Track structure of sliding plug door
By employing a dual guide track structure in the sliding door, and utilizing a combination of magnets and guide wheels, the problem of instability in the sliding door's guide structure was solved, achieving higher movement accuracy and stability.
Patent Information
- Application Number
- CN202520438429.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The existing sliding door's guide structure lacks features that can further improve stability, causing the door panel to wobble laterally during opening and closing, affecting its stability during use.
It adopts a dual-guide track structure, including a guide rail, a guide wheel support structure and a magnet combination. The interaction of the magnets reduces lateral swaying, and the combination of support guide wheels and side guide wheels reduces frictional resistance.
It improves the stability and precision of the sliding door panel's movement on the guide rail, reduces lateral swaying and frictional resistance, and enhances the quality of opening and closing.
Smart Images

Figure CN223867850U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sliding door technology, specifically to a sliding door track structure. Background Technology
[0002] Sliding doors are widely used in transportation vehicles such as high-speed trains, subways, light rail, buses, driverless vehicles, and airport shuttle buses. They have advantages such as reducing air resistance, providing airtight sound insulation, and improving passenger comfort.
[0003] The existing single-support guide track structure based on guide rails and guide wheels lacks a guide structure that can further improve stability. In the door panel guide support, lateral swaying is prone to occur, resulting in insufficient stability when opening and closing the sliding door. Therefore, a new track structure for sliding doors is proposed. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides a sliding door track structure that provides a dual-guide track structure for the movement of the sliding door panel, making the sliding door panel more stable and the movement guidance more accurate during movement.
[0005] The technical solution adopted by this utility model to solve its technical problem is a sliding door track structure, including a guide rail and a guide wheel support structure set on the guide rail. The guide rail has a guide cavity for the guide wheel support structure to move. The guide wheel support structure is located in the guide cavity. A first magnet is set in the guide cavity, and at least one set of the first magnet is set and is embedded at equal distances along the bottom of both sides of the inner wall of the guide cavity. The top and bottom of the first magnet are fixed to the inner wall of the guide cavity by bolts.
[0006] By adopting the above technical solution, a dual-guide track structure is provided for the movement of the sliding door panel through the components composed of guide rails and guide wheels, which makes the sliding door panel more stable and the movement guidance more accurate during the movement process.
[0007] Specifically, the guide wheel support structure includes a support main board, and the bottom of the support main board extends through the center of the guide cavity and connects to a mounting plate with mounting holes.
[0008] By adopting the above technical solution, the installation plate facilitates the installation of the sliding door panel below the installation plate, enabling the guide wheel support structure and guide rail to provide guidance for the moving door panel.
[0009] Specifically, the bottom of both ends of the support motherboard is provided with side ears, and a support guide wheel is rotatably mounted on the inner side of the side ears through a bearing, with the bottom of the support guide wheel contacting the bottom of the guide cavity.
[0010] By adopting the above technical solution and by setting up the support guide wheels, rolling support is provided for the door panel installed below the mounting plate.
[0011] Specifically, a second magnet is embedded on the side of the side ear away from the supporting guide wheel. The two ends of the second magnet are fixed to the side ear by bolts, and the magnetic poles of the second magnet and the first magnet are arranged facing each other.
[0012] By adopting the above technical solution, the first and second magnets with their magnetic poles facing each other can reduce the lateral swaying of the guide wheel during its movement in the guide rail through the interaction of the magnets, thereby further improving the stability and accuracy of the sliding door panel during the guiding process based on the guide rail and guide wheel support structure.
[0013] Specifically, the support main board is provided with two sets of side guide wheels, and support columns are respectively connected to the top two ends of the support main board. The top of the support column is rotatably connected to the side guide wheel at the corresponding position through a bearing. The outer sides of the two sets of side guide wheels are in contact with the two sides of the inner wall of the guide cavity.
[0014] By adopting the above technical solution and setting the side guide wheels, the lateral frictional resistance during the movement of the main board is reduced.
[0015] The beneficial effects of this utility model are as follows: The assembly consisting of a guide rail and a guide wheel support structure provides a dual-guide track structure for the movement of the sliding door panel, resulting in better stability and higher precision during movement. The wheel-type guide structure, composed of support guide wheels and side guide wheels, reduces frictional resistance as the sliding door panel moves beneath the guide rail. The use of a first and second magnet with opposing magnetic poles reduces lateral swaying of the guide wheels during movement, further improving the stability and precision of the sliding door panel's guidance based on the guide rail and guide wheel support structure. This reduces lateral swaying during movement, improves the quality of opening and closing the sliding door, and solves the problem of existing single-support guide track structures based on guide rails and guide wheels lacking a guide structure to further improve stability, leading to lateral swaying during door panel guidance and insufficient stability during opening and closing. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0017] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0018] Figure 2 This is a schematic diagram of the guide wheel support structure of this utility model;
[0019] Figure 3 For the present utility model Figure 1Enlarged view of point A in the middle;
[0020] In the figure: guide rail 1, guide cavity 11, first magnet 12, guide wheel support structure 2, support main board 21, mounting plate 22, side ear 23, support guide wheel 24, support column 25, side guide wheel 26, second magnet 27. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] like Figure 1-3 As shown, the sliding door track structure of this utility model includes a guide rail 1 and a guide wheel support structure 2 disposed on the guide rail 1. The guide rail 1 has a guide cavity 11 for the guide wheel support structure 2 to move. The guide wheel support structure 2 is located in the guide cavity 11. A first magnet 12 is disposed in the guide cavity 11, and at least one set of the first magnet 12 is disposed and is embedded at equal distances along the bottom of both sides of the inner wall of the guide cavity 11. The top and bottom of the first magnet 12 are fixed to the inner wall of the guide cavity 11 by bolts.
[0023] The present invention also includes a guide wheel support structure 2 comprising a support main board 21, wherein the bottom center of the support main board 21 extends through the guide cavity 11 and is connected to a mounting plate 22 having mounting holes.
[0024] When in use, the mounting plate 22 facilitates the installation of the sliding door panel below the mounting plate 22, enabling the guide wheel support structure 2 and the guide rail 1 to provide guidance for the moving door panel.
[0025] The present invention also includes side ears 23 at the bottom of both ends of the support main board 21, and a support guide wheel 24 is rotatably mounted on the inner side of the side ears 23 via a bearing, with the bottom of the support guide wheel 24 contacting the bottom of the guide cavity 11.
[0026] In use, the support guide wheel 24 provides rolling support for the door panel installed below the mounting plate 22.
[0027] The present invention further includes a second magnet 27 embedded on the side of the side ear 23 away from the supporting guide wheel 24. The two ends of the second magnet 27 are fixed to the side ear 23 by bolts, and the magnetic poles of the second magnet 27 and the first magnet 12 are arranged facing each other.
[0028] In use, the first magnet 12 and the second magnet 27, which are set with their magnetic poles facing each other, can reduce the lateral swaying of the guide wheel during its movement in the guide rail 1 through the interaction of the magnets, thereby further improving the stability and accuracy of the sliding door panel during the guiding process based on the guide rail 1 and the guide wheel support structure 2.
[0029] The present invention also includes that the supporting main board 21 is provided with two sets of side guide wheels 26, and the top two ends of the supporting main board 21 are respectively connected to support columns 25. The top of the support columns 25 is rotatably connected to the side guide wheels 26 at the corresponding positions through bearings, and the outer sides of the two sets of side guide wheels 26 are in contact with the inner walls of the guide cavity 11.
[0030] When in use, the side guide wheel 26 is used to reduce the lateral frictional resistance during the movement of the main board 21.
[0031] In use, the guide rail 1 is fitted to the door opening of the sliding door, and the door panel of the sliding door is installed below the mounting plate 22. This allows the guide wheel support structure 2 and the guide rail 1 to guide the moving door panel. During the opening and closing movement of the sliding door panel, the support guide wheel 24 provides rolling support for the door panel installed below the mounting plate 22. The side guide wheel 26 reduces the lateral frictional resistance during the movement of the main support plate 21. Based on the first magnet 12 and the second magnet 27 with their magnetic poles facing each other, the interaction of the magnets reduces the lateral swaying of the guide wheel during the movement of the guide rail 1, further improving the stability and accuracy of the sliding door panel during the guiding process based on the guide rail 1 and the guide wheel support structure 2.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sliding door track structure, characterized in that, The system includes a guide rail (1) and a guide wheel support structure (2) disposed on the guide rail (1). The guide rail (1) has a guide cavity (11) for the guide wheel support structure (2) to move. The guide wheel support structure (2) is located in the guide cavity (11). A first magnet (12) is disposed in the guide cavity (11), and at least one set of the first magnet (12) is disposed and is embedded at equal distances along the bottom of both sides of the inner wall of the guide cavity (11). The top and bottom of the first magnet (12) are fixed to the inner wall of the guide cavity (11) by bolts.
2. The track structure of a sliding door according to claim 1, characterized in that, The guide wheel support structure (2) includes a support main board (21), and the bottom of the support main board (21) extends through the guide cavity (11) and is connected to a mounting plate (22) with mounting holes.
3. The track structure of a sliding door according to claim 2, characterized in that, The support main board (21) has side ears (23) at both ends at the bottom. A support guide wheel (24) is rotatably mounted on the inner side of the side ears (23) through a bearing. The bottom of the support guide wheel (24) is in contact with the bottom of the guide cavity (11).
4. The track structure of a sliding door according to claim 3, characterized in that, A second magnet (27) is embedded on the side of the side ear (23) away from the support guide wheel (24). The two ends of the second magnet (27) are fixed to the side ear (23) by bolts, and the magnetic poles of the second magnet (27) and the first magnet (12) are arranged facing each other.
5. The track structure of a sliding door according to claim 4, characterized in that, The support main board (21) is provided with two sets of side guide wheels (26). The top two ends of the support main board (21) are respectively connected to support columns (25). The top of the support column (25) is rotatably connected to the side guide wheel (26) at the corresponding position through a bearing. The outer sides of the two sets of side guide wheels (26) are in contact with the inner walls of the guide cavity (11).