Luggage wheel mounting structure

Abstract

The utility model discloses a luggage wheel mounting structure which comprises a wheel seat and a luggage shell, the wheel seat is provided with at least one main positioning block, and the luggage shell is correspondingly provided with a through hole for the main positioning block to penetrate into the luggage shell. The wheel seat is fixed at the bottom of the luggage shell after the main positioning block penetrating into the luggage shell is tensioned upwards in the vertical direction through a tensioning assembly, and a fastener used for limiting and fixing the tensioned wheel seat and luggage shell is arranged between the wheel seat and the tensioning assembly in a matched mode. Only one fastener is needed for fixing, the installation efficiency is improved, and the installation cost is reduced; meanwhile, the wheel seat is fixed to the bottom of the luggage shell after the main positioning block penetrating into the luggage shell is tensioned upwards in the vertical direction through the tensioning assembly, and compared with a structure in the prior art that an installer needs to hold and press the wheel seat or the luggage shell by hand for installation, installation of the installer is greatly facilitated; and the mounting quality and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a luggage wheel mounting structure. Background Technology

[0002] As everyday essentials, bags and suitcases are constantly evolving in structure and style. The installation structure of the wheels mounted on the bottom of bags and suitcases is also relatively mature. For example, Chinese utility model patent number 2018219426902 discloses a wheel for bags and suitcases. The entire wheel includes a wheel seat, a supporting axle, and a wheel body. The wheel body includes a wheel core, a wheel frame, a wheel skin, and a wheel cover. A supporting axle is located below the wheel seat. The wheel body is equipped with the wheel core, wheel frame, wheel skin, and wheel cover sequentially from the inside out. A mesh reinforcing rib is also provided on the supporting surface of the wheel seat. The mesh reinforcing rib has three horizontal ribs and ten vertical ribs. A screw hole post is also provided at the upper end of the wheel seat, and five wing-shaped reinforcing ribs are provided around the screw hole post. The effects are as follows: the addition of mesh reinforcing ribs to the wheel seat bearing surface enhances the stability of the contact between the wheel seat and the housing; the addition of three horizontal and ten vertical reinforcing ribs increases the impact resistance; and the addition of five wing-shaped reinforcing ribs around the wheel seat screw hole post enhances the stability of the screw hole post and makes it less prone to breakage.

[0003] However, the installation of the aforementioned luggage wheels requires aligning the wheel seat with the corner of the luggage shell. The installer then drives five screws through the luggage shell and into the screw holes on the wheel seat to secure it. This installation method and structure leads to the following technical problems: the installer needs to manually guide the wheel seat to the corner of the luggage shell for pre-positioning, which is prone to deviation, resulting in misalignment of the wheel seat after screwing and poor installation quality; five screws need to be driven into the screw holes sequentially, and the installer needs to hold the wheel seat or press down on the luggage shell during the screwing process to ensure installation accuracy, resulting in low installation efficiency; at least five screws are needed to position one wheel seat, and at least five screw holes need to be machined on the wheel seat, increasing manufacturing costs. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art.

[0005] This application provides a luggage wheel mounting structure, including a wheel seat and a luggage shell. The wheel seat is characterized by having at least one main positioning block, and the luggage shell has corresponding through holes for the main positioning block to pass through. The wheel seat is fixed to the bottom of the luggage shell after the main positioning block is vertically pulled upwards by a tensioning assembly. Fasteners are provided between the wheel seat and the tensioning assembly to limit and fix the tensioned wheel seat and luggage shell.

[0006] Preferably, the tensioning assembly includes a mounting base and a guide groove disposed on the mounting base. The guide groove has an inclined surface whose slope height gradually increases as the groove opening moves inward. The positioning block has a force-bearing inclined surface that cooperates with the inclined surface.

[0007] Preferably, at least two main positioning blocks are provided, and the distribution direction of the at least two main positioning blocks is set to be parallel to the angle bisector of the wheel seat.

[0008] Preferably, at least two main positioning blocks are symmetrically arranged on the wheel seat along the angle bisector of the wheel seat.

[0009] Preferably, the mating end of the fastener is disposed on the wheel seat, the mating end of the fastener is a threaded hole or a nut, the mounting seat is provided with a fastening hole for the fastener to pass through, and the fastening direction, mating end and fastening hole of the fastener are all disposed on the angle bisector of the wheel seat, so that the fastener brings the wheel seat and the mounting seat closer to each other and squeezes and fastens the bag shell during the fastening installation process.

[0010] Preferably, the wheel seat is further provided with a three-axis synchronous coordinating fixing component that simultaneously presses the inner walls of both sides of the bag shell in the horizontal direction during the process of the mounting seat being tightened in the vertical direction.

[0011] Preferably, the three-axis synchronous co-fixing assembly includes protrusions on the mounting base facing the inner walls of both sides of the bag shell. The protrusions extend horizontally outward from the side walls of the mounting base. During the fastening process, the wheel seat is pulled vertically upward by the fasteners and the protrusions on the mounting base simultaneously press against the inner wall of the bag shell in the horizontal direction, so that the wheel seat is tightly fixed to the outer surface of the bag shell.

[0012] Preferably, at least two main positioning blocks are arranged in the middle position on the wheel seat, and at least one auxiliary positioning block is also provided on the wheel seat. The auxiliary positioning block is installed on one side of the bag wheel axle of the wheel seat. The bag shell is provided with auxiliary through holes for the auxiliary positioning blocks to pass through upward. The mounting base is provided with an auxiliary inclined surface with a gradually increasing slope height. The auxiliary positioning block is provided with a force-bearing auxiliary inclined surface that cooperates with the auxiliary inclined surface.

[0013] Preferably, at least two sub-positioning blocks are provided, and the distribution direction of the at least two sub-positioning blocks is set to be parallel to the angle bisector of the wheel seat.

[0014] Preferably, at least two auxiliary positioning blocks are symmetrically arranged on the left and right sides of the angle bisector of the wheel seat at the axle of the luggage wheel seat.

[0015] Preferably, the longitudinal section of the main positioning block is T-shaped.

[0016] Compared to the existing technology that requires at least five screws for fixing, this application only requires one fastener for fixing, which improves installation efficiency and reduces installation costs. At the same time, the wheel seat is fixed to the bottom of the bag shell by vertically pulling the main positioning block inserted into the bag shell through the tensioning component. Compared with the existing technology that requires the installer to hold and press the wheel seat or bag shell for installation, this greatly facilitates the installation and improves the installation quality and accuracy.

[0017] The beneficial effects of this invention will be explained in detail in the embodiments, thereby making the beneficial effects more obvious. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the specific structure of an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the wheel seat in an embodiment of this application.

[0020] Figure 3 This is a three-dimensional structural diagram of the wheel seat from another perspective in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting base in the embodiments of this application.

[0022] Figure 5 This is a schematic diagram of the main structure of the mounting base in an embodiment of this application.

[0023] Figure 6 This is a schematic diagram of the three-dimensional assembly structure of the wheel seat and mounting base in an embodiment of this application.

[0024] Figure 7 This is a three-dimensional structural diagram of the wheel seat and mounting base assembly from another perspective in the embodiments of this application.

[0025] Figure 8 This is a schematic diagram of the exploded three-dimensional structure in an embodiment of this application.

[0026] Figure 9 This is a schematic diagram of the exploded three-dimensional structure from another perspective in an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0030] Example 1:

[0031] like Figure 1-9 As shown, a luggage wheel mounting structure includes a wheel seat 1 and a luggage shell 2. In a specific embodiment of this utility model, the wheel seat 1 is provided with at least one main positioning block 3, and the luggage shell 2 is provided with a corresponding through hole 4 for the main positioning block 3 to pass through into the luggage shell 2. The wheel seat 1 is fixed to the bottom of the luggage shell 2 after the main positioning block 3 inserted into the luggage shell 2 is vertically pulled upward by a tensioning assembly. Fasteners for limiting and fixing the wheel seat 1 and the luggage shell 2 after tensioning are provided between the wheel seat 1 and the tensioning assembly.

[0032] In this embodiment of the luggage wheel mounting structure described above, the at least one main positioning block 3 can be distributed at any position on the upper surface of the wheel seat 1, or it can be set at the center of the upper surface of the wheel seat 1. This can improve its stress stability. When installing the luggage wheel, the side of the wheel seat 1 with the main positioning block 3 faces the bottom of the luggage shell 2, so that the main positioning block 3 passes upward through the through hole 4 opened on the luggage shell 2. Then, by using the tensioning component, the main positioning block 3 inserted into the luggage shell 2 is pulled vertically upward, driving the wheel seat 1 smoothly. The wheel is inserted into the corner of the bag shell 2, and the wheel seat 1 and bag shell 2 are fixed and limited by the fastener set between the wheel seat 1 and the tensioning component. The installation of the bag wheel can be completed. Compared with the prior art, this application only requires one fastener to install the wheel seat 1 of the bag wheel. The installation efficiency is high. The tensioning component is used to pull and tighten in the vertical direction. The installer does not need to press the bag shell 2 or the wheel seat 1. This further facilitates the installation of the bag wheel. The installation is convenient and quick, and the production cost is reduced.

[0033] Example 2:

[0034] The difference from Embodiment 1 is that, in addition to including the structural features of the aforementioned embodiments, in the specific embodiments of this utility model, such as... Figure 9 As shown, the tensioning assembly includes a mounting base 11 and a guide groove 12 disposed on the mounting base 11. The guide groove 12 is provided with an inclined surface 13 whose slope height gradually increases as the groove opening moves inward. The positioning block 3 is provided with a force-bearing inclined surface 14 that cooperates with the inclined surface 13.

[0035] In the specific use of the above-mentioned luggage wheel installation structure, the side of the wheel seat 1 with the main positioning block 3 faces the bottom of the luggage shell 2, so that the main positioning block 3 passes upward through the through hole 4 opened on the luggage shell 2. Then, the guide groove 12 on the mounting base 11 is aligned with the main positioning block 3 at the bottom inside the luggage shell 2, so that the main positioning block 3 slides into the guide groove 12. During this sliding process, the inclined surface 13 cooperates with the force-bearing inclined surface 14, so that the main positioning block 3 is pushed laterally by the mounting base 11, causing the wheel seat 1 to rise and move upward close to the luggage shell 2. This causes the main positioning block 3, which passes through the luggage shell 2, to be pulled vertically upward, so that the wheel seat 1 can be smoothly inserted into the corner of the luggage shell 2. The fasteners set between the wheel seat 1 and the tensioning assembly are used to limit and fix the tensioned wheel seat 1 and the luggage shell 2, thus completing the installation of the luggage wheel.

[0036] Example 3:

[0037] The difference from Embodiment 2 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the utility model, such as... Figure 8 As shown, at least two main positioning blocks 3 are provided, and the distribution direction of the at least two main positioning blocks 3 is set to be parallel to the angle bisector of the wheel seat 1.

[0038] In the actual production and application of luggage wheels, it is best to have two or more main positioning blocks 3. If only one is used, as in Example 1, the lateral cross-sectional width of the main positioning block 3 needs to be appropriately increased to withstand greater forces. In this embodiment, at least two main positioning blocks 3 are used, and their distribution direction is set to be parallel to the angle bisector of the wheel seat 1. The advantage of this structure is that the side of the wheel seat 1 with the main positioning blocks 3 faces the bottom of the luggage shell 2, allowing the main positioning blocks 3 to pass upwards through the perforation 4 on the luggage shell 2. Subsequently, the guide groove 12 on the mounting base 11 is aligned with the bottom of the luggage shell 2. The quasi-main positioning block 3 is slid into the guide groove 12. During the process of the mounting seat 11 pushing horizontally towards the corner of the bag shell 2, the main positioning block 3 inserted into the bag shell 2 is pulled vertically upward. That is, in this embodiment, the mounting seat 11 first aligns the two main positioning blocks 3 with the two guide grooves 12 inside the bag shell 2. Due to the setting position and orientation of the two main positioning blocks 3, the mounting seat 11 is pushed horizontally towards the corner of the bag shell 2. As the mounting seat 11 moves into the corner of the bag shell 2, the wheel seat 1 is pulled up and tightened. This structure further improves the convenience and stability of installation.

[0039] Example 4:

[0040] The difference from Embodiment 3 is that, in addition to including the structural features of the aforementioned embodiments, in the specific embodiments of this utility model, such as... Figure 8 As shown, at least two main positioning blocks 3 are symmetrically arranged on the wheel seat 1 along the angle bisector of the wheel seat 1.

[0041] The structure of at least two main positioning blocks 3 is symmetrically arranged about the angle bisector of the wheel seat 1. This structure is used to further improve the uniformity of force on the at least two main positioning blocks 3, thereby improving the stability after installation.

[0042] Example 5:

[0043] The difference from Embodiment 4 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the utility model, such as... Figure 1 As shown, the mating end of the fastener is set on the wheel seat 1. The mating end of the fastener is a threaded hole or a nut. The mounting base 11 is provided with a fastening hole for the fastener to pass through. The fastening direction, mating end and fastening hole of the fastener are all set on the angle bisector of the wheel seat 1, so that the wheel seat 1 and the mounting base 11 are brought close to each other and the box shell 2 is squeezed and fastened during the fastening installation process.

[0044] In this embodiment, the installation method differs from the prior art in that the side of the wheel seat 1 with the main positioning block 3 faces the bottom of the bag shell 2, allowing the main positioning block 3 to pass upward through the through hole 4 on the bag shell 2. Then, the guide groove 12 on the mounting base 11 is aligned with the main positioning block 3 at the bottom inside the bag shell 2, causing the main positioning block 3 to slide into the guide groove 12. This pulls the main positioning block 3, which has penetrated the bag shell 2, vertically upward. During the latter half of the process of pushing the mounting base 11 towards the corner of the bag shell 2, the fasteners (not shown in the figure) are... The fastener passes through the central fastening hole (shown in the figure) and enters the mating end of the wheel seat 1. As the fastener is gradually rotated, it brings the wheel seat 1 and the mounting base 11 closer together and compresses and tightens the bag shell 2 during the fastening process. The relative fixation between the wheel seat 1, the bag shell 2 and the mounting base 11 can be achieved with a single fastener. Compared with the existing installation structure and method, this greatly simplifies the installation, improves the installation efficiency, and ensures stable installation with uniform force distribution. It also eliminates the need for the installer to press down on the bag shell 2 or the wheel seat 1 during installation, making it highly practical.

[0045] Example 6:

[0046] The difference from Embodiment 5 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the present invention, the wheel seat 1 is also provided with a three-axis synchronous cooperative fixing component that simultaneously presses the inner walls of both sides of the case shell 2 in the horizontal direction while the mounting seat 11 is being tightened in the vertical direction.

[0047] In a specific embodiment of this utility model, the three-axis synchronous cooperative fixing component includes protrusions 15 disposed on the mounting base 11 facing the inner walls of both sides of the luggage shell 2. The protrusions 15 protrude horizontally outward from the side walls of the mounting base 11. During the fastening installation process, the wheel seat 1 is pulled vertically upward and the protrusions 15 on the mounting base 11 simultaneously press against the inner wall of the luggage shell 2 in the horizontal direction, so that the wheel seat 1 is tightly fixed to the outer surface of the luggage shell 2.

[0048] like Figure 1 and Figure 6 As shown, Figure 1 This is an image showing the finished look of the bag / case shell 2. Figure 6 This is a separate installation diagram for wheel seat 1 and mounting base 11. The specific principle is as follows:

[0049] With the side of the wheel seat 1 equipped with the main positioning block 3 facing the bottom of the luggage shell 2, the main positioning block 3 passes upward through the through hole 4 on the luggage shell 2. Then, align the guide groove 12 on the mounting base 11 with the main positioning block 3 at the bottom inside the luggage shell 2, allowing the main positioning block 3 to slide into the guide groove 12. This causes the main positioning block 3, inserted into the luggage shell 2, to be vertically pulled upward. During the latter half of the process of the mounting base 11 pushing towards the corner of the luggage shell 2, the fastener (not shown in the figure) passes through the middle... The fastening hole (shown in the figure) is inserted into the mating end of the wheel seat 1. As the fastener is gradually rotated, the wheel seat 1 and the mounting base 11 are brought closer together during the fastening process, and the fastener compresses and tightens the bag shell 2. Furthermore, the protrusions 15 on the mounting base 11 facing the inner walls of the bag shell 2 collide with the bag shell 2 before the outer walls of the mounting base 11. As the fastener rotates towards the corner of the bag shell 2, the mounting base 11 is pulled vertically. The mounting base 11 is tightened, and the inner walls of both sides of the bag shell 2 are pressed simultaneously in two horizontal directions. The protrusion 15 on the mounting base 11 deforms, thereby further improving the installation stability between the mounting base 11, the wheel seat 1, and the bag shell 2. If the thickness at the corner of the bag shell 2 is small or the material is soft, the corner of the bag shell 2 and the protrusion 15 deform together, making the installation more stable. The main function of the three-axis synchronous cooperative fixing component is to press in two horizontal directions. It only needs to reach the inner wall of the bag shell 2 before the two sides of the mounting base 11. The structure of the protrusion 15 can be strip-shaped or block-shaped. As long as the corresponding protrusion structure is set on the two side walls, this function can be achieved. This function is combined with the installation position of the fastener. The structure of the main positioning block 3 cooperates with the tensioning component in embodiment 2, thereby realizing the three-axis synchronous cooperative fixing function of pressing the inner walls of both sides of the bag shell 2 simultaneously in two horizontal directions while the mounting base 11 is tightened in the vertical direction. Furthermore, a single fastener is sufficient to achieve relative fixation between the wheel seat 1, the case shell 2, and the mounting base 11, ensuring stable fixation.

[0050] Example 7:

[0051] The difference from Embodiment 6 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the present invention, at least two main positioning blocks 3 are disposed in the middle position on the wheel seat 1, and at least one secondary positioning block 5 is also disposed on the wheel seat 1. The at least one secondary positioning block 5 is installed on one side of the wheel seat 1 at the axle of the luggage wheel. The luggage shell 2 is provided with a secondary through hole 6 for the secondary positioning block 5 to pass through upward. The mounting base 11 is provided with a secondary inclined surface 7 with a gradually increasing slope height. The secondary positioning block 5 is provided with a force-bearing secondary inclined surface 8 that cooperates with the secondary inclined surface 7.

[0052] like Figure 4As shown, in practical applications, it will be found that the main stress points of the luggage wheels are concentrated at the wheel axle, and the existing wheel seat 1 structure is as follows: Figure 2 As shown, the axle of the luggage wheel is located at the outer corner of the wheel seat 1, and holes and reinforcing ribs are generally provided around the axle at this corner. In order to adapt to most wheel seat 1 structures, at least one secondary positioning block 5 is specially provided in this example. The at least one secondary positioning block 5 is installed on one side of the axle of the luggage wheel seat 1, and a secondary through hole 6 is provided on the luggage shell 2 for the secondary positioning block 5 to pass through upward. In order to realize the installation principle in embodiment 7 at the axle of the luggage wheel, a secondary inclined surface 7 with a gradually increasing slope height is provided on the mounting base 11, and a force-bearing secondary inclined surface 8 that cooperates with the secondary inclined surface 7 is provided on the secondary positioning block 5.

[0053] In this embodiment, during installation, the side of the wheel seat 1 with the main positioning block 3 faces the bottom of the bag shell 2, so that the main positioning block 3 passes upward through the through hole 4 on the bag shell 2, and the secondary positioning block 5 passes upward through the secondary through hole 6. Then, the guide groove 12 on the mounting base 11 is aligned with the main positioning block 3 at the bottom inside the bag shell 2, so that the main positioning block 3 slides into the guide groove 12. The force-bearing inclined surface 8 on the mounting base 11 slides and receives force in cooperation with the secondary inclined surface 7. The inclined surface 13 cooperates with the force-bearing inclined surface 14, so that the main positioning block 3 and the secondary positioning block 5 inserted into the bag shell 2 are pulled vertically upward and tightened. In the second half of the process of the mounting base 11 pushing horizontally towards the corner of the bag shell 2, the fastener (not shown in the figure) passes through the middle. The fastening hole (shown in the figure) is inserted into the mating end of the wheel seat 1. As the fastener is gradually rotated, the wheel seat 1 and the mounting base 11 are brought closer together during the fastening process, and the fastener presses and tightens the bag shell 2. Furthermore, the protrusions 15 on the mounting base 11 facing the inner walls of the bag shell 2 collide with the bag shell 2 before the outer walls of the mounting base 11. As the fastener rotates towards the corner of the bag shell 2, the mounting base 11 is tightened in the vertical direction, and the inner walls of the bag shell 2 are pressed simultaneously in the horizontal direction. The protrusions 15 on the mounting base 11 deform, thereby further improving the installation stability between the mounting base 11, the wheel seat 1, and the bag shell 2.

[0054] Example 8:

[0055] The difference from Embodiment 7 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the invention, such as... Figure 8 As shown, at least two sub-positioning blocks 5 are provided, and the distribution direction of the at least two sub-positioning blocks 5 is set to be parallel to the angle bisector of the wheel seat 1.

[0056] In a specific embodiment of this utility model, at least two auxiliary positioning blocks 5 are symmetrically arranged on the left and right sides of the angle bisector of the wheel seat 1 at the axle of the luggage wheel of the wheel seat 1.

[0057] The above structure is also intended to further improve the relative stability of the installation between the mounting base 11 and the wheel seat 1, and to make the force during installation more stable.

[0058] Example 9:

[0059] The difference from Embodiment 7 is that, in addition to including the structural features of the aforementioned embodiments, in this specific embodiment of the present invention, the longitudinal section of the main positioning block 3 is T-shaped.

[0060] from Figure 2 and Figure 3 It can be clearly seen that the main positioning block 3 is different from the secondary positioning block 5. This is because the main positioning block 3 needs to bear the force while also adapting to the small space of the luggage wheel itself. The space at the axle of the luggage wheel is smaller than the space in the middle position. Therefore, the secondary positioning block 5 is only provided with a force-bearing inclined surface 8 on one side, while the main positioning block 3 is provided with force-bearing inclined surfaces 14 on both sides, so that the longitudinal section of the secondary positioning block 5 is shaped like a 7, while the longitudinal section of the main positioning block 3 is shaped like a T.

[0061] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0062] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A luggage wheel mounting structure comprising a wheel seat (1) and a luggage shell (2), characterized in that, The wheel seat (1) is provided with at least one main positioning block (3), and the luggage shell (2) is correspondingly provided with a through hole (4) for the main positioning block (3) to pass into the luggage shell (2), the wheel seat (1) is fixed at the bottom of the luggage shell (2) by vertically pulling the main positioning block (3) passing into the luggage shell (2) through a tensioning assembly, and a fastener is arranged between the wheel seat (1) and the tensioning assembly to limit and fix the wheel seat (1) and the luggage shell (2) after being pulled.

2. The luggage wheel mounting structure according to claim 1, wherein The tensioning assembly comprises a mounting seat (11) and a guide sliding groove (12) arranged on the mounting seat (11), the guide sliding groove (12) is provided with an inclined surface (13) with a gradually rising slope height towards the inside of the groove, and the positioning block (3) is provided with a stress inclined surface (14) matched with the inclined surface (13).

3. The luggage wheel mounting structure according to claim 2, wherein The main positioning block (3) is provided with at least two blocks, and the distribution direction of the at least two main positioning blocks (3) is arranged to be parallel to the angle bisector of the wheel seat (1).

4. The luggage wheel mounting structure according to claim 3, wherein The at least two main positioning blocks (3) are symmetrically arranged on the wheel seat (1) along the angle bisector of the wheel seat (1).

5. The wheel mounting structure for luggage cases according to any one of claims 2 to 4, wherein The matching end of the fastener is arranged on the wheel seat (1), the matching end of the fastener is a threaded hole or a nut, the mounting seat (11) is provided with a fastening hole for the fastener to pass through, and the fastening direction, the matching end and the fastening hole of the fastener are arranged on the angle bisector of the wheel seat (1), so that the wheel seat (1) and the mounting seat (11) are close to each other and the luggage shell (2) is extruded and fastened during the fastening and installation process.

6. The luggage wheel mounting structure according to claim 5, wherein The wheel seat (1) is further provided with a three-axis synchronous cooperative fixing assembly for synchronously pressing the inner walls of the luggage shell (2) on both sides in two horizontal directions during the process of vertically pulling the mounting seat (11).

7. The luggage wheel mounting structure according to claim 6, wherein The three-axis synchronous cooperative fixing assembly comprises a protrusion (15) arranged on the mounting seat (11) towards the inner walls of the luggage shell (2) on both sides, the protrusion (15) partially protrudes outward from the two side walls of the mounting seat (11), and the wheel seat (1) is vertically pulled upwards and extruded by the protrusion (15) on the mounting seat (11) to press the inner walls of the luggage shell (2) in the horizontal direction during the fastening and installation process of the fastener, so that the wheel seat (1) is tightly fastened to the outer surface of the luggage shell (2).

8. The luggage wheel mounting structure according to claim 5, wherein The at least two main positioning blocks (3) are arranged on the middle position of the wheel seat (1), and the wheel seat (1) is further provided with at least one secondary positioning block (5), the at least one secondary positioning block (5) is arranged on one side of the luggage wheel shaft of the wheel seat (1), the luggage shell (2) is provided with a secondary through hole (6) for the secondary positioning block (5) to pass upwards, the mounting seat (11) is provided with a secondary inclined surface (7) with a gradually rising slope height, and the secondary positioning block (5) is provided with a stress secondary inclined surface (8) matched with the secondary inclined surface (7).

9. The luggage wheel mounting structure according to claim 8, wherein The secondary positioning block (5) is provided with at least two blocks, and the distribution direction of the at least two secondary positioning blocks (5) is arranged to be parallel to the angle bisector of the wheel seat (1).

10. The luggage wheel mounting structure according to claim 9, wherein The at least two secondary positioning blocks (5) are symmetrically arranged on the luggage wheel shaft of the wheel seat (1) along the angle bisector of the wheel seat (1).

11. The wheel mounting structure for luggage according to claim 1 or 2 or 3 or 4, wherein The longitudinal section of the main positioning block (3) is T-shaped. The longitudinal section of the main positioning block (3) is T-shaped.

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