Sealing strip, fastening structure and vehicle

Abstract

The application relates to a sealing strip, a fastening structure and a vehicle. The sealing strip body comprises a first surface; a first extension part is arranged on the first surface, the first extension part has a deformation structure, at least part of the first extension part is clamped in a mounting hole of a first bearing member through the deformation structure; in the sealing strip, the first extension part for clamping is arranged directly on the sealing strip body, so that the buckle top can be avoided from being exposed on the sealing strip surface, and assembly is facilitated.

Description

Technical Field

[0001] This application relates to the field of vehicle sealing technology, and more particularly to a sealing strip, fastening structure, and vehicle. Background Technology

[0002] Currently, in existing technologies, door sealing strips are mainly assembled by using independent clips to attach them to the sheet metal, or by adhesive bonding. However, the top of the current clip-on structure is exposed on the surface of the sealing strip, which cannot achieve complete concealment and affects the customer's aesthetic experience; adhesive bonding requires specific operating temperatures and some adhesives require adhesive additives to facilitate bonding, making the assembly process more demanding.

[0003] Therefore, a new sealing strip structure is needed. Utility Model Content

[0004] This application provides a sealing strip, a fastening structure, and a vehicle. The sealing strip improves the ease of assembly and aesthetics, thereby at least partially solving the aforementioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a sealing strip is provided, comprising:

[0006] The sealing strip body includes a first surface;

[0007] The first surface is provided with a first extension, which has a deformation structure, and at least a portion of the first extension is engaged in the mounting hole of the first carrier through the deformation structure.

[0008] In some embodiments, the outer peripheral surface of the first extension is chamfered, the chamfer causing the first extension to gradually taper from one end near the first surface to the other end away from the first surface.

[0009] In some embodiments, the first extension includes at least two snap-fit ​​portions.

[0010] In some embodiments, the snap-fit ​​portion is provided in numbers of 3 to 6.

[0011] In some embodiments, a gap is provided between the snap-fit ​​portions.

[0012] In some embodiments, the first extension is integral with the sealing strip body.

[0013] In some embodiments, the first extension is interference-fitted with the mounting hole.

[0014] In some embodiments, the first extension is at least partially embedded in the sealing strip body.

[0015] In some embodiments, the first extension is provided with a first through hole that penetrates through it and the sealing strip body.

[0016] A second aspect of this application provides a fastening structure, including the aforementioned sealing strip;

[0017] The first extension is provided with a first through hole that penetrates through it and the sealing strip body;

[0018] Fasteners pass through the first through hole to connect and secure the sealing strip body to the first carrier.

[0019] In some embodiments, a first fastener is also included; one end of the fastener passes through the first through hole and the mounting hole and is installed on the first fastener, thereby connecting and fastening the sealing strip, the first carrier and the first fastener.

[0020] In some implementations, the first fastener is a vehicle rearview mirror.

[0021] In some embodiments, the size of the first through hole is greater than or equal to the size of the portion of the fastener that extends into the first through hole.

[0022] In some embodiments, the mounting hole is configured as an irregularly shaped hole.

[0023] In some embodiments, the mounting hole is configured as an elliptical hole and / or an oblong hole.

[0024] In some embodiments, the fastener is a screw or bolt.

[0025] In some implementations, the first support member is a sheet metal part of the vehicle.

[0026] In some embodiments, the end of the sealing strip is provided with the first through hole.

[0027] A third aspect of this application provides a vehicle including the aforementioned sealing strip and / or the aforementioned fastening structure.

[0028] In the sealing strip of this application embodiment, by directly providing a first extension for snap-fit ​​on the sealing strip body, the top of the snap-fit ​​can be avoided from being exposed on the surface of the sealing strip, and assembly is easy.

[0029] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0032] Figure 1 This is a schematic diagram of the structure of the sealing strip body provided in an exemplary embodiment of this disclosure;

[0033] Figure 2 This is a partial structural diagram of the sealing strip body and the first carrier provided in an exemplary embodiment of this disclosure;

[0034] Figure 3 This is a schematic diagram of the connection method between the sealing strip body and the first carrier and the first fixing member provided in the exemplary embodiment of this disclosure;

[0035] Figure 4 yes Figure 3 An enlarged schematic diagram of part A in the middle;

[0036] Figure 5 This is an exploded view of the fastening structure provided in an exemplary embodiment of this disclosure.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10-Sealing strip body, 101-First surface, 102-First extension, 103-Snap-fit ​​part, 104-Chamfer, 105-First through hole;

[0039] 20 - First support member; 201 - Mounting hole;

[0040] 30 - First fastener;

[0041] 40-Fasteners. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0043] According to a first aspect of this application, a sealing strip is provided; please refer to... Figures 1 to 5The sealing strip of this application includes: a sealing strip body 10, including a first surface 101; a first extension 102 is provided on the first surface 101, the first extension 102 having a deformation structure, through which at least a portion of the first extension 102 is engaged in the mounting hole 201 of the first carrier 20, so as to install the sealing strip body 10 on the first carrier 20. It can be understood that by providing a first extension 102 for engaging with the mounting hole 201 on the first surface 101 of the sealing strip body 10, and by directly engaging the first extension 102 into the mounting hole 201, the problem of the prior art where the sealing strip is installed by a separate buckle and the buckle is exposed on the surface of the sealing strip body 10 is solved. The deformation structure is elastic, and after the first extension 102 is removed from the mounting hole 201, it tends to return to its initial shape so that it can be reused in subsequent installations. In existing technologies, installation via individual clips requires drilling holes in the sealing strip body 10, resulting in numerous steps. Therefore, the technical solution of this application also reduces the number of installation steps. Furthermore, adhesive methods (such as 3M adhesive) typically have temperature requirements and require adhesive additives for bonding. Adhesive bonding demands high assembly standards, involves numerous steps, and is not always reliable, often detaching from the sheet metal. Therefore, the technical solution of this application has fewer installation steps and lower requirements for ambient temperature compared to adhesive methods, thus improving installation efficiency.

[0044] The first extension 102 is integrally formed with the sealing strip body 10, thereby reducing the number of parts. It is understood that the integral formation of the first extension 102 and the sealing strip body 10 includes both physical and molecular-level connections. In specific manufacturing, injection molding processes such as two-color injection molding, insert injection molding, and overmolding can be used, or bonding, chemical treatment, and mechanical bonding can be employed. Using two-color injection molding, the sealing strip body 10 and the first extension 102 are completed in a single molding process, allowing the variable portion of the first extension 102 of the sealing strip body 10 to be integrated with the elastic rubber portion of the sealing strip body 10. Alternatively, overmolding can be used, where the first extension 102 is manufactured first using plastic material, and then at least partially placed in a mold for casting the sealing strip body 10, thereby integrally casting the first extension 102 and the sealing strip body 10.

[0045] In addition, please see Figure 3 and Figure 4The first extension 102 is interference-fitted with the mounting hole 201 to secure it within the mounting hole 201. It can be understood that when the first extension 102 is installed on the first support member 20, the first extension 102 is inserted into the mounting hole 201 of the first support member 20 (sheet metal part). Due to the compression deformation structure, the outer wall of the first extension 102 generates friction with the inner wall of the mounting hole 201, achieving a snap-fit ​​fixation. Better yet, this deformation structure is elastic, allowing the first extension 102 to be more easily installed into the mounting hole 201 of the first support member 20 (sheet metal part). This deformation structure can elastically deform to adapt to mounting holes 201 with different tolerances, improving assembly compatibility. Therefore, this deformation structure eliminates the need for additional clips, reducing the number of parts and lowering production costs.

[0046] In some embodiments, please refer to Figure 3 and Figure 4 The outer peripheral surface of the first extension 102 is provided with a chamfer 104, which causes the first extension 102 to gradually taper from the end near the first surface 101 to the end away from the first surface 101. The angle of the chamfer 104 on the outer peripheral surface of the first extension 102 can be set as needed, such as considering installation stability, machining and assembly tolerances, the chamfer 104 can be 10°-70°, including 20°, 30°, 40°, 50°, and 60°. This chamfer 104 provides a guiding function, facilitating the quick insertion of the first extension 102 into the mounting hole 201. Simultaneously, due to the chamfer 104, the machining error margin of the first extension 102 in the mounting hole 201 is larger, reducing the precision requirements for machining and thus lowering the overall machining cost.

[0047] In some embodiments, please refer to Figure 1 and Figure 2 The first extension 102 includes at least two snap-fit ​​portions 103. Exemplarily, there are 3 to 6 snap-fit ​​portions 103. Typically, there are 2-6 snap-fit ​​portions 103, such as 4. The first extension 102 has 4 independent snap-fit ​​portions 103 evenly distributed circumferentially. The shape formed by the outer periphery of the 4 snap-fit ​​portions 103 adapts to the shape of the mounting hole 201 to facilitate the installation of the snap-fit ​​portions 103 into the mounting hole 201. Furthermore, a gap is provided between the snap-fit ​​portions 103 to form a deformation structure. The size of the gap can be set to 0.5mm-5mm, and should be set according to the size of the mounting hole 201 and the number and width of the snap-fit ​​portions 103. This arrangement forms multiple individual snap-fit ​​portions 103, and the gap between the snap-fit ​​portions 103 allows the snap-fit ​​portions 103 to deform independently without interference. Each snap-fit ​​portion 103 is an independent deformation unit, which can adapt to local deformation of the sheet metal hole and prevent snap-fit ​​failure.

[0048] In some embodiments, the first extension 102 is at least partially embedded within the sealing strip body 10. To make the connection between the first extension 102 and the sealing strip body 10 more robust, a portion of the first extension 102 can be embedded into the sealing strip body 10, without extending through the sealing strip body 10. It is understood that when the first extension 102 is at least partially embedded into the sealing strip body, the root of the first extension 102 is wrapped by the material of the sealing strip body 10, forming a continuous material connection interface. The advantages of this design include: avoiding breakage or detachment due to stress concentration at the root, as is common in traditional split-type snap fasteners; the embedded portion bonds with the molecular chains of the body material, increasing tensile strength (measured tensile strength increase of approximately 30%); and under vibration or impact conditions, the embedded design can distribute force, preventing the snap-fit ​​portion 103 from separating from the body. In terms of manufacturing process, a two-color integrated injection molding process is used, where the first extension 102 and the sealing strip body 10 are molded simultaneously, eliminating the need for subsequent assembly. This design not only enhances the aesthetics of the sealing strip but also makes the installation of both more secure.

[0049] Specifically, the first extension 102 is designed with a gradually varying thickness to be embedded at the root of the sealing strip body 10, providing an elastic buffer. For example, when the snap-fit ​​portion 103 is under pressure, the embedded portion can undergo local deformation to absorb the dimensional tolerances of the sheet metal hole, while the elastic deformation reduces insertion resistance and assembly damage.

[0050] In some embodiments, please refer to Figure 1 , Figures 3-5 The first extension 102 is provided with a first through hole 105 that penetrates it and the sealing strip body 10. This first through hole 105 is used to install other components, providing an installation channel for them and enabling simultaneous installation of multiple parts. The diameter of the first through hole 105 is determined according to the size of the other components to be installed therein; for example, the diameter of the first through hole 105 can be 5mm-20mm.

[0051] According to a second aspect of this application, a fastening structure is provided, including the aforementioned sealing strip, which has all the technical features and effects of the sealing strip.

[0052] The fastening structure includes: a first through hole 105 extending through the first extension 102 and connecting it to the sealing strip body 10; and a fastener passing through the first through hole 105 to connect and fasten the sealing strip body 10 to the first carrier member 20. It can be understood that the first through hole 105 is used for installation, and the fastener passing through the first through hole 105 secures the sealing strip and the first carrier member 20 together.

[0053] In some embodiments, please refer to Figure 3 and Figure 4One end of the fastener 40 passes through the first through hole 105 and the mounting hole 201, and is installed on the first fixing member 30, thus securing the sealing strip, the first carrier member 20, and the first fixing member 30. It can be understood that by securing the sealing strip, the first carrier member 20, and the first fixing member 30 through the first through hole 105, the fastener 40 reduces the number of components, making the installation of the first fastener 40 and the first carrier member 20 a common structural feature, such as the mounting hole 201 of the first carrier member 20. Furthermore, this design enhances the installation stability of the sealing strip and the first carrier member 20 without increasing the number of additional components.

[0054] The first through hole 105 is used to install a fastener 40, allowing the fastener 40 to pass through the first through hole 105 and be fastened to other components, providing an installation channel for the fastener 40. The fastener 40 is a screw or bolt, which facilitates the connection and fixation of the fastener 40 to other components. For example, the fastener 40 passes through the first through hole 105 and the mounting hole 201 of the first support member 20 (sheet metal part) to connect to other components that need to be fastened.

[0055] In some embodiments, the first fixing member 30 is a vehicle rearview mirror, the fastener 40 is a bolt or screw, and the first carrier member 20 is a sheet metal part, thereby enabling the rearview mirror, sheet metal part, and sealing strip to be installed as a whole through a fastening structure. The bolt passes sequentially through the first through hole 105 of the sealing strip and the sheet metal mounting hole 201, and is installed on the base hole of the rearview mirror. Tightening the bolt firmly fastens the sealing strip, the first carrier member 20, and the first fixing member 30 together, enhancing structural rigidity, reducing vibration and noise, and enabling a single bolt to simultaneously fix multiple components, simplifying the assembly process. The base hole of the rearview mirror is threaded to securely install with the first fixing member 30 of the bolt structure. Furthermore, M3-M6 standard bolts are selected according to the application scenario. The standardized fastener 40 is easy to purchase and maintain, and its surface is galvanized to prevent rust and extend its service life.

[0056] In some embodiments, please refer to Figure 3 and Figure 4The size of the first through hole 105 is greater than or equal to the size of the portion of the fastener 40 extending into the first through hole 105, so that the fastener 40 can be smoothly installed in the first through hole 105, and the portion of the fastener 40 extending into the first through hole 105 will not interfere with the inner wall of the first through hole 105 during installation, thus facilitating installation and preventing unnecessary deformation of the sealing strip. For example, the diameter of the first through hole 105 is 1.05-1.2 times the diameter of the fastener 40 extending into the first through hole 105, preventing the sealing strip from rotating when the fastener 40 rotates. Furthermore, the size of the first through hole 105 being greater than or equal to the size of the portion of the fastener 40 extending into it allows for machining errors and improves assembly yield. In some embodiments, please refer to... Figure 2 The mounting hole 201 is constructed as an irregularly shaped hole so that when the snap-fit ​​portion 103 of the first extension 102 extends into the mounting hole 201, it can play a role in preventing rotation. It can be understood that the irregularly shaped hole is a non-circular hole, including elliptical holes, oblong holes, as well as polygonal holes such as rectangular holes and triangular holes, and has a variety of configuration forms.

[0057] In some embodiments, please refer to Figure 2 The mounting hole 201 is constructed as an elliptical hole and / or an oblong hole, which reduces stress concentration in the hole and improves the ease of installing the snap-fit ​​portion 103 of the first extension 102 into the mounting hole 201. It can be understood that the snap-fit ​​portion 103 is constructed to fit the shape of the mounting hole 201 so as to cooperate with the mounting hole 201 for installation. The shape adaptation reduces the gap between the snap-fit ​​portion 103 and the mounting hole 201, preventing loosening. The shape adaptation is linear contact, which can reduce stress concentration. The mounting hole 201 can be an elliptical hole, an oblong hole, or both oblong and elliptical holes can be provided on the sealing strip body 10. The mounting hole 201, configured as an elliptical hole and / or an oblong hole, can reduce stress concentration, facilitate the installation of the snap-fit ​​portion 103, and prevent the first extension 102 installed in the mounting hole 201 from rotating, thereby avoiding deformation and torsion of the sealing strip. Typically, the mounting hole 201 is set as an oblong hole, which is similar to a rectangular hole and can achieve a better anti-rotation effect.

[0058] In some embodiments, the first support member 20 is a sheet metal part of the vehicle, typically located on the door, used to seal the door after the sealing strip is installed. It is understood that the mounting hole 201 is provided on the sheet metal part, which can be formed by stamping. The sheet metal part is typically a door, and the sealing strip installed on the sheet metal part is used to seal the gap between the door and the vehicle body when the door is closed. Furthermore, the first support member 20 can also be other parts of the vehicle that require sealing with the sealing strip, and the material of the first support member 20 can also be other materials, such as plastic. Therefore, the structure of the first extension 102 of the sealing strip can also be adapted for installation on plastic parts, such as the door material of a car, which is made of plastic. In some embodiments, the end of the sealing strip is provided with the first through hole 105. By providing the first through hole at the end of the sealing strip, the fastening structure can be used at the end of the sealing strip. Understandably, in installation situations with limited space, traditional snap-fit ​​structures are not convenient to place at the end of the sealing strip, requiring the sealing strip to be glued to the sheet metal surface. This setup places high demands on assembly, and if the 3M adhesive is not firmly attached, the sealing strip often detaches from the sheet metal. This fastening structure, however, is used to secure the end of the sealing strip, thus firmly installing the end of the sealing strip onto the first load-bearing component (sheet metal).

[0059] In some embodiments, please refer to Figure 1 The first through hole 105 is perpendicular to the first surface 101. It is understood that the axis of the first through hole 105 forms a 90° angle or approximately a 90° angle with the first surface 101. This arrangement facilitates the installation of other mating components. For example, the structure in which the fastener 40 is installed perpendicular to the first surface 101 reduces the lateral force on the fastener 40 and prevents the sealing strip from twisting. Simultaneously, the first through hole 105, perpendicular to the first surface 101, facilitates the positioning of automated assembly tools, improving assembly efficiency.

[0060] In addition, in a few cases, the axis of the first through hole 105 is inclined to the first surface 101, that is, the axis of the first through hole 105 forms a certain angle with the first surface 101. This is set under special assembly requirements.

[0061] According to a third aspect of this application, a vehicle is provided, including the aforementioned sealing strip and / or fastening structure. This vehicle possesses all the technical features of the aforementioned sealing strip and / or fastening structure, and therefore also possesses all the technical effects of the aforementioned fastening structure and / or sealing strip. Vehicles using this fastening structure and / or sealing strip enable a smoother installation of the sealing strip, while also reducing the number of parts and improving production efficiency.

[0062] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0064] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0065] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A weather strip, characterized by The application relates to a sealing strip, comprising: a sealing strip body (10) comprising a first surface (101); a first extension (102) is arranged on the first surface (101), and the first extension (102) is provided with a deformation structure, and at least part of the first extension (102) is clamped in a mounting hole (201) of a first carrier (20) through the deformation structure.

2. The weather strip of claim 1, wherein The outer circumferential surface of the first extension (102) is provided with a chamfer (104), and the chamfer (104) is arranged to gradually reduce the first extension (102) from one end close to the first surface (101) to one end away from the first surface (101).

3. The weather strip of claim 1, wherein The first extension (102) comprises at least two clamping portions (103).

4. The weather strip of claim 3, wherein The clamping portions (103) are arranged as 3-6 clamping portions.

5. The weather strip of claim 3, wherein Gaps are arranged between the clamping portions (103).

6. The weather strip according to any one of claims 1 to 5, characterized in that The first extension (102) and the sealing strip body (10) are integrally formed.

7. The weather strip according to any one of claims 1 to 5, characterized in that The first extension (102) is in interference fit with the mounting hole (201).

8. The weather strip according to any one of claims 1 to 5, characterized in that The first extension (102) is at least partially embedded in the sealing strip body (10).

9. The weather strip according to any one of claims 1 to 5, characterized in that A first through hole (105) is arranged on the first extension (102) and penetrates the sealing strip body (10).

10. A fastening structure characterized by comprising: The sealing strip according to any one of claims 1-9; A first through hole (105) is arranged on the first extension (102) and penetrates the sealing strip body (10). A fastener is arranged to pass through the first through hole (105) and connect and fasten the sealing strip body (10) and the first carrier (20).

11. The fastening structure according to claim 10, wherein The fastener (40) is arranged to pass through the first through hole (105) and the mounting hole (201) and is arranged on the first fixing member (30) to connect and fasten the sealing strip, the first carrier (20) and the first fixing member (30).

12. The fastening structure according to claim 11, wherein The first fixing member (30) is a vehicle rearview mirror.

13. The fastening structure according to claim 10, wherein The size of the first through hole (105) is greater than or equal to the size of the part of the fastener (40) extending into the first through hole (105).

14. The fastening structure according to claim 10, wherein The mounting hole (201) is configured as a special-shaped hole.

15. The fastening structure according to claim 14, wherein The mounting hole (201) is configured as an oval hole and / or an oblong hole.

16. The fastening structure according to claim 10, wherein The fastener (40) is a screw or a bolt.

17. The fastening structure according to claim 10, wherein The first carrier (20) is a metal plate of a vehicle.

18. The fastening structure according to claim 10, wherein The end of the sealing strip is provided with the first through hole (105).

19. A vehicle characterized by comprising: The sealing strip according to any one of claims 1-9 and / or the fastening structure according to any one of claims 10-18.

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