Trunk track mounting component, track assembly and vehicle

By adopting the frame structure of front cross beam and side rail installation components in the car trunk, combined with the middle rail and side rail components, the problems of insufficient space utilization and poor installation stability in traditional design are solved, and more efficient storage space utilization is achieved and installation ease.

CN119099493APending Publication Date: 2024-12-10ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1
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Patent Information

Application Number
CN202411241549.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2024-12-10

AI Technical Summary

Technical Problem

After installing larger objects in traditional car trunk design, it is difficult to effectively utilize the space, resulting in a decrease in storage capacity, and there are positioning errors and stability problems during installation.

Method used

The frame structure of the front cross beam and side rail installation components is adopted. Through the combination of the middle rail installation components and side rail installation components, the objects are ensured to be stable and accurate in installation, free up more storage space, and improve installation convenience.

Benefits of technology

It realizes efficient utilization of the trunk space, ensures stable installation of objects and improves storage space, and reduces positioning errors, improves the stability and reliability of the overall structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of tracks, in particular to a trunk track mounting assembly which comprises a front cross beam and side track mounting assemblies, and the front cross beam is arranged in the first direction; the side rail mounting assemblies are arranged in the second direction, and at least two side rail mounting assemblies are arranged in parallel at intervals in the first direction; one end of any side rail mounting assembly is in positioning connection with the front cross beam, and the positions, away from the front cross beam, of the side rail mounting assemblies are fixedly connected through a rear doorsill and / or a rear cross beam arranged in the first direction; according to the trunk track installation assembly, on one hand, more storage space can be released in the height direction of a vehicle body, the space utilization rate of a trunk is guaranteed, on the other hand, a stable and accurate installation foundation can be provided for a track mechanism, and objects can be installed on the track mechanism more conveniently.
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Description

Technical Field

[0001] The present invention relates to the field of track technology, and in particular to a trunk track installation component, a track assembly and a vehicle. Background Art

[0002] Traditionally, the design of car trunks focuses on its functionality as a cargo storage space to accommodate items of various sizes and shapes. To this end, the trunk is usually simple and open, consisting of only a flat floor and a rear cover that can be opened directly. However, as people's living standards improve, their expectations for cars have also upgraded, and car owners hope that the trunk can be more in line with their daily needs.

[0003] Modern car owners may wish to place larger life convenience items such as portable refrigerators, mobile kitchens, or items with storage space in the trunk to accommodate specific life habits and scene requirements; if the aforementioned items are directly installed on the rear floor of the trunk, the space above the items will be difficult to continue to use, thereby greatly reducing the storage space of the trunk in the direction of the vehicle body height, which is not conducive to improving the overall storage capacity of the trunk; therefore, how to ensure that the installation of objects in the trunk will not significantly affect the trunk storage space is a problem that needs to be solved in this case. Summary of the invention

[0004] In view of the above shortcomings of the prior art, an object of the present invention is to provide a trunk rail mounting assembly, which, on the one hand, can release more storage space in the height direction of the vehicle body, ensuring the space utilization of the trunk, and on the other hand, can provide a stable and accurate installation base for the rail mechanism, so that objects can be more easily installed on the rail mechanism.

[0005] To achieve the above-mentioned object and other related objects, the present invention provides a trunk rail mounting assembly, comprising a front crossbeam and a side rail mounting assembly; the front crossbeam is arranged along a first direction; the side rail mounting assemblies are arranged along a second direction, and at least two side rail mounting assemblies are arranged in parallel and spaced apart in the first direction; one end of each of the side rail mounting assemblies is positioned and connected to the front crossbeam, and a position of each of the side rail mounting assemblies away from the front crossbeam is fixedly connected via a rear door sill and / or a rear crossbeam arranged along the first direction.

[0006] In one embodiment of the present invention, a middle track installation assembly arranged along the second direction is provided between the two side track installation assemblies, and two ends of the middle track installation assembly are respectively positioned and connected to the front cross beam and the rear cross beam.

[0007] In one embodiment of the present invention, a middle track installation assembly arranged along the second direction is provided between the two side track installation assemblies, and two ends of the middle track installation assembly are respectively positioned and connected to the front cross beam and the rear cross beam.

[0008] In one embodiment of the present invention, the distance between the two side track mounting assemblies is greater than a first preset distance, so that the side track mounting assemblies are arranged adjacent to a first direction edge of the rear floor, where the first direction is the width direction of the vehicle body.

[0009] In one embodiment of the present invention, the mid-rail mounting assembly includes a front leg and a rear leg for connecting to a vehicle body structure;

[0010] The distance between the front supporting leg and the rear supporting leg along the second direction is greater than a second preset distance, and the second direction is the length direction of the vehicle body.

[0011] In one embodiment of the present invention, the front crossbeam includes a crossbeam body and a multiplex support that can be mounted on the crossbeam body in a forward or reverse direction; the multiplex support includes:

[0012] Support body;

[0013] A first mounting portion, disposed on the support body and used for fixed connection with the beam body in a forward or reverse direction;

[0014] The first positioning portion is arranged at one end of the support body and is used for positioning and connecting with the middle track mounting assembly.

[0015] In one embodiment of the present invention, the middle track installation assembly includes:

[0016] A support assembly, used for being fixedly mounted on the rear vehicle body along the length direction of the vehicle body;

[0017] A positioning bracket is arranged on the support assembly, and two ends of the positioning bracket are respectively used for positioning and connecting with the front crossbeam and the rear crossbeam, and a side of the positioning bracket away from the support assembly is used for installing a middle track assembly.

[0018] In one embodiment of the present invention, two groups of limiting rib grooves are provided along the length direction of the positioning bracket, which are respectively used to match and limit the corresponding middle rail components;

[0019] Both sides of the positioning bracket are provided with folded edges, and the folded edges are arranged along the length direction of the positioning bracket;

[0020] The positioning bracket is provided with a strip-shaped mounting block, and the strip-shaped mounting block is matched and mounted between the two groups of the limiting rib grooves.

[0021] In one embodiment of the present invention, the side track mounting assembly includes a trunk side longitudinal beam for connecting to the side wall of the vehicle body on one side, and the other side of the trunk side longitudinal beam is provided with:

[0022] A first step surface is provided along the length direction of the trunk side longitudinal beam and is used for installing a side guide rail assembly;

[0023] A second step surface is arranged non-coplanar with the first step surface along the length direction of the trunk side longitudinal beam, and is used for installing the side trim and carpet extending thereto;

[0024] The trunk side longitudinal beam is configured such that, when the trunk side longitudinal beam is installed in the trunk, at least one of the first step surface or the second step surface can be installed in a matching manner with a corresponding structure.

[0025] In one embodiment of the present invention, an avoidance notch is provided at one end of the trunk side longitudinal beam in the extension direction of the first step surface;

[0026] The side rail installation assembly also includes a support member, and the support member is configured so that when one end of the support member is fixedly installed at the avoidance gap, the other end of the support member can just support the side rail assembly fixed on the first step surface.

[0027] In one embodiment of the present invention, an extension leg is provided at one end of the trunk side longitudinal beam;

[0028] The upper portion of the extended leg is provided with a first mounting point and / or a first positioning point for positioning and connecting with the front cross beam;

[0029] The lower portion of the extended support leg is configured to be able to extend into a limiting hole provided on the front cross beam for connection with the rear floor.

[0030] To achieve the above-mentioned object and other related objects, the present invention provides a track assembly, comprising:

[0031] The trunk rail mounting assembly, and

[0032] A side track assembly is fixedly mounted on the side track mounting assembly;

[0033] The middle track assembly is fixedly mounted on the middle track mounting assembly.

[0034] In one embodiment of the present invention, the side track assembly comprises

[0035] a first track assembly;

[0036] A first plug is detachably connected to an end of the first track component in a direction perpendicular to the bottom surface of the first track component, and the first plug protrudes outside the first track component in a length direction of the first track component;

[0037] The first extension edge is extended and arranged in a direction perpendicular to the length of the first track component.

[0038] In one embodiment of the present invention, the first track assembly comprises:

[0039] A first outer guide rail including a strip-shaped mounting cavity;

[0040] A first inner guide rail is received in the mounting cavity, and mounting points and / or positioning points with the same hole positions are provided on the outer guide rail and the inner guide rail;

[0041] Furthermore, the first outer guide rail and the first inner guide rail are both provided with strip openings along their length directions.

[0042] To achieve the above object and other related objects, the present invention provides a vehicle including the track assembly.

[0043] In summary, the present invention forms a frame structure by connecting the side track mounting assembly arranged along the second direction with the front crossbeam, rear crossbeam and / or rear door sill arranged along the first direction, which helps to improve the stability of the overall structure; the two side track mounting assemblies are positioned by the front crossbeam so that they can maintain a consistent reference during the installation process, thereby avoiding or reducing the positioning error between the two side track assemblies and ensuring that they can be used smoothly together; therefore, the side track mounting assembly can provide a stable and precise installation foundation for the track mechanism, so that the track mechanism can be accurately positioned and installed, which is conducive to improving the installation stability of objects on the track mechanism, and makes it easier to install objects on the track mechanism, thereby improving the convenience of installation. This solution increases the installation height of the side track assembly in the trunk by reasonably setting the side track mounting assembly, thereby releasing more storage space; even if objects (such as refrigerators or kitchen equipment) are installed on the side track assembly, the space below the middle track assembly and the side track assembly can still be used, thereby ensuring the space utilization of the trunk. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural schematic diagram of the connection between the trunk rail mounting assembly, the middle rail assembly and the side rail assembly in an optional embodiment of the present invention;

[0046] Figure 2 It is a schematic diagram of the track assembly structure in an optional embodiment of the present invention;

[0047] Figure 3It is a schematic structural diagram of a track assembly arranged on a rear floor in an optional embodiment of the present invention;

[0048] Figure 4 for Figure 3 A structural cross-sectional view of the middle track mounting assembly along the length direction of the vehicle body;

[0049] Figure 5 It is a structural schematic diagram of the positioning connection between the middle rail installation assembly and the front cross beam in an optional embodiment of the present invention;

[0050] Figure 6 An exploded view of the structure of the connection between the middle rail mounting assembly and the front cross beam in an optional embodiment of the present invention;

[0051] Figure 7 It is a schematic diagram of the three-dimensional structure of a multiplexing support in an optional embodiment of the present invention;

[0052] Figure 8 It is a front view of a multiplexing support in an optional embodiment of the present invention;

[0053] Fig. 9 It is a structural schematic diagram of a middle track installation assembly in an optional embodiment of the present invention being positioned and connected to a crossbeam body via a multiplex support;

[0054] Fig.10 It is a schematic diagram of the connection between the middle track installation component and the middle track component in an optional embodiment of the present invention;

[0055] Fig.11 It is a schematic diagram of the structure of the mounting bracket in an optional embodiment of the present invention;

[0056] Fig.12 It is a structural schematic diagram of a part of the structure of the middle track assembly in an optional embodiment of the present invention being installed on a positioning bracket;

[0057] Fig.13 It is a schematic diagram of the side longitudinal beam structure of the trunk in an optional embodiment of the present invention;

[0058] Fig.14 It is a schematic structural diagram of the positioning connection between the side longitudinal beams of the trunk and the front cross beam in an optional embodiment of the present invention;

[0059] Fig.15 It is a structural schematic diagram of a side track assembly in an optional embodiment of the present invention being positioned and connected to a side longitudinal beam of a trunk through a support member at an avoidance notch;

[0060] Fig.16 It is a schematic structural diagram of a side track assembly in an optional embodiment of the present invention;

[0061] Fig.17It is a structural exploded view of a side track assembly in an optional embodiment of the present invention;

[0062] Fig.18 It is a schematic diagram of the structure of the mutual limitation among the side track assembly, the rear door sill and the carpet in an optional embodiment of the present invention;

[0063] Component number description: front crossbeam 1, crossbeam body 11, multiplex support 12, support body 121, first mounting portion 122, first positioning portion 123, second mounting portion 124, rear crossbeam 2, middle track mounting assembly 3, support assembly 31, mounting bracket 311, front leg 3111, rear leg 3112, support component 312, positioning bracket 32, limiting rib groove 321, folded edge 322, strip mounting block 323, side track mounting assembly 4, trunk side longitudinal beam 41, first step surface 411, second step surface 412, avoidance gap 413, mounting surface 4131, extended support leg 414, connecting part 4141, third positioning point 4142, third mounting point 4143, supporting leg 415, first connecting point 4151, second connecting point 416, third connecting point 417, reinforcing structure 419, weight reduction hole 418, supporting member 42, rear door sill 5, side trim panel 51, carpet 52, middle track assembly 6, second outer guide rail 61, second inner guide rail 62, second plug 63, second strip opening 64, side track assembly 7, first track assembly 71, first plug 72, first extension edge 73, first outer guide rail 711, first inner guide rail 712, first strip opening 713. DETAILED DESCRIPTION

[0064] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the features in the following embodiments and the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific embodiments, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or according to the conditions recommended by the manufacturers.

[0065] See also Figures 1 to 18. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0066] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are familiar to those skilled in the art and the description of the present invention, and any methods, equipment and materials of the prior art similar or equivalent to the methods, equipment and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0067] Generally, in the vehicle coordinate system of this case, the first direction refers to the vehicle width direction, that is, Figure 1 The second direction is the X direction of the vehicle body, that is, Figure 1 The third direction is the Y direction of the vehicle body height, that is, Figure 1 The Z direction in .

[0068] See also Figure 1-2 The present invention provides a trunk rail mounting assembly, including a front cross beam 1 and a side rail mounting assembly 4; the front cross beam 1 is arranged along a first direction; the side rail mounting assembly 4 is arranged along a second direction, and at least two side rail mounting assemblies 4 are arranged in parallel and spaced apart in the first direction; one end of each side rail mounting assembly 4 is positioned and connected to the front cross beam 1, and a position of each side rail mounting assembly 4 away from the front cross beam 1 is fixedly connected through a rear door sill 5 and / or a rear cross beam 2 arranged along the first direction. It should be understood that only one of the rear door sill 5 and the rear cross beam 2 may be provided, or both may be provided.

[0069] In this case, by connecting the side track installation assembly 4 arranged in the second direction with the front crossbeam 1, the rear crossbeam 2 and / or the rear door sill 5 arranged in the first direction, a frame structure is formed, which helps to improve the stability of the overall structure; the two side track installation assemblies 4 are positioned by the front crossbeam 1 so that they can maintain a consistent reference during the installation process, thereby avoiding or reducing the positioning error between the two side track assemblies 7 and ensuring that they can be used smoothly. This solution increases the installation height of the side track assembly 7 in the trunk by reasonably setting the side track installation assembly 4, thereby releasing more storage space; so that even if objects (such as refrigerators or kitchen equipment) are installed on the side track assembly 7, the space below the middle track assembly 6 and the side track assembly 7 can still be used, thereby ensuring the space utilization of the trunk.

[0070] In one embodiment of the present invention, a middle track installation assembly 3 arranged along the second direction is provided between the two side track installation assemblies 4, and two ends of the middle track installation assembly 3 are respectively positioned and connected to the front cross beam 1 and the rear cross beam 2.

[0071] It should be understood that the vehicle described in this case has at least one of the rear door sill 5 or the rear cross beam 2; generally, the rear body includes a rear floor, and the front cross beam 1 and the rear cross beam 2 are generally installed on the rear body, for example, installed on the structural parts of the rear body, such as floor cross beams, floor support structures, rear longitudinal beams, cast aluminum rear body and other structurally reliable and stable structural parts, and are directly or indirectly stably connected to these structural parts. At the same time, the front cross beam 1 and the rear cross beam 2 are arranged along the width direction of the body. The middle track mounting assembly 3 is used to mount the middle track assembly 6, and the side track mounting assembly 4 is used to mount the side track assembly 7; at least one of the middle track mounting assembly 3 and the side track assembly 7 are provided, and in this case, preferably, one middle track mounting assembly 3 is provided, and two side track mounting assemblies 4 are provided; since plastic material is light and low in cost, the front cross beam 1, the rear cross beam 2, and the side track mounting assembly 4 in this case are generally made of plastic material; the middle track mounting assembly 3 and the side track mounting assembly 4 are both installed on the rear body structure or on the rear floor, and can be detachably fixed and connected by fasteners such as screws and bolts.

[0072] The trunk rail mechanism described below refers to the general term for the two side rail assemblies 7 or the two side rail assemblies 7 and the middle rail assembly 6 . In the present case, by setting the middle track mounting assembly 3 and the two side track mounting assemblies 4, the technical gap in the track technology of the trunk of a conventional vehicle is made up. At the same time, one middle track mounting assembly 3 and two side track mounting assemblies 4 can provide greater supporting capacity, overcoming the problem that when only two side track assemblies 7 are set, they are easily damaged when carrying heavy objects due to excessive span; at the same time, the middle track mounting assembly 3 and the two side track mounting assemblies 4 are all positioned by the front cross beam 1, so that the three can maintain a consistent positioning standard during the installation process, which not only helps to improve the layout accuracy of the middle track mounting assembly 3 and the two side track mounting assemblies 4, but also ensures the stability and consistency of the overall structure, thereby improving the reliability of the trunk track mechanism, which is conducive to the rapid installation and disassembly of larger life convenience objects or objects with storage space such as portable refrigerators and mobile kitchens. Otherwise, when the middle track mounting assembly 3 and the side track mounting assembly 4 are not accurately positioned, it will be unfavorable for the rapid installation or disassembly or movement of the above-mentioned objects, and thus will not be able to meet the use requirements.

[0073] In the present case, a frame structure is formed by connecting the middle track mounting assembly 3 and the side track mounting assembly 4 arranged along the second direction with the front cross beam 1 and the rear cross beam 2 arranged along the first direction, which is beneficial to improving the stability of the overall structure and making the middle track mounting assembly 3 and the side track mounting assembly 4 have a consistent positioning reference, thereby avoiding or reducing the position error between the middle track assembly 6 and the side track assembly 7 that affects the coordinated use of the middle track assembly 6 and the side track assembly 7, and ensuring the normal installation of objects above the trunk track mechanism.

[0074] As an optional embodiment of this case, Figure 2 and 3 As shown, the distance between the two side track mounting assemblies 4 is greater than a first preset distance, so that the side track mounting assemblies 4 are arranged adjacent to a first direction edge of the rear floor, where the first direction is the width direction of the vehicle body.

[0075] It should be noted that, by making the distance between the two side rail mounting assemblies 4 greater than the first preset distance, on the one hand, it is ensured that the side rail mounting assembly 4 can be installed at the edge in the width direction of the vehicle body. Because the edge in the width direction of the vehicle body is a structural member of the rear vehicle body, the rigidity of the vehicle body structure can be fully utilized to provide a more solid support point, thereby ensuring the stable installation and sufficient support of the side rail mounting assembly 4; on the other hand, when the first preset distance between the two side rail mounting assemblies 4 is large enough, the space in the width direction of the vehicle body can be fully released, which is beneficial to ensuring the storage space in the trunk and improving the space utilization efficiency.

[0076] As an optional embodiment of this case, Figure 3 and 4 As shown, the middle rail mounting assembly 3 includes a front leg 3111 and a rear leg 3112 for connecting to the vehicle body structure; the spacing between the front leg 3111 and the rear leg 3112 along the second direction is greater than a second preset distance, and the second direction is the length direction of the vehicle body.

[0077] It should be noted that, by making the distance between the front support leg 3111 and the rear support leg 3112 along the second direction greater than the second preset distance, the middle track mounting assembly 3 can avoid the weak position in the middle area of ​​the rear floor, such as being installed on the rear body structure, thereby providing stable structural support for the middle track mounting assembly 3 and ensuring the structural stability and sufficient support of the middle track mounting assembly 3.

[0078] As an optional embodiment of this case, Figure 5-9 As shown, the front cross beam 1 includes a cross beam body 11 and a multiplex support 12 that can be mounted on the cross beam body 11 in a forward or reverse direction; the multiplex support 12 includes a support body 121, a first mounting portion 122, a first positioning portion 123 and a second mounting portion 124;

[0079] The first mounting portion 122 is arranged on the support body 121, and is used to be fixedly connected to the beam body 11 in a forward or reverse direction; the first positioning portion 123 is arranged at one end of the support body 121, and when the reuse support 12 is installed in a forward direction, the first positioning portion 123 is used to be positioned and connected with the middle rail mounting assembly 3; the second mounting portion 124 is arranged at the other end of the support body 121, and when the reuse support 12 is installed in a reverse direction, the second mounting portion 124 is used to be adapted and installed with other structures of the vehicle body.

[0080] It should be noted that since some car models need to install a trunk rail mechanism and some car models do not need to install a trunk rail mechanism, in order to make the front cross beam 1 adaptable to different car models, it is necessary to set a reuse support 12 on the front cross beam 1. When the reuse support 12 is installed on the cross beam body 11 in the forward direction, it can be positioned and connected with the middle track mounting assembly 3. When the reuse support 12 is installed on the cross beam body 11 in the reverse direction, it can be adapted and installed with accessories in other car models. The first mounting portion 122 is arranged on both sides of the support body 121. For example, the first mounting portion 122 is a plate-like structure protruding from the support body 121 to both sides, so that the front and back sides of the first mounting portion 122 can be fixedly connected to the cross beam body 11; the first positioning portion 123 is arranged at one end of the support body 121 in the height direction, and the second mounting portion 124 is arranged at the other end of the support body 121, and the first positioning portion 123 and the second mounting portion 124 are arranged opposite to each other; it should be understood that a recessed structure is arranged on the cross beam body 11 to achieve adaptive installation with the reused support 12. In this case, by setting the reused support 12, the front cross beam 1 can be reused in different models, which reduces the cycle and cost of vehicle parts research and development and improves the efficiency of vehicle manufacturing.

[0081] As an optional embodiment of this case, Figure 6 , 10 As shown, the middle rail mounting assembly 3 includes a support assembly 31 and a positioning bracket 32; the support assembly 31 is used to be fixedly installed on the rear vehicle body along the length direction of the vehicle body; the positioning bracket 32 ​​is arranged on the support assembly 31, and the two ends of the positioning bracket 32 ​​are respectively used for positioning and connecting with the front cross beam 1 and the rear cross beam 2, and the side of the positioning bracket 32 ​​away from the support assembly 31 is used to install the middle rail assembly 6.

[0082] Since the front cross beam 1 and the rear cross beam 2 are generally plastic parts, if the middle track assembly 6 is directly positioned and installed on the rear floor through the middle track installation assembly 3, the position error between the middle track assembly 6 and the side track assembly 7 may increase. Based on this background, in order to reduce the positioning error of the middle track assembly 6 and ensure that the bottom of the middle track assembly 6 has sufficient support, it is necessary to design a middle track installation assembly 3 that can provide support and ensure accurate positioning. The middle track installation assembly 3 includes a support assembly 31 and a positioning bracket 32; the support assembly 31 is arranged on the rear floor in the trunk along the length direction of the vehicle. Specifically, the support assembly 31 is installed on the cast aluminum rear body at the rear floor, and avoids the weak position in the middle of the rear floor. It is fastened to the rear floor in a detachable manner such as bolts. Along the width direction of the vehicle body, the support assembly 31 is generally arranged in the middle of the rear floor and connected to the cast aluminum rear body or the vehicle body structure, so that the support assembly 31 can provide sufficient support for the middle track assembly 6, and ensure that the middle track assembly 6 has sufficient height and The side rail assembly 7 remains flush, and the support assembly 31 is generally made of metal material; along the height direction of the vehicle body, the positioning bracket 32 ​​is arranged on the upper part of the support assembly 31 and is detachably connected to the support assembly 31; since the two ends of the positioning bracket 32 ​​are respectively used for positioning and connecting with the front cross beam 1 on the rear floor and the rear cross beam 2 on the rear floor, the position of the positioning bracket 32 ​​is ensured to be more precise, thereby ensuring the accuracy of the installation position of the middle rail assembly 6, avoiding or reducing the position error between the middle rail assembly 6 and the side rail assembly 7 and affecting the coordinated use of the middle rail assembly 6 and the side rail assembly 7.

[0083] As an optional embodiment of this case, Figure 10-12 As shown, along the length direction of the positioning bracket 32, two groups of limiting rib grooves 321 are provided, which are respectively used to match and limit the corresponding middle rail components 6; folded edges 322 are provided on both sides of the positioning bracket 32, and the folded edges 322 are provided along the length direction of the positioning bracket 32; a strip mounting block 323 is provided on the positioning bracket 32, and the strip mounting block 323 is matched and installed between the two groups of limiting rib grooves 321.

[0084] It should be noted that the limiting rib groove 321 is arranged along the length direction of the positioning bracket 32, and two groups are provided. Any group of limiting rib grooves 321 matches and installs a middle track component 6. The design of the limiting rib grooves 321 provides installation limits for the middle track component 6, ensuring that the middle track component 6 can be accurately fixed in a predetermined position during the installation process. The limiting rib grooves 321 can effectively prevent the middle track component 6 from shifting due to vibration or external force; at the same time, the limiting rib grooves 321 also enhance the stability of the positioning bracket 32 ​​through its structure. The design of the folded edge 322 can significantly enhance the rigidity, stability and bending resistance of the entire positioning bracket 32, so that the positioning bracket 32 ​​can better maintain its shape and position when bearing part of the weight and external force from the middle track assembly 6, and reduce deformation caused by the force; and the design of the folded edge 322 allows the positioning bracket 32 ​​to be more precise when connected to the front crossbeam 1 and the rear crossbeam 2, because they provide a more stable and accurate reference surface for installation, which helps to ensure the precise matching of the middle track assembly 6 and the side track assembly 7, and reduce the misalignment problem during use. The folded edge 322 of this case is folded toward the inner side of the bottom of the positioning bracket 32, that is, the folded edge 322 is folded toward the middle position in the width direction of the positioning bracket 32, which is not only beautiful, but also can reduce or avoid scratches on relevant personnel during installation or use. A strip-shaped mounting block 323 is matched between the two groups of the limiting rib grooves 321, and the strip-shaped mounting block 323 is arranged flush with the middle track assembly 6 along its own length direction and / or height direction, and the height direction is the height direction of the vehicle body when the positioning bracket 32 ​​is connected to the front cross beam 1 and the rear cross beam 2. It should be noted that the combination of the two groups of limiting rib grooves 321 and the strip-shaped mounting block 323 provides a precise installation reference for the middle track assembly 6, so that the middle track assembly 6 can be more accurately installed in a predetermined position, which helps to ensure the accurate alignment between the middle track assembly 6 and the side track assembly 7; at the same time, since the strip-shaped mounting block 323 is arranged flush with the middle track assembly 6 along its own length direction and / or height direction, it is beneficial to the overall aesthetics of the middle track assembly 6.

[0085] As an optional embodiment of this case, Fig.13As shown, the side track mounting assembly 4 includes a trunk side longitudinal beam 41 having one side for connecting to the side wall of the vehicle body, and the other side of the trunk side longitudinal beam 41 is provided with a first step surface 411 and a second step surface 412; the first step surface 411 is arranged along the length direction of the trunk side longitudinal beam 41, and is used to install the side track assembly 7; the second step surface 412 is arranged non-coplanar with the first step surface 411, and is arranged along the length direction of the trunk side longitudinal beam 41, generally arranged below the first step surface 411, that is, below the height direction of the vehicle body, and is used to install the side trim panel 51 and carpet 52 extending thereto; the trunk side longitudinal beam 41 is configured so that when it is installed in the trunk, at least one of the first step surface 411 or the second step surface 412 can be installed in matching with the corresponding structure.

[0086] It should be noted that the trunk side longitudinal beam 41 is arranged in the trunk along the length direction of the vehicle body, and one side is the first side and the other side is the second side of the two sides of the trunk side longitudinal beam 41 along the length direction of the trunk side longitudinal beam 41, and the first side is used to connect with the side periphery of the vehicle body, and the first step surface 411 and the second step surface 412 are located on the second side of the trunk side longitudinal beam 41, wherein the two sides are not the two ends in the length direction of the trunk side longitudinal beam 41. The second step surface 412 can generally be arranged parallel to the first step surface 411; it should be understood that the second step surface 412 is provided with positioning points and / or limiting points and / or connecting points that are limitedly connected to the side trim 51 and the carpet 52; it should be understood that the first step surface 411 is provided with positioning points and / or limiting points and / or connecting points that are limitedly connected to the side track assembly 7. It should be further explained that the first step surface 411 and the second step surface 412 both provide a standardized installation platform that can adapt to different vehicle models. For example, the first step surface 411 can adapt to the vehicle model with the side track assembly 7 in the trunk, and the second step surface 412 can provide a stable and unified installation base point for the side trim 51 and the carpet 52 in the vehicle model without the side track assembly 7, thereby simplifying the production and installation process, reducing the complexity and cost of developing multiple vehicle models, and facilitating maintenance and replacement. It should be understood that when the trunk side longitudinal beam 41 is installed in the vehicle, at least one of the first step surface 411 or the second step surface 412 will be used, or the first step surface 411 is installed with the side track assembly 7 arranged along the length direction of the vehicle body, or the second step surface 412 is installed with the side trim 51 and the carpet 52 extending thereto, thereby ensuring the versatility of the trunk side longitudinal beam 41 in different vehicle models, so that it can be installed in accordance with various vehicle body structures as needed, greatly improving the production efficiency and the standardization level of parts.

[0087] As an optional embodiment of this case, Fig.13 , 15As shown, an avoidance gap 413 is provided at one end of the trunk side longitudinal beam 41 in the extension direction of the first step surface 411; the side rail mounting assembly 4 also includes a support member 42, and the support member 42 is configured so that when one end of the support member 42 is fixedly installed at the avoidance gap 413, the other end of the support member 42 can just support the side rail assembly 7 fixed on the first step surface 411.

[0088] It should be noted that the avoidance notch 413 is open toward the first side to avoid other structures on the vehicle so as to achieve common use among multiple vehicle models; for example, to avoid structures such as speakers in the trunk. By setting the avoidance notch 413, it can be ensured that the trunk side longitudinal beam 41 will not interfere with these components during installation, ensuring the convenience and reliability of installation, while improving the adaptability and flexibility of the side longitudinal beam. The support member 42 is installed and fixed at the avoidance notch 413 to make up for the lack of support for the side track assembly 7 at the avoidance notch 413, thereby ensuring that when the side track assembly 7 is installed on the first step surface 411, the trunk side longitudinal beam 41 and the support member 42 cooperate with the installation and fixation of the side track assembly 7.

[0089] Furthermore, a mounting surface 4131 is provided at the avoidance notch 413 , and the trunk side longitudinal beam 41 is fixedly connected to the support member 42 via the mounting surface 4131 , for example, via fasteners.

[0090] As an optional embodiment of this case, Figure 13-14 As shown, an extension leg 414 is provided at one end of the trunk side longitudinal beam 41; the upper part of the extension leg 414 is provided with a third mounting point 4143 and / or a third positioning point 4142 for positioning and connecting with the front cross beam 1; the lower part of the extension leg 414 is configured to be able to extend into the limiting hole provided on the front cross beam 1 and be used for connection with the rear floor, such as being connected to the rear floor through the connecting part 4141.

[0091] It should be noted that the extended leg 414 is arranged at one end of the front cross beam 1 on the trunk side longitudinal beam 41 close to the rear floor, and the upper part of the extended leg 414 is provided with a third mounting point 4143 and / or a third positioning point 4142 for positioning and connecting with the front cross beam 1, thereby realizing precise positioning and connection with the front cross beam 1. Since the front cross beam 1 is usually set as a plastic part with slightly weak supporting capacity, in this case, the lower part of the extended leg 414 is able to extend into the limiting hole set on the front cross beam 1 and be directly connected to the rear floor. The rear floor has good strength and rigidity, thereby providing strong support for the connection between the trunk side longitudinal beam 41 and the front cross beam 1, thereby solving the problem of insufficient support of the trunk side longitudinal beam 41 in the vertical or height direction of the vehicle body.

[0092] like Figure 1-3As shown, the present invention also provides a track assembly, including the trunk track mounting assembly, as well as a middle track assembly 6 and a side track assembly 7; the middle track assembly 6 is fixedly mounted on the middle track mounting assembly 3; the side track assembly 7 is fixedly mounted on the side track mounting assembly 4.

[0093] It should be noted that the side track assembly 7 and the side track mounting assembly 4, and the middle track assembly 6 and the middle track mounting assembly 3 are generally detachably connected by fasteners, and the side track assembly 7 and the side track mounting assembly 4 are positioned and connected, and the middle track assembly 6 and the middle track mounting assembly 3 are positioned and connected. Generally, the side track assembly 7 and the middle track in this case are arranged along the length direction of the vehicle body.

[0094] As an optional embodiment of this case, Figure 16-18 As shown, the side track assembly 7 includes a first track assembly 71, a first plug 72 and a first extension edge 73;

[0095] The first plug 72 is detachably connected to the end of the first rail component 71 along a direction perpendicular to the bottom surface of the first rail component 71, and the first plug 72 protrudes outside the first rail component 71 along the length direction of the first rail component 71, and is used to match and press fit on the upper surface of the rear door sill 5; the first extension edge 73 is extended in a direction perpendicular to the length direction of the first rail component 71.

[0096] It should be noted that the bottom surface of the first track assembly 71 is also the installation surface of the first track assembly 71 in the trunk. In this case, it mainly refers to that when the first track assembly 71 is directly or indirectly installed on the rear floor in the trunk, the bottom surface of the first track assembly 71 is the bottom surface in the vertical direction of the vehicle body. The first track assembly 71 can be provided with a first plug 72 at only one end or at both ends, and the first plugs 72 at the two ends can have the same or different structures, and the installation methods can also be different.

[0097] Furthermore, one end of the first rail assembly 71 extends to the rear door sill 5 where the carpet 52 is pressed, and the first plug 72 near one end of the rear door sill 5 is configured to be pressed on the rear door sill 5. The first extension edge 73 that can be pressed by the carpet 52 is provided on the side where the two groups of the first rail assemblies 71 are close to each other. During assembly, the rear door sill 5 is pressed on one edge of the carpet 52; the part of the special first plug 72 extending outside the first rail assembly 71 is pressed on the rear door sill 5, and can also be set to limit the rear door sill 5; the first extension edge 73 of the first rail assembly 71 is pressed underneath by the carpet 52, which can ensure the appearance quality. By providing the first track assembly 71, the objects in the trunk that are connected to the first track assembly 71 are easy to move, thereby improving the convenience of using the vehicle; by providing the first plug 72 at the end of the first track assembly 71, on the one hand, it can limit the bottom of the object moving in the first track assembly 71, and on the other hand, it is beneficial to the mutual restraint between the first track assembly 71, the rear door sill 5, and the carpet 52 of the trunk, ensuring the appearance quality while facilitating assembly, and avoiding the problem of an assembly dead loop when the trunk track mechanism, the rear door sill 5 and the carpet 52 are mutually restrained.

[0098] As an optional embodiment of this case, Figure 16-17 As shown, the first track assembly 71 includes a first outer guide rail 711 and a first inner guide rail 712;

[0099] The first outer guide rail 711 includes a first strip-shaped installation cavity; the first inner guide rail 712 is accommodated in the first installation cavity, and the first outer guide rail 711 and the first inner guide rail 712 are both provided with a first installation point and / or a first positioning point with consistent hole positions; and the first outer guide rail 711 and the first inner guide rail 712 are both provided with a first strip-shaped opening 713 along their own length direction.

[0100] It should be noted that the first inner guide rail 712 and the first outer guide rail 711 are detachably connected. The first outer guide rail 711, as an external support structure, provides a basic framework for the entire first track assembly 71, ensuring the stability of the first track assembly 71; the first inner guide rail 712 is accommodated in the first installation cavity of the first outer guide rail 711, and works in conjunction with the first outer guide rail 711, increasing the overall rigidity of the first track assembly 71 and reducing the risk of deformation under heavy load or bumpy environments. It should be understood that the inner wall of the first installation cavity and the first inner guide rail 712 should be limited in other directions except the length direction of the first track assembly 71, so as to ensure stable installation between the first outer guide rail 711 and the first inner guide rail 712. The first outer rail 711 and the first inner rail 712 are both provided with a first installation point and a first positioning point with consistent hole positions, so that the first outer rail 711 and the first inner rail 712 can be quickly and accurately docked and fixed; at the same time, the consistent hole positions simplify the production and assembly process, improve production efficiency, and also facilitate subsequent maintenance and replacement. The design of the first strip opening 713 facilitates the sliding of the slider in the first track assembly 71, that is, the slider at the bottom of the object extends out of the first inner rail 712 and the first outer rail 711, and the slider can be a sliding structure at the bottom of the storage plate or the bottom of the supported object; at least one flared opening for installing a sliding member is provided along the length direction of the first strip opening 713, wherein the flared opening is provided to facilitate the installation of the slider, and the remaining edges of the first strip opening 713 can play a role in limiting and / or bearing the slider.

[0101] As an optional embodiment of this case, Fig.12 As shown, the middle track assembly 6 includes a second outer rail 61, a second inner rail 62 and a second plug 63;

[0102] The second outer guide rail 61 includes a second strip-shaped installation cavity; the second inner guide rail 62 is accommodated in the second installation cavity, and the second outer guide rail 61 and the second inner guide rail 62 are both provided with second installation points and / or second positioning points with consistent hole positions; the two second plugs 63 are respectively used to seal the two ends of the second outer guide rail 61; and the first outer guide rail 711 and the first inner guide rail 712 are both provided with second strip-shaped openings 64 along their own length directions.

[0103] Furthermore, the middle rail assembly 6 and the side rail assembly 7 are both fixed rails or slide rails. The fixed rails are usually used to fix equipment or furniture, such as the bottom of a refrigerator or a shelf, to facilitate adjustment and positioning. For example, the fixed rails can be used to fix heavier items such as refrigerators and small kitchens in the trunk of a vehicle, and facilitate the installation and removal of refrigerators, small kitchen utensils, etc. The slide rail allows the slider to move along its length direction and is usually used in cabinets or any equipment that requires linear movement. The basic structure of the slide rail includes a guide rail and a slider that constrains the motion trajectory, so as to facilitate taking or placing items from the trunk.

[0104] Further, such as Figure 10-12 As shown, the strip-shaped mounting block 323 is arranged flush with the first rail assembly 71 along its own length direction and / or height direction; and the height direction is the height direction of the rear vehicle body when the positioning bracket 32 ​​is connected to the front cross beam 1 and the rear cross beam 2.

[0105] It should be noted that the combination of the two sets of limiting rib grooves 321 and the strip mounting block 323 provides a precise mounting reference for the middle track assembly 6, so that the middle track assembly 6 can be more accurately installed in the predetermined position, which helps to ensure the accurate alignment between the middle track assembly 6 and the side track assembly 7; at the same time, since the strip mounting block 323 is flush with the middle track assembly 6 along its own length direction and / or height direction, it is beneficial to the overall aesthetics of the middle track mounting assembly 3.

[0106] Furthermore, a connecting piece for fixing the carpet 52 is disposed on the first extension edge 73 .

[0107] In a direction perpendicular to the height of the vehicle, the edge of the carpet 52 is overlapped above the first extension edge 73, and a connector for fixing the carpet 52 is provided on the first extension edge 73; the connector is a Velcro to facilitate detachable connection with the carpet 52. The provision of the first extension edge 73 and the connector facilitates the adaptive installation connection between the side track assembly 7 and other surrounding structural parts, which is beneficial to the structural stability and aesthetics of the trunk.

[0108] Furthermore, the material strength of the first inner guide rail 712 is greater than the material strength of the first outer guide rail 711 .

[0109] Generally, the first outer guide rail 711 is made of aluminum material to form a more beautiful appearance; and the first inner guide rail 712 can be cast by steel material to ensure the structural strength of the first inner guide rail 712.

[0110] Further, such as Figure 6 , 10 As shown, the support assembly 31 includes a mounting bracket 311 and a support component 312;

[0111] The mounting bracket 311 includes a support plate and a front support leg 3111 and a rear support leg 3112 for connecting to the cast aluminum structure of the rear body; the support component 312 is arranged on the support plate and is used to connect and support the positioning bracket 32; when the support assembly 31 is installed on the rear body, at both ends of the support component 312 along the height direction of the body, the width dimension of the end close to the positioning bracket 32 ​​is greater than the width dimension away from the positioning bracket 32; wherein the width dimension is the dimension of the support component 312 along the width direction of the body.

[0112] It should be noted that, by designing the width of the support member 42 to be larger at the end close to the positioning bracket 32, the stability and contact area of ​​the connection with the positioning bracket 32 ​​are increased, thereby providing stronger supporting force and stability, thereby better ensuring that the positioning bracket 32 ​​can remain stable when subjected to external force or heavy load; at the same time, the change in the width of the support member 42 helps to optimize the load distribution. By increasing the width at the end close to the positioning bracket 32, the weight and external force from the middle rail assembly 6 can be more effectively dispersed, and the space occupied by the lower part of the support member 42 and the mounting bracket 311 can be reduced, which is beneficial to the utilization of the space between the middle rail assembly 6 and the side rail assembly 7.

[0113] Further, such as Fig.13 As shown, a plurality of supporting legs 415 are disposed at the lower portion of the trunk side longitudinal beam 41, and a first connecting point 4151 for connecting with the rear floor along the third direction is disposed on the supporting leg 415, which can effectively disperse the pressure in the third direction borne by the trunk side longitudinal beam 41, thereby improving the load-bearing capacity and stability of the trunk side longitudinal beam 41;

[0114] The side of the trunk side longitudinal beam 41 is provided with a second connection point 416 for connecting to the side of the vehicle body along the first direction, which can provide lateral support, enhance the stability of the vehicle when subjected to lateral force, help improve the overall rigidity of the vehicle when turning or suffering a side collision, and reduce the possibility of deformation and damage.

[0115] Furthermore, one end of the trunk side longitudinal beam 41 is provided with a third connection point 417 for connecting to the rear door sill 5 along the second direction; this can effectively enhance the connection strength between the trunk side longitudinal beam 41 and the rear part of the vehicle body, and further ensure the structural stability of the trunk side longitudinal beam 41.

[0116] The first direction, the second direction and the third direction are all different directions. The first connection point 4151, the second connection point 416 and the third connection point 417 are generally provided in multiple numbers to ensure the stability and structural integrity of the trunk side longitudinal beam 41 in all directions, effectively solving the problems of insufficient support, loose connection and weak impact resistance in traditional designs.

[0117] Furthermore, the first direction, the second direction and the third direction are perpendicular to each other, wherein the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction, so as to ensure the stability of the trunk side longitudinal beam 41 in all directions. Through this vertical direction design, the external force can be effectively dispersed and borne in different directions, thereby improving the overall rigidity and safety of the trunk side longitudinal beam 41.

[0118] Further, such as Fig.13 As shown, the trunk side longitudinal beam 41 is a plastic part, and a reinforcement structure 419 and / or a weight-reducing hole 418 is provided on the trunk side longitudinal beam 41 of the plastic part.

[0119] It should be noted that, for example, synthetic plastic materials or non-synthetic plastic materials, specifically, plastic materials such as polypropylene and polyethylene, are used; plastic materials are lighter than sheet metal materials, and plastic parts are in the form of injection molding, which has stronger plasticity than stamping forms and does not have problems such as cracking; under the condition of meeting the layout and installation requirements, plastic parts have more possibilities when making the reinforcement structure 419; for example, the square box-shaped support leg 415 is screwed to the rear floor along the height direction of the vehicle body, the support leg 415 is structurally designed to be sturdy, and the contact area with the vehicle body is large, and the increased contact area can decompose the force of the support leg 415, so that more load is transferred to the rear floor of the vehicle body, reducing the regional force of the support leg 415; combined with the design requirements of the trunk side longitudinal beam 41 itself and the characteristics of plastic molding, the structure of the trunk side longitudinal beam 41 is provided with more bosses and ribs to increase the rigidity of the trunk side longitudinal beam 41, and a weight reduction hole 418 is opened in the area where the trunk side longitudinal beam 41 is not stressed, which can reduce the weight of the trunk side longitudinal beam 41.

[0120] like Figure 3 As shown, the present invention provides a vehicle, comprising the track assembly.

[0121] In summary, the present invention effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0122] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may 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 a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A trunk rail mounting assembly, It is characterized in that include: A front crossbeam, arranged along a first direction; The side track mounting components are arranged along the second direction, and at least two of the side track mounting components are arranged in parallel and spaced apart in the first direction; one end of each of the side track mounting components is positioned and connected to the front cross beam, and the position of each of the side track mounting components away from the front cross beam is fixedly connected through a rear door sill and / or a rear cross beam arranged along the first direction.

2. The trunk rail mounting assembly according to claim 1, It is characterized in that A middle track installation assembly arranged along the second direction is arranged between the two side track installation assemblies, and two ends of the middle track installation assembly are respectively positioned and connected with the front cross beam and the rear cross beam.

3. The trunk rail mounting assembly according to claim 1, It is characterized in that The distance between the two side track mounting assemblies is greater than a first preset distance, so that the side track mounting assemblies are arranged adjacent to a first direction edge of the rear floor, where the first direction is a vehicle body width direction.

4. The trunk rail mounting assembly according to claim 2, It is characterized in that The mid-rail mounting assembly includes a front leg and a rear leg for connecting to the vehicle body structure; The distance between the front supporting leg and the rear supporting leg along the second direction is greater than a second preset distance, and the second direction is the length direction of the vehicle body.

5. The trunk rail mounting assembly according to claim 2, It is characterized in that The front crossbeam comprises a crossbeam body and a multiplex support that can be mounted on the crossbeam body in a forward or reverse direction; the multiplex support comprises: Support body; A first mounting portion, disposed on the support body and used for fixed connection with the beam body in a forward or reverse direction; The first positioning portion is arranged at one end of the support body and can be used for positioning and connecting with the middle track mounting assembly.

6. The trunk rail mounting assembly according to claim 2, It is characterized in that The middle track installation assembly includes: A support assembly, used for being fixedly mounted on the rear vehicle body along the length direction of the vehicle body; A positioning bracket is arranged on the support assembly, and two ends of the positioning bracket are respectively used for positioning and connecting with the front crossbeam and the rear crossbeam, and a side of the positioning bracket away from the support assembly is used for installing a middle track assembly.

7. The trunk rail mounting assembly according to claim 6, It is characterized in that Two groups of limiting rib grooves are provided along the length direction of the positioning bracket, which are used to match and limit the corresponding middle rail components respectively; Both sides of the positioning bracket are provided with folded edges, and the folded edges are arranged along the length direction of the positioning bracket; The positioning bracket is provided with a strip-shaped mounting block, and the strip-shaped mounting block is matched and mounted between the two groups of the limiting rib grooves.

8. The trunk rail mounting assembly according to claim 1, It is characterized in that The side track mounting assembly includes a trunk side longitudinal beam on one side for connecting to the side wall of the vehicle body, and the other side of the trunk side longitudinal beam is provided with: A first step surface is provided along the length direction of the trunk side longitudinal beam and is used for installing a side guide rail assembly; A second step surface is arranged non-coplanar with the first step surface along the length direction of the trunk side longitudinal beam and is used for installing the side trim and carpet extending thereto; The trunk side longitudinal beam is configured such that, when the trunk side longitudinal beam is installed in the trunk, at least one of the first step surface or the second step surface can be installed in a matching manner with a corresponding structure.

9. The trunk rail mounting assembly according to claim 8, It is characterized in that An avoidance notch is provided at one end of the trunk side longitudinal beam in the extension direction of the first step surface; The side rail installation assembly also includes a support member, and the support member is configured so that when one end of the support member is fixedly installed at the avoidance gap, the other end of the support member can just support the side rail assembly fixed on the first step surface.

10. The trunk rail mounting assembly according to claim 8, It is characterized in that An extension leg is provided at one end of the trunk side longitudinal beam; The upper portion of the extended leg is provided with a first mounting point and / or a first positioning point for positioning and connecting with the front cross beam; The lower portion of the extended support leg is configured to be able to extend into a limiting hole provided on the front cross beam for connection with the rear floor.

11. A track assembly, It is characterized in that include: The trunk rail mounting assembly according to any one of claims 1 to 10, and The side track assembly is fixedly mounted on the side track mounting assembly.

12. The track assembly according to claim 11, It is characterized in that The side track assembly includes a first track assembly; A first plug is detachably connected to an end of the first track component in a direction perpendicular to the bottom surface of the first track component, and the first plug protrudes outside the first track component in a length direction of the first track component; The first extension edge is extended and arranged in a direction perpendicular to the length of the first track component.

13. A vehicle, It is characterized in that A track assembly comprising any one of claims 11-12.