A vehicle water-proof door hole sealing strip and vehicle

Abstract

The utility model relates to a kind of vehicle waterproof door hole sealing strip and vehicle, including sealing strip body, butyl rubber layer and double bubble tube sealing support structure, the butyl rubber layer is set to the sealing strip body for with the card joint part of vehicle body sheet metal stop opening installation, the double bubble tube sealing support structure is set to the sealing strip body for with the sealing lip edge part of door cooperation.The utility model has the beneficial effect that it realizes double dynamic sealing, improves waterproof reliability and enhances impact resistance and deformation resistance.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to a waterproof door opening sealing strip for vehicles and a vehicle. Background Technology

[0002] Automotive door seals are a key component of the vehicle's sealing system, and their performance directly affects the vehicle's waterproofing, sound insulation, and dustproofing. Currently, in the passenger vehicle sector, especially in models equipped with sliding doors, door seal structures generally face severe waterproofing challenges. Common automotive sliding door sealing solutions typically employ a door seal structure with only one sealing lip and a single sealing bubble. While this structure can meet basic sealing requirements under normal conditions, its insufficient sealing reliability becomes apparent during rigorous wading tests or exposure to heavy rain or high-pressure water jet washing, frequently resulting in leaks and failing to meet users' increasingly demanding requirements for vehicle quality.

[0003] There are two main problems: First, the side panel sheet metal of traditional cars has microscopic unevenness and large opening tolerance during the manufacturing and overlapping process. The traditional single-bubble tube door opening strip structure is difficult to completely fill these irregular gaps. When wading through water or encountering large water, water can easily seep into the car body from the part of the door opening strip that is stuck at the sheet metal stop.

[0004] Secondly, the single-bubble tube design is easily deformed when subjected to strong vertical water flow, resulting in a momentary gap in the sealing contact surface between it and the door sheet metal, allowing water to enter through the gap. This structure has weak resistance to impact deformation, which is the main reason for seal failure under dynamic wading conditions.

[0005] In summary, due to the limitations of sheet metal manufacturing tolerances and the insufficient sealing capacity of single-bubble tube structures, traditional door opening strip cross-section design faces extremely high technical challenges. A completely new sealing structure solution is urgently needed to fundamentally improve the reliable waterproof performance of vehicles, especially sliding doors, under harsh conditions. Utility Model Content

[0006] The purpose of this utility model is to provide a vehicle waterproof door opening sealing strip and vehicle that achieves dual dynamic sealing, improves waterproof reliability, and enhances impact and deformation resistance.

[0007] A waterproof door opening sealing strip for vehicles includes a sealing strip body, a butyl rubber layer, and a double-bubble tube sealing support structure. The butyl rubber layer is disposed at the snap-fit ​​portion of the sealing strip body for installation with the body sheet metal stop, and the double-bubble tube sealing support structure is disposed at the sealing lip portion of the sealing strip body for mating with the door.

[0008] In the above solution, the butyl rubber layer set at the snap-fit ​​part utilizes its soft, highly viscous, and non-curing properties to be fully compressed during installation, automatically filling the inherent unevenness and overlap tolerance gaps of the body sheet metal stop, thereby blocking the water seepage path from this point. After the door is closed, the dual-bubble tube sealing support structure forms a wider support surface and stronger recovery force by contacting and compressing with the door sheet metal. When subjected to a strong vertical water flow impact, the dual-bubble tube sealing support structure can provide support stiffness far exceeding that of a single-bubble tube, effectively resisting impact deformation and preventing water seepage gaps caused by the instantaneous crushing of the bubble tubes, ensuring the stability of dynamic sealing. The butyl rubber layer solves the static sheet metal gap leakage problem, while the dual-bubble tube structure solves the dynamic water flow impact leakage problem, significantly improving the sealing reliability under extreme water wading conditions.

[0009] Furthermore, the thickness of the butyl rubber layer is between 2.5 mm and 3.5 mm.

[0010] In the above solution, the butyl rubber layer within this thickness range has the optimal compression deformation range. When the thickness is less than 2.5mm, the rubber layer is too thin, and its deformation filling capacity is insufficient, making it difficult to effectively compensate for the maximum tolerance and unevenness of the sheet metal, and the sealing effect will be significantly reduced. When the thickness exceeds 3.5mm, the rubber layer is too thick and too soft, which not only leads to material waste and increased costs, but also causes edge curling or extrusion during installation due to excessive adhesion, which in turn destroys the continuity of the seal and abnormally increases the resistance to closing the door. The 2.5mm to 3.5mm thickness of the present invention precisely ensures that the butyl rubber can fully fill the gap after installation and pressing, while still maintaining its shape stability and preventing uncontrollable plastic flow, thus ensuring the convenience of installation and the reliability of the seal.

[0011] Furthermore, the dual-bubble tube sealing support structure includes two cavity bubble tubes arranged side by side. One cavity bubble tube contacts and compresses with the door when the door is closed, providing the main seal, while the other cavity bubble tube serves as an auxiliary support, enhancing the sealing strip body's resistance to impact deformation in the vertical direction.

[0012] In the above scheme, one bubble tube provides the main seal, ensuring a basic and tight static sealing contact surface when the door is closed, while the other bubble tube serves as an auxiliary support. Its core function is not direct sealing, but rather providing solid back support for the main sealing bubble tube. When encountering a strong vertical water flow impact, the auxiliary support bubble tube can effectively resist the impact force, preventing the main sealing bubble tube from being over-compressed or becoming unstable and collapsing. This ensures the integrity and reliability of the sealing interface under extreme dynamic conditions. The two bubble tubes are arranged side by side, forming a more stable and rigid support system. Compared with a single bubble tube, this structure has a larger section modulus and restoring moment in the vertical direction. When the water flow attempts to deform it, the double bubble tube structure can work together to provide resistance far exceeding that of a single bubble tube.

[0013] Furthermore, the hollow bubble tube is provided with an exhaust hole, which is suitable for providing a smooth exhaust channel for the hollow bubble tube when the car door is opened and closed.

[0014] In the above solution, at the moment the car door closes, the air inside the bubble tube needs to be quickly and smoothly discharged through the vent hole. The presence of the vent hole eliminates internal air resistance, allowing the bubble tube to deform immediately and smoothly and fit tightly against the car door sheet metal when the car door is closed. This ensures the rapid establishment and full compaction of the sealing contact surface, thereby improving the immediacy and reliability of the static seal.

[0015] Furthermore, the hollow bubble tube is made of sponge adhesive.

[0016] In the above solution, the sponge adhesive is an elastic material with a continuous porous foam structure. Under the condition of repeated closing and compression of the car door, it can exhibit excellent instantaneous rebound performance and excellent resistance to permanent compression deformation. This means that the sealing strip can continuously provide stable and reliable sealing contact force throughout the entire service life of the vehicle, effectively avoiding the common problem of plastic deformation and reduced sealing force caused by long-term compression of traditional solid rubber.

[0017] Furthermore, the sealing strip body is provided with a U-shaped metal core strip.

[0018] In the above solution, the U-shaped metal core strip forms the rigid skeleton of the sealing strip. Its unique U-shaped cross section can exert a lasting, uniform and strong clamping force on the body sheet metal stop like a spring clip. This ensures that the door opening sealing strip will not loosen, slip or accidentally detach from the sheet metal under conditions of long-term vehicle vibration, high-speed driving or frequent door opening and closing, which greatly improves the reliability and durability of the installation.

[0019] A vehicle comprising a waterproof door opening seal as described in any of the above embodiments.

[0020] In the above solution, the vehicle waterproof door opening sealing strip can improve the overall sealing performance of the vehicle, achieving noise reduction and sealing.

[0021] This utility model discloses a vehicle waterproof door opening sealing strip and a vehicle with the beneficial effects of achieving dual dynamic sealing, improving waterproof reliability, and enhancing impact and deformation resistance. The butyl rubber layer, located at the snap-fit ​​point, utilizes its soft, highly viscous, and non-curing properties to be fully compressed during installation, automatically filling the inherent unevenness and overlap gaps of the vehicle body sheet metal, thereby blocking water seepage paths from these points. After the door is closed, the dual-bubble tube sealing support structure, in contact with the door sheet metal, forms a wider support surface and stronger resilience. When subjected to strong vertical water flow impact, the dual-bubble tube sealing support structure provides support stiffness far exceeding that of a single-bubble tube, effectively resisting impact deformation and preventing water seepage gaps caused by instantaneous collapse of the bubble tubes, ensuring the stability of the dynamic seal. The butyl rubber layer solves the static sheet metal gap leakage problem, while the dual-bubble tube structure solves the dynamic water flow impact leakage problem, significantly improving sealing reliability under extreme wading conditions. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a vehicle waterproof door opening sealing strip structure according to one embodiment.

[0023] Figure 2 This is a schematic diagram of a vehicle waterproof door opening sealing strip after compression, as shown in one embodiment.

[0024] The following are the reference numerals: 1. Sealing strip body; 2. Sheet metal stop; 3. Double bubble tube sealing support structure; 31. Hollow bubble tube; 32. Vent hole; 4. Butyl rubber layer; 5. Metal core strip. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0026] like Figure 1 and Figure 2As shown in a preferred embodiment, a vehicle waterproof door opening sealing strip of the present invention includes a sealing strip body 1, a butyl rubber layer 4, and a double-bubble tube sealing support structure 3. The butyl rubber layer 4 is disposed at the snap-fit ​​part of the sealing strip body 1 for installation with the body sheet metal stop 2, and the double-bubble tube sealing support structure 3 is disposed at the sealing lip part of the sealing strip body 1 for cooperation with the door. By using the butyl rubber layer 4 located at the snap-fit ​​joint, its soft, highly viscous, and non-curing properties allow it to be fully compressed during installation, automatically filling the inherent unevenness and overlap gaps of the body sheet metal stop 2, thus blocking the water seepage path from this point. After the door is closed, the double bubble tube sealing support structure 3, in contact with the door sheet metal, forms a wider support surface and stronger recovery force. When subjected to a strong vertical water flow impact, the double bubble tube sealing support structure 3 can provide support stiffness far exceeding that of a single bubble tube, effectively resisting impact deformation and preventing water seepage gaps caused by the instantaneous collapse of the bubble tubes, ensuring the stability of the dynamic seal. The butyl rubber layer 4 solves the static sheet metal gap leakage problem, while the double bubble tube structure solves the dynamic water flow impact leakage problem, significantly improving the sealing reliability under extreme water wading conditions.

[0027] like Figure 1 and Figure 2 As shown, in some embodiments, the thickness of the butyl rubber layer 4 is between 2.5mm and 3.5mm. The butyl rubber layer 4 within this thickness range has the optimal compression deformation range. When the thickness is less than 2.5mm, the rubber layer is too thin, its deformation filling capacity is insufficient, and it is difficult to effectively compensate for the maximum tolerance and unevenness of the sheet metal, resulting in a significant decrease in sealing performance. Conversely, when the thickness exceeds 3.5mm, the rubber layer is too thick and too soft, leading not only to material waste and increased costs, but also to curling or extrusion during installation due to excessive adhesion, which disrupts the continuity of the seal and abnormally increases the closing resistance. The 2.5mm to 3.5mm thickness of this invention precisely ensures that the butyl rubber can fully fill the gaps after installation and pressing while maintaining shape stability, preventing uncontrollable plastic flow, and guaranteeing ease of installation and reliable sealing.

[0028] like Figure 1 and Figure 2As shown, in some embodiments, the dual-bubble tube sealing support structure 3 includes two cavity bubble tubes 31 arranged side by side. One cavity bubble tube 31 contacts and compresses with the door when the door is closed, providing the main seal. The other cavity bubble tube 31 serves as an auxiliary support, enhancing the sealing strip body 1's resistance to impact deformation in the vertical direction. One bubble tube provides the main seal, ensuring a basic and tight static sealing contact surface when the door is closed. The other bubble tube serves as an auxiliary support, whose core function is not direct sealing, but rather providing solid back support for the main sealing bubble tube. When encountering strong vertical water flow impact, the auxiliary support bubble tube can effectively resist the impact force, preventing the main sealing bubble tube from being over-compressed or becoming unstable and collapsing. This ensures the integrity and reliability of the sealing interface under extreme dynamic conditions. The two bubble tubes arranged side by side constitute a more stable and rigid support system. Compared with a single bubble tube, this structure has a larger section modulus and restoring moment in the vertical direction. When water flow impact attempts to deform it, the dual-bubble tube structure can work together to provide resistance far exceeding that of a single bubble tube.

[0029] like Figure 1 and Figure 2 As shown, in some embodiments, the hollow bubble tube 31 is provided with an exhaust port 32, which is suitable for providing a smooth exhaust channel for the hollow bubble tube 31 when the car door is opened and closed. At the moment the car door closes, the air in the bubble tube needs to be quickly and smoothly discharged through the exhaust port 32. The presence of the exhaust port 32 eliminates internal air resistance, allowing the bubble tube to deform immediately and smoothly and fit tightly against the car door sheet metal when the car door is closed, ensuring rapid establishment and full compaction of the sealing contact surface, thereby improving the immediacy and reliability of the static seal.

[0030] like Figure 1 and Figure 2 As shown, in some embodiments, the cavity bubble tube 31 is made of sponge adhesive. Sponge adhesive is an elastic material with a continuous porous pore structure. Under the condition of repeated closing and compression of the car door, it can exhibit excellent instantaneous rebound performance and excellent resistance to permanent compression deformation. This means that the sealing strip can continuously provide stable and reliable sealing contact force throughout the entire service life of the vehicle, effectively avoiding the common problem of plastic deformation and reduced sealing force caused by long-term compression of traditional solid rubber.

[0031] like Figure 1 and Figure 2As shown, in some embodiments, the sealing strip body 1 is provided with a U-shaped metal core strip 5. The U-shaped metal core strip 5 constitutes the rigid skeleton of the sealing strip. Its unique U-shaped cross section can generate a lasting, uniform and strong clamping force on the body sheet metal stop 2 like a spring clip. This ensures that the door opening sealing strip will not loosen, slip or accidentally detach from the sheet metal under conditions of long-term vehicle vibration, high-speed driving or frequent door opening and closing, which greatly improves the reliability and durability of the installation.

[0032] A vehicle includes a waterproof door opening seal strip as described in any of the above embodiments. The waterproof door opening seal strip improves the overall sealing performance of the vehicle, achieving noise reduction and airtightness.

[0033] This utility model relates to a waterproof door opening sealing strip for vehicles and the working principle and process of the vehicle. At the sheet metal stop 2 position, butyl rubber fills all the uneven areas of the sheet metal, keeping water out of reach. After the double bubble tube sealing support structure 3 contacts and is compressed with the sheet metal, the vertical resistance of the double bubble tube sealing support structure 3 is enhanced. Even if the water flow is strong, it cannot pass through the position of the double bubble tube sealing support structure 3.

[0034] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A vehicle weatherstrip door opening seal, characterized by, It includes a sealing strip body, a butyl rubber layer, and a double-bubble tube sealing support structure. The butyl rubber layer is disposed at the snap-fit ​​part of the sealing strip body for installation with the body panel stop, and the double-bubble tube sealing support structure is disposed at the sealing lip part of the sealing strip body for mating with the door.

2. The vehicle door-ditch seal of claim 1, wherein, The thickness of the butyl rubber layer is between 2.5 mm and 3.5 mm.

3. The vehicle door-ditch seal of claim 1, wherein, The dual-bubble tube sealing support structure includes two cavity bubble tubes arranged side by side. One cavity bubble tube contacts and compresses the door when the door is closed, providing the main seal, while the other cavity bubble tube serves as an auxiliary support, enhancing the sealing strip body's resistance to impact deformation in the vertical direction.

4. The vehicle waterproof door opening sealing strip according to claim 3, characterized in that, The hollow bubble tube is provided with an exhaust hole, which is suitable for providing a smooth exhaust channel for the hollow bubble tube when the car door is opened and closed.

5. The vehicle door-ditch seal of claim 3, wherein, The hollow bubble tube is made of sponge rubber.

6. The vehicle door-ditch seal of claim 1, wherein, The sealing strip body has a U-shaped metal core strip.

7. A vehicle characterized by comprising: Including the vehicle waterproof door opening sealing strip as described in any one of claims 1 to 6 above.

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