012] Furthermore, the limiting part has a wavy protrusion on the surface facing the load section, and an oblong hole is formed along the vertical direction of the limiting part; The surface of the load section facing the limiting part has a wavy groove, and a third screw hole is provided at the center of the surface of the load section; The protrusion is adapted to the groove, the waist-shaped hole corresponds to the third screw hole, and the limiting part is fastened to the load section by the first fastener passing through the waist-shaped hole and screwing into the third screw hole.

[0013] Furthermore, the limiting part and the load section are integrally formed from the same component, and the limiting part is formed by extending horizontally from the surface of the load section away from the guide rail in a direction away from the guide rail.

[0014] Furthermore, a track segment extends from the first vertical portion toward the load segment to form a shaped track segment, and an inverted slide plate segment extends from the load segment toward the first vertical portion to form an inverted slide plate segment, the slide plate segment slidingly engaging with the track segment.

[0015] Furthermore, a first screw hole is formed on the surface of the transition section facing the second extension. A set screw is screwed into the first screw hole, and the set screw abuts against the second extension to lock the position of the sliding part relative to the guide rail.

[0016] Furthermore, a bent portion is formed by extending from the side of the second vertical portion toward the direction of the second extension portion; the transition section extends toward the second vertical portion to form a baffle section, and a second screw hole is opened in the direction perpendicular to the baffle section. By screwing in a second fastener, the end of the second fastener extends out of the second screw hole and abuts against the bent portion of the guide rail.

[0017] Furthermore, an abutment section is formed by extending from the attachment section toward the second extension.

[0018] Furthermore, the limiting portion has a limiting surface facing the rear cargo box of the pickup truck.

[0019] Furthermore, the surface of the limiting part is provided with a strip-shaped limiting hole.

[0020] Furthermore, it also includes a clamping device for attaching the guide rail to the pickup truck bed, the clamping device comprising: The first clamp is slidably engaged with the guide rail; The second clamp is positioned opposite to the first clamp and works in conjunction with the first clamp to clamp onto the side wall of the pickup truck's tailgate. The third fastener is used to adjust the clamping force applied by the first and second clamps to the side wall of the pickup truck's tailgate.

[0021] Furthermore, the first clip extends toward the second extension to form a support section.

[0022] The present invention provides a guide rail structure attached to the rear of a pickup truck, which has the following advantages: by setting a first extension and a second extension to be spaced apart along the extension direction of the first vertical part, and forming a water guiding chamber together with the first vertical part and the second vertical part, the coordinated layout of the horizontal / non-linear path extension of the first extension and the non-linear / horizontal path extension of the second extension breaks the limitation of the traditional single extension on the chamber space, effectively expands the volume of the water guiding chamber, and improves the liquid collection and guiding capability. The basic structure, in which the first vertical part and the second vertical part are parallel or nearly parallel and spaced apart, together with the first extension part and the second extension part extending and intersecting in different directions, forms a multi-dimensional force support system. Compared with the traditional single extension part structure, it significantly improves the deformation resistance and load-bearing stability of the guide rail body, ensuring that the volume and water guiding function of the water guiding chamber are not affected by structural deformation under cargo transportation or external force. The flexible design of the first extension section extending horizontally or along a non-linear path and the second extension section extending non-linearly or horizontally allows the extension path to be adjusted according to the specific dimensions of the pickup truck tailgate, installation space, and water diversion requirements. This makes the guide rail structure suitable for different models of pickup truck tailgates, enhancing the product's versatility and market applicability. Attached Figure Description

[0023] Figure 1 This is a first-view schematic diagram of the cooperation between the tailgate cover and the guide rail structure of the present invention. Figure 2 This is a second-view schematic diagram of the cooperation between the tailgate cover and the guide rail structure of a leather car according to an embodiment of the present utility model; Figure 3 This is a partial enlarged schematic diagram of the guide rail in an embodiment of this utility model; Figure 4 This is a front view of the guide rail according to an embodiment of the present utility model; Figure 5 This is a perspective view of the sealing component according to an embodiment of the present utility model; Figure 6 This is a perspective view of the guide component in an embodiment of the present utility model; Figure 7 for Figure 2 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the first embodiment of the limiting member of this utility model; Figure 9 This is an exploded view of the first embodiment of the limiting member of this utility model; Figure 10 for Figure 2 Enlarged view at point B in the middle; Figure 11 This is a schematic diagram of a second embodiment of the limiting component of this utility model; Figure 12 This is an exploded view of the first embodiment of the limiting member of this utility model; Figure 13 for Figure 2 Enlarged view at point C; Figure 14 This is a schematic diagram of the clamping component and the guide rail in an embodiment of the present invention; Figure 15 This is an exploded view of the clamping component in an embodiment of the present invention.

[0024] In the picture: 100. Pickup truck tailgate; 200. Guide rail; 2001. First vertical section; 20011. Track section; 2002. Second vertical section; 20021. Enclosure section; 20022. Bending section; 2003. First extension section; 20031. Extension section; 20032. Channel; 20033. Plastic sheet; 20034. Velcro or hook and loop fastener; 20035. Water channel; 2004. Second extension section; 20041. Horizontal section; 20042. First guide section; 20043. Second guide section; 300, sealing component; 3001, sealing part; 3002, baffle part; 3003, snap-fit ​​part; 400. Guide component; 4001. Sealing part; 4002. Drainage part; 500, limiting component; 5001, sliding part; 50011, attachment section; 500111, abutting section; 50012, transition section; 500121, first screw hole; 500122, baffle section; 500123, second screw hole; 500124, second fastener; 50013, load section; 500131, groove; 500132, third screw hole; 500133, sliding plate section; 5002, limiting part; 50021, protrusion; 50022, waist-shaped hole; 50023, limiting surface; 50024, limiting hole; 5003, first fastener; 5004, set screw; 600, tongue slices; 700, locking bar; 701, bar section; 702, locking part; 800, clamping component; 801, first clamp; 8011, support section; 802, second clamp; 803, third fastener. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] The embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can readily make various changes and modifications within the spirit and scope of this invention based on the disclosure herein. The singular forms “a,” “an,” and “the” used in this specification and the appended claims include plural references unless the context clearly specifies otherwise. The terms “comprising,” “including,” “having,” and similar terms are intended to have an inclusive and open-ended meaning, meaning that additional elements or features may be present.

[0027] This document provides a detailed description of the subject matter of embodiments of the present invention to satisfy legal requirements, but this description is not necessarily intended to limit the scope of the claims. The claimed subject matter may be embodied in other ways, may include different elements or steps, and may be used in combination with other existing or future technologies. Unless the order or arrangement of the various steps or elements is explicitly described, this description should not be construed as implying any particular order or arrangement between the various steps or elements.

[0028] The spatial orientation and directional terms used in this document are defined with reference to vehicles equipped with a cargo box cover. Longitudinal refers to the direction corresponding to the length of the vehicle, extending from the front (cab end) to the rear of the truck. Lateral refers to the direction perpendicular to the longitudinal direction, extending from the left side to the right side of the truck when viewed from the driver's position. Together, longitudinal and lateral define a generally horizontal reference plane corresponding to the surface of the cargo box. Vertical refers to the direction perpendicular to the horizontal reference plane, extending upwards or downwards relative to the plane on which the vehicle is positioned during normal operation. These directional definitions are used consistently throughout this document to clearly describe the various components and orientations of the cargo box cover mechanism.

[0029] As used in this article, "inward" refers to the direction pointing towards the center of the truck bed, and "outward" refers to the direction away from the center of the truck bed. As used in this article, "front end" refers to the end closer to the truck cab, and "rear end" refers to the end further away from the truck cab and closer to the rear of the truck.

[0030] For convenience, embodiments of the present invention are described with reference to the normal operating direction of a vehicle, using positional and directional terms such as "front," "rear," "left," "right," "up," "down," "horizontal," and "vertical." These terms are not intended to be limiting. The definitions of longitudinal, lateral, and vertical directions are as described above, and references to movement or alignment are made with reference to these directions.

[0031] Please see Figure 1This is a first-view schematic diagram of the pickup truck tailgate and guide rail structure in accordance with an embodiment of the present utility model; the pickup truck tailgate 100 is attached to the guide rails 200 on both sides, and the guide rails 200 are attached to the side wall of the pickup truck tailgate (not shown in the figure) by clamping members 800 to ensure the installation stability of the guide rails 200 on the side wall of the pickup truck tailgate. Please see Figure 2 This is a second-view schematic diagram of the cooperation between the pickup truck tailgate and the guide rail structure in an embodiment of the present utility model; each guide rail 200 is provided with at least 3 clamping members 800 at intervals along the length of the pickup truck tailgate to distribute the force and avoid local deformation.

[0032] Please see Figure 7 and Figure 10 The opening and closing positioning of the pickup truck tailgate 100 is achieved through the coordinated action of the front locking mechanism and the rear engaging mechanism: the front end is longitudinally secured by the locking rod 700 and the front limiting member 500, and the rear end is laterally positioned by the laterally retractable tongue 600 and the rear limiting member 500. Together, they ensure that the tailgate 100 is rigidly fixed to the pickup truck tailgate when closed, preventing loosening or abnormal noise during driving.

[0033] Please see Figure 4 This utility model embodiment provides a guide rail structure attached to the trunk of a pickup truck, including a guide rail 200, the guide rail 200 having: a first vertical portion 2001; a second vertical portion 2002, which is parallel or nearly parallel to the first vertical portion 2001 and spaced apart from it; a first extension portion 2003, which extends from the side of the first vertical portion 2001 along a non-linear path or horizontally toward the second vertical portion 2002 and intersects with the second vertical portion 2002; and a second extension portion 2004, which extends from the first vertical portion 2001... 1. The side extends along a non-linear path or horizontally towards the second vertical part 2002 and intersects with the second vertical part 2002; wherein, the first extension part 2003 and the second extension part 2004 are spaced apart along the extension direction of the first vertical part 2001, and the first vertical part 2001, the second vertical part 2002, the first extension part 2003 and the second extension part 2004 together enclose to form a water guiding chamber P, and the extension direction of the first vertical part 2001 is the vertical direction of the first vertical part 2001 or its own height direction; The top side of the second vertical part 2002 extends toward the side rail of the pickup truck tailgate to form a lip. The second vertical part 2002 and the lip form an overlapping structure, overlapping the side rail of the pickup truck tailgate, and the second vertical part 2002 fits against the wall of the side rail of the pickup truck tailgate toward the center of the pickup truck tailgate. The guide rail 200 is a one-piece or welded metal frame structure. The first vertical part 2001 and the second vertical part 2002 serve as the left and right side walls of the water guiding chamber P, and the first extension part 2003 and the second extension part 2004 serve as the transverse connecting walls of the water guiding chamber P. The horizontal path of the first extension part 2003 guides the liquid to flow in a straight line, and the non-linear path (such as arc) of the second extension part 2004 reduces the dead angle of flow. The differentiated flow channel formed by the two can accelerate the liquid to converge towards the drain outlet along the longitudinal direction of the chamber and avoid stagnation.

[0034] Please continue reading Figure 4 The second extension 2004 has a horizontal section 20041 extending horizontally from the side of the first vertical section 2001, a first guide section 20042 extending from the end of the horizontal section 20041 toward the first extension 2003, and a second guide section 20043 extending from the end of the first guide section 20042 toward the second vertical section 2002.

[0035] Specifically, the horizontal segment 20041 is the starting segment of the second extension 2004, extending horizontally from the inner wall of the first vertical part 2001 towards the second vertical part 2002. Its extension direction is parallel to the horizontal extension direction of the first extension 2003, and its cross-section is rectangular. The first guide segment 20042 is the turning segment of the second extension, extending from the free end of the horizontal segment 20041 towards the direction close to the first extension 2003. Its extension path is an inclined straight line or an arc bend, and its extension end forms a gap with the lower surface or side of the first extension. The second guide segment 20043 is the terminal segment of the second extension, extending from the free end of the first guide segment 20042 towards the inner wall of the second vertical part 2002. Its extension path is mainly a horizontal straight line or a slight bend. Its free end intersects with and is fixed (welded or integrally formed) the inner wall of the second vertical part 2002. The connection point with the second vertical part 2002 is located below the connection point between the first extension 2003 and the second vertical part 2002. The second extension section 2004, through its integrated three-section structure of horizontal section, first guide section, and second guide section, optimizes the water flow channel and improves drainage efficiency, while enhancing the overall structural stability of guide rail 200, thus meeting the dual requirements of load-bearing and water guiding in pickup truck tail boxes.

[0036] Please see Figure 3 and Figure 4 An extension portion 20031 is formed by extending from the first extension portion 2003 in a direction away from the second extension portion 2004; specifically, the extension portion 20031 is a vertical or inclined member integrally extended from one side surface of the first extension portion 2003 in a direction away from the second extension portion 2004. The enclosure portion 20021 extends from the second vertical portion 2002 toward the extension portion 20031 to form a barrier portion 20021; specifically, the barrier portion 20021 is a long strip-shaped member that extends from the inner sidewall of the second vertical portion 2002 toward the extension portion 20031 and is arranged parallel or nearly parallel to the extension portion 20031 at intervals. The enclosure portion 20021 and the extension portion 20031 are arranged parallel to each other and spaced apart. The first extension portion 2003, the extension portion 20031, the enclosure portion 20021, and the second vertical portion 2002 together enclose to form an open water collection chamber S, and the opening is formed between the extension portion 20031 and the enclosure portion 20021. There is at least one channel 20032 between the water collection chamber S and the water guiding chamber P for fluid to pass through.

[0037] The open design of the water collection chamber S, through the spaced openings of the extension 20031 and the enclosure 20021, can catch the fluid dripping from the edge of the tailgate 100 or external splashes, preventing the fluid from directly overflowing into the tailgate; the semi-enclosed structure of the water collection chamber S can slow down the fluid impact speed and prevent the overflow caused by a large instantaneous flow of fluid directly rushing into the water guiding chamber P.

[0038] By opening a channel 20032 in the first extension 2003, the fluid in the water collection chamber S flows directionally into the central flow channel of the water guiding chamber P, preventing the fluid from stagnating in the water collection chamber S. A plastic plate 20033 is also provided on the top of the first extension 2003. Velcro or hook-and-loop fasteners 20034 are sewn onto the plastic plate 20033. The Velcro or hook-and-loop fasteners 20034 are bonded to the hook-and-loop fasteners on the bottom surface of the pickup truck tailgate 100 to improve the tightness of the connection between the pickup truck tailgate and the pickup truck tailgate 100, prevent vibration between the pickup truck tailgate and the pickup truck tailgate 100 during driving, reduce noise, improve stability, and prevent relative position displacement. A water flow hole 20035 is opened at the corresponding position of the plastic plate 20033 and the channel 20032, and the water flow hole 20035 is connected to the channel. Please see Figure 5The end of the guide rail 200 is provided with a sealing member 300. The sealing member 300 has a sealing part 3001 that is adapted to the internal contour of the guide rail and is inserted into the inside of the guide rail 200 to seal the water guiding chamber P of the guide rail. Specifically, the sealing component 300 is an integrally molded plastic or metal component used to seal the water-guiding chamber P at the end of the guide rail 200. The structure includes a sealing part 3001, a baffle part 3002, and a snap-fit ​​part 3003. The sealing part 3001 is the insertion end of the sealing component 300, and has a hollow structure that matches the contour of the water-guiding chamber P inside the guide rail 200. The shape of its outer peripheral surface is complementary to the contour of the inner wall of the water-guiding chamber P. After insertion, it fits against the inner wall of the water-guiding chamber P to prevent fluid from overflowing from the end of the guide rail 200. The baffle part 3002 is a plate-shaped limiting structure integrally extended from the rear end face (the end opposite to the insertion direction) of the sealing part 3001. When inserted, the front side of the baffle part 3002 (the side facing the sealing part 3001) abuts against the end face of the guide rail 200 to limit the insertion depth of the sealing part 3001 and prevent excessive insertion from causing interference with the internal structure of the water-guiding chamber P. The snap-fit ​​portion 3003 consists of multiple elastic claws extending horizontally from the top side of the baffle portion 3002 (along both sides or one side) and spaced laterally along the baffle portion 3002. A snap-fit ​​space is formed between the lower surface of the snap-fit ​​portion 3003 and the outer peripheral surface of the blocking portion 3001. The blocking member 300 is assembled to the end of the guide rail 200 by means of plug-in sealing and snap-fit ​​fixing. The blocking portion 3001 of the blocking member 300 is aligned with the end opening of the guide rail 200 along the axial direction of the guide rail 200 and inserted inward until the outer peripheral surface of the blocking portion 3001 is completely in contact with the inner wall of the water guiding chamber P. At this time, the end opening of the water guiding chamber P is closed by the blocking portion 3001, blocking the fluid from entering and exiting from the end of the guide rail 200. The plugging and mating of the sealing part 3001 with the water guiding chamber P ensures reliable sealing and prevents fluid leakage in the water guiding chamber P; the snap-fit ​​of the snap-fit ​​of the snap-fit ​​of the snap-fit ​​of the snap-fit ​​of the end edge of the guide rail 200 and the limiting abutment of the baffle part 3002 ensure that the sealing part 300 has no axial movement after assembly, the overall structure is stable, and it is suitable for vibration conditions during vehicle operation.

[0039] Please see Figure 6The guide rail 200 has a guide member 400 at its end. The guide member 400 has a sealing part 4001 and a drainage part 4002 communicating with the sealing part 4001. Specifically, the guide member 400 is an integrally formed fluid outlet and fixation integrated component, used to directionally draw out the fluid in the water-guiding chamber P of the guide rail 200 and fix itself. Its structure includes a sealing part 4001, a drainage part 4002, a connector part 4003, a sealing plate part 4004, and a clamping plate part 4005. The sealing part 4001 is an insert-type sealing component of the guide member 400, used to cooperate with the end of the water-guiding chamber P of the guide rail 200 and block fluid leakage. The drainage part 4002 is a fluid channel component connecting the sealing part 4001 and the connector part 4003, used to guide the fluid in the water-guiding chamber P to the connector part 4003. The connector part 4003 is the end interface component of the drainage part 4002, used to connect... Connecting to the external drain pipe, the sealing plate 4004 is a plate-shaped limiting member that extends radially outward from the connection between the sealing plate 4001 and the drainage plate 4002. The clamping plate 4005 is an elastic clamping member that extends laterally from the outer periphery of the sealing plate 4004. It is used to fix the guide 400 to the end of the guide rail 200. The guide 400 integrates sealing, drainage and fixing functions. The contour matching design of the sealing plate 4001 and the water guiding chamber P ensures no fluid leakage. The directional flow guidance of the drainage plate 4002 and the connector 4003 realizes the efficient discharge of fluid in the water guiding chamber P. The elastic clamping of the clamping plate 4005, combined with the limiting of the sealing plate 4004, ensures no loosening after assembly and is suitable for vehicle driving vibration conditions.

[0040] Please see Figure 4 A bent portion 20022 is formed by extending from the side of the second vertical portion 2002 toward the second extension portion 2004. The bent portion 20022 and the second extension portion 2004 are spaced apart along the extension direction of the second vertical portion 2002. The bent portion 20022, the second vertical portion 2002, and the second extension portion 2004 together form a groove H to provide attachment space. Specifically, the slide groove H is a long, narrow groove structure that provides attachment space. It is formed by the bending portion 20022, the second vertical portion 2002, and the second extension portion 2004, forming a space for accommodating and limiting the attachment. The attachment can be embedded in the groove along the longitudinal direction of the slide groove H, with its two sides respectively in contact with the inner side wall of the second vertical portion 2002 and the outer side wall of the bending portion 20022, and its bottom in contact with the lower surface of the second guide section 20043 of the second extension portion 2004, thereby realizing the sliding adjustment or fixed installation of the attachment in the slide groove H.

[0041] Please see Figure 8 and Figure 11It also includes a limiting member 500 attached to the guide rail. The limiting member 500 includes: a sliding part 5001 having an attachment section 50011, a transition section 50012 extending from the attachment section 50011 toward the first vertical part 2001, and a load section 50013 extending from the transition section 50012 in a direction parallel to the first vertical part 2001. The attachment section 50011 is slidably engaged with the guide rail 200 or the groove H of the guide rail 200. The limiting part 5002 is located on the side of the load section 50013 facing away from the first vertical part 2001.

[0042] Please see Figure 8 and Figure 9 The limiting part 5002 and the load section 50013 are formed by two different components, and the limiting part 5002 can be displaced vertically relative to the load section 50013. Specifically, the limiting part 5002 and the load section 50013 are two independently formed components, and vertical relative displacement is achieved through detachable connection and guide fit. The split structure and vertical displacement adjustment design allow the limiting part 5002 to be flexibly adapted according to the height difference of external components, improving the versatility of the limiting part 500. Please continue reading Figure 8 and Figure 9 The limiting part 5002 has a wavy protrusion 50021 on its surface facing the load section 50013, and an oblong hole 50022 is formed along the vertical direction of the limiting part 5002. The load section 50013 has a wavy groove 500131 on its surface facing the limiting part 5002, and a third screw hole 500132 is formed at the center of the surface of the load section 50013. The protrusion 50021 and the groove 500131 are adapted to each other, and the oblong hole 50022 and the third screw hole 500132 are positioned correspondingly. A first fastener 5003 passes through the oblong hole 50022 and screws into the third screw hole 500132, thus fastening the limiting part 5002 and the load section 50013 together. The limiting part 5002 and the load section 50013 achieve axial positioning and torsional resistance through complementary wavy concave-convex structures. Please see Figure 11The limiting part 5002 and the load section 50013 are integrally formed from the same component. The limiting part 5002 extends horizontally from the surface of the load section 50013 away from the guide rail 200. The integral molding of the limiting part 5002 and the load section 50013 eliminates the connection gap of a split structure. The connection strength between the limiting part 5002 and the load section 50013 is improved compared to a split structure, allowing it to withstand greater limiting impact forces. No additional assembly process is required, reducing the risk of relative displacement and ensuring the limiting position accuracy of the limiting part 5002. This implementation method, through the integral horizontal extension design of the limiting part and the load section, simplifies the structure while improving limiting reliability, making it suitable for guide rail limiting scenarios with high requirements for structural strength and assembly efficiency.

[0043] Please continue reading Figure 8 An L-shaped track segment 20011 extends from the first vertical section 2001 toward the load section 50013, and an inverted L-shaped sliding plate segment 500133 extends from the load section 50013 toward the first vertical section 2001. The sliding plate segment 500133 slides in conjunction with the track segment 20011. The track segment 20011 and the sliding plate segment 500133 achieve longitudinal sliding guidance through the nested L-shaped contours. The L-shaped nested structure provides bidirectional constraints. The complementary design of the L-shape and the inverted L-shape, along with the multi-faceted fit and anti-detachment edge design, ensures the stability of the limiting component 500.

[0044] Please continue reading Figure 8 and Figure 9 The transition section 50012 has a first screw hole 500121 on its surface facing the second extension 2004. A set screw 5004 is screwed into the first screw hole 500121, and the set screw 5004 abuts against the second extension 2004 to lock the position of the sliding part 5001 relative to the guide rail 200. The transition section 50012 is an intermediate component connecting the sliding part 5001 to the load section 50013 and the guide part. It has a radial first screw hole 500121 on its outer peripheral surface facing the second extension 2004. Through the cooperation of the screw hole and the set screw, a reliable position locking of the sliding part and the guide rail is achieved with a simple structure. It is easy to operate and highly adaptable, meeting the design requirements of compactness and high reliability.

[0045] Please see Figure 11A bent portion 20022 is formed by extending from the side of the second vertical portion 2002 toward the second extension portion 2004; a transition section 50012 extends toward the second vertical portion 2002 to form a baffle section 500122, and a second screw hole 500123 is opened in a direction perpendicular to the baffle section 500122. By screwing in a second fastener 500124, the end of the second fastener 500124 extends out of the second screw hole 500123 and abuts against the bent portion 20022 of the guide rail 200. This structure, through the corresponding extension of the baffle section and the bent portion and the fastener abutment design, achieves reliable position locking of the sliding part and the guide rail with a simple structure, making it convenient to operate and highly adaptable.

[0046] Please continue reading Figure 11 An abutment section 50011 extends from the attachment section 50011 toward the second extension 2004 to form an abutment section 500111, which may or may not contact the second extension 2004 of the guide rail 200.

[0047] Please continue reading Figure 11 The limiting part 5002 has a limiting surface 50023 facing the rear of the pickup truck, which cooperates with the tongue 600 to limit the vertical position of the tongue 600.

[0048] Please continue reading Figure 12 The surface of the limiting part 5002 is provided with a strip-shaped limiting hole 50024. The locking rod 700 is inserted into the limiting hole 50024 to achieve longitudinal fastening. The rod part 701 of the locking rod 700 is inserted from one end of the limiting hole 50024, slides to the target fastening position, and the locking part 7002 is tightened until the bottom surface is completely in contact with the operating surface of the limiting part 5002 to complete the longitudinal position locking.

[0049] Please see Figure 13 , Figure 14 and Figure 15 It also includes a clamping member 800 for attaching the guide rail to the pickup truck bed. The clamping member includes: a first clamp 801, which slides in cooperation with the guide rail 200; a second clamp 802, which is disposed opposite to the first clamp 801 and cooperates with the first clamp 801 to clamp the side wall of the pickup truck bed; and a third fastener 803, which is used to adjust the clamping force applied by the first clamp 801 and the second clamp 802 to the side wall of the pickup truck bed.

[0050] Please continue reading Figure 14 The first clip 801 extends toward the second extension 2004 to form a support section 8011, which may or may not contact the second extension 2004 of the guide rail 200.

[0051] The terms “comprising,” “including,” “containing,” “comprise,” “include,” “comprising,” and “include” as used in this specification and the appended claims are intended to specify the presence of the stated feature, integer, mechanism, or step, but do not exclude the presence or addition of one or more other features, integers, mechanisms, steps, actions, or groups.

[0052] As described herein (including the claims), the use of "and" in a list of items beginning with "at least one" or "one or more" indicates that any combination of the listed items may be used. For example, a list of "at least one of A, B, and C" includes any combination of A, B, C, AB, AC, BC, and / or ABC (i.e., A, B, and C). Furthermore, if items A, B, or C may appear or be used multiple times, then multiple uses of A, B, and / or C may constitute part of the intended combination. For example, a list of "at least one of A, B, and C" may also include AA, AAB, AAA, BB, etc.

[0053] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A guide rail structure attached to the rear cargo box of a pickup truck, characterized in that, Includes a guide rail (200), the guide rail (200) having: First vertical section (2001); The second vertical part (2002) is parallel or nearly parallel to the first vertical part (2001) and is arranged at intervals relative to each other; The first extension (2003) extends from the side of the first vertical part (2001) along a non-linear path or horizontally toward the second vertical part (2002) and intersects with the second vertical part (2002); The second extension (2004) extends from the side of the first vertical part (2001) along a non-linear path or horizontally toward the second vertical part (2002) and intersects with the second vertical part (2002); The first extension (2003) and the second extension (2004) are spaced apart along the extension direction of the first vertical part (2001), and the first vertical part (2001), the second vertical part (2002), the first extension (2003), and the second extension (2004) together form a water guiding chamber (P).

2. The guide rail structure according to claim 1, characterized in that, The second extension (2004) has a horizontal section (20041) extending horizontally from the side of the first vertical section (2001), a first guide section (20042) extending from the end of the horizontal section (20041) toward the first extension (2003), and a second guide section (20043) extending from the end of the first guide section (20042) toward the second vertical section (2002).

3. The guide rail structure according to claim 1, characterized in that, An extension portion (20031) extends from the first extension portion (2003) in a direction away from the second extension portion (2004); The enclosure section (20021) extends from the second vertical section (2002) toward the extension section (20031) to form the enclosure section (20021). The enclosure portion (20021) and the extension portion (20031) are arranged parallel to each other and spaced apart. The first extension portion (2003), the extension portion (20031), the enclosure portion (20021), and the second vertical portion (2002) together enclose to form an open water collection chamber (S), and the opening is formed between the extension portion (20031) and the enclosure portion (20021). There is at least one channel (20032) between the water collection chamber (S) and the water guiding chamber (P) for fluid to pass through.

4. The guide rail structure according to claim 1, characterized in that, The end of the guide rail (200) is provided with a sealing member (300), which has a sealing part (3001) adapted to the inner contour of the guide rail and is inserted into the inside of the guide rail (200) to seal the water guiding chamber (P) of the guide rail.

5. The guide rail structure according to claim 1, characterized in that, The guide rail (200) is provided with a guide member (400) at its end. The guide member (400) has a sealing part (4001) and a drainage part (4002) communicating with the sealing part (4001).

6. The guide rail structure according to claim 1, characterized in that, A bent portion (20022) extends from the side of the second vertical portion (2002) toward the second extension portion (2004) to form a bent portion (20022). The bent portion (20022) and the second extension portion (2004) are spaced apart along the extension direction of the second vertical portion (2002). The bent portion (20022), the second vertical portion (2002), and the second extension portion (2004) together form a groove (H) to provide attachment space.

7. The guide rail structure according to claim 1 or 6, characterized in that, It also includes a limiting member (500) attached to the guide rail, the limiting member (500) comprising: The sliding part (5001) has an attachment section (50011), a transition section (50012) extending from the attachment section (50011) toward the first vertical part (2001), and a load section (50013) extending from the transition section (50012) in a direction parallel to the first vertical part (2001). The attachment section (50011) is slidably engaged with the guide rail (200) or a groove (H) of the guide rail (200). The limiting part (5002) is located on the side of the load section (50013) facing away from the first vertical part (2001).

8. The guide rail structure according to claim 7, characterized in that, The limiting part (5002) and the load segment (50013) are formed by two different components, and the limiting part (5002) can be displaced in the vertical direction relative to the load segment (50013).

9. The guide rail structure according to claim 8, characterized in that, The limiting part (5002) has a wavy protrusion (50021) on the surface facing the load section (50013), and an oblong hole (50022) is opened along the vertical direction of the limiting part (5002). The surface of the load section (50013) facing the limiting part (5002) has a wavy groove (500131), and a third screw hole (500132) is provided at the center of the surface of the load section (50013). The protrusion (50021) is adapted to the groove (500131), the waist-shaped hole (50022) is positioned corresponding to the third screw hole (500132), and the limiting part (5002) is fastened to the load section (50013) by the first fastener (5003) passing through the waist-shaped hole (50022) and screwing into the third screw hole (500132).

10. The guide rail structure according to claim 7, characterized in that, The limiting part (5002) and the load section (50013) are integrally formed from the same component. The limiting part (5002) is formed by extending horizontally from the surface of the load section (50013) away from the guide rail (200) in a direction away from the guide rail (200).

11. The guide rail structure according to claim 7, characterized in that, An L-shaped track segment (20011) extends from the first vertical portion (2001) toward the load segment (50013), and an inverted L-shaped sliding plate segment (500133) extends from the load segment (50013) toward the first vertical portion (2001), wherein the sliding plate segment (500133) and the track segment (20011) slide in cooperation.

12. The guide rail structure according to claim 7, characterized in that, The transition section (50012) has a first screw hole (500121) on its surface facing the second extension (2004). A set screw (5004) is screwed into the first screw hole (500121), and the set screw (5004) abuts against the second extension (2004) to lock the position of the sliding part (5001) relative to the guide rail (200).

13. The guide rail structure according to claim 7, characterized in that, A bent portion (20022) is formed by extending from the side of the second vertical portion (2002) toward the second extension portion (2004). The transition section (50012) extends toward the second vertical part (2002) to form a baffle section (500122), and a second screw hole (500123) is opened in a direction perpendicular to the baffle section (500122). By screwing in a second fastener (500124), the end of the second fastener (500124) extends out of the second screw hole (500123) and abuts against the bent part (20022) of the guide rail (200).

14. The guide rail structure according to claim 7, characterized in that, An abutment section (500111) extends from the attachment section (500111) toward the second extension (2004).

15. The guide rail structure according to claim 7, characterized in that, The limiting part (5002) has a limiting surface (50023) facing the rear of the pickup truck.

16. The guide rail structure according to claim 7, characterized in that, The surface of the limiting part (5002) is provided with a strip-shaped limiting hole (50024).

17. The guide rail structure according to claim 1, characterized in that, It also includes a clamp (800) for attaching the guide rail to the pickup truck bed, the clamp comprising: The first clamp (801) is slidably engaged with the guide rail (200); The second clip (802) is disposed opposite to the first clip (801) and cooperates with the first clip (801) to clamp onto the side wall of the pickup truck's tail box; The third fastener (803) is used to adjust the clamping force applied by the first clamp (801) and the second clamp (802) to the side wall of the pickup truck's tailgate.

18. The guide rail structure according to claim 17, characterized in that, The first clip (801) extends toward the second extension (2004) to form a support section (8011).

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