Novel vehicle door sealing strip

By introducing a rod and a limiting protrusion into the door groove, the problem of movement during glass raising and lowering in traditional door grooves is solved, achieving more stable glass raising and lowering and sealing effects, and simplifying the installation process.

CN224075389UActive Publication Date: 2026-04-03CHONGQING CHANGAN KUAYUE AUTOMOBILE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional car door grooves exhibit positive Z-axis movement during window operation, affecting sealing and the stability of window operation.

Method used

A novel door groove design was developed, which uses a rod to engage with the door slide groove and uses limiting protrusions and external support blocks for multi-directional limiting to ensure the stable fixation of the door groove in the Z, X, and Y directions.

Benefits of technology

It effectively prevents the door groove from shifting, improves the stability and sealing performance of the window lifting mechanism, simplifies the installation process, and enhances the fixing effect between the door groove and the door slide.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224075389U_ABST
    Figure CN224075389U_ABST
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Abstract

The utility model relates to the field of vehicle doors, and particularly discloses a novel vehicle door trough. Comprising a main body, a baffle is fixed in the main body, a mounting space is formed between the baffle and the bottom side wall of the main body, a buckle is arranged in the mounting space and comprises a rod part, and the rod part penetrates through the bottom side wall of the main body and extends below the main body. According to the novel car door sealing strip, the problem that the car door sealing strip moves in the positive Z direction is solved.
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Description

Technical Field

[0001] This utility model relates to the field of car doors, specifically to a novel car door groove. Background Technology

[0002] The door groove is a key component in car doors used for sealing and cushioning. It is installed in the door slide rail to guide the door glass to move within the door frame, prevents wind and rain from penetrating through the sealing structure, and cushions the impact force generated when the glass is raised or lowered.

[0003] Traditional door welt installation requires machining a U-shaped door groove on the door, then snapping the welt into the groove. As shown in the automotive door welt positioning structure disclosed in patent number CN206568863U, a positioning structure is provided. The positioning component of the automotive door welt positioning structure has a protruding limiting part, and the door sheet metal has a limiting hole. The protruding limiting part is designed to be inserted into the limiting hole, and the side portion of the limiting component is designed to abut against the side of the welt body. The end of the door welt is limited along its length by abutting against the limiting component.

[0004] However, in practical applications, it has been found that because the door groove is inserted into the door slide rail, the bottom of the door groove can abut against the bottom of the door slide rail, thus ensuring reliable limiting in the negative Z direction. However, there is still some movement in the positive Z direction when the glass is raised or lowered, which is not conducive to the raising or lowering of the glass. Utility Model Content

[0005] The present invention aims to provide a new type of door groove to solve the problem of positive Z-axis movement in the door groove.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel door groove, comprising a main body, a baffle fixed inside the main body, an installation space formed between the baffle and the bottom side wall of the main body, a buckle provided in the installation space, the buckle including a rod, the rod penetrating the bottom side wall of the main body and extending to the bottom of the main body.

[0007] The beneficial effects of this plan are:

[0008] 1. In this solution, the rod part of the door groove is engaged with the door sliding groove during installation, which can limit the door groove in the Z direction, thereby preventing the door groove from moving in the Z direction.

[0009] 2. After the rod engages with the door sliding track, it can also position the door sliding track along its length, ensuring that the door sliding track and the door sliding track do not slide along the length. When installing the positioning structure at both ends of the door sliding track, it is not necessary to adjust the position of the door sliding track along the length, making installation more convenient.

[0010] 3. In this solution, the clips are located within the installation space, and the baffle acts as a shield for the clips, thereby ensuring that the inner wall of the door groove is smooth and that the glass can fit tightly against the bottom of the door groove, ensuring good sealing performance.

[0011] Furthermore, a limiting protrusion is fixed axially on the rod, and the diameter of the upper end of the limiting protrusion is larger than the diameter of the rod, forming a step between the upper end of the limiting protrusion and the rod.

[0012] The beneficial effects of this solution are as follows: when the rod engages with the door slide, the limiting protrusion penetrates the bottom of the door slide, and at this time the step abuts against the bottom of the door slide, resulting in a better positioning effect for the door slide.

[0013] Furthermore, the limiting protrusion is a frustum-shaped cone with an upper diameter larger than a lower diameter.

[0014] The beneficial effects of this solution are: the steps formed in this solution are circular, the contact surface with the door slide is larger and the contact position is more evenly distributed along the circumference, resulting in a better limiting effect.

[0015] Furthermore, at least two limiting protrusions are provided on the rod.

[0016] The beneficial effects of this solution are as follows: when the rod engages with the door slide, the bottom sidewall of the door slide is located between two adjacent limiting protrusions. At this time, the step of the lower limiting protrusion abuts against the bottom of the door slide, and the upper limiting block can engage with the groove mounting hole provided on the door slide, thereby reducing the gap between the rod and the groove mounting hole, further preventing radial movement between the rod and the door slide, and thus improving the limiting effect on the X and Y directions of the door groove.

[0017] Furthermore, the diameter of the lower end of the rod is smaller than the diameter of the lower end of the limiting protrusion.

[0018] The beneficial effect of this solution is that when the buckle is engaged with the door sliding groove, the lower end of the rod has a smaller diameter, which guides the rod's engagement and makes installation easier.

[0019] Furthermore, the cross-section of the buckle along the main body is T-shaped.

[0020] The beneficial effects of this solution are: after the buckle engages with the door sliding groove, the end with the larger diameter of the buckle can abut against the main body without detaching from it. Therefore, the buckle in this solution does not need to be fixed to the main body, but only needs to allow the rod to pass through the main body, which simplifies the processing.

[0021] Furthermore, an external support block is fixed to the outer wall of the main body.

[0022] The beneficial effects of this solution are: after the main body is installed with the door sliding track, the outer support block abuts against the side wall of the door sliding track, limiting the main body in the width direction and preventing the main body from swaying left and right relative to the door sliding track.

[0023] Furthermore, the outer support blocks are distributed in a V-shape with the main body sidewall.

[0024] The beneficial effects of this solution are: the external support block in this solution can increase the pressure between itself and the side wall of the door slide, thereby improving the fixing effect.

[0025] Furthermore, a U-shaped groove is provided on the top of the main body, with the opening of the U-shaped groove facing away from the side wall of the main body.

[0026] The beneficial effect of this solution is that by setting the top of the door slide rail in an inverted L shape, the top of the door slide rail can be inserted into the U-shaped groove, thereby further limiting the main body from the Z-axis direction. Attached Figure Description

[0027] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 A 3D view of the central buckle;

[0029] Figure 3 This is a schematic diagram of the door groove after installation in an embodiment of this utility model. Detailed Implementation

[0030] The following detailed description illustrates the specific implementation method:

[0031] The reference numerals in the accompanying drawings include: main body 1, U-shaped groove 11, outer support block 12, installation space 13, baffle 2, buckle 3, rod 31, limiting protrusion 32, step 33, door slide 4, and groove mounting hole 41.

[0032] Example

[0033] The implementation examples are basically as follows Figure 1 , Figure 2 and Figure 3 As shown, a novel door sliding groove includes a main body 1 and four clips 3, which are distributed along the length of the main body 1. The main body 1 has a U-shaped vertical cross-section with the opening facing upwards. The left and right side walls of the main body 1 are integrally formed with outer support blocks 12, which extend in the opposite direction along the length of the main body 1. The end of the outer support block 12 away from the main body 1 is inclined upwards, so that the outer support block 12 and the vertical side wall of the main body 1 are distributed in a V-shape. In actual implementation, the length of the outer support block 12 is determined according to the gap between the outer wall of the main body 1 and the inner wall of the door sliding groove 4, ensuring that after the main body 1 is installed into the door sliding groove 4, the outer support block 12 abuts against the door sliding groove 4.

[0034] The top of the left and right side walls of the main body 1 is provided with UU-shaped grooves 11. The opening of the UU-shaped grooves 11 faces the side wall of the door slide 4. In actual implementation, the top of the door slide 4 is bent into an inverted L shape and slides in cooperation with the UU-shaped grooves 11 to initially limit the main body 1.

[0035] A baffle 2 is provided along the length of the main body 1. The baffle 2 is parallel to the bottom of the main body 1, and an installation space 13 is formed between the baffle 2 and the bottom of the main body 1. The buckle 3 is made of nylon. The vertical cross-section of the buckle 3 is T-shaped. The upper end of the buckle 3 is located in the installation space 13, and the lower part of the buckle 3 is a rod 31, which penetrates the bottom of the main body 1 vertically. Three limiting protrusions 32 are fixed axially on the rod 31. The limiting protrusions 32 are all frustum-shaped with a lower diameter larger than the upper diameter, so that a step 33 is formed between the top of the limiting protrusion 32 and the rod 31. Specifically, the height and upper diameter of the limiting protrusion 32 are determined according to the thickness of the bottom sidewall of the door slide 4, so that when the top of the next limiting protrusion 32 abuts against the bottom of the door slide 4, the circumferential sidewall of the previous limiting protrusion 32 abuts against the wall of the groove mounting hole 41 provided on the bottom sidewall of the door slide 4. The part of the rod 31 located below all the limiting protrusions 32 is also a frustum-shaped structure with a lower diameter smaller than the upper diameter.

[0036] The specific implementation process is as follows:

[0037] Before installing the door groove in this solution, groove mounting holes 41 corresponding to the buckles 3 need to be set on the door slide 4. When installing the door groove, the buckles 3 can be engaged with the groove mounting holes 41 on the door slide 4 to position the door groove in the Z-axis direction. The operation is simple.

[0038] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A new type of door welting channel comprising a body, characterised in that: The body is fixed with a baffle, a mounting space is formed between the baffle and the bottom side wall of the body, a buckle is arranged in the mounting space, the buckle comprises a rod portion, the rod portion penetrates through the bottom side wall of the body and extends below the body.

2. A novel door trim slot as claimed in claim 1, wherein: A limiting protrusion is fixed on the rod portion in the axial direction, the diameter of the upper end of the limiting protrusion is greater than the diameter of the rod portion, and a step is formed between the upper end of the limiting protrusion and the rod portion.

3. A novel door trim slot as claimed in claim 2, wherein: The limiting protrusion is in the shape of a truncated cone with the diameter of the upper end being greater than the diameter of the lower end.

4. A novel door trim slot as claimed in claim 2, wherein: The limiting protrusion on the rod portion is provided with at least two.

5. A novel door trim slot as claimed in claim 2, 3 or 4, wherein: The diameter of the lower end of the rod portion is smaller than the diameter of the lower end of the limiting protrusion.

6. A new type of door trim slot according to claim 1, characterized in that: The cross section of the buckle in the cross section direction of the body is T-shaped.

7. A new type of door trim slot according to claim 1, characterized in that: An outer support block is fixed to the outer side wall of the body.

8. A novel door trim slot as claimed in claim 7, wherein: The outer support block and the side wall of the body are distributed in a V shape.

9. A novel door trim slot as claimed in claim 8, wherein: A U-shaped groove is arranged on the top of the body, and the opening of the U-shaped groove faces away from the side wall of the body.

Citation Information

Patent Citations

  • Car door groove location structure

    CN206568863U