Front edge sealing assembly of sliding plug door

Abstract

The utility model discloses a front edge sealing assembly of a sliding plug door, which comprises a finger protection rubber strip connected with the front edge of a door plate and a vehicle body rubber strip connected with a door plate pressing strip, the outer end of the front side of the finger protection rubber strip extends out to form a flash, the finger protection rubber strip is in butt joint with the vehicle body rubber strip, and the flash covers the outside of the vehicle body rubber strip. The sealing flash outside the finger protection rubber strip covers the vehicle body rubber strip, the outer sealing compression allowance is large, and the finger protection rubber strip can adapt to the vehicle body profile tolerance error.

Description

Technical Field

[0001] The utility model relates to a vehicle door seal, in particular to a front sealing component of a plug-type sliding door. Background Art

[0002] The sealing strips at the front edge of passenger car sliding doors generally adopt an internal sealing structure, which realizes the sealing of the door leaf by extrusion deformation of the flash between the finger guard strip and the body strip. For example, the utility model patent with publication number CN213831679U discloses a strip sealing structure for an electric double-opening sliding door.

[0003] Due to the limited movement of the sliding door, the internal sealing structure's flash compression is designed to be minimal. When the body contour error exceeds the compression of the rubber strip, the sealing performance is poor, and water leaks may occur when the door is closed. The outer surface of the internal sealing rubber strip assembly is flush with the body to enhance the door's aesthetics. However, the contour error of the bus body is difficult to control. During actual installation, the internal sealing rubber strip assembly will be misaligned, creating gaps and height differences, affecting the overall vehicle's aesthetics. When the door is closed, the rubber strip assembly has weak restraint, resulting in significant door movement during operation, insufficient locking rigidity, and poor stability.

[0004] Conventional Sierra door rubber strips are usually installed in an interlaced manner. During the installation process, as the contact area between the rubber strip and the installation groove increases, the installation resistance increases, making the installation inconvenient and time-consuming. Utility Model Content

[0005] Purpose of the utility model: The purpose of the utility model is to provide a plug door front sealing assembly that improves the flash compression margin.

[0006] Technical solution: The front sealing assembly of a Sierra door described in the utility model includes a finger guard strip connected to the front edge of the door panel and a body strip connected to the door panel molding. The front outer end of the finger guard strip extends out to form a flash, and the finger guard strip and the body strip are connected to each other, and the flash covers the outside of the body strip.

[0007] Preferably, in order to achieve multiple sealing and effective waterproofing, the finger guard strip is provided with a first protrusion on the front side, an inclined first limiting surface is provided on the outside of the first protrusion, and a second protrusion that can be inserted between the burr and the first limiting surface is provided on the front side of the body strip, and a second limiting surface parallel to the first limiting surface is provided on the inside of the second protrusion.

[0008] Preferably, in order to improve the restraining force of the door panel, the angle between the first limiting surface and the finger guard strip is 45°.

[0009] Preferably, the outer side of the second limiting surface is connected to the outer surface of the vehicle body rubber strip through an inclined surface, and when the finger guard rubber strip and the vehicle body rubber strip are butted against each other, the front end of the flash moves along the inclined surface.

[0010] Preferably, in order to achieve multiple sealing and effective waterproofing, the inner side of the first protrusion is connected to the inner surface of the finger guard strip through a concave bending surface, and the inner end of the body strip is provided with a forward-extending support strip, the finger guard strip and the body strip are connected, and the front end of the support strip is in contact with the bending surface of the first protrusion.

[0011] Preferably, an inner burr with a hook is provided on the outer side of the support strip, the finger guard strip is butted against the vehicle body strip, and the inner burr abuts against the bending surface of the first protrusion.

[0012] Preferably, in order to reduce the resistance to the installation of the strips and increase stability, the rear side of the finger guard strips and the body strips are both provided with T-shaped mounting ends, a waist hole is opened inside the mounting end, an inner concave surface is provided in the middle of the end face, and the two sides of the mounting end are hooked back to form an inclined surface.

[0013] Preferably, in order to match the contour of the vehicle body, the inner and outer ends of the rear sides of the finger guard strip and the vehicle body strip are respectively provided with inner and outer edges.

[0014] Preferably, the outer edge length of the finger guard rubber strip is greater than the inner edge length, and the outer edge length of the body rubber strip is less than the inner edge length.

[0015] Beneficial Effects: Compared with the existing technology, the present invention has the following significant advantages: 1. When the car door is fully closed, the outer sealing edge of the finger guard rubber strip covers the body rubber strip, and the outer sealing compression margin is large, which can adapt to the deviation of the car body contour and improve the aesthetics; 2. The rubber strip assembly has a three-layer sealing structure, which can effectively prevent rainwater from entering the car; 3. The limiting inclined surfaces of the finger guard rubber strip and the door frame rubber strip cooperate with the outer sealing structure to achieve two-way constraint of the car door, improving the locking rigidity of the car door. The large-angle limiting surface can compensate for debugging errors and ensure the fit of the rubber strip limiting surface; 4. The rubber strip assembly adopts a press-in installation method, which is simple to install and has high assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of the front sealing assembly structure of the sliding plug door of the present invention;

[0017] Figure 2 This is a top view of the finger guard strip structure of the present utility model;

[0018] Figure 3 This is a top view of the vehicle body rubber strip structure of the present utility model. DETAILED DESCRIPTION

[0019] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0020] The utility model relates to a front sealing component of a plug sliding door, such as Figure 1It is mainly composed of a finger guard strip 1 and a body strip 2. The body strip 2 is used to connect with the front edge of the door panel 4, and the body strip 2 is used to connect with the door panel molding 3.

[0021] The front outer end of the finger guard strip 1 extends forward to form an arc-shaped burr 101. When the door panel 4 is closed, it covers the outside of the vehicle body strip 2 to form a first seal.

[0022] like Figure 2 The front side of the finger guard rubber strip 1 is provided with a first protrusion. The outer side of the first protrusion, near the fin 101, is an inclined first limiting surface 106. A V-shaped groove is formed between the fin 101 and the first limiting surface 106. When the door panel 4 is closed, the first limiting surface 106 and the fin 101 clamp the two sides of the body rubber strip 2, forming a seal. The inner side of the first protrusion, away from the fin 101, is a concave curved surface. The curved surface has a surface 103 parallel to the finger guard rubber strip 1, and a surface 102 connecting the surface 103 and the inclined surface 106. The surface 103 is used to abut the body rubber strip 2 to form a limit.

[0023] like Figure 3 The front side of the body rubber strip 2 is equipped with a second protrusion that can be inserted between the fin 101 of the finger guard rubber strip 1 and the first stop surface 106. The inner side of the second protrusion has a second stop surface 206 that mates with the first stop surface 106, and the outer side is connected to the outer surface 201 of the body rubber strip 2 via an inclined surface. When the finger guard rubber strip 1 and the body rubber strip 2 are connected, the front side of the fin 101 moves along the inclined surface, causing the fin 101 to elastically deform until it covers the outside of the body rubber strip 2, forming a primary seal.

[0024] Usually, the sliding trajectory of the car door is 35° to 40° with the outer surface of the car body. The first limiting surface 106 and the finger guard strip 1, and the second limiting surface 206 and the body strip 2 have the same angle α, α being 45°. This can ensure that within the error range of the car door installation and debugging, after the car door is closed, the first limiting surface 106 of the finger guard strip 1 fits with the second limiting surface 206 of the body strip 2 to form a second seal.

[0025] A forward-extending support strip 203 is provided at the inner end of the front side of the body rubber strip 2, and a hooked inner burr 202 is provided on the side of the support strip 203 close to the second limiting surface 206. A V-shaped groove is formed between the second limiting surface 206 and the support strip 203. When the finger guard rubber strip 1 is connected to the body rubber strip 2, the first protrusion is located between the second limiting surface 206 and the support strip 203, the support strip 203 abuts against the surface 103, and the inner burr 202 produces elastic deformation and abuts against the surface 102 of the bent surface to form a third seal.

[0026] The rear side of the finger guard strip 1 features a T-shaped mounting end 107 with a waist hole 109 defined within it and a concave surface 108 defined in the middle of the end. Both ends of the mounting end 107 are angled toward the rear of the finger guard strip 1. When the mounting end 107 is attached to the front edge of the door panel 4, the concave surface 108 and waist hole 109 are susceptible to deformation. The angled end reduces the resistance of the mounting end 107 being pressed into the groove 402 of the front edge 401 of the door panel 4. After installation, the concave surface 108 and waist hole 109 return to their original shape, and the mounting end 107 hooks onto the rounded corner of the groove 403 to form a connection. The inner and outer ends of the finger guard strip 1 are respectively provided with an inner edging 104 and an outer edging 105 that overlap the inner and outer panels 402 and 401 of the door panel 4. The inner edge 104 is shorter than the outer edge 105. The outer edge 105 mates with the outer surface 401 of the door panel's leading edge, while the inner edge 104 mates with the inner surface 402 of the front bumper profile, allowing for elastic deformation and maintaining the finger guard's installation stability. The body strip 2 has a similar structure to the finger guard 1. Its rear side features a mounting end 207 identical in structure to the mounting end 107, also with an inner concave surface 208 and a central waist hole 209. The inner and outer edges 204 and 205, respectively, overlap the inner and outer panels 301 and 302 of the body molding 3. The inner edge 204 is longer than the outer edge 205. The outer edge 205 of the body strip 2 can elastically deform and mate with the outer surface 301 of the molding 3, facilitating the installation stability of the body strip. The inner edge 204 serves to shield the inner surface of the molding 3, enhancing its aesthetics.

[0027] like Figure 1 The first limiting surface 106 of the finger guard strip 1 and the second limiting surface 206 of the body strip are in contact with each other. When the door panel tends to move outward, the two limiting surfaces can constrain the door panel. Correspondingly, the external burr 101 of the finger guard strip 1 and the rear 201 of the bent surface of the body strip 2 limit the deformation of the door panel inward. The two-way constraint improves the locking rigidity of the door panel.

Claims

1. A plug door front edge sealing assembly, comprising a finger guard rubber strip (1) connected to the front edge of the door panel, and a body rubber strip (2) connected to the door panel molding, characterized in that: The front outer end of the finger guard strip (1) extends out to form a fin (101), the finger guard strip (1) and the vehicle body strip (2) are butted against each other, and the fin (101) covers the outside of the vehicle body strip (2).

2. The plug door front sealing assembly according to claim 1, characterized in that: The finger guard rubber strip (1) is provided with a first protruding portion on the front side, and an inclined first limiting surface (106) is provided on the outer side of the first protruding portion. The vehicle body rubber strip (2) is provided with a second protruding portion on the front side that can be inserted between the burr (101) and the first limiting surface (106), and a second limiting surface (206) parallel to the first limiting surface (106) is provided on the inner side of the second protruding portion.

3. The plug door front sealing assembly according to claim 2, characterized in that: The included angle between the first limiting surface (106) and the finger-protecting rubber strip (1) is 45°.

4. The plug door front sealing assembly according to claim 2, characterized in that: The outer side of the second limiting surface (206) is connected to the outer surface (201) of the vehicle body rubber strip via an inclined surface, and when the finger guard rubber strip (1) and the vehicle body rubber strip (2) are butted together, the front end of the flash edge (101) moves along the inclined surface.

5. The plug door front sealing assembly according to claim 2, characterized in that: The inner side of the first protrusion is connected to the inner surface of the finger guard strip (1) through a concave bending surface, and the inner end of the vehicle body strip (2) is provided with a forward-extending support strip (203), the finger guard strip (1) and the vehicle body strip (2) are butted, and the front end of the support strip (203) abuts against the bending surface of the first protrusion.

6. The plug door front sealing assembly according to claim 5, characterized in that: The outer side of the support strip (203) is provided with an inner fin (202) with a hook, the finger guard rubber strip (1) and the vehicle body rubber strip (2) are butted together, and the inner fin (202) abuts against the bending surface of the first protrusion.

7. The sliding plug door front sealing assembly according to any one of claims 1 to 6, characterized in that: The rear side of the finger guard rubber strip (1) and the vehicle body rubber strip (2) are both provided with a T-shaped mounting end, a waist hole is provided inside the mounting end, an inner concave surface is provided in the middle of the end face, and both sides of the mounting end are hooked back to form an inclined surface.

8. The sliding plug door front sealing assembly according to any one of claims 1 to 6, characterized in that: The inner and outer ends of the rear sides of the finger protection rubber strip (1) and the vehicle body rubber strip (2) are respectively provided with an inner edging and an outer edging.

9. The plug door front sealing assembly according to claim 8, characterized in that: The outer edge length of the finger protection rubber strip (1) is greater than the inner edge length, and the outer edge length of the vehicle body rubber strip (2) is less than the inner edge length.

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