Car door connecting corner sealing strip

Abstract

The utility model discloses a car door connecting corner sealing strip, and belongs to the technical field of car door sealing strips, the car door connecting corner sealing strip comprises a first extrusion section, a second extrusion section and a connecting corner, the included angle between a first extrusion part and a second extrusion part is an obtuse angle, and a gap exists between the joint surface of the first extrusion part and the joint surface of the second extrusion part; the connecting corner is filled between the first extrusion part and the second extrusion part, the end faces of the two sides of the connecting corner are in butt joint with the joint face of the first extrusion part and the joint face of the second extrusion part respectively, and the joint face of the first extrusion part and the joint face of the second extrusion part are both of a non-planar structure. By optimizing the connecting structure and the connecting corner design, the sealing effectiveness and the installation stability of the connecting corner area are ensured.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle door sealing strips, and in particular to a vehicle door corner sealing strip. Background Art

[0002] The car door seal is an important sealing structure in the car door. It plays a role in waterproofing and dustproofing, noise reduction and sound insulation, and buffering the impact force when opening and closing the car door. At the same time, it also plays a very important role in the appearance quality of the car door. The seal at the car door is generally composed of a seal body and a joint. The joint is usually connected to the seal body by bonding, but this connection method has limited connection force and is easy to cause the joint and the seal body to separate.

[0003] Related prior arts such as the Chinese patent application “A door frame sealing strip structure”, application number: 202320113895.4; comprises a straight section of a sealing strip that is snap-fitted onto the upper door sheet metal, and a sealing strip corner is installed at the corner of the upper door sheet metal, and both ends of the sealing strip corner are connected to the straight section of the sealing strip and are integrally formed with the straight section of the sealing strip, and the sealing strip corner is provided with a snap-fit ​​flange that is snap-fitted onto the upper door sheet metal.

[0004] At present, some car models adopt a hard-core blunt angle design, which puts higher requirements on the cutting and corner processing of the door top strip. The structural design of the seal in the existing technology has some shortcomings, which cannot effectively solve the sealing problem of the corner area, and the stability of the sealing strip after installation on the car sheet metal is also lacking. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a vehicle door corner sealing strip, which ensures the sealing effectiveness and installation stability of the corner area by optimizing the connection structure and corner design.

[0006] The technical solution adopted in the present application is: a vehicle door corner sealing strip, comprising a first extrusion section, a second extrusion section and a joint angle, the angle between the first extrusion component and the second extrusion component is an obtuse angle, there is a gap between the connecting surface of the first extrusion component and the connecting surface of the second extrusion component, the joint angle fills the gap between the first extrusion component and the second extrusion component, the end faces on both sides of the joint angle are respectively connected to the connecting surface of the first extrusion component and the connecting surface of the second extrusion component, and the connecting surface of the first extrusion component and the connecting surface of the second extrusion component are both non-planar structures.

[0007] Compared with the prior art, the advantage of the present application is that the seal at the door angle is divided into three parts for molding, specifically including the first extrusion section, the second extrusion section and the angle connecting the two. Then the design of the structure can adapt to the connection of the first extrusion section and the second extrusion section of various structures, and meet the installation requirements of the obtuse angle design of the door. The first extrusion section and the second extrusion section do not need to be designed as a curved structure in the structural design, but adopt a simple straight strip structure, which reduces the processing difficulty of the first extrusion section and the second extrusion section of the seal. The connecting surface of the first extrusion part and the connecting surface of the second extrusion part designed in the present application are both non-planar structures. Then compared with the design of the plane connecting surface, the connecting surface area of ​​the corner of the present application for connecting with the first extrusion part and the second extrusion part is larger, and the reliability and stability of the connection of the corner, the first extrusion part and the second extrusion part can be ensured when the sealing strip is under stress. The stable connection structure effectively reduces the deformation and failure of the seal, improves the sealing performance and product reliability, and reduces the maintenance cost of the product.

[0008] In some embodiments of the present application, the cross-sectional shape of the first extrusion segment is the same as the cross-sectional shape of the second extrusion segment.

[0009] In some embodiments of the present application, the corner is molded, and the first extrusion section, the second extrusion section and the corner are connected as one. Specifically, the first extrusion section and the second extrusion section are formed by extrusion, and then put into the mold as accessories, and the corner is formed by closed mold pressure, and the corner is also connected to the first extrusion section and the second extrusion section as an integrated structure.

[0010] In some embodiments of the present application, the corner includes a mounting portion for connecting the sheet metal, the cross section of the mounting portion is a U-shaped structure, the sheet metal portion is embedded in the mounting portion, and an insert is embedded in the mounting portion. Specifically, the insert is made of plastic, and the plastic insert is placed in the corner area to clamp the sheet metal to ensure stable installation.

[0011] In some embodiments of the present application, the first extrusion component and the second extrusion component both include a clamping portion for clamping sheet metal, the cross-section of the clamping portion is a U-shaped structure, the clamping portion of the second extrusion component partially extends toward the corner to form an extension portion, the extension portion extends into the corner, and the insert is located at the position of the extension portion.

[0012] In some embodiments of the present application, a frame is installed in the first extrusion clamping part and the second extrusion clamping part, the cross section of the frame is a U-shaped structure, the frame is made of metal material, and the first extrusion and the second extrusion are made of rubber material. Specifically, the first extrusion and the second extrusion are made of EPDM or TPS. In the present application, a high-strength metal frame and a first extrusion and a second extrusion made of elastic rubber material are used to ensure the overall structural strength and sealing performance.

[0013] In some embodiments of the present application, the corner includes a reinforcing rib of a triangular sheet structure, and the two sides of the reinforcing rib are respectively connected to the inner wall surface of the first extrusion piece and the second extrusion piece. In the present application, the provision of a reinforcing rib structure can effectively prevent product deformation, enhance the structural strength of the product at the corner, and ensure the stability and reliability of the product.

[0014] In the present application, for the convenience of description, the side of the sealing strip close to the vehicle window is referred to as the inner side, and the side of the sealing strip away from the vehicle window is referred to as the outer side.

[0015] In some embodiments of the present application, the surface where the long side of the reinforcing rib is located constitutes the inner side of the sealing strip, and the surface where the long side of the reinforcing rib is located is an inwardly concave arc surface. In the present application, the inner side of the sealing strip is constituted by the inwardly concave arc surface, which has good structural strength and structural stability.

[0016] In some embodiments of the present application, the side edge where the long side of the reinforcing rib is located is bent toward the back side and toward the clamping portion to form a bent portion.

[0017] In some embodiments of the present application, the end faces of the first extrusion piece and the second extrusion piece that are close to each other are respectively recorded as the first connecting face and the second connecting face, and there is a gap between the first connecting face and the second connecting face, and the gap increases from the inside to the outside. Then, for the corner part, its structural strength increases from the inside to the outside, ensuring the installation stability of the corner area.

[0018] The above-mentioned implementation modes can be combined arbitrarily based on the common knowledge in the art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but 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 used as a limitation on the scope of the present application. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1This is a schematic diagram of the structure of this application;

[0021] Figure 2 for Figure 1 Sectional view of section AA;

[0022] Figure 3 It is a schematic structural diagram of the first connecting surface of the first extrusion section;

[0023] Figure 4 is a schematic structural diagram of the second connecting surface of the second extrusion section;

[0024] Figure 5 is a schematic diagram of the structure of the joint angle;

[0025] Figure 6 A schematic diagram of the structure of the insert.

[0026] Among them, the specific descriptions of the figure marks are as follows: 1. corner; 2. first extrusion section; 3. second extrusion section; 4. first connecting surface; 5. second connecting surface; 6. skeleton; 7. clamping part; 71. extension part; 9. installation part; 10. insert; 11. reinforcement rib; 11a, bending part. DETAILED DESCRIPTION

[0027] The present application is described in detail below in conjunction with the accompanying drawings.

[0028] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] A door corner sealing strip, embodiment 1 Figures 1 to 4As shown: including the first extrusion section 2, the second extrusion section 3 and the joint angle 1, the angle between the first extrusion and the second extrusion is an obtuse angle, so the design of the structure can adapt to the connection of the first extrusion section 2 and the second extrusion section 3 of various structures, and meet the installation requirements of the obtuse angle design of the car door. The first extrusion section 2 and the second extrusion section 3 do not need to be designed as a curved structure in the structural design, but can adopt a simple straight strip structure, which reduces the processing difficulty of the first extrusion section 2 and the second extrusion section 3 of the seal. There is a gap between the connecting surface of the first extrusion and the connecting surface of the second extrusion, and the corner 1 fills the gap between the first extrusion and the second extrusion. The two side end faces of the corner 1 are respectively connected to the connecting surface of the first extrusion and the connecting surface of the second extrusion, and the connecting surface of the first extrusion and the connecting surface of the second extrusion are non-planar structures. Compared with the design of the plane connecting surface, the corner 1 of the present application has a larger connecting surface area for connecting with the first extrusion and the second extrusion, and can also ensure the reliability and stability of the connection of the corner 1, the first extrusion and the second extrusion under the stress state of the sealing strip. The stable connection structure effectively reduces the deformation and failure of the seal, improves the sealing performance and product reliability, and reduces the maintenance cost of the product.

[0030] Embodiment 2, as Figures 1 to 6 As shown, the cross-sectional shape of the first extrusion segment 2 is the same as the cross-sectional shape of the second extrusion segment 3 .

[0031] The corner joint 1 is molded, and the first extrusion section 2, the second extrusion section 3 are connected to the corner joint 1. Specifically, the first extrusion section 2 and the second extrusion section 3 are formed by extrusion, and then put into the mold as accessories, and the corner joint 1 is formed by closed mold pressure, and the corner joint 1 is also connected to the first extrusion section 2, the second extrusion section 3 into an integrated structure.

[0032] The corner 1 includes a mounting portion 9 for connecting the sheet metal, the cross section of the mounting portion 9 is a U-shaped structure, the sheet metal portion is embedded in the mounting portion 9, and an insert 10 is embedded in the mounting portion 9. Specifically, the insert 10 is made of plastic, and the plastic insert 10 is placed in the corner 1 area to clamp the sheet metal to ensure stable installation.

[0033] The corner 1 includes a reinforcing rib 11 of a triangular sheet structure, and the two side surfaces of the reinforcing rib 11 are respectively connected to the inner wall surfaces of the first extrusion piece and the second extrusion piece. In the present application, the reinforcing rib 11 structure can effectively prevent product deformation, enhance the structural strength of the product at the corner 1, and ensure the stability and reliability of the product.

[0034] In the present application, for the convenience of description, the side of the sealing strip close to the vehicle window is referred to as the inner side, and the side of the sealing strip away from the vehicle window is referred to as the outer side.

[0035] The surface where the long side of the reinforcing rib 11 is located constitutes the inner side of the sealing strip, and the surface where the long side of the reinforcing rib 11 is located is an inwardly concave arc surface. In this application, the inner side of the sealing strip is formed by an inwardly concave arc surface, which has good structural strength and structural stability.

[0036] The side where the long side of the reinforcing rib 11 is located is bent toward the back and toward the clamping portion 7 to form a bent portion 11a, which effectively improves the structural strength of the corner 1, improves the overall stability of the sealing strip, and prevents the sealing strip from flanging.

[0037] The rest of the content of the second embodiment is the same as that of the first embodiment.

[0038] Embodiment three, as Figures 2 to 4 As shown, the first extrusion component and the second extrusion component both include a clamping portion 7 for clamping sheet metal, the cross-section of the clamping portion 7 is a U-shaped structure, the clamping portion 7 of the second extrusion component partially extends toward the corner 1 to form an extension portion 71, the extension portion 71 extends into the corner 1, and the insert 10 is located at the position of the extension portion 71.

[0039] The first extrusion clamping part 7 and the second extrusion clamping part 7 are both installed with a skeleton 6, the cross section of the skeleton 6 is a U-shaped structure, the skeleton 6 is made of metal material, and the first extrusion and the second extrusion are made of rubber material. Specifically, the first extrusion and the second extrusion are made of EPDM or TPS. In this application, a high-strength metal skeleton 6 and a first extrusion and a second extrusion made of elastic rubber material are used to ensure the overall structural strength and sealing performance.

[0040] The end faces of the first extrusion piece and the second extrusion piece that are close to each other are respectively recorded as the first connecting surface 4 and the second connecting surface 5. There is a gap between the first connecting surface 4 and the second connecting surface 5, and the gap increases from the inside to the outside. Then for the corner 1 part, its structural strength increases from the inside to the outside, ensuring the installation stability of the corner 1 area.

[0041] The other contents of the third embodiment are the same as those of the first embodiment or the second embodiment.

[0042] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A door corner sealing strip, characterized in that: The invention comprises a first extrusion section (2), a second extrusion section (3) and a joint angle (1); the angle between the first extrusion and the second extrusion is an obtuse angle; there is a gap between the connecting surface of the first extrusion and the connecting surface of the second extrusion; the joint angle (1) is filled between the first extrusion and the second extrusion; the end surfaces of both sides of the joint angle (1) are respectively connected to the connecting surface of the first extrusion and the connecting surface of the second extrusion; the connecting surface of the first extrusion and the connecting surface of the second extrusion are both non-planar structures.

2. A door corner sealing strip according to claim 1, characterized in that: The cross-sectional shape of the first extrusion section (2) is the same as the cross-sectional shape of the second extrusion section (3).

3. The door corner sealing strip according to claim 1, characterized in that: The connecting corner (1) is molded, and the first extrusion section (2), the second extrusion section (3) and the connecting corner (1) are connected as a whole.

4. The door corner sealing strip according to claim 1, characterized in that: The corner joint (1) comprises a mounting portion (9) for connecting a sheet metal, the mounting portion (9) having a U-shaped cross-section, the sheet metal portion being embedded in the mounting portion (9), and an insert (10) being embedded in the mounting portion (9).

5. A door corner sealing strip according to claim 4, characterized in that: The first extrusion component and the second extrusion component both include a clamping portion (7) for clamping a sheet metal, the cross section of the clamping portion (7) being a U-shaped structure, the clamping portion (7) of the second extrusion component partially extending toward the corner (1) to form an extension portion (71), the extension portion (71) extending into the location of the corner (1), and the insert (10) being located at the location of the extension portion (71).

6. The vehicle door corner sealing strip according to claim 1, characterized in that: A frame (6) is installed in each of the first extrusion piece clamping portion (7) and the second extrusion piece clamping portion (7); the cross section of the frame (6) is a U-shaped structure; the frame (6) is made of metal material; and the first extrusion piece and the second extrusion piece are made of rubber material.

7. The vehicle door corner sealing strip according to claim 1, characterized in that: The corner joint (1) comprises a reinforcing rib (11) of a triangular sheet structure, and two side surfaces of the reinforcing rib (11) are respectively connected to the inner wall surfaces of the first extruded component and the second extruded component.

8. The vehicle door corner sealing strip according to claim 7, characterized in that: The surface where the long side of the reinforcing rib (11) is located constitutes the inner side surface of the sealing strip, and the surface where the long side of the reinforcing rib (11) is located is an inwardly concave arc surface.

9. The vehicle door corner sealing strip according to claim 8, characterized in that: The side edge where the long side of the reinforcing rib (11) is located is bent toward the back side and toward the clamping portion (7) to form a bent portion (11a).

10. The vehicle door corner sealing strip according to claim 1, characterized in that: The end surfaces of the first extrusion piece and the second extrusion piece that are close to each other are respectively recorded as a first connecting surface (4) and a second connecting surface (5). There is a gap between the first connecting surface (4) and the second connecting surface (5), and the gap increases from the inside to the outside.

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