Anti-deformation structure of butyl rubber strip profile for vehicle door seal
Patent Information
- Application Number
- CN202522702299.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-19
AI Technical Summary
[0003]现有大部分的车门密封堵件是通过丁基胶条粘贴在车门上的，在运输时，往往没有对丁基胶条进行额外保护，当遇到气温较高的情况时，丁基胶条会受热变形，如将已经变形后的丁基胶条安装在车门后，会出现密封不严的情况，严重时甚至出现漏水的情况
该用于车门密封堵件的丁基胶条型面抗变形结构，抗变形包裹条的U型包裹端、水平段与倾斜段组成多段式结构，能全方位支撑约束丁基胶条本体，有效抵抗高温下的软化下垂及物流运输中的外力挤压，保障胶条型面完整，同时水平段和倾斜段的特定夹角设计可适配防水边轮廓并紧密贴合，提升了密封性能，一体式注塑环形结构的抗变形包裹条，能对胶条形成环绕式保护，使其各部位受力均匀以应对全周向变形风险。
Smart Images
Figure CN224898520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door sealing plugs technology, specifically to a butyl rubber strip profile anti-deformation structure for automotive door sealing plugs. Background Technology
[0002] Door sealing plugs are key sealing components in automotive and transportation door systems. They are mainly used in pre-drilled holes in door frames, wiring harnesses, pipe passages, and gaps in door shell splicing. Their core function is to achieve a sealed isolation between the door and the vehicle body. They are usually made of elastic materials such as EPDM rubber and silicone in one piece. Some are made into special-shaped parts with buckles or interference fits through injection molding. They are fixed to the installation position by snap-fit, press-fit, or adhesive. They can effectively prevent rainwater, dust, mud, and other external impurities from entering the interior of the door. At the same time, they also have sound insulation, shock absorption, and heat insulation effects. They prevent the internal locking mechanism, window regulator, and other components of the door from being corroded, stuck, or malfunctioning due to the intrusion of foreign objects, thus ensuring the stable operation of the door system.
[0003] Most existing car door sealing components are attached to the car door using butyl rubber strips. During transportation, the butyl rubber strips are often not given extra protection. When exposed to high temperatures, the butyl rubber strips will deform due to heat. If the deformed butyl rubber strips are installed behind the car door, the seal will not be tight, and in severe cases, water leakage may even occur.
[0004] Therefore, we propose a butyl rubber strip profile anti-deformation structure for door sealing plugs. Summary of the Invention
[0005] The technical problem to be solved by this utility model is to provide a butyl rubber strip profile anti-deformation structure for car door sealing plugs, which can effectively solve the problems in the prior art.
[0006] The technical solution adopted by this utility model is: a butyl rubber strip anti-deformation structure for a car door sealing plug, including an inner plug, a waterproof edge provided on the outer side of the inner plug, a connecting part provided between the inner plug and the waterproof edge, a buffer recess provided on the side of the inner plug facing the car door, a butyl rubber strip body attached to the side of the waterproof edge facing the car door, and an anti-deformation wrapping strip provided on the outer side of the butyl rubber strip body.
[0007] Preferably, the anti-deformation wrapping strip includes a U-shaped wrapping end, with a horizontal section fixedly installed on one side of the top of the U-shaped wrapping end and an inclined section fixedly installed on the other side of the top of the U-shaped wrapping end.
[0008] The above technical solution utilizes a multi-segment wrapping structure composed of a U-shaped wrapping end, a horizontal segment, and an inclined segment to provide comprehensive support and constraint for the butyl rubber strip body. This effectively resists the softening and sagging of the butyl rubber strip body under high temperature conditions and the deformation caused by external force during logistics transportation. Structurally, it ensures the integrity of the butyl rubber strip surface and reduces the risk of product defects and water leakage after loading due to strip deformation.
[0009] Preferably, the anti-deformation wrapping strip has the same outline as the butyl rubber strip body, and the butyl rubber strip body is embedded inside the U-shaped wrapping end.
[0010] Through the above technical solution, the contour-fitting design allows the anti-deformation wrapping strip to fit tightly against the butyl rubber strip body. The embedded installation of the U-shaped wrapping end can stably limit the butyl rubber strip body, ensuring that the anti-deformation wrapping strip provides precise and effective support to the butyl rubber strip body, and further enhancing the protective effect on the butyl rubber strip surface.
[0011] Preferably, both the horizontal segment and the inclined segment are fitted to the waterproof edge, the horizontal segment forms a 90° angle with the U-shaped wrapping end, and the inclined segment forms a 30° angle with the U-shaped wrapping end.
[0012] Through the above technical solution, the specific angle design between the horizontal and inclined sections allows it to perfectly fit and closely adhere to the surface contour of the waterproof edge, filling the gap between the butyl rubber strip body and the waterproof edge and enhancing the sealing performance.
[0013] Preferably, the U-shaped wrapping end, the horizontal section, and the inclined section adopt an integral injection-molded ring structure.
[0014] Through the above technical solutions, the one-piece injection-molded anti-deformation wrapping strip avoids the problems of easy breakage and loosening at the splicing points. The ring structure can form a surrounding protection for the butyl rubber strip body, so that the stress on each part of the butyl rubber strip body is uniform and the anti-deformation ability is consistent, effectively dealing with the risk of deformation in all directions during high temperature and transportation.
[0015] Preferably, the inner plug, the connecting part, and the waterproof edge are integrally injection molded, and the inner plug, the connecting part, and the waterproof edge are made of XPE material.
[0016] Through the above technical solution, the one-piece injection molding makes the inner plug, the connecting part and the waterproof edge form a stable overall structure, which improves the overall rigidity of the door sealing plug and also improves the sealing performance of the door.
[0017] Compared with the prior art, this utility model provides a butyl rubber strip profile anti-deformation structure for car door sealing plugs, which has the following beneficial effects: The butyl rubber strip used for door sealing plugs has a surface anti-deformation structure. The anti-deformation wrapping strip consists of a U-shaped wrapping end, a horizontal section, and an inclined section, forming a multi-segment structure. This structure can support and constrain the butyl rubber strip body in all directions, effectively resisting softening and sagging under high temperatures and external pressure during logistics transportation, ensuring the integrity of the strip surface. At the same time, the specific angle design of the horizontal and inclined sections can adapt to the contour of the waterproof edge and fit tightly, improving the sealing performance. The one-piece injection-molded ring structure of the anti-deformation wrapping strip can form a surrounding protection for the strip, making its various parts evenly stressed to cope with the risk of full-circumference deformation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the anti-deformation wrapping strip of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the anti-deformation wrapping strip of this utility model. Figure 2 ; Figure 5 This is a partially enlarged structural schematic diagram of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the anti-deformation wrapping strip of this utility model.
[0019] Among them: 1. Inner plug; 2. Buffer recess; 3. Connecting part; 4. Waterproof edge; 5. Butyl rubber strip body; 6. Anti-deformation wrapping strip; 601. U-shaped wrapping end; 602. Horizontal section; 603. Inclined section. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1: As Figure 1 - Figure 6As shown, the present invention provides a butyl rubber strip anti-deformation structure for a car door sealing plug, including an inner plug 1, a waterproof edge 4 on the outer side of the inner plug 1, a connecting part 3 between the inner plug 1 and the waterproof edge 4, a buffer recess 2 on the side of the inner plug 1 facing the car door, a butyl rubber strip body 5 pasted and installed on the side of the waterproof edge 4 facing the car door, and an anti-deformation wrapping strip 6 on the outer side of the butyl rubber strip body 5.
[0022] Example 2: like Figure 3 - Figure 6 As shown, this is an improvement on the previous embodiment.
[0023] Specifically, the anti-deformation wrapping strip 6 includes a U-shaped wrapping end 601, a horizontal section 602 fixedly installed on one side of the top of the U-shaped wrapping end 601, and an inclined section 603 fixedly installed on the other side of the top of the U-shaped wrapping end 601. The advantage is that the multi-segment wrapping structure composed of the U-shaped wrapping end 601, the horizontal section 602, and the inclined section 603 can provide comprehensive support and constraint for the butyl rubber strip body 5, effectively resisting the softening and sagging of the butyl rubber strip body 5 under high-temperature environments and the deformation caused by external force during logistics transportation. Structurally, this ensures the integrity of the butyl rubber strip's surface and reduces the risk of product defects and water leakage after loading due to strip deformation.
[0024] Specifically, the anti-deformation wrapping strip 6 has the same contour as the butyl rubber strip body 5, and the butyl rubber strip body 5 is embedded inside the U-shaped wrapping end 601. The advantage is that the contour-fitting design allows the anti-deformation wrapping strip 6 to fit tightly against the butyl rubber strip body 5, and the embedded installation of the U-shaped wrapping end 601 can stably limit the position of the butyl rubber strip body 5, ensuring that the anti-deformation wrapping strip 6 provides precise and effective support to the butyl rubber strip body 5, further enhancing the protective effect on the butyl rubber strip surface.
[0025] Specifically, both the horizontal section 602 and the inclined section 603 are fitted to the waterproof edge 4. The horizontal section 602 forms a 90° angle with the U-shaped wrapping end 601, and the inclined section 603 forms a 30° angle with the U-shaped wrapping end 601.
[0026] The advantage is that the specific angle design between the horizontal section 602 and the inclined section 603 allows it to perfectly fit and closely conform to the surface contour of the waterproof edge 4, filling the gap between the butyl rubber strip body 5 and the waterproof edge 4 and enhancing the sealing performance.
[0027] Specifically, the U-shaped wrapping end 601, the horizontal section 602, and the inclined section 603 adopt an integrated injection-molded ring structure. The advantages are that the integrated injection-molded anti-deformation wrapping strip 6 avoids the problems of easy breakage and loosening at the joints, while the ring structure provides encircling protection for the butyl rubber strip body 5, ensuring uniform stress distribution and consistent deformation resistance across all parts of the butyl rubber strip body 5, effectively addressing the risk of deformation in all circumferential directions during high temperatures and transportation.
[0028] Specifically, the inner plug 1, connecting part 3, and waterproof edge 4 are integrally injection molded and made of XPE material. The advantage is that the integral injection molding allows the inner plug 1, connecting part 3, and waterproof edge 4 to form a stable overall structure, improving the overall rigidity of the door sealing plug and enhancing the door's sealing performance.
[0029] Working principle: During transportation, the butyl rubber strip body 5 is prone to softening and deformation when exposed to high temperatures. To prevent water leakage due to poor sealing during later loading, the U-shaped wrapping end 601, horizontal section 602, and inclined section 603 of the anti-deformation wrapping strip 6 are designed to wrap the butyl rubber strip body 5. At the same time, the horizontal section 602 and inclined section 603 can also fit and support the waterproof edge 4. The overall design is reasonable and easy to use.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A butyl rubber strip-shaped anti-deformation structure for a door sealing plug, comprising an inner plug (1), characterized in that: The inner plug (1) is provided with a waterproof edge (4) on its outer side, and a connecting part (3) is provided between the inner plug (1) and the waterproof edge (4). The inner plug (1) is provided with a buffer recess (2) on the side facing the car door. A butyl rubber strip body (5) is pasted and installed on the side of the waterproof edge (4) facing the car door. An anti-deformation wrapping strip (6) is provided on the outer side of the butyl rubber strip body (5).
2. The butyl rubber strip profile anti-deformation structure for a car door sealing plug according to claim 1, characterized in that: The anti-deformation wrapping strip (6) includes a U-shaped wrapping end (601), a horizontal section (602) is fixedly installed on one side of the top of the U-shaped wrapping end (601), and an inclined section (603) is fixedly installed on the other side of the top of the U-shaped wrapping end (601).
3. The butyl rubber strip anti-deformation structure for a car door sealing plug according to claim 2, characterized in that: The anti-deformation wrapping strip (6) has the same outline as the butyl rubber strip body (5), and the butyl rubber strip body (5) is embedded inside the U-shaped wrapping end (601).
4. The butyl rubber strip anti-deformation structure for a car door sealing plug according to claim 2, characterized in that: Both the horizontal section (602) and the inclined section (603) are fitted to the waterproof edge (4). The horizontal section (602) forms a 90° angle with the U-shaped wrapping end (601), and the inclined section (603) forms a 30° angle with the U-shaped wrapping end (601).
5. The butyl rubber strip anti-deformation structure for a car door sealing plug according to claim 2, characterized in that: The U-shaped wrapping end (601), horizontal section (602) and inclined section (603) adopt an integral injection-molded ring structure.
6. The butyl rubber strip anti-deformation structure for a car door sealing plug according to claim 1, characterized in that: The inner plug (1), the connecting part (3) and the waterproof edge (4) are integrally injection molded and are made of XPE material.