Clamping structure

Abstract

The application relates to a clamping structure. The clamping structure comprises a chuck, a connecting assembly and a plurality of elastic clamping portions. The connecting assembly comprises a fixed column, two first reinforcing ribs and two second reinforcing ribs. The side walls of the two first reinforcing ribs away from one side of the fixed column and the side walls of the two second reinforcing ribs away from one side of the fixed column are used for abutting against the inner wall of a clamping hole. By using the side walls of the two first reinforcing ribs away from one side of the fixed column to abut against the inner wall of the clamping hole, the ability of the clamping structure to withstand horizontal pulling force in a first direction is improved. By using the side walls of the two second reinforcing ribs away from one side of the fixed column to abut against the inner wall of the clamping hole, the ability of the clamping structure to withstand horizontal pulling force in a second direction is improved, the risk of deformation, deviation or fracture of the clamping structure under the influence of the horizontal pulling force is reduced, and the fixing reliability of the clamping structure and a base material is improved.

Description

Technical Field

[0001] This application relates to the field of connection technology, and more particularly to a snap-fit ​​structure. Background Technology

[0002] With the increasing electrification of automobiles, wiring harnesses, as the core carrier of the vehicle's electrical system, directly affect the safety and stability of the entire vehicle due to the reliability of their fixation and protection. In modern automobile manufacturing, plastic brackets have become key components for wiring harness fixation and protection due to their lightweight, corrosion resistance, ease of molding, and cost advantages. These plastic brackets are typically assembled to the body sheet metal parts using clips (such as arrow clips or cedar-head clips) to achieve the positioning and clamping of the wiring harness. These clips are designed to provide a reliable mechanical connection, ensuring a tight fit between the plastic bracket and the sheet metal parts.

[0003] However, in practical applications, the go-kart exhibits significant defects during assembly and use. When the plastic bracket is subjected to horizontal tensile forces (such as vehicle vibration, the weight of the wiring harness, or external impact), the go-kart is prone to plastic deformation, displacement, or even breakage. Such failures not only lead to wiring harness fixation failure but may also trigger a chain reaction of problems such as wiring harness wear and short circuits, seriously threatening the normal operation of the electrical system and consequently affecting the overall performance and safety of the vehicle. Utility Model Content

[0004] This application provides a snap-fit ​​structure to solve the problem that current snap-fit ​​devices are prone to deformation, displacement or breakage when subjected to horizontal pulling force.

[0005] To achieve the above objectives, this application provides a snap-fit ​​structure for snapping with a snap-fit ​​hole in a substrate. The snap-fit ​​structure has a first direction, a second direction, and a third direction that intersect each other. The snap-fit ​​structure includes: a chuck, a connecting component, and a plurality of elastic snap-fit ​​parts. The chuck is disposed on the side of the substrate in the third direction. The connecting component is connected to the chuck, and the end of the connecting component away from the chuck is used to pass through the snap-fit ​​hole. The plurality of elastic snap-fit ​​parts are connected to the end of the connecting component away from the chuck and are used to snap with the substrate. The connecting component includes: a fixing post, two first reinforcing ribs, and two second reinforcing ribs. The fixing post is connected to the chuck and extends along the third direction. The two first reinforcing ribs protrude from both sides of the fixing post in the first direction, and the two second reinforcing ribs protrude from both sides of the fixing post in the second direction. The sidewalls of the two first reinforcing ribs away from the fixing post and the sidewalls of the two second reinforcing ribs away from the fixing post are used to abut against the inner wall of the snap-fit ​​hole.

[0006] The snap-fit ​​structure of this application includes a chuck, a connecting component, and multiple elastic snap-fit ​​parts. The connecting component includes a fixing post, two first reinforcing ribs, and two second reinforcing ribs. By using the sidewalls of the two first reinforcing ribs away from the fixing post to abut against the inner wall of the snap-fit ​​hole, the snap-fit ​​structure's ability to withstand horizontal tensile force in the first direction is improved. By using the sidewalls of the two second reinforcing ribs away from the fixing post to abut against the inner wall of the snap-fit ​​hole, the snap-fit ​​structure's ability to withstand horizontal tensile force in the second direction is improved, reducing the risk of deformation, displacement, or breakage of the snap-fit ​​structure under the influence of horizontal tensile force, and improving the fixing reliability of the snap-fit ​​structure and the substrate. Attached Figure Description

[0007] 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.

[0008] 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.

[0009] Figure 1 This is a schematic diagram of the snap-fit ​​structure and the substrate snap-fit ​​structure provided in the embodiments of this application;

[0010] Figure 2 This is an exploded structural diagram of the snap-fit ​​structure and the substrate provided in the embodiments of this application;

[0011] Figure 3 This is a side view of the snap-fit ​​structure and substrate snap-fit ​​provided in the embodiments of this application. Figure 1 ;

[0012] Figure 4 This is a side view of the snap-fit ​​structure and substrate snap-fit ​​provided in the embodiments of this application. Figure 2 ;

[0013] Figure 5 This is a top view of the snap-fit ​​structure and the substrate snap-fit ​​provided in the embodiments of this application;

[0014] Figure 6 This is a bottom view of the snap-fit ​​structure and the substrate snap-fit ​​provided in the embodiments of this application;

[0015] Figure 7 This is a schematic diagram of the snap-fit ​​structure, chuck, connecting components, and elastic snap-fit ​​portion provided in the embodiments of this application;

[0016] Figure 8This is a cross-sectional view of the snap-fit ​​structure and chuck, connecting components and elastic snap-fit ​​portion provided in the embodiments of this application. Figure 1 ;

[0017] Figure 9 This is a cross-sectional view of the snap-fit ​​structure and chuck, connecting components and elastic snap-fit ​​portion provided in the embodiments of this application. Figure 2 ;

[0018] Figure 10 yes Figure 3 AA cross-section view;

[0019] Figure 11 This is a cross-sectional view of the snap-fit ​​structure and chuck, connecting components and elastic snap-fit ​​portion provided in the embodiments of this application. Figure 3 .

[0020] Explanation of reference numerals in the attached figures:

[0021] 100, snap-fit ​​structure; 200, substrate; 201, snap-fit ​​hole;

[0022] 1. Chuck; 2. Connecting assembly; 3. Flexible snap-fit ​​part; 4. Sealing gasket; M, first direction; N, second direction; P, third direction;

[0023] 11. Bottom; 12. Side wall;

[0024] 21. Fixed column; 22. First reinforcing rib; 23. Second reinforcing rib; 221. First guide part; 231. Second guide part;

[0025] 31. Limiting part; 32. First connecting part; 33. Second connecting part;

[0026] 41. Mounting holes. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1 and Figure 2This application provides a snap-fit ​​structure 100 for snapping into snap-fit ​​holes 201 of a substrate 200. The snap-fit ​​structure 100 has a first direction M, a second direction N, and a third direction P that intersect each other. In this embodiment, the first direction M, the second direction N, and the third direction P are perpendicular to each other. The perpendicularity of the first direction M, the second direction N, and the third direction P can be understood as the included angle between each pair of the first direction M, the second direction N, and the third direction P being 80° to 90°, and is not limited thereto.

[0029] Please see Figures 2 to 4 The snap-fit ​​structure 100 includes: a chuck 1, a connecting component 2, and multiple elastic snap-fit ​​parts 3.

[0030] Please see Figures 2 to 5 The chuck 1 is disposed on the third-direction P side of the substrate 200. In this embodiment, the chuck 1 is bowl-shaped and includes a bottom 11 and a sidewall portion 12 protruding from the bottom 11. The outer diameter of the sidewall portion 12 gradually increases from the bottom 11 toward the substrate 200. The outer diameter of the sidewall portion 12 near the bottom 11 is equal to the outer diameter of the bottom 11, and the outer diameter of the sidewall portion 12 away from the bottom 11 is greater than the inner diameter of the snap-fit ​​hole 201 of the substrate 200.

[0031] Connecting component 2 is connected to chuck 1, with the end of connecting component 2 away from chuck 1 passing through snap-fit ​​hole 201. Please refer to the following: Figure 6 and Figure 7 The connecting component 2 includes: a fixed column 21, two first reinforcing ribs 22 and two second reinforcing ribs 23.

[0032] The fixed post 21 is connected to the chuck 1 and extends along the third direction P.

[0033] Two first reinforcing ribs 22 protrude from the fixing post 21 on both sides of the first reinforcing post 21 along the first direction M. The sidewalls of the two first reinforcing ribs 22 away from the fixing post 21 are used to abut against the inner wall of the snap-fit ​​hole 201. By using the sidewalls of the two first reinforcing ribs 22 away from the fixing post 21 to abut against the inner wall of the snap-fit ​​hole 201, the ability of the snap-fit ​​structure 100 to withstand the horizontal tensile force in the first direction M is improved, the risk of deformation, displacement or breakage of the snap-fit ​​structure 100 under the influence of the horizontal tensile force is reduced, and the fixing reliability of the snap-fit ​​structure 100 and the substrate 200 is improved.

[0034] Two second reinforcing ribs 23 protrude from the fixing post 21 on both sides of the second direction N. The sidewalls of the two second reinforcing ribs 23 away from the fixing post 21 are used to abut against the inner wall of the snap-fit ​​hole 201. By using the sidewalls of the two second reinforcing ribs 23 away from the fixing post 21 to abut against the inner wall of the snap-fit ​​hole 201, the snap-fit ​​structure 100 is able to withstand the horizontal tensile force in the second direction N, reducing the risk of deformation, displacement or breakage of the snap-fit ​​structure 100 under the influence of the horizontal tensile force, and improving the fixing reliability of the snap-fit ​​structure 100 and the substrate 200.

[0035] In this embodiment, the first reinforcing rib 22 is connected to the chuck 1 at one end in the third direction P; and / or the second reinforcing rib 23 is connected to the chuck 1 at one end in the third direction P. The surface of the first reinforcing rib 22 near the fixing post 21 coincides with the surface of the fixing post 21 near the first reinforcing rib 22; and / or the surface of the second reinforcing rib 23 near the fixing post 21 coincides with the surface of the fixing post 21 near the second reinforcing rib 23. This further enhances the ability of the first reinforcing rib 22 to withstand horizontal tensile forces in the first direction M and the ability of the second reinforcing rib 23 to withstand horizontal tensile forces in the second direction N.

[0036] The first reinforcing rib 22 has a first guide portion 221 at the end of the third direction P away from the chuck 1, and the size of the first guide portion 221 in the first direction M gradually decreases from the side of the first guide portion 221 near the chuck 1 towards the opposite side of the chuck 1; and / or the second reinforcing rib 23 has a second guide portion 231 at the end of the third direction P away from the chuck 1, and the size of the second guide portion 231 in the second direction N gradually decreases from the side of the second guide portion 231 near the chuck 1 towards the opposite side of the chuck 1.

[0037] Figure 8 An exemplary embodiment shows that the first reinforcing rib 22 has a first guide portion 221 at the end of the third direction P away from the chuck 1. The size of the first guide portion 221 in the first direction M gradually decreases from the side of the first guide portion 221 close to the chuck 1 towards the back of the chuck 1. This can help the snap-fit ​​structure 100 to enter the snap-fit ​​hole 201 of the substrate 200 more smoothly during the assembly process, reduce resistance and friction during installation, reduce the complexity and time of manual operation, and improve production efficiency.

[0038] Figure 9An exemplary embodiment shows that the second reinforcing rib 23 has a second guide portion 231 at the end away from the chuck 1 in the third direction P. The size of the second guide portion 231 in the second direction N gradually decreases from the side of the second guide portion 231 close to the chuck 1 towards the back of the chuck 1. This can help the snap-fit ​​structure 100 to enter the snap-fit ​​hole 201 of the substrate 200 more smoothly during the assembly process, reduce resistance and friction during installation, reduce the complexity and time of manual operation, and improve production efficiency.

[0039] Please see Figure 7 and Figure 10 Multiple elastic snap-fit ​​portions 3 are connected to the end of the connecting assembly 2 away from the chuck 1, and are used to snap onto the substrate 200. In this embodiment, the multiple elastic snap-fit ​​portions 3 are disposed between adjacent first reinforcing ribs 22 and second reinforcing ribs 23 and are symmetrical about the center of the fixing post 21. Specifically, the snap-fit ​​structure 100 includes four elastic snap-fit ​​portions 3, which are symmetrical about the center of the fixing post 21. The elastic snap-fit ​​portions 3 are located at a 45° angle to the first reinforcing rib 22.

[0040] Please see Figure 11 The elastic locking portion 3 includes a limiting portion 31 and a first connecting portion 32. One end of the first connecting portion 32 is connected to the end of the connecting component 2 away from the chuck 1, and the other end of the first connecting portion 32 is connected to the limiting portion 31. The end of the limiting portion 31 away from the first connecting portion 32 is used to abut against the side of the substrate 200 away from the chuck 1. A gap is provided between the limiting portion 31 and the connecting component 2. Thus, when the locking structure 100 passes through the locking hole 201 of the substrate 200, under the action of external force, the elastic locking portion 3 will be forced to retract inward so that the elastic locking portion 3 can pass through the locking hole 201. When the limiting portion 31 completely passes through the locking hole 201, under the action of the elastic force of the limiting portion 31, the limiting portion 31 expands outward so that the end of the limiting portion 31 away from the first connecting portion 32 abuts against the side of the substrate 200 away from the chuck 1.

[0041] In this embodiment, the first connecting portion 32 is connected to the side of the first reinforcing rib 22 in the second direction N and is located at the end of the first reinforcing rib 22 away from the chuck 1; and / or the first connecting portion 32 is connected to the side of the second reinforcing rib 23 in the first direction M and is located at the end of the second reinforcing rib 23 away from the chuck 1.

[0042] Please see Figure 10 and Figure 11The elastic locking part 3 also includes a second connecting part 33. One end of the second connecting part 33 is connected to the end of the limiting part 31 that is closer to the chuck 1 in the third direction P. The side wall of the second connecting part 33 away from the fixing post 21 is used to abut against the inner wall of the locking hole 201. By having the second connecting part 33 abut against the inside of the locking hole 201 and the limiting part 31 abut against the side of the substrate 200 away from the chuck 1, the elastic locking part 3 is able to withstand horizontal pulling force, reducing the risk of deformation, displacement or breakage of the locking structure 100 under the influence of horizontal pulling force, and improving the fixing reliability of the locking structure 100 and the substrate 200.

[0043] Please see Figure 11 The end of the second connecting part 33 away from the limiting part 31 is connected to the chuck 1. This can further improve the ability of the elastic locking part 3 to withstand horizontal pulling force, reduce the risk of deformation, displacement or breakage of the locking structure 100 under the influence of horizontal pulling force, and improve the fixing reliability of the locking structure 100 and the substrate 200.

[0044] Please see Figures 2 to 5 The snap-fit ​​structure 100 also includes a sealing gasket 4. The sealing gasket 4 has a mounting hole 41 for allowing the connecting component 2 and the resilient snap-fit ​​portion 3 to pass through. The outer edge of the sealing gasket 4, projected onto the substrate 200, lies outside the outer edge of the snap-fit ​​hole 201. The chuck 1 abuts against the sealing gasket 4 on one side in the third direction P, and the sealing gasket 4 abuts against the substrate 200 on the other side in the third direction P, thereby ensuring a tight fit between the sealing gasket 4 and the substrate 200 and achieving the waterproof performance of the snap-fit ​​structure 100.

[0045] In summary, this application uses the sidewalls of the two first reinforcing ribs 22 away from the fixing post 21 to abut against the inner wall of the snap-fit ​​hole 201, and the sidewalls of the two second reinforcing ribs 23 away from the fixing post 21 to abut against the inner wall of the snap-fit ​​hole 201. Multiple elastic snap-fit ​​parts 3 are arranged between adjacent first reinforcing ribs 22 and second reinforcing ribs 23 and are symmetrical about the center of the fixing post 21. The end of the second connecting part 33 of the elastic snap-fit ​​part 3 away from the limiting part 31 is connected to the chuck 1. This can improve the ability of the snap-fit ​​structure 100 to withstand horizontal pulling force in any horizontal direction, reduce the risk of deformation, displacement or breakage of the snap-fit ​​structure 100 under the influence of horizontal pulling force, improve the fixing reliability of the snap-fit ​​structure 100 and the substrate 200, and thus fully align and press the sealing gasket 4 with the substrate 200, so that the sealing gasket 4 and the substrate 200 form a closed-loop surface contact, thereby improving the waterproof function of the snap-fit ​​structure 100.

[0046] 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.

[0047] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0048] 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 clamping structure (100), characterized in that, The snap-fit ​​structure (100) is used to snap-fit ​​with the snap-fit ​​hole (201) of the substrate (200). The snap-fit ​​structure (100) has a first direction (M), a second direction (N) and a third direction (P) that intersect each other. The snap-fit ​​structure (100) includes: a chuck (1), a connecting component (2) and a plurality of elastic snap-fit ​​parts (3). The chuck (1) is used to be disposed on the substrate (200) on the side of the third direction (P). The connecting component (2) is connected to the chuck (1). One end of the connecting component (2) away from the chuck (1) is used to pass through the snap-fit ​​hole (201). The plurality of elastic snap-fit ​​parts (3) are connected to the end of the connecting component (2) away from the chuck (1). The plurality of elastic snap-fit ​​parts (3) are used to snap-fit ​​with the substrate (200). The connecting component (2) includes: a fixing post (21), two first reinforcing ribs (22) and two second reinforcing ribs (23). The fixing post (21) is connected to the chuck (1) and extends along the third direction (P). The two first reinforcing ribs (22) protrude from both sides of the fixing post (21) in the first direction (M). The two second reinforcing ribs (23) protrude from both sides of the fixing post (21) in the second direction (N). The sidewalls of the two first reinforcing ribs (22) away from the fixing post (21) and the sidewalls of the two second reinforcing ribs (23) away from the fixing post (21) are used to abut against the inner wall of the snap-fit ​​hole (201).

2. The card interface structure (100) according to claim 1, characterized in that The first reinforcing rib (22) is connected to the chuck (1) at one end in the third direction (P); and / or The second reinforcing rib (23) is connected to the chuck (1) at one end of the third direction (P).

3. The card interface structure (100) according to claim 1, characterized in that The surface of the first reinforcing rib (22) near the fixed post (21) coincides with the surface of the fixed post (21) near the first reinforcing rib (22); and / or The surface of the second reinforcing rib (23) near the fixed column (21) overlaps with the surface of the fixed column (21) near the second reinforcing rib (23).

4. The card interface structure (100) according to claim 1, characterized in that Multiple elastic snap-fit ​​portions (3) are disposed between adjacent first reinforcing ribs (22) and second reinforcing ribs (23) and are symmetrical about the center of the fixing column (21).

5. The card interface structure (100) according to claim 1, characterized in that The elastic snap-fit ​​part (3) includes a limiting part (31) and a first connecting part (32). One end of the first connecting part (32) is connected to the end of the connecting component (2) away from the chuck (1), and the other end of the first connecting part (32) is connected to the limiting part (31). The end of the limiting part (31) away from the first connecting part (32) is used to abut against the side of the substrate (200) away from the chuck (1).

6. The card interface structure (100) according to claim 5, characterized in that The elastic snap-fit ​​part (3) further includes a second connecting part (33), one end of which is connected to the limiting part (31) at the end of the third direction (P) near the chuck (1), and the side wall of the second connecting part (33) away from the fixing post (21) is used to abut against the inner wall of the snap-fit ​​hole (201).

7. The card interface structure (100) according to claim 6, characterized in that The end of the second connecting part (33) away from the limiting part (31) is connected to the chuck (1).

8. The card interface structure (100) according to claim 5, characterized in that A gap is provided between the limiting part (31) and the connecting component (2).

9. The card interface structure (100) according to claim 5, characterized in that The first connecting portion (32) is connected to the side of the first reinforcing rib (22) in the second direction (N) and located at the end of the first reinforcing rib (22) away from the chuck (1); and / or The first connecting part (32) is connected to the side of the second reinforcing rib (23) in the first direction (M) and is located at the end of the second reinforcing rib (23) away from the chuck (1).

10. The card interface structure (100) according to claim 1, characterized in that The snap-fit ​​structure (100) further includes a sealing gasket (4) having a mounting hole (41) for allowing the connecting assembly (2) and the resilient snap-fit ​​part (3) to pass through; The chuck (1) and the sealing gasket (4) abut on one side of the third direction (P), and the sealing gasket (4) is used to abut against the substrate (200) on the other side of the third direction (P).

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