fastening component

Abstract

The disclosure provides a fastening component, comprising: a base part; a threaded connection part, wherein a sealing structure is arranged on the side of the base part facing the threaded connection part, the sealing structure comprising a first barrier wall and a second barrier wall which are elastic and annular, the first barrier wall and the second barrier wall extending around the threaded connection part, and the second barrier wall being located on the inner side of the first barrier wall in the radial direction of the threaded connection part. The fastening component in the disclosure not only can achieve good waterproof function, but also improves the overall structural stability.

Description

Technical Field

[0001] This disclosure relates to the technical field of vehicle components, and more specifically, to a fastening component used in a vehicle. Background Technology

[0002] The background description provided herein is intended to present the general context of this disclosure. To the extent described in this background section, the work of the currently identified inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly considered to be prior art to this disclosure.

[0003] Vehicles have various types of lighting, and the installation of the headlight panels requires quick and accurate installation, while also requiring waterproofing. Currently, the space available for headlight installation is limited, and there are still significant obstacles to achieving the above objectives. Utility Model Content

[0004] Through in-depth research, the inventors of this disclosure have discovered that traditional sealing and fastening solutions typically rely on a combination of rubber gaskets and bolt-nut pairs to achieve a seal. Firstly, the split structure leads to cumbersome assembly procedures, requiring operators to sequentially position the gasket, insert the bolt, and tighten the nut, resulting in low efficiency and a high risk of seal failure due to gasket misalignment. Secondly, rubber materials are prone to permanent deformation or aging and cracking under long-term compression, causing the sealing performance to rapidly decline over time. Furthermore, standard threaded pairs are prone to self-loosening under mechanical vibration, requiring additional elastic washers or threadlockers to maintain preload, further increasing maintenance costs. To address these issues, there is an urgent need for an integrated, highly reliable, and quick-assembly / disassembly-supporting waterproof fastening solution.

[0005] The purpose of this disclosure is to address at least one aspect of the aforementioned problems and / or defects existing in the prior art.

[0006] This disclosure provides a fastening component that may include: a base portion; and a threaded connection portion. A sealing structure may be provided on the side of the base portion facing the threaded connection portion. The sealing structure may include a first and a second resilient, annular retaining wall extending around the threaded connection portion, wherein the second retaining wall may be located radially inside the first retaining wall.

[0007] According to an exemplary embodiment of the present disclosure, the first retaining wall and the second retaining wall are axially higher than the engagement end face of the end of the threaded connection portion.

[0008] According to an exemplary embodiment of this disclosure, the first retaining wall may be higher than the second retaining wall in the axial direction of the threaded connection portion.

[0009] According to an exemplary embodiment of the present disclosure, the base portion may further include a boss located radially inside the sealing structure of the threaded connection portion, the boss being separated from the sealing structure radially by an annular groove of the threaded connection portion, and the second retaining wall being axially higher than the end face of the boss of the threaded connection portion.

[0010] According to an exemplary embodiment of the present disclosure, when the fastening component is in a locked working state, the top surfaces of the first and second retaining walls can be compressed axially in the threaded connection portion to be in the same plane position as the engagement end face of the threaded connection portion.

[0011] According to an exemplary embodiment of the present disclosure, when the fastening component is in a locked working state, the amount of deformation of the first retaining wall in the axial direction of the threaded connection portion can be greater than the amount of deformation of the second retaining wall in the axial direction of the threaded connection portion.

[0012] According to an exemplary embodiment of the present disclosure, the width of the first retaining wall in the radial direction of the threaded connection portion may be smaller than the width of the second retaining wall in the radial direction of the threaded connection portion.

[0013] According to an exemplary embodiment of the present disclosure, the four sides of the outer periphery of the base portion may each be provided with a guide groove that is radially recessed along the threaded connection portion.

[0014] According to an exemplary embodiment of the present disclosure, the threaded connection portion protrudes and extends from the base portion, and is provided with threads on at least a portion of the outer peripheral surface.

[0015] According to an exemplary embodiment of the present disclosure, the threaded connection portion includes an end embedded in a base portion. The end may include a flange portion and a torsion reinforcement portion. The outer peripheral surface of the torsion reinforcement portion may be provided with a toothed structure embedded in the base portion.

[0016] Preferably, the toothed structure is spline-shaped.

[0017] According to an exemplary embodiment of the present disclosure, recessed tooth-like structures may be provided in the flange portion and the torsion enhancement portion.

[0018] Preferably, the tooth-like structure is in the shape of a plum blossom groove.

[0019] According to an exemplary embodiment of this disclosure, the hardness of the material of the threaded connection portion may be higher than the hardness of the material of the base portion.

[0020] According to an exemplary embodiment of this disclosure, the base portion may be made of plastic, and the threaded connection portion may be made of metal.

[0021] The fastening component disclosed herein provides more durable waterproof performance under dynamic loads or complex operating conditions. Compared to the screw and nut combination in the prior art, the fastening component of this disclosure integrates metal and plastic components into a single unit, which not only simplifies the manufacturing process and reduces production costs but also reduces maintenance difficulty. The fastening component of this disclosure improves overall structural stability by integrating components of different materials into a single structure.

[0022] These and other aspects of this disclosure will become apparent from the following description of preferred embodiments in conjunction with the accompanying drawings and description, but variations and modifications may be made thereto without departing from the spirit and scope of the novel concept of this disclosure. Attached Figure Description

[0023] This disclosure will be more fully understood from the detailed description and accompanying drawings. These drawings illustrate one or more embodiments of this disclosure and, together with the written description, serve to explain the principles of this disclosure. Where possible, the same reference numerals are used throughout the drawings to denote the same or similar elements of the embodiments, and wherein:

[0024] Figure 1 This is a perspective structural schematic diagram of a fastening component according to an exemplary embodiment of the present disclosure, showing a component to be installed, such as a portion of a fixing plate.

[0025] Figure 2 This is another perspective view of a fastening component according to an exemplary embodiment of the present disclosure, wherein the component to be installed is not shown in order to clearly show the sealing structure.

[0026] Figure 3 This is a three-dimensional structural schematic diagram of a threaded connection portion according to an exemplary embodiment of the present disclosure.

[0027] Figure 4 This is a schematic cross-sectional view of a threaded connection portion according to an exemplary embodiment of the present disclosure.

[0028] Figure 5 This is a schematic cross-sectional view of a fastening component according to an exemplary embodiment of the present disclosure, wherein the colored portion shows the cross-section of the base portion and the threaded connection portion.

[0029] Figure 6 This is a three-dimensional structural schematic diagram of the base portion according to an exemplary embodiment of the present disclosure.

[0030] Figure 7 This is a schematic cross-sectional view of a base portion according to an exemplary embodiment of the present disclosure, wherein the colored portion shows the cross-section of the base portion. Detailed Implementation

[0031] The present disclosure will now be described more fully with reference to the accompanying drawings, which illustrate exemplary embodiments of the present disclosure. However, the present disclosure may be implemented in various ways and should not be construed as limited to the embodiments described herein. These embodiments are provided to make the disclosure more thorough and complete, and to fully convey the scope of the disclosure to those skilled in the art. In the drawings, the thickness and area of ​​layers may be enlarged for clarity. Throughout the specification, the same reference numerals are used to denote the same elements. For different embodiments, elements may have different relationships and different positions.

[0032] This disclosure discloses a fastening component comprising: a base portion; and a threaded connection portion, wherein a sealing structure is provided on the side of the base portion facing the threaded connection portion, the sealing structure comprising a first and a second resilient, annular first and second retaining walls extending around the threaded connection portion, the second retaining wall being located radially inside the first retaining wall.

[0033] The fastening components disclosed herein can provide more durable waterproof performance under dynamic loads or complex working conditions. Furthermore, the fastening components of this disclosure improve overall structural stability by integrating components of different materials into a single structure. Compared to the screw and nut combination in the prior art, the fastening components of this disclosure integrate metal and plastic components, which not only simplifies the manufacturing process and shortens the production cycle, thus significantly reducing manufacturing costs, but also reduces maintenance difficulty.

[0034] like Figure 1-2 As shown, the sealing structure is located on the base portion 10, on the same side as the threaded connection portion 20; that is, the sealing structure extends from the surface of the base portion 10 and surrounds the threaded connection portion 20. The sealing structure includes at least two baffles, including, in one example, a first baffle 101 and a second baffle 102, which extend around the threaded connection portion 20 and are both in an elastic annular shape. The second baffle 102 is located radially inside the first baffle 101 of the threaded connection portion 20. The first baffle 101 is axially higher than the second baffle 102 of the threaded connection portion 20. The first baffle 101 and the second baffle 102 are axially higher than the engagement end face 2014 of the end 201 of the threaded connection portion 200.

[0035] like Figure 5-7 As shown, the base portion 10 also includes a boss 103 located on one side of the sealing structure. The end face 1031 of the boss 103 is higher than the end faces of other parts of the base portion 10, but is on the same plane as the end face 201 of the threaded connection portion 20, as shown. Figure 1-2 and Figure 5-7As shown. The boss 103 is located inside the sealing structure in the radial direction of the threaded connection portion 20. The boss 103 and the sealing structure are separated in the radial direction of the threaded connection portion 20 by an annular groove 104. The second retaining wall 102 is higher than the end face 1031 of the boss 103 in the axial direction of the threaded connection portion 20.

[0036] like Figure 7 As shown, the radial width of the first retaining wall 101 in the threaded connection portion 20 is smaller than the radial width of the second retaining wall 102 in the threaded connection portion 20. The height difference between the top surface of the second retaining wall 102 (in other embodiments, the top surface can also be a vertex) and the end face 1031 of the boss 103 is 0.1-0.3 mm, preferably 0.2 mm, and the height difference between the top surface of the first retaining wall 101 (in other embodiments, the top surface can also be a vertex) and the end face 1031 of the boss 103 is 0.3-0.5 mm, preferably 0.4 mm. This structural design allows the retaining wall to undergo elastic deformation when subjected to external pressure, forming an effective sealing barrier.

[0037] In one embodiment of this disclosure, during the compression of the threaded connection portion by the component to be fixed, the first retaining wall 101 and the second retaining wall 102 gradually deform, and the gap between them gradually increases. When using the fastening component 1, when the fastening component 1 is in the locked working state, the top surfaces (even the entire top surfaces) of the first retaining wall 101 and the second retaining wall 102 are compressed in the axial direction of the threaded connection portion 20 to be in the same plane position as the engagement end face 2014 of the threaded connection component 10, which is also the end face of the end 201. When the fastening component 1 is in the locked working state, the amount of deformation of the first retaining wall 101 in the axial direction of the threaded connection portion 20 is greater than the amount of deformation of the second retaining wall 102 in the axial direction of the threaded connection portion 20, thereby achieving a dynamic sealing function for the nut connection component, while taking into account installation stability and waterproof performance.

[0038] In another embodiment of this disclosure, the fastening component may be provided with more than two retaining walls, with the height of the outermost retaining wall protruding from the surface of the fastening component successively higher than the height of the inner retaining wall. In other words, multiple retaining walls can be formed on the same side of the base portion as the threaded connection portion, forming multiple retaining walls sequentially outward from the boss along the radial direction of the threaded connection portion. The width of the outer retaining wall is smaller than the width of the inner retaining wall, while the height of the outer retaining wall is higher than the height of the inner retaining wall. A similar annular groove is provided between the innermost retaining wall and the boss. Thus, when the fastening component is subjected to pressure from an external component, the outer retaining wall is most easily deformed. As the pressure on the fastening component increases, the inner retaining walls deform sequentially, thereby aligning with the mating end face of the threaded connection component on the same plane, achieving a multi-level waterproofing effect.

[0039] For example Figure 1-2 and Figure 5-7 As shown, guide grooves 105 are provided on all four sides of the outer periphery of the fastening component 1, which are radially recessed along the threaded connection portion 20. A ring of guide grooves 105 recessed into the base portion 10 is formed on the outer periphery of the generally cuboid base portion 10. Left and right channels, as well as front and rear channels, are correspondingly formed in the front, rear, left, and right directions of the fastening component 1. These channels are interconnected, forming the guide grooves 105 to slide the fastening component 1 onto the part 40 to be assembled. The surface of the guide grooves 105 is a flat surface, allowing assembly to be performed with a simple sliding operation, simplifying the assembly process and adapting to various installation scenarios.

[0040] In embodiments of this disclosure, such as Figure 5 and 6 As shown, the fastening component 1 is formed using an insert injection molding process, in which a metal screw is placed into a plastic mold, and then molten plastic is injected to firmly bond the metal screw to the plastic. Therefore, the internal shape of the base portion 10 is complementary to the end 201 of the threaded connection portion 20.

[0041] In embodiments of this disclosure, such as Figure 1-2 As shown, the fastening component 1 may include two components made of different materials: a base portion 10 and a threaded connection portion 20. The base portion 10 is typically made of plastic, while the threaded connection portion 20 may be a metal screw. Due to the insert injection molding process, the base portion 10 and the screw have complementary shapes (e.g., ...). Figure 6 As shown, to better illustrate the base portion, the screw is not shown, making the base portion 10 appear to form a cavity (the surface of which is complementary to the screw surface), i.e., the sidewalls are provided with an inner and outer tooth-like structure, and the bottom wall is configured as an inwardly recessed portion, the sides of which are also provided with an inner and outer tooth-like structure. The base portion 10 may surround the threaded connection portion 20, such as the screw end 201, which protrudes from and extends from the end 201 at the location of the base portion 10, its extension being cylindrical and having threads on its outer peripheral surface.

[0042] The threaded connection portion is shown in the above embodiments and accompanying drawings of this disclosure as a screw-like structure; however, the threaded connection portion may also be formed as a nut-like structure. For ease of description, the structure of the threaded connection portion 20 will be described in detail below with reference to the accompanying drawings.

[0043] In embodiments of this disclosure, such as Figure 1-5As shown, the end 201 of the threaded connection portion 20 includes a flange portion 2011 and a torsion reinforcement portion 2012. The flange portion 2011 is generally frustum-shaped, and its thickness is significantly less than that of the torsion reinforcement portion 2012. The torsion reinforcement portion 2012 is generally cylindrical, and a spline-shaped tooth structure 2013 is provided on the outer periphery of the cylinder. This tooth structure extends along the longitudinal axis of the torsion reinforcement portion 2012 and is distributed throughout the entire outer periphery. Since the internal shape of the base portion 10 is complementary to the end 201 of the threaded connection portion 20, in other words, the spline-shaped tooth structure 2013 on the outer periphery of the torsion reinforcement portion 2012 is embedded in the base portion 10. By means of the concave and convex tooth structure 2013, the torsion effect of the fastening component can be significantly improved.

[0044] Furthermore, in embodiments of this disclosure, such as Figure 3 and 4 As shown, recessed, spiky tooth-like structures 2015 are provided in the flange portion 2011 and the torsion enhancement portion 2012 of the threaded connection portion 20. These recessed, spiky tooth-like structures are filled with the material of the base portion 10. Similarly, this tooth-like structure 2015 can also provide better torsional performance.

[0045] In embodiments of this disclosure, the material of the threaded connection portion 20 has a higher hardness than the material of the base portion 10. For example, the base portion 10 is made of plastic, and the threaded connection portion 20 is made of metal.

[0046] The following is a reference to the appendix. Figure 1-7 Describe the manufacturing process of the fastening component 1.

[0047] The fastening component 1 is formed using an insert injection molding process, in which a metal connecting component 20, such as a metal screw, is placed into a plastic mold, and then molten plastic is injected to firmly bond the metal screw to the plastic. Therefore, the internal shape of the base portion 10 is complementary to the end 201 of the threaded connection portion 20, such as... Figure 6 and 7 As shown in the diagram. When using this fastening component, it can be passed through the part to be fastened 30 and a certain preset torque can be applied to complete the initial fastening. Afterwards, the fastening component 1 is pushed along the guide groove 105 of the fastening component 1. The precise fit between the guide groove 105 and the part to be assembled 40 achieves the final installation. At the same time, the first retaining wall 101 and the second retaining wall 102 are compressed and deformed in the axial direction of the threaded connection portion 20 to achieve a multi-level waterproof effect.

[0048] The terminology used herein is for illustrative purposes only and should not be construed as limiting the meaning or scope of this disclosure. As used herein, the singular form may include the plural form unless a specific example is clearly indicated in the context. Furthermore, the expressions “comprising” and / or “including” as used herein do not limit the shapes, numbers, steps, operations, components, elements, and / or groups thereof mentioned, nor do they exclude the appearance or inclusion of one or more other different shapes, numbers, steps, operations, components, elements, and / or groups thereof, or inclusion thereof.

[0049] As used herein, terms such as “first,” “second,” etc., are used to describe various components, assemblies, regions, and / or parts. These terms are used only to distinguish one component, assembly, region, layer, or part from another component, assembly, region, or part. Therefore, the description of a first component, assembly, region, layer, or part may also refer to a second component, assembly, region, or part without departing from the scope of this disclosure.

[0050] The foregoing description of exemplary embodiments of this disclosure is for illustrative and descriptive purposes only and is not intended to be exhaustive or to limit this disclosure to the precise forms disclosed. Many modifications and variations are possible in accordance with the foregoing teachings. The embodiments were chosen and described to explain the principles of this disclosure and its practical application, so that others skilled in the art can utilize this disclosure and various embodiments with various modifications suitable for the particular purpose contemplated. Alternative embodiments will become apparent to those skilled in the art to which this disclosure pertains without departing from the spirit and scope of this disclosure. Therefore, the scope of this disclosure is defined by the appended claims rather than by the foregoing description and the exemplary embodiments described therein.

Claims

1. A fastening component characterized by, The fastening components include: Base section; Threaded connection part, A sealing structure is provided on the side of the base portion facing the threaded connection portion. The sealing structure includes a first and a second barrier wall that are elastic and annular. The first and second barrier walls extend around the threaded connection portion, and the second barrier wall is located inside the first barrier wall in the radial direction of the threaded connection portion.

2. The fastener component of claim 1 wherein, The first and second retaining walls extend axially above the engagement end face of the threaded connection portion.

3. The fastener component of claim 1 wherein, The first retaining wall is higher than the second retaining wall in the axial direction of the threaded connection portion.

4. The fastener component of claim 1 wherein, The base portion also includes a boss located radially inside the sealing structure of the threaded connection portion, the boss being separated from the sealing structure radially by an annular groove in the threaded connection portion, and the second retaining wall being axially higher than the end face of the boss in the threaded connection portion.

5. The fastener component of any one of claims 1 to 4, wherein, When the fastening component is in the locked working state, the top surfaces of the first and second retaining walls can be compressed axially in the threaded connection portion to a position on the same plane as the mating end face of the threaded connection portion.

6. The fastener component of claim 5 wherein, When the fastening component is in the locked working state, the axial deformation of the first retaining wall in the threaded connection portion is greater than the axial deformation of the second retaining wall in the threaded connection portion.

7. The fastening component as described in any one of claims 1 to 4, characterized in that, The first retaining wall has a radial width smaller than the second retaining wall in the radial direction of the threaded connection portion.

8. The fastening component as claimed in any one of claims 1 to 4, characterized in that, The base portion has guide grooves that are radially recessed inward along the threaded connection portion on all four sides of its outer periphery.

9. The fastening component as claimed in any one of claims 1 to 4, characterized in that, The threaded connection portion protrudes and extends from the base portion, and is provided with threads on at least a portion of the outer peripheral surface.

10. The fastening component as claimed in claim 9, characterized in that, The threaded connection portion includes an end embedded in the base portion. The end includes a flange portion and a torsion reinforcement portion. The outer peripheral surface of the torsion reinforcement portion is provided with a toothed structure embedded in the base portion.

11. The fastening component as claimed in claim 10, characterized in that, The flange portion and the torsion reinforcement portion are provided with recessed tooth-like structures.

12. The fastening component as claimed in any one of claims 1 to 4, characterized in that, The material of the threaded connection portion has a higher hardness than the material of the base portion.

13. The fastening component as claimed in any one of claims 1 to 4, characterized in that, The base portion is made of plastic, and the threaded connection portion is made of metal.

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