Backdoor sealing strip water retaining assembly

Abstract

The utility model discloses a backdoor sealing strip water retaining assembly, and belongs to the technical field of automobile parts, the backdoor sealing strip water retaining assembly comprises a sealing strip, seam allowance metal plates and a seam allowance decorative plate, the sealing strip comprises a base body part with a U-shaped cross section, the first seam allowance metal plate is partially inserted into the base body part to be connected with the base body part in a clamped mode, and the seam allowance decorative plate is connected with the sealing strip. The end portion of the spigot decoration plate is close to one side face of the base body part, a gap exists between the end face of the spigot decoration plate and one side face of the base body part, a water retaining rib extending towards one side of the spigot decoration plate is arranged on one side of the base body part, and the water retaining rib blocks the gap between the end face of the spigot decoration plate and one side face of the base body part. The structure of an existing traditional back door sealing strip is optimized, the appearance problems such as gaps are avoided, the back door sealing strip is matched with the appearance, and the water guiding performance is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to a tailgate sealing strip water retaining assembly. Background Art

[0002] As a critical sealing component, the technological development of automotive tailgate sealing strips has been closely tied to the advancement of the automotive industry. Sealing strip design has evolved from simple to complex. Early designs primarily featured a single cross-section, providing only basic sealing functionality. With the application of computer-aided design (CAD), sealing strip cross-section design has become increasingly refined. The emergence of multi-cavity structures has significantly improved sealing effectiveness and sound insulation. Furthermore, the introduction of bionic design concepts has also provided new inspiration for sealing strips. For example, a sealing lip design that mimics the structure of fish scales can reduce the force required to open and close the door while maintaining a tight seal.

[0003] This application specifically relates to a water-retaining sealing strip assembly for a rear door. Related prior art, such as the Chinese patent application "A Car Rear Door Sealing Strip," application number CN200720124877.7, discloses that the strip comprises a rubber base with a metal skeleton and a tubular elastic compression head. Viewed from a cross-section, the base has a door-shaped body, with an arc-shaped pressure arm on one side and a pressure foot extending outward from the lower end of the other side. The pressure arm and pressure foot reduce the gap between the back door and the interior trim panel, improving sealing performance. Furthermore, within the door-shaped body, facing strips are arranged to hold the door frame in place. There are at least two strips per side, ensuring a more secure fit and further enhancing waterproofing. A buffer strip is located at the top of the door-shaped body to effectively cushion the door frame during closing. With this structural improvement, the rear door sealing strip effectively improves its sealing performance, while also providing greater elasticity and cushioning properties, ensuring easy door closing.

[0004] The existing tailgate sealing strip is assembled on the tailgate sheet metal, leaving a visible gap. This assembly method has drawbacks in terms of appearance and water diversion. Given the increasing demands on appearance, quality, and performance in the current automotive industry, a new tailgate sealing strip with a simple structure is needed to address the shortcomings of the previous technology. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a back door sealing strip water retaining assembly, which optimizes the existing traditional back door sealing strip structure to avoid appearance problems such as gaps, so that the back door sealing strip matches the appearance and the water conduction performance is enhanced.

[0006] The technical solution adopted in this application is: a back door sealing strip water retaining assembly, including a sealing strip, a stop sheet metal and a stop decorative plate, the sealing strip includes a base member with a U-shaped cross-section, the first stop sheet metal portion is inserted into the base member and clamped with the base member, the end of the stop decorative plate is close to one side of the base member, and there is a gap between the end face of the stop decorative plate and one side of the base member, and a water retaining rib extending toward one side of the stop decorative plate is provided on one side of the base member, and the water retaining rib blocks the gap between the end face of the stop decorative plate and one side of the base member.

[0007] Compared with the prior art, the advantage of the present application is that, by designing a base member with a U-shaped cross-section, the first stopper sheet metal portion is inserted into the base member and snapped into engagement with the base member, thereby achieving stable installation of the sealing strip at the stopper sheet metal. The sealing strip is installed into the stopper sheet metal and covered with a stopper trim. At this time, there is a gap between the end face of the stopper trim and one side of the base member. The present application designs a base member with a water retaining rib extending toward one side of the stopper trim on one side, and the water retaining rib blocks the gap between the end face of the stopper trim and one side of the base member. The end face of the stopper trim is placed under the water retaining rib of the sealing strip, obstructing the resulting visual gap. The present application optimizes the appearance problem caused by the matching gap without affecting the installation by structurally designing the water retaining assembly of the tailgate sealing strip. At the same time, the water retaining rib plays a role in blocking and guiding water during car washing in the rain, minimizing the contact between the sealing surface of the sealing strip and water, thereby better improving the sealing performance.

[0008] In some embodiments of the present application, the base member includes a bottom strip, and a first side strip and a second side strip connected to both sides of the bottom strip, and there is a gap between the end surface of the stop trim and the second side strip.

[0009] In some embodiments of the present application, the water retaining rib is formed by a bottom strip extending outward, and a side surface of the water retaining rib close to the stop trim is adapted to the structure of the stop trim.

[0010] Specifically, the end portion of the stop decorative plate is bent toward the side of the stop sheet metal, and the side surface of the water retaining rib close to the stop decorative plate is an inwardly concave curved surface.

[0011] The structural setting of the above-mentioned water retaining rib can, on the one hand, adapt well to the structure of the end of the stop decorative plate and block the gap there very well; on the other hand, it can effectively increase the structural strength of the connection between the water retaining rib and the base member, reduce the bending of the water retaining rib under stress, and improve the water retaining and water guiding function of the product.

[0012] In some embodiments of the present application, one end of the second side strip is connected to the bottom strip and the water retaining rib, and the other end of the second side strip extends outward and bends to form a presser foot, and the presser foot is in contact with the stop sheet metal.

[0013] In some embodiments of the present application, the cross section of the presser foot is an arc-shaped structure that bends back toward the first side strip, and the end of the presser foot is in contact with the stop sheet metal. The presser foot structure with the above structure can achieve better anti-bending and warping effects.

[0014] In some embodiments of the present application, the first side strip is provided with at least two first sealing lips on the side facing the stop sheet metal, and the second side strip is provided with at least two second sealing lips on the side facing the stop sheet metal, and the first sealing lips and the second sealing lips act on the stop sheet metal.

[0015] In some embodiments of the present application, the second sealing lip includes a root and a head, the root of the second sealing lip is connected to the second side strip, the head of the second sealing lip is in contact with the stop sheet metal, and the root of the second sealing lip is provided with a recess.

[0016] In the present application, by adding a recess at the root of the second sealing lip, the problem of excessive resistance to inserting the stopper sheet metal can be better alleviated.

[0017] In some embodiments of the present application, an arc-shaped pressure arm is provided on the outer side of the first side strip, and the cross section of the arc-shaped pressure arm is a semicircular arc structure.

[0018] In some embodiments of the present application, the outer side of the bottom strip is provided with a bubble tube, and the inner wall of the bubble tube is provided with depressions on both sides. In this application, the bubble tube has good elasticity, providing excellent shock absorption and buffering, achieving the requirement of easy door closing. The configuration of the bubble tube depression can better prevent the bubble cells from shifting after compression.

[0019] The above embodiments can be combined arbitrarily based on the common knowledge in this field. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the described objects and may contain exaggerated representations. The drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the structure of this application.

[0022] Among them, the specific descriptions of the accompanying drawings are as follows: 2. Stop sheet metal; 3. Stop decorative plate; 4. Base member; 41. Bottom strip; 42. First side strip; 43. Second side strip; 5. Water retaining rib; 6. Presser foot; 7. First sealing lip; 8. Second sealing lip; 9. Arc-shaped pressure arm; 10. Bubble tube. DETAILED DESCRIPTION

[0023] The present application will be described in detail below with reference to the accompanying drawings.

[0024] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0025] A back door sealing strip water retaining assembly, embodiment 1 is as follows Figure 1 As shown: It includes a sealing strip, a stopper sheet metal 2, and a stopper decorative plate 3. The sealing strip includes a base member 4 with a U-shaped cross-section. The first stopper sheet metal 2 is partially inserted into the base member 4 and clamped to the base member 4. The end of the stopper decorative plate 3 is close to one side of the base member 4. There is a gap between the end face of the stopper decorative plate 3 and the side face of the base member 4. One side of the base member 4 is provided with a water retaining rib 5 extending toward the side of the stopper decorative plate 3. The water retaining rib 5 blocks the gap between the end face of the stopper decorative plate 3 and the side face of the base member 4. The end face of the stopper decorative plate 3 is placed under the water retaining rib 5 of the sealing strip, blocking the resulting visual gap.

[0026] This application optimizes the appearance problem caused by the matching gap without affecting installation by designing the structural design of the tailgate sealing strip water retaining assembly. At the same time, the water retaining rib 5 plays a role in blocking and guiding water during rain washing, minimizing the contact between the sealing surface of the sealing strip and water, and better improving the sealing performance.

[0027] Example 2, as Figure 1 As shown, the base member 4 includes a bottom strip 41 , and a first side strip 42 and a second side strip 43 connected to both sides of the bottom strip 41 , and there is a gap between the end surface of the stop trim 3 and the second side strip 43 .

[0028] The water retaining rib 5 is formed by an outward extension of the bottom strip 41. The side of the water retaining rib near the stop trim 3 is adapted to the structure of the stop trim 3. Specifically, the end of the stop trim 3 is bent toward the stop sheet metal 2, and the side of the water retaining rib 5 near the stop trim 3 is an inwardly concave curved surface. The structural arrangement of the water retaining rib 5 can, on the one hand, adapt well to the structure of the end of the stop trim 3 and effectively block the gap there. On the other hand, it effectively increases the structural strength of the connection between the water retaining rib 5 and the base member 4, reduces the bending of the water retaining rib 5 under stress, and improves the water retaining and water guiding function of the product.

[0029] One end of the second side strip 43 is connected to the bottom strip 41 and the water retaining rib 5 , and the other end of the second side strip 43 extends outward and bends to form a presser foot 6 , and the presser foot 6 is in contact with and connected to the stop sheet metal 2 .

[0030] The cross section of the presser foot 6 is an arc-shaped structure that bends back toward the first side strip 42, and the end of the presser foot 6 is in contact with and connected to the stop sheet metal 2. The presser foot 6 structure with the above structure can achieve a better anti-bending and warping effect.

[0031] The first side strip 42 is provided with at least two first sealing lips 7 on the side facing the stop sheet metal 2, and the second side strip 43 is provided with at least two second sealing lips 8 on the side facing the stop sheet metal 2. The first sealing lips 7 and the second sealing lips 8 act on the stop sheet metal 2.

[0032] The second sealing lip 8 includes a root and a head. The root of the second sealing lip 8 is connected to the second side strip 43, and the head of the second sealing lip 8 is in contact with the stopper sheet metal 2. The root of the second sealing lip 8 is provided with a recess. In the present application, by adding a recess at the root of the second sealing lip 8, the problem of excessive resistance when inserting the stopper sheet metal 2 can be better alleviated.

[0033] An arc-shaped pressing arm 9 is provided on the outer side of the first side strip 42 , and the cross section of the arc-shaped pressing arm 9 is a semicircular arc structure.

[0034] The outer side of the bottom strip 41 is provided with a bubble tube 10, and the inner wall of the bubble tube 10 is provided with depressions on both sides. In this application, the bubble tube 10 has good elasticity, providing excellent shock absorption and buffering, achieving the requirement of easy door closing. The depression of the bubble tube 10 can better prevent the bubble cells from shifting after compression.

[0035] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0036] The present application has been described in detail above. Specific examples have been used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application and its core concepts. It should be noted that, without departing from the principles of the present application, a number of improvements and modifications may be made to the present application by a person skilled in the art, and such improvements and modifications shall fall within the scope of protection of the claims of the present application.

Claims

1. A back door sealing strip water retaining assembly, characterized in that: The invention comprises a sealing strip, a stopper sheet metal (2) and a stopper decorative plate (3), wherein the sealing strip comprises a base member (4) having a U-shaped cross section, the first stopper sheet metal (2) is partially inserted into the base member (4) and is clamped with the base member (4), the end of the stopper decorative plate (3) is close to a side surface of the base member (4), and a gap exists between the end surface of the stopper decorative plate (3) and a side surface of the base member (4), and a water retaining rib (5) extending toward one side of the stopper decorative plate (3) is provided on one side of the base member (4), and the water retaining rib (5) blocks the gap between the end surface of the stopper decorative plate (3) and a side surface of the base member (4).

2. The back door sealing strip water retaining assembly according to claim 1, characterized in that: The base member (4) comprises a bottom strip (41), and a first side strip (42) and a second side strip (43) connected to both sides of the bottom strip (41), and a gap exists between the end surface of the stop decorative plate (3) and the second side strip (43).

3. The back door sealing strip water retaining assembly according to claim 2, characterized in that: The water retaining rib (5) is formed by the bottom strip (41) extending outwards, and the side surface of the water retaining rib (5) close to the stop decorative plate (3) is adapted to the structure of the stop decorative plate (3).

4. The back door sealing strip water retaining assembly according to claim 1, characterized in that: The end of the stop decorative plate (3) is bent toward the side of the stop sheet metal (2), and the side surface of the water retaining rib (5) close to the stop decorative plate (3) is an inwardly concave curved surface.

5. The back door sealing strip water retaining assembly according to claim 2, characterized in that: One end of the second side strip (43) is connected to the bottom strip (41) and the water retaining rib (5), and the other end of the second side strip (43) extends outward and bends to form a presser foot (6), and the presser foot (6) is in contact with the stop sheet metal (2).

6. The back door sealing strip water retaining assembly according to claim 5, characterized in that: The cross section of the presser foot (6) is an arc-shaped segment structure that bends back toward the first side strip (42), and the end of the presser foot (6) is in contact with and connected to the stop sheet metal (2).

7. The back door sealing strip water retaining assembly according to claim 2, characterized in that: The first side strip (42) is provided with at least two first sealing lips (7) on the side facing the stop sheet metal (2), and the second side strip (43) is provided with at least two second sealing lips (8) on the side facing the stop sheet metal (2), and the first sealing lips (7) and the second sealing lips (8) act on the stop sheet metal (2).

8. The back door sealing strip water retaining assembly according to claim 7, characterized in that: The second sealing lip (8) includes a root and a head, the root of the second sealing lip (8) is connected to the second side strip (43), the head of the second sealing lip (8) is in contact with the stop sheet metal (2), and the root of the second sealing lip (8) is provided with a recess.

9. The back door sealing strip water retaining assembly according to claim 2, characterized in that: An arc-shaped pressing arm (9) is provided on the outer side of the first side strip (42), and the cross section of the arc-shaped pressing arm (9) is a semicircular arc structure.

10. The back door sealing strip water retaining assembly according to claim 2, characterized in that: The outer side surface of the bottom strip (41) is provided with a bubble tube (10), and depressions are provided on opposite sides of the inner wall surface of the bubble tube (10).

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