Automobile door panel decoration strip assembly
By using a two-way lead screw and telescopic plate structure on the car door panel, the problems of unstable fixing and inconvenient disassembly of existing trim strip components are solved, realizing the firm fixing and quick disassembly of trim strips, reducing maintenance costs and protecting the interior surface.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XIANGSHANG AUTO ACCESSORIES CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-01
AI Technical Summary
Existing automotive door panel trim assemblies suffer from problems such as adhesive bonding affecting surface integrity, easy damage to the snap-fit structure, high maintenance costs, insufficient compatibility, and inconvenience in disassembly and assembly.
It adopts a two-way screw and telescopic plate structure. The longitudinal and lateral telescopic plates are driven by a knob to fit tightly against the inner wall of the door panel, so as to achieve a firm fixation and quick disassembly of the decorative strip, avoiding damage caused by repeated disassembly and reassembly of the clips.
It achieves a secure fixation of the decorative strip, avoids damage to the clip structure, reduces maintenance costs, improves adaptability and ease of disassembly and assembly, and protects the integrity of the interior surface.
Smart Images

Figure CN224184221U_ABST
Abstract
Description
A car door panel trim strip assembly Technical Field
[0001] This application relates to the field of automotive door panel decoration technology, and more particularly to an automotive door panel decorative strip assembly. Background Technology
[0002] To enhance the aesthetics of car door panels, decorative strips are often installed on them. As an important component for improving both aesthetics and functionality, door panel decorative strips are usually fixed to the door panel body by means of clips, screws, or adhesive.
[0003] However, existing automotive door panel trim strip components have the following drawbacks: conventional trim strips are usually fixed by clips or adhesive. Adhesive methods have a curing time and tend to leave adhesive residue when removed, affecting the integrity of the door panel surface and resulting in high maintenance costs. Clip structures are prone to breakage due to repeated disassembly and reassembly, requiring replacement of the entire door panel assembly, which leads to insufficient compatibility. Some quick-release structures rely on pre-drilled holes in the door panel, requiring new molds for different models, increasing development costs. Elastic clips are inserted into the door panel, and removal requires prying tools, which can easily scratch the interior surface. Summary of the Invention
[0004] The purpose of this application is to improve the surface integrity of the door panel, save costs, avoid repeated disassembly and reassembly of the clips causing breakage of the clip feet, and avoid scratching the inner wall surface by using prying tools.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: A door panel is included, the exterior of which is provided with a decorative strip. An installation plate is fixedly connected to the outer wall of the decorative strip. The inner wall of the installation plate is located inside the door panel. A connecting groove is formed inside the installation plate. A movable groove is formed inside the decorative strip. A bidirectional lead screw is movably connected to the top of the inner wall of the movable groove. A knob is fixedly connected to the bottom of the bidirectional lead screw. A movable plate is threadedly connected to the outer wall of the bidirectional lead screw, and there are two movable plates. A longitudinal telescopic plate is fixedly connected to the outer wall of each of the two movable plates. A linkage groove is formed on the inner wall of the longitudinal telescopic plate, and there are multiple linkage grooves. A longitudinal telescopic groove is formed on the outer wall of the installation plate, and there are two longitudinal telescopic grooves. A transverse telescopic groove is formed on the outer wall of the installation plate, and there are two transverse telescopic grooves. A transverse telescopic plate is provided inside each of the two transverse telescopic grooves. A linkage column is fixedly connected to the outer wall of each of the two transverse telescopic plates, and there are multiple linkage columns. The linkage columns are located inside the linkage grooves.
[0006] As a preferred embodiment, the inner wall of the mounting plate has a fitting surface, the fitting surface is inclined, the connecting groove is connected to the moving groove, and the two longitudinal expansion grooves are respectively connected to the two transverse expansion grooves.
[0007] As another preferred embodiment, the knob is located inside the bottom surface of the decorative strip, and the end of the transverse telescopic plate connected to the linkage column is located inside the longitudinal telescopic plate.
[0008] In a further preferred embodiment, one end of each of the two longitudinal telescopic plates and the two transverse telescopic plates is a bevel, the inner wall edge of the door panel is a bevel, and the beveled ends of the two longitudinal telescopic plates and the two transverse telescopic plates are all in contact with the inner wall of the door panel.
[0009] Further preferably, the top of the decorative strip has a horizontal groove, and both sides of the decorative strip have vertical grooves.
[0010] Preferably, a decorative bright strip is fixedly connected to the outer wall of the decorative strip, and the decorative bright strip is located at the edge of the outer wall of the decorative strip.
[0011] Further preferably, a rubber strip is installed on the outer wall of the decorative strip, and the rubber strip is located on the surface of the decorative strip that contacts the door panel.
[0012] Compared with the prior art, the beneficial effects of this application are as follows:
[0013] (1) When installing the decorative strip and mounting plate, insert the mounting plate into the door panel. In the initial state, the two longitudinal telescopic plates and the two transverse telescopic plates are retracted into the corresponding longitudinal telescopic grooves and transverse telescopic grooves, respectively. At this time, the two longitudinal telescopic plates are close to each other. After the mounting plate is fully inserted into the door panel, turn the knob to drive the two-way screw to rotate synchronously, so that the two moving plates move in opposite directions, and then the two longitudinal telescopic plates move in opposite directions. The two longitudinal telescopic plates have linkage grooves inside. The linkage column connected to the outer wall of the two transverse telescopic plates is located inside the linkage groove, so that while the two longitudinal telescopic plates move outward, the two transverse telescopic plates extend outward synchronously. Finally, the two longitudinal telescopic plates and the two transverse telescopic plates are pressed tightly against the inner wall of the door panel. As the knob is turned, the two longitudinal telescopic plates and the two transverse telescopic plates will press tighter and tighter against the inner wall of the door panel, so that the decorative strip is firmly fixed to the door panel. When removing the decorative strip, simply turn the knob in the opposite direction. The decorative strip is easy and quick to install and remove, avoiding the situation where the clips crack due to repeated installation and removal when using a snap-on structure. Attached Figure Description
[0014] Figure 1 is a first-view schematic diagram of the overall structure of this automotive door panel trim strip assembly.
[0015] Figure 2 is a schematic diagram of the overall structure of the automotive door panel trim strip assembly from a second perspective.
[0016] Figure 3 is a schematic diagram of the internal structure of this type of automotive door panel trim strip assembly.
[0017] Figure 4 is an enlarged schematic diagram of structure A in Figure 3 of this type of automotive door panel trim strip assembly.
[0018] Figure 5 is a schematic diagram of the internal structure of the mounting plate of this type of automotive door panel trim strip assembly.
[0019] Figure 6 is a schematic diagram of the connecting groove and the moving groove of the automotive door panel trim strip assembly.
[0020] Figure 7 is a schematic diagram of the horizontal and vertical telescopic plates of the automotive door panel trim strip assembly.
[0021] Figure 8 is a schematic diagram of the bidirectional lead screw and moving plate of the automotive door panel trim strip assembly.
[0022] In the diagram: 1. Door panel; 2. Decorative strip; 3. Mounting plate; 4. Connecting groove; 5. Moving groove; 6. Two-way lead screw; 7. Knob; 8. Moving plate; 9. Longitudinal telescopic plate; 10. Linkage groove; 11. Longitudinal telescopic groove; 12. Lateral telescopic groove; 13. Lateral telescopic plate; 14. Linkage column; 15. Fitting surface; 16. Lateral groove; 17. Longitudinal groove; 18. Decorative bright strip; 19. Rubber strip. Detailed Implementation
[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0024] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.
[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0026] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0027] As shown in Figures 1-8, an automotive door panel trim assembly includes a door panel 1, a trim strip 2 on the outside of the door panel 1, a mounting plate 3 fixedly connected to the outer wall of the trim strip 2, the inner wall of the mounting plate 3 located inside the door panel 1, a connecting groove 4 inside the mounting plate 3, a moving groove 5 inside the trim strip 2, a bidirectional lead screw 6 movably connected to the top of the inner wall of the moving groove 5, a knob 7 fixedly connected to the bottom of the bidirectional lead screw 6, and two moving plates 8 threadedly connected to the outer wall of the bidirectional lead screw 6. Both moving plates 8 have longitudinal telescopic plates fixedly connected to their outer walls. 9. The inner wall of the longitudinal telescopic plate 9 is provided with linkage grooves 10, and there are multiple linkage grooves 10. The outer wall of the mounting plate 3 is provided with longitudinal telescopic grooves 11, and there are two longitudinal telescopic grooves 11. The outer wall of the mounting plate 3 is provided with transverse telescopic grooves 12, and there are two transverse telescopic grooves 12. Transverse telescopic plates 13 are provided inside the two transverse telescopic plates 12. Linkage columns 14 are fixedly connected to the outer walls of the two transverse telescopic plates 13, and there are multiple linkage columns 14. The linkage columns 14 are located inside the linkage grooves 10. When the decorative strip 2 and the mounting plate 3 are installed... Insert the mounting plate 3 into the door panel 1. Initially, the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 are retracted into their corresponding longitudinal telescopic grooves 11 and transverse telescopic grooves 12, respectively. At this time, the two longitudinal telescopic plates 9 are close together. After the mounting plate 3 is fully inserted into the door panel 1, turn the knob 7 to drive the bidirectional lead screw 6 to rotate synchronously, causing the two moving plates 8 to move in opposite directions, and thus causing the two longitudinal telescopic plates 9 to move in opposite directions. The interior of each of the two longitudinal telescopic plates 9 has a linkage groove 10. The linkage column 14 connected to the outer wall of the two transverse telescopic plates 13 is located inside the linkage groove 10. The knob 7 is rotated so that the two longitudinal telescopic plates 9 move outward while the two transverse telescopic plates 13 extend outward simultaneously. Finally, the inclined ends of the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 are tightly attached to the inner wall of the door panel 1. As the knob 7 is rotated, the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 will be increasingly tightly attached to the inner wall of the door panel 1, thereby firmly fixing the decorative strip 2 to the door panel 1. When removing the decorative strip 2, simply rotate the knob 7 in the opposite direction. The installation and removal of the decorative strip 2 is convenient and quick, avoiding the situation where repeated installation and removal can cause the clips to crack when using a snap-on structure.
[0028] The inner wall of the mounting plate 3 has a fitting surface 15, which is inclined. One end of the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 is inclined, and the inner edge of the door panel 1 is inclined. The inclined ends of the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 are all fitted with the inner wall of the door panel 1. When the knob 7 is rotated, the two transverse telescopic plates 13 and the two longitudinal telescopic plates 9 will press more and more tightly against the edge of the door panel 1. The connecting groove 4 is connected to the moving groove 5, and the two longitudinal telescopic grooves 11 are respectively connected to the two transverse telescopic grooves 12.
[0029] The knob 7 is located inside the bottom surface of the decorative strip 2, and the end of the horizontal telescopic plate 13 connected to the linkage column 14 is located inside the vertical telescopic plate 9.
[0030] The top of the decorative strip 2 has a horizontal groove 16, and both sides of the decorative strip 2 have vertical grooves 17, which makes it easy to pull the decorative strip 2 into the door panel 1.
[0031] A decorative bright strip 18 is fixedly connected to the outer wall of the decorative strip 2, and the decorative bright strip 18 is located at the edge of the outer wall of the decorative strip 2.
[0032] A rubber strip 19 is installed on the outer wall of the decorative strip 2, and the rubber strip 19 is located on the surface of the decorative strip 2 that is in contact with the door panel 1.
[0033] Working principle: During installation, the decorative strip 2 and mounting plate 3 are inserted into the door panel 1. Initially, the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 are retracted into their corresponding longitudinal telescopic grooves 11 and transverse telescopic grooves 12, respectively. At this time, the two longitudinal telescopic plates 9 are close together. After the mounting plate 3 is fully inserted into the door panel 1, the knob 7 is turned to drive the bidirectional lead screw 6 to rotate synchronously, causing the two moving plates 8 to move in opposite directions, which in turn causes the two longitudinal telescopic plates 9 to move in opposite directions. The interior of each of the two longitudinal telescopic plates 9 has a linkage groove 10, and the outer walls of the two transverse telescopic plates 13 are connected to linkage columns 14. Located inside the linkage groove 10, the two longitudinal telescopic plates 9 move outward while the two transverse telescopic plates 13 extend outward simultaneously. Finally, the inclined ends of the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 are tightly attached to the inner wall of the door panel 1. As the knob 7 is rotated, the two longitudinal telescopic plates 9 and the two transverse telescopic plates 13 will be increasingly tightly attached to the inner wall of the door panel 1, thereby firmly fixing the decorative strip 2 to the door panel 1. When removing the decorative strip 2, simply rotate the knob 7 in the opposite direction. The installation and removal of the decorative strip 2 is convenient and quick, avoiding the situation where repeated installation and removal can cause the clips to crack when using a snap-on structure.
[0034] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A car door panel trim strip assembly, comprising a door panel (1), characterized in that: The door panel (1) is provided with a decorative strip (2) on its exterior. A mounting plate (3) is fixedly connected to the outer wall of the decorative strip (2). The inner wall of the mounting plate (3) is located inside the door panel (1). A connecting groove (4) is provided inside the mounting plate (3). A moving groove (5) is provided inside the decorative strip (2). A two-way screw rod (6) is movably connected to the top of the inner wall of the moving groove (5). A knob (7) is fixedly connected to the bottom of the two-way screw rod (6). A moving plate (8) is threadedly connected to the outer wall of the two-way screw rod (6). There are two moving plates (8). A longitudinal telescopic plate (9) is fixedly connected to the outer wall of each of the two moving plates (8). The inner wall of the longitudinal telescopic plate (9) is provided with a linkage groove (10), and there are multiple linkage grooves (10). The outer wall of the mounting plate (3) is provided with a longitudinal telescopic groove (11), and there are two longitudinal telescopic grooves (11). The outer wall of the mounting plate (3) is provided with a transverse telescopic groove (12), and there are two transverse telescopic grooves (12). A transverse telescopic plate (13) is provided inside each of the two transverse telescopic grooves (12). A linkage column (14) is fixedly connected to the outer wall of each of the two transverse telescopic plates (13), and there are multiple linkage columns (14). The linkage column (14) is located inside the linkage groove (10).
2. The automotive door panel trim strip assembly as described in claim 1, characterized in that: The inner wall of the mounting plate (3) is provided with a fitting surface (15), the fitting surface (15) is inclined, the connecting groove (4) is connected to the moving groove (5), and the two longitudinal expansion grooves (11) are respectively connected to the two transverse expansion grooves (12).
3. The automotive door panel trim strip assembly as described in claim 1, characterized in that: The knob (7) is located inside the bottom surface of the decorative strip (2), and the end of the horizontal telescopic plate (13) connected to the linkage column (14) is located inside the vertical telescopic plate (9).
4. The automotive door panel trim strip assembly as described in claim 1, characterized in that: One end of each of the two longitudinal telescopic plates (9) and the two transverse telescopic plates (13) is a slope, and the inner wall edge of the door panel (1) is a slope. The sloped ends of the two longitudinal telescopic plates (9) and the two transverse telescopic plates (13) are all in contact with the inner wall of the door panel (1).
5. The automotive door panel trim strip assembly as described in claim 1, characterized in that: The decorative strip (2) has a horizontal groove (16) at the top and a vertical groove (17) on both sides.
6. The automotive door panel trim strip assembly as described in claim 1, characterized in that: A decorative bright strip (18) is fixedly connected to the outer wall of the decorative strip (2), and the decorative bright strip (18) is located at the edge of the outer wall of the decorative strip (2).
7. The automotive door panel trim strip assembly as described in claim 1, characterized in that: A rubber strip (19) is installed on the outer wall of the decorative strip (2), and the rubber strip (19) is located on the surface of the decorative strip (2) and the door panel (1).