Seal stopper and vehicle

Abstract

The present disclosure relates to a sealing plug and a vehicle, and belongs to the technical field of automobile parts. The sealing plug comprises a sealing part and a limiting part. The sealing part has a disc-shaped main body, and the center of the disc-shaped main body has a wire harness through hole suitable for the wire harness to pass through. The limiting part has a ring-shaped main body and a plurality of elastic hooks distributed around the ring-shaped main body. The ring-shaped main body is connected with the disc-shaped main body and surrounds the wire harness through hole. The fixed end of each elastic hook is connected to the ring-shaped main body, and the free end extends obliquely towards the disc-shaped main body and away from the first axis line of the ring-shaped main body. When the sealing plug is used to plug the functional hole of the sheet metal, the elastic hook passes through the functional hole from the first side of the sheet metal to the second side of the sheet metal, the free end of the elastic hook abuts against the second side of the sheet metal, and the sealing part abuts against the first side of the sheet metal. The present disclosure can ensure that the sealing plug is not easy to fall off, and at the same time, the installation force required for installing the sealing plug is small.

Description

Technical Field

[0001] This disclosure relates to the field of automotive parts technology, and in particular to a sealing plug and a vehicle. Background Technology

[0002] During the design and manufacturing process of automobiles, functional holes are generally provided for the installation of various structural components and to meet functional requirements. These include wiring harness through-holes or mounting holes for electrical components. Some of these functional holes are located on the sheet metal surface of the vehicle body used to isolate wet and dry areas. These holes need to be sealed with sealing plugs to achieve the required waterproof and dustproof ratings, while also preventing these sealing plugs from falling off during use. To address this, some sealing plugs are designed to increase the amount of compression deformation between the soft rubber and the sheet metal, resulting in excessive installation force and difficulty in installation. Summary of the Invention

[0003] Therefore, this disclosure provides a sealing plug and a vehicle that can ensure the sealing plug is not easily dislodged while requiring less installation force. The technical solution is as follows:

[0004] In a first aspect, a sealing plug is provided, the sealing plug including a sealing part and a limiting part;

[0005] The sealing part has a disc-shaped body, and the center of the disc-shaped body has a wire harness through hole suitable for the wire harness to pass through;

[0006] The limiting part has an annular body and a plurality of elastic claws distributed around the annular body. The annular body is connected to the disc-shaped body and surrounds the wire harness through hole. The fixed end of each elastic claw is connected to the annular body, and the free end extends obliquely toward the disc-shaped body and away from the first axis of the annular body.

[0007] When the sealing plug is used to block the functional hole of the sheet metal, the elastic hook passes from the first side of the sheet metal through the functional hole to the second side of the sheet metal, the free end of the elastic hook abuts against the second side of the sheet metal, and the sealing part abuts against the first side of the sheet metal.

[0008] In one possible implementation, the sealing portion further has an annular elastic flange, which is connected to the disc-shaped body and surrounds the wire harness through hole;

[0009] When the sealing plug is used to block the functional hole, the annular elastic flange is adapted to abut against the first side of the sheet metal around the functional hole.

[0010] In one possible implementation, the limiting part further has a plurality of axial limiting structures, which are distributed around the annular body and connected to the annular body;

[0011] When the sealing plug is used to block the functional hole, each of the axial limiting structures is adapted to abut against the first side of the sheet metal along the second axis of the functional hole.

[0012] In one possible implementation, the limiting portion further has a plurality of radial limiting structures, which are distributed around the annular body and connected to the annular body;

[0013] When the sealing plug is used to block the functional hole, each of the radial limiting structures is adapted to abut against the stop edge of the functional hole along the radial direction of the functional hole.

[0014] In one possible implementation, the limiting part further has a plurality of first guide surfaces, the first guide surfaces being adapted to be inclined opposite to the first axis and opposite to the disc-shaped body, the plurality of first guide surfaces being distributed around the annular body and located on the side of the radial limiting structure away from the disc-shaped body;

[0015] Wherein, when the sealing plug is used to block the functional hole, the farthest distance between a point on the first guide surface and the second axis of the functional hole is adapted to the farthest distance between a point on the radial limiting structure and the second axis of the functional hole.

[0016] In one possible implementation, the wire harness via is interference-fitted with the wire harness.

[0017] In one possible implementation, the wire harness via has a mating section and a guide section. The mating section is interference-fitted with the wire harness, and the inner wall of the guide section is tapered. The end of the guide section with the smallest inner diameter is connected to the inner diameter of the mating section, and the smallest inner diameter of the guide section matches the inner diameter of the mating section.

[0018] In one possible implementation, when the sealing plug is in its natural state, the minimum distance between each of the resilient claws and the sealing portion along the second axis is less than the thickness of the sheet metal.

[0019] In one possible implementation, when the sealing plug is used to seal the functional hole, the plurality of elastic claws are evenly distributed around the second axis of the functional hole.

[0020] In a second aspect, a vehicle is provided, wherein functional holes are provided on the sheet metal of the vehicle, and the vehicle further includes a sealing plug as described in any of the first aspects.

[0021] In the solution disclosed herein, when installing the sealing plug into the functional hole of the sheet metal from the first side, multiple elastic claws are first pressed against the stop edge of the functional hole, and force is continued. Due to the compressive force from the stop edge away from the first axis, the elastic claws are forced to contract towards the axis, thus easily passing through the functional hole. Once the elastic claws have completely passed through the functional hole and reached the second side of the sheet metal, the sealing part presses against the first side of the sheet metal, preventing it from passing through the functional hole and thus sealing it. The elastic claws then return to their original shape, with their free ends pressing against the second side of the sheet metal, preventing them from passing through the functional hole in the opposite direction. This ensures that the sealing plug is not easily dislodged. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a sealing plug provided in an embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the structure of a sealing part provided in an embodiment of this disclosure;

[0025] Figure 3 This is a schematic diagram of the structure of a limiting part provided in an embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of a sheet metal structure provided in an embodiment of this disclosure;

[0027] Figure 5 This is a top view schematic diagram of a sealing plug provided in an embodiment of this disclosure;

[0028] Figure 6 This is one of the embodiments provided in this disclosure. Figure 5 A schematic diagram of the AA cross-sectional structure of the sealing plug when sealing the functional hole;

[0029] Figure 7 This is one of the embodiments provided in this disclosure. Figure 5 A schematic diagram of the BB cross-sectional structure when the sealing plug is used to seal the functional hole.

[0030] Explanation of reference numerals in the attached figures

[0031] 2. Sealing part; 21. Wire harness through hole; 211. Mating section; 212. Guide section; 22. Annular elastic flange; 23. Disc-shaped body; 3. Limiting part; 31. Elastic claw; 311. Abutting surface; 312. Second guide surface; 32. Rigid limiting structure; 321. First guide surface; 322. Axial limiting structure; 323. Radial limiting structure; 33. Annular body; 34. First axis; 4. Sheet metal; 41. Stop edge; 42. Functional hole; 43. Second axis. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0033] Different parts of a passenger vehicle body can be divided into dry and wet areas based on functional requirements and their susceptibility to water contact. Dry areas include the passenger compartment and trunk, which are not easily exposed to water or prone to immersion. Wet areas are the exterior parts of the passenger compartment and trunk that are easily exposed to water or prone to immersion. Some functional openings are located on the sheet metal surfaces of the car body used to isolate these dry and wet areas. To prevent water that may be present in the wet areas from leaking into the dry areas through these openings, sealing plugs are needed to seal these openings, achieving the required waterproofing and dustproofing.

[0034] This embodiment specifically relates to a sealing plug, and the structural features of the sealing plug will be described below.

[0035] like Figure 1 The diagram shown is a structural schematic of the sealing plug. Figure 2 The diagram shown is a structural schematic of the sealing part 2. Figure 3 The diagram shown is a structural schematic of the limiting part 3. Figure 4 The diagram shown is a structural schematic of sheet metal 4. Figure 5 The diagram shown is a top view of the sealing plug. Figure 6 What is shown is Figure 5 A schematic diagram of the AA cross-sectional structure of the sealing plug when sealing the functional hole. Figure 7 What is shown is Figure 5 A schematic diagram of the BB cross-sectional structure when the sealing plug is used to seal the functional hole.

[0036] refer to Figure 1 As shown, the sealing plug includes a sealing part 2 and a limiting part 3. (Referring to...) Figure 2 As shown, the sealing part 2 has a disc-shaped body 23, and the center of the disc-shaped body 23 has a wire harness through hole 21 suitable for the wire harness 5 to pass through. (Ref) Figure 3 As shown, the limiting part 3 has an annular body 33 and a plurality of elastic claws 31 distributed around the annular body 33. For example, the number of elastic claws 31 can be two, three, or, for example... Figure 3The example shown shows four or more elastic claws 31. This embodiment uses four elastic claws 31 as an example.

[0037] Continue to refer to Figure 1 As shown, the first end of the annular body 33 is connected to the disc-shaped body 23 and surrounds the wire harness through hole 21. For example, the radius of the annular body 33 can be greater than or equal to the radius of the wire harness through hole 21.

[0038] The fixed end of each elastic claw 31 is fixedly connected to the annular body 33. For example, the fixed end of the elastic claw 31 can be as follows: Figure 1 As shown, it is connected to the second end of the annular body 33 away from the disc-shaped body 23, or it can be connected to the middle of the annular body 33. The free end of each elastic claw 31 extends obliquely toward the disc-shaped body 23 and away from the first axis 34 of the annular body 33.

[0039] Among them, when the sealing plug is used to seal such as Figure 4 When referring to the functional hole 42 of the sheet metal 4 shown, refer to Figure 6 and Figure 7 As shown, the elastic claw 31 passes through the functional hole 42 from the first side of the sheet metal 4 to the second side of the sheet metal 4. The free end of the elastic claw 31 abuts against the second side of the sheet metal 4, and the sealing part 2 abuts against the first side of the sheet metal 4. For example, the first side of the sealing part 2 abuts against the first side of the sheet metal 4.

[0040] refer to Figure 3 and combined Figure 6 As shown, the elastic hook 31 has an inclined second guide surface 312 on the side opposite to the first axis 34 and opposite to the sealing part 2, and an abutment surface 311 located at the free end. The second guide surface 312 can be a plane or a curved surface. This embodiment does not limit the form of the second guide surface 312, as long as the distance between a point on the second guide surface 312 near the fixed end of the elastic hook 31 and the first axis 34 is less than or equal to the distance between a point on the second guide surface 312 near the free end of the elastic hook 31 and the first axis 34 in the natural state of the elastic hook 31.

[0041] For example, the closest distance between a point on the second guide surface 312 and the second axis 43 of the functional hole 43 is less than the radius of the functional hole 41, and the farthest distance between a point on the second guide surface 312 and the second axis 43 of the functional hole 43 is greater than the radius of the functional hole 41.

[0042] Therefore, when installing the sealing plug from the first side of the sheet metal 4 into the functional hole 42 of the sheet metal 4, the second guide surface 312 of each elastic claw 31 is first pressed against the stop edge 41 of the functional hole 42, and force is continued to be applied. As the second guide surface 312 of the elastic claw 31 is subjected to the squeezing force from the stop edge 41 on the side away from the first axis 34, the elastic claw 31 is forced to contract towards the side closer to the axis, and thus easily passes through the functional hole 42.

[0043] Until the elastic claw 31 completely passes through the functional hole 42 and reaches the second side of the sheet metal 4, the sealing part 2 abuts against the first side of the sheet metal 4, thus preventing it from passing through the functional hole 42 and sealing it. The elastic claw 31 then returns to its original position, with the abutting surface 311 of its free end abutting against the second side of the sheet metal 4, preventing it from passing through the functional hole 42 in the opposite direction. This ensures that the sealing plug is not easily dislodged.

[0044] In one example, the surface shape of the first side of the sealing part 2 can be adapted to the surface of the first side of the sheet metal 4, so that the sealing part 2 can seal the functional hole 42 from the first side of the sheet metal 4.

[0045] For example, the surface of the first side of the sealing part 2 can be a plane, and correspondingly, the surface of the first side of the sheet metal 4 can be a plane that matches the surface of the first side of the sealing part 2; or, for example, the surface of the first side of the sealing part 2 can be a curved surface, and correspondingly, the surface of the first side of the sheet metal 4 can be a curved surface that matches the surface of the first side of the sealing part 2; or, for example, the surface of the first side of the sealing part 2 can have an annular plane surrounding the wire harness through hole 21, and correspondingly, the surface of the first side of the sheet metal 4 can be a curved surface that matches the annular plane of the first side of the sealing part 2 and surrounds the functional hole 42. Thus, the sealing part 2 can achieve sealing of the functional hole 42.

[0046] In one example, in order for the sealing part 2 to block the functional hole 42, the shape of the disc-shaped body 23 is adapted to the shape of the functional hole 42, so that the projection of the disc-shaped body 23 along the second axis 43 of the functional hole 42 can cover the functional hole 42.

[0047] In one example, the sealing part 2 also has an annular elastic flange 22, which is connected to the disc-shaped body 23 and surrounds the wire harness through hole 21. When the sealing plug is used to block the functional hole 42, the annular elastic flange 22 is adapted to abut against a first side of the sheet metal 4 around the functional hole 42. For example, the annular elastic flange 22 can surround the periphery of the disc-shaped body 23 and extend towards the elastic claw 31. It should be noted that the disc-shaped body 23 and the annular elastic flange 22 can be integrally formed, or they can be two independent structural parts fixed together by snap-fitting, adhesive bonding, or other methods.

[0048] Thus, after the elastic claw 31 has completely passed through the functional hole 42 and reached the second side of the sheet metal 4, the annular elastic flange 22 on the disc-shaped body 23 can abut against the first side surface of the sheet metal 4 surrounding the functional hole 42. Since the annular elastic flange 22 has better deformation capability, it can fit the annular elastic flange 22 against the first side surface of the sheet metal 4, thereby improving the sealing performance of the sealing part 2 against the functional hole 42.

[0049] In one example, in order for the sealing part 2 to block the functional hole 42, the shape of the outer edge contour of the annular elastic flange 22 is adapted to the shape of the functional hole 42, so that the projection of the outer edge of the annular elastic flange 22 along the second axis line 43 of the functional hole 42 is completely outside the functional hole 42.

[0050] It should be noted that in the above example, the shape of the functional hole 42 can be arbitrary, and the projection of the disc-shaped body 23 along the second axis 43 of the functional hole 42 or the projection of the outer edge of the annular elastic flange 22 along the second axis 43 of the functional hole 42 can also be arbitrary, as long as the projection of the disc-shaped body 23 along the second axis 43 of the functional hole 42 can cover the functional hole 42, or the projection of the outer edge of the annular elastic flange 22 along the second axis 43 of the functional hole 42 is completely outside the functional hole 42.

[0051] For example, the shape of the functional hole 42 can be a square with a diagonal length of 2cm, and the projection of the disc-shaped body 23 along the second axis 43 of the functional hole 42 or the projection of the outer edge of the annular elastic flange 22 along the second axis 43 of the functional hole 42 can be a circle with a radius of 1.5cm; or, for another example, the shape of the functional hole 42 can be a circle with a radius of 1.5cm, and the projection of the disc-shaped body 23 along the second axis 43 of the functional hole 42 or the projection of the outer edge of the annular elastic flange 22 along the second axis 43 of the functional hole 42 can be a square with a diagonal length of 5cm.

[0052] In one example, the limiting part 3 also has a plurality of axial limiting structures 322, which are distributed around and connected to the annular body 33, wherein when the sealing plug is used to block the functional hole 42, each axial limiting structure 322 is adapted to abut against the first side of the sheet metal 4 along the second axis 43 of the functional hole 42.

[0053] The axial limiting structure 322 can be a first rib structure connected to the outer wall of the annular body 33, with multiple first rib structures distributed around the annular body 33. When the sealing plug is used to seal the functional hole 42, the side of each first rib structure facing the sheet metal 4 along the second axis 43 of the functional hole 42 abuts against the first side of the sheet metal 4. The number of axial limiting structures 322 can be three, four, or more.

[0054] For example, when the sealing plug is used to block the functional hole 42, the first side of each first rib structure facing the sheet metal 4 is located in the same plane perpendicular to the second axis 42, and the farthest distance between a point on the first side and the second axis 43 of the functional hole 42 is greater than the radius of the functional hole 42. Therefore, after the elastic claw 31 completely passes through the functional hole 42 and reaches the second side of the sheet metal 4, the side of each first rib structure facing the sheet metal 4 will abut against the first side of the sheet metal 4 and cannot pass through the functional hole 42.

[0055] As can be seen from the above, after the first side of the axial limiting structure 322 abuts against the first side of the sheet metal 4, the distance between the disc-shaped body 23 of the sealing part 2 and the first side of the sheet metal 4 is limited. Therefore, the deformation of the annular elastic flange 22 when it abuts against the first side of the sheet metal 4 is also limited, so that the deformation of the annular elastic flange 22 can be maintained within a better range, avoiding insufficient deformation that would not achieve a sufficient sealing effect, and avoiding excessive deformation that would cause a gap between the annular elastic flange 22 and the sheet metal 4, resulting in sealing failure.

[0056] In one example, the limiting part 3 also has a plurality of radial limiting structures 323, which are distributed around and connected to the annular body 33. When the sealing plug is used to seal the functional hole 42, each radial limiting structure 323 is adapted to abut against the stop edge 41 of the functional hole 42 radially. The number of radial limiting structures 323 can be two, three, four, or more.

[0057] The radial limiting structure 323 can be a second rib structure connected to the outer wall of the annular body 33. Multiple second rib structures are distributed around the annular body 33, and when the sealing plug is used to block the functional hole 42, the second side of each second rib structure away from the first axis of the annular body 33 abuts against the stop edge 41 of the functional hole 42.

[0058] For example, the functional hole 42 is circular, and the second side of each second rib structure is located on a circle coaxial with the functional hole 42, and the radius of the circle is equal to or slightly smaller than the radius of the functional hole 42.

[0059] In this way, when the sealing plug is used to seal the functional hole 42, the radial limiting structure 323 can ensure the radial position of the sealing part 2 and the elastic claw 31. Even if the wire harness 5 in the wire harness through hole 21 shakes or is pulled, it can still avoid displacement, which would reduce the sealing performance of the sealing plug or cause it to fall off.

[0060] In one example, the limiting part 3 further has a plurality of first guide surfaces 321, which are adapted to be inclined opposite to the first axis line 34 and opposite to the disc-shaped body 23. The plurality of first guide surfaces 321 are distributed around the annular body 33 and located on the side of the radial limiting structure 323 away from the disc-shaped body 23. When the sealing plug is used to block the functional hole 42, the farthest distance between a point on the first guide surface 321 and the second axis line 43 of the functional hole 42 corresponds to the farthest distance between a point on the radial limiting structure 323 and the second axis line 43 of the functional hole 42. The number of first guide surfaces 321 can be three, four, or more.

[0061] For example, the farthest distance between a point on the first guide surface 321 and the second axis 43 of the functional hole 42 is equal to or slightly less than the farthest distance between a point on the radial limiting structure 323 and the second axis 43 of the functional hole 42.

[0062] The first guide surface 321 can be an inclined surface on the third rib structure facing away from the first axis 34 and the disc-shaped body 23. Each third rib structure can be connected to the outer wall of the annular body 33 and distributed around the annular body 33, with the third rib structure located on the side of the radial limiting structure 323 away from the disc-shaped body 23. Simultaneously, the first guide surface 321 can extend from the disc-shaped body 23 towards the side away from the first axis 34 until the farthest distance between a point on the first guide surface 321 and the second axis 43 of the functional hole 42 is equal to or slightly less than the farthest distance between a point on the radial limiting structure 323 and the second axis 43 of the functional hole 42.

[0063] Thus, when installing the sealing plug from the first side of the sheet metal 4 into the functional hole 42 of the sheet metal 4, if there is a deviation in the initial position of the sealing plug during installation, by having the first guide surface 321 abut against the stop edge 41 of the functional hole 42 before the radial limiting structure 323, the position of the sealing plug can be guided during the installation process, so that the radial limiting structure 323 can smoothly enter the functional hole 42. Therefore, it is beneficial to realize the installation of the sealing plug and the radial limiting structure 323's radial limiting of the sealing plug.

[0064] In one example, the axial limiting structure 322, the radial limiting structure 323, and the structure supporting the first guide surface 321 can be three independent structural components, each connected to the annular body 33, or they can be configured as a single integral rib structure 32. For example... Figure 3 As shown, eight rib structures 32 are provided on the outer wall of the annular body 33. Each rib structure 32 is a first rib structure, a second rib structure, and a third rib structure, arranged sequentially from the side closest to the disc-shaped body 23 to the side furthest from the disc-shaped body 23.

[0065] The first side surfaces of the first rib structure facing the sheet metal 4 are all located in the same plane perpendicular to the second axis 42, and the farthest distance between a point on the first side surface and the first axis 34 is greater than the radius of the functional hole 42. The end of the first side surface closest to the first axis 34 is connected to the first end of the second side surface of the second rib structure, and the second side surface extends away from the disc-shaped body 23 along a direction parallel to the first axis 34. The second end of the second side surface is connected to the first guide surface 321 on the third rib structure, and the first guide surface 321 extends to the outer wall of the annular body 33 away from the disc-shaped body 23 and close to the first axis 34. The second side surface is located on a circle coaxial with the functional hole 42, and the radius of this circle is equal to or slightly smaller than the radius of the functional hole 42.

[0066] In one example, eight rib structures 32 are connected to the annular body 33, with two rib structures 32 forming a group, and each group of rib structures 32 is evenly distributed around the annular body 33. This reduces machining while improving overall integrity and increasing the strength of the axial limiting structure 322, the radial limiting structure 323, and the first guide surface 321.

[0067] In one example, the wire harness through-hole 21 is interference-fitted with the wire harness 5. In this way, the sealing performance of the sealing plug at the wire harness through-hole 21 can be guaranteed through the fit between the wire harness through-hole 21 and the wire harness 5.

[0068] In one example, reference Figure 2 and combined Figure 6 As shown, the wire harness via 21 has a mating section 211 and a guide section 212. The mating section 211 is interference-fitted with the wire harness 5. The inner wall of the guide section 212 is tapered. The end of the guide section 212 with the smallest inner diameter is connected to the inner diameter of the mating section 211, and the smallest inner diameter of the guide section 212 matches the inner diameter of the mating section 211. For example, the smallest inner diameter of the guide section 212 and the inner diameter of the mating section 211 can be equal. The inner diameter of the mating section 211 is equal to or slightly smaller than the diameter of the wire harness 5, while the largest inner diameter of the guide section 212 is larger than the diameter of the wire harness 5.

[0069] In this way, it is relatively quick and convenient to insert the wire harness through the guide section 212 with the largest inner diameter into the wire harness through the through hole 21 and exit the wire harness through the guide section 212 with the smallest inner diameter and the mating section 211.

[0070] In one example, the annular body 33 and the wire harness via 21 can be as follows: Figure 1 The diagram shows concentricity, but it can also be non-concentric, as long as the wire harness through-hole 21 is surrounded inside the annular body 33.

[0071] In one example, when the sealing plug is used to block the functional hole 42, the first axis 34 and the second axis 43 can be collinear or non-collinear, as long as the annular body 33 can enter the functional hole 42 and the free ends of each elastic claw 31 can abut against the second side of the sheet metal 4.

[0072] In one example, when the sealing plug is in its natural state, the minimum distance between each elastic claw 31 and the sealing portion 2 along the second axis 43 is less than the thickness of the sheet metal 4. For example Figure 6 and Figure 7 As shown, since the minimum distance between each elastic claw 31 and the sealing part 2 along the second axis 43 is less than the thickness of the sheet metal 4, when the sealing plug is used to block the functional hole 42, there will be interference between the sealing part 2 and each elastic claw 31 and the sheet metal 4, so that the sealing part 2 and the elastic claw 31 clamp the sheet metal 4, thereby helping to prevent the sealing plug from falling off.

[0073] In one example, when the sealing plug is used to seal the functional hole 42, multiple resilient claws 31 are evenly distributed around the second axis 43 of the functional hole 42. For example Figure 3 and combined Figure 6 As shown, the first axis 34 and the second axis 43 are collinear, and four elastic claws 31 are evenly distributed around the second axis 43. This ensures that the interference between the sealing part 2 and the circumferential surface of the functional hole 4 is uniform, thereby helping to ensure the sealing performance of the sealing part 2 to the functional hole 4.

[0074] In one example, to improve the sealing performance of the sealing part 2 in blocking the functional hole 42, the sealing part 2 can be made of a soft rubber material, or at least the portion of the sealing part 2 that abuts against the sheet metal 4 and the portion of the sealing part 2 that mates with the wire harness 5 can be made of a soft rubber material. The soft rubber material can be rubber, TPE (Thermoplastic Elastomer), PVC (Polyvinylchloride), TPU (Thermoplastic Polyurethanes), etc. Because the soft rubber material has good deformability, it can achieve a better sealing fit with the sheet metal 4 and the wire harness 5, thereby achieving a better seal.

[0075] For example, the disc-shaped body 23 and the annular elastic flange 22 of the sealing part 2 can both be made of soft rubber; or, for example, the annular elastic flange 22 can be made of soft rubber, while the disc-shaped body 23 is made of hard rubber.

[0076] In one example, the limiting part 3 is made of hard rubber. Hard rubber is a hard and tough vulcanized rubber made by vulcanizing unsaturated rubber with a high dose of sulfur. Its glass transition temperature is above room temperature and it can hardly be stretched.

[0077] In one example, the disc-shaped body 23 and the annular elastic flange 22 can be integrally injection molded, or they can be two independent structural parts fixed together by adhesive bonding or injection molding.

[0078] In one example, the annular body 33, the elastic claw 31, the axial limiting structure 322, the radial limiting structure 323, and the structure supporting the first guide surface 321 can be integrally injection molded, or they can be multiple independent structural components fixed together by adhesive bonding or injection molding.

[0079] In one example, the annular body 33 and the disc-shaped body 23 can be integrally injection molded, or they can be two independent structural parts fixed together by adhesive bonding or injection molding.

[0080] In this embodiment of the present disclosure, when installing the sealing plug from the first side of the sheet metal 4 into the functional hole 42 of the sheet metal 4, the second guide surface 312 of each elastic claw 31 is first pressed against the stop edge 41 of the functional hole 42, and force is continued to be applied. Since the second guide surface 312 of the elastic claw 31 is subjected to the squeezing force from the stop edge 41 on the side away from the first axis line 34, the elastic claw 31 is forced to contract towards the side closer to the axis, and thus easily passes through the functional hole 42.

[0081] Until the elastic claw 31 completely passes through the functional hole 42 and reaches the second side of the sheet metal 4, the sealing part 2 abuts against the first side of the sheet metal 4, thus preventing it from passing through the functional hole 42 and sealing it. The elastic claw 31 then returns to its original position, with the abutting surface 311 of its free end abutting against the second side of the sheet metal 4, preventing it from passing through the functional hole 42 in the opposite direction. This ensures that the sealing plug is not easily dislodged.

[0082] The embodiments of this disclosure also provide a vehicle, wherein a functional hole 42 is provided on the sheet metal 4 of the vehicle, and the vehicle further includes a sealing plug as described in any of the first aspects. When the sealing plug is used to block the functional hole 42 of the sheet metal 4, the elastic claw 31 of the sealing plug passes from the first side of the sheet metal 4 through the functional hole 42 to the second side of the sheet metal 4, the free end of the elastic claw 31 abuts against the second side of the sheet metal 4, and the sealing part 2 of the sealing plug abuts against the first side of the sheet metal 4.

[0083] In this embodiment of the present disclosure, when installing the sealing plug from the first side of the sheet metal 4 into the functional hole 42 of the sheet metal 4, the second guide surface 312 of each elastic claw 31 is first pressed against the stop edge 41 of the functional hole 42, and force is continued to be applied. Since the second guide surface 312 of the elastic claw 31 is subjected to the squeezing force from the stop edge 41 on the side away from the first axis line 34, the elastic claw 31 is forced to contract towards the side closer to the axis, and thus easily passes through the functional hole 42.

[0084] Until the elastic claw 31 completely passes through the functional hole 42 and reaches the second side of the sheet metal 4, the sealing part 2 abuts against the first side of the sheet metal 4, thus preventing it from passing through the functional hole 42 and sealing it. The elastic claw 31 then returns to its original position, with the abutting surface 311 of its free end abutting against the second side of the sheet metal 4, preventing it from passing through the functional hole 42 in the opposite direction. This ensures that the sealing plug is not easily dislodged.

[0085] It should be noted that the terms "first," "second," etc., used in the specification and claims of this disclosure 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 disclosure 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.

[0086] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A closure member, characterized in that, The sealing plug includes a sealing part (2) and a limiting part (3); The sealing part (2) has a disc-shaped body (23), and the center of the disc-shaped body (23) has a wire harness through hole (21) suitable for the wire harness (5) to pass through. The limiting part (3) has an annular body (33) and a plurality of elastic claws (31) distributed around the annular body (33). The annular body (33) is connected to the disc-shaped body (23) and surrounds the wire harness through hole (21). The fixed end of each elastic claw (31) is connected to the annular body (33), and the free end extends obliquely toward the disc-shaped body (23) and away from the first axis (34) of the annular body (33). When the sealing plug is used to block the functional hole (42) of the sheet metal (4), the elastic hook (31) passes from the first side of the sheet metal (4) through the functional hole (42) to the second side of the sheet metal (4), the free end of the elastic hook (31) abuts against the second side of the sheet metal (4), and the sealing part (2) abuts against the first side of the sheet metal (4); The sealing part (2) also has an annular elastic flange (22), which is connected to the disc-shaped body (23) and surrounds the wire harness through hole (21). When the sealing plug is used to block the functional hole (42), the annular elastic flange (22) is adapted to abut against the first side of the sheet metal (4) around the functional hole (42); The limiting part (3) also has a plurality of axial limiting structures (322), which are distributed around the annular body (33) and connected to the annular body (33); When the sealing plug is used to block the functional hole (42), each of the axial limiting structures (322) is adapted to abut against the first side of the sheet metal (4) along the second axis (43) of the functional hole (42) to limit the distance between the disc-shaped body (23) of the sealing part (2) and the first side of the sheet metal (4); The limiting part (3) also has a plurality of radial limiting structures (323), which are distributed around the annular body (33) and connected to the annular body (33); When the sealing plug is used to block the functional hole (42), each of the radial limiting structures (323) is adapted to abut against the stop edge (41) of the functional hole (42) in the radial direction of the functional hole (42); The limiting part (3) also has a plurality of first guide surfaces (321), the first guide surfaces (321) being adapted to be inclined opposite to the first axis (34) and opposite to the disc-shaped body (23), the plurality of first guide surfaces (321) being distributed around the annular body (33) and located on the side of the radial limiting structure (323) away from the disc-shaped body (23); When the sealing plug is used to block the functional hole (42), the farthest distance between the point on the first guide surface (321) and the second axis (43) of the functional hole (42) is adapted to the farthest distance between the point on the radial limiting structure (323) and the second axis (43) of the functional hole (42).

2. The occlusion device of claim 1, wherein, The wire harness through-hole (21) is interference-fitted with the wire harness (5).

3. The sealing plug according to claim 2, characterized in that, The wire harness via (21) has a mating section (211) and a guide section (212). The mating section (211) is interference-fitted with the wire harness (5). The inner wall of the guide section (212) is tapered. The end of the guide section (212) with the smallest inner diameter is connected to the inner diameter of the mating section (211), and the smallest inner diameter of the guide section (212) matches the inner diameter of the mating section (211).

4. The sealing plug according to claim 1, characterized in that, When the sealing plug is in its natural state, the minimum distance between each of the elastic claws (31) and the sealing part (2) along the second axis (43) is less than the thickness of the sheet metal (4).

5. The sealing plug according to claim 4, characterized in that, When the sealing plug is used to seal the functional hole (42), the plurality of elastic claws (31) are evenly distributed around the second axis (43) of the functional hole (42).

6. A vehicle, characterized in that, The vehicle has a functional hole (42) on its sheet metal (4), and the vehicle also includes a sealing plug as described in any one of claims 1 to 5.

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