Railway passenger car hidden light source rapid installation structure
By using a quick-installation structure for concealed light sources in rail passenger vehicles and utilizing the automatic alignment function of torsion springs and compression springs, the problem of complex installation of traditional lighting systems has been solved, achieving efficient assembly and simple maintenance, thereby improving overall efficiency and passenger experience.
Patent Information
- Application Number
- CN202522596728.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-12-08
AI Technical Summary
The existing lighting system for rail passenger vehicles has a complicated installation structure, resulting in long production, assembly, operation and maintenance times, which increases costs and risks.
The system adopts a fast-installation structure for concealed light sources used in rail passenger vehicles. It utilizes the elastic reset characteristics of torsion springs and compression springs to achieve automatic alignment of the locking blocks and slots, simplifying the installation process. Furthermore, it enhances light transmittance and safety through a protective plate made of transparent acrylic material.
This significantly improved assembly efficiency, shortened maintenance time, reduced operating costs, and enhanced the passenger experience.
Smart Images

Figure CN223835586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of interior technology of rail vehicles, and in particular to a quick-installation structure for a concealed light source in a rail passenger car. Background Technology
[0002] As the core carrier of public transportation, the lighting system of rail passenger cars not only directly affects the passenger riding experience, but is also closely related to operation and maintenance efficiency and driving safety.
[0003] Existing traditional lighting systems mostly use fluorescent lamps, which are not only energy-intensive and short-lived, but also have cumbersome installation structures. They generally rely on bolts and other components for fixing, and require specialized tools such as screwdrivers and wrenches for assembly. This makes it difficult for a single person to complete the work independently, resulting in long installation times for lighting systems during the vehicle production and assembly phase, significantly reducing overall assembly efficiency. On the other hand, in the operation and maintenance phase, due to the complex connection between the light source and the protective structure, the disassembly process is also time-consuming and labor-intensive when the lighting bulbs malfunction and need to be repaired or replaced. It often requires maintenance personnel to carry a full set of tools to operate, which not only extends the vehicle's downtime for maintenance but also increases maintenance costs. Utility Model Content
[0004] To address the aforementioned issues of reliance on bolts and other multi-component assembly for fixing, requiring specialized tools such as screwdrivers and wrenches for assembly, which is difficult for a single person to complete independently, resulting in lengthy installation times for the lighting system during vehicle production and assembly, significantly reducing overall production efficiency. On the other hand, during operation and maintenance, due to the complex connection between the light source and the protective structure, the disassembly process is equally time-consuming and labor-intensive when the lighting bulb malfunctions and needs repair or replacement. It often requires maintenance personnel to carry a full set of tools, which not only extends the vehicle's downtime for maintenance and increases maintenance costs but may also damage the surrounding interior structure due to improper disassembly. This utility model provides a quick-installation structure for concealed light sources in rail passenger vehicles.
[0005] This utility model provides a quick-installation structure for a concealed light source in a rail passenger vehicle, employing the following technical solution:
[0006] A quick-installation structure for a concealed light source in a rail passenger vehicle includes an interior mounting plate. A mounting frame is fixedly connected to the bottom of the interior mounting plate. A through groove is formed at the bottom of the mounting frame. An installation slot is formed at the top of the inner wall of the through groove. A light bulb is threaded into the installation slot. Rectangular slots are formed on both the left and right sides of the inner wall of the through groove. A fixing plate is rotatably connected to the inside of each rectangular slot. A protective plate is slidably connected to the lower side of the inner wall of the through groove. L-shaped slots are formed on both the left and right sides of the protective plate. A retaining plate is slidably connected to the inside of each L-shaped slot.
[0007] Optionally, in the above-mentioned quick installation structure of the hidden light source of the rail passenger car, the fixing plate includes two middle-shaped plates. The two horizontal plates of the two middle-shaped plates are respectively rotatably connected to the front and rear sides of the inner walls of the two rectangular grooves. A clamping block is fixedly connected to the opposite sides of the horizontal plates of the two middle-shaped plates. Torsion springs are fixedly sleeved on the front and rear sides of the horizontal plates of the middle-shaped plates, and one end of the torsion spring is fixedly connected to the side surface of the inner wall of the rectangular groove.
[0008] Through the above technical solution, it is convenient to utilize the elastic reset characteristic of the torsion spring to drive the automatic rotation of the middle-shaped plate, so that the clamping block can quickly be inserted into the corresponding card slot without manual precise alignment, improving the positioning efficiency and fixing stability during the installation of the protection plate.
[0009] Optionally, in the above-mentioned quick installation structure of the hidden light source of the rail passenger car, a protection block is fixedly connected to the top of the protection plate, and two card slots adapted to the clamping blocks are provided on the top of the protection block.
[0010] Through the above technical solution, it is convenient to form a precise and firm clamping fit between the clamping block and the card slot, which not only provides stable vertical fixation for the protection plate, but also fills the structural gap through the protection block, preventing the protection plate from shaking and generating abnormal noises, and at the same time enhancing the protection and sealing performance of the internal lighting bulb.
[0011] Optionally, in the above-mentioned quick installation structure of the hidden light source of the rail passenger car, the clamping plate includes two L-shaped plates, the L-shaped plates are respectively slidably connected inside the two L-shaped grooves, and first compression springs are fixedly connected to the opposite sides of the two horizontal plates of the L-shaped plates, and one end of the first compression spring is fixedly connected to the inside of the horizontal groove of the L-shaped groove.
[0012] Through the above technical solution, it is convenient to utilize the elastic acting force of the first compression spring to push the L-shaped plate to automatically reset in the L-shaped groove, so that the clamping plate can quickly lock the Z-shaped rod.
[0013] Optionally, in the above-mentioned quick installation structure of the hidden light source of the rail passenger car, a Z-shaped rod is movably inserted into the side surface of the inner wall of the rectangular groove. The top of the upper vertical rod of the Z-shaped rod abuts against the bottom of the vertical plate of the middle-shaped plate. Connecting blocks are fixedly connected to the front and rear sides of the lower vertical rod of the Z-shaped rod. Moving grooves adapted to the connecting blocks are provided on the front and rear sides of the inner wall of the rectangular groove. A second compression spring is fixedly connected to the top of the connecting block, and the top end of the second compression spring is fixedly connected to the upper side of the inner wall of the moving groove.
[0014] Through the above technical solution, it is convenient to quickly unlock the middle-shaped plate by pressing the Z-shaped rod. At the same time, the second compression spring can drive the Z-shaped rod to automatically return to its original position, making the unlocking operation convenient and efficient. The cooperation between the connecting block and the moving groove can ensure the smoothness of the movement process of the Z-shaped rod.
[0015] Optionally, in the above-mentioned quick-installation structure for concealed light sources in rail passenger vehicles, the bottom of the lower vertical plate of the Z-shaped rod contacts the top of the protective block, a fixing groove is provided on the side of the lower vertical rod of the Z-shaped rod, a fixing block is slidably connected inside the fixing groove, and one side of the fixing block is fixedly connected to the side of the vertical plate of the L-shaped plate.
[0016] The above technical solution allows the movement of both the Z-shaped rod and the protective plate to be restricted simultaneously after the fixing block is embedded in the fixing groove.
[0017] Optionally, in the above-mentioned quick-installation structure for concealed light sources in rail passenger vehicles, the bottom of the protective plate is rounded, and the material of the protective plate is transparent acrylic.
[0018] The above technical solutions ensure the transparency of the lighting light through the transparent acrylic protective panel, achieving a soft luminous effect from the hidden light source and enhancing the passenger experience. The rounded corners prevent sharp edges from appearing on the protective panel, reducing the risk of injury to passengers in the event of an accidental collision, while also complying with the safety design specifications for the interior of rail passenger vehicles.
[0019] In summary, this utility model has at least one of the following beneficial effects: by resetting the torsion spring and the first compression spring, the torsion spring drives the central plate to rotate, so that the locking block is accurately locked into the slot of the protective block. At the same time, the L-shaped plate is released, so that the L-shaped plate drives the fixing block to be embedded in the fixing slot through the first compression spring. No additional tools are needed throughout the process, and a single person can quickly complete the installation and fixing of the protective plate and the concealed light source, which greatly improves the assembly efficiency.
[0020] By pressing the two L-shaped plates inward, the restriction of the fixing block on the Z-shaped rod is simultaneously released. Then, the Z-shaped rod is moved upward by the protective plate. The upper vertical bar of the Z-shaped rod then abuts against the vertical plate of the central plate, causing the locking block to disengage from the slot. At this point, the protective plate can be removed directly, realizing the quick disassembly of the concealed light source. This greatly facilitates the inspection and replacement of the lighting bulb, effectively shortens maintenance time, and reduces operation and maintenance costs. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a three-dimensional cross-sectional view of the mounting frame of this utility model;
[0023] Figure 3 This is a partial three-dimensional cross-sectional view of the mounting frame of this utility model;
[0024] Figure 4 This is a partial three-dimensional structural diagram of the Z-shaped rod and the Chinese character plate of this utility model;
[0025] Figure 5This is a partial three-dimensional structural diagram of the protective plate of this utility model.
[0026] In the diagram: 1. Interior mounting plate; 2. Mounting frame; 3. Through groove; 4. Mounting groove; 5. Light bulb; 6. Rectangular groove; 601. Z-shaped rod; 602. Connecting block; 603. Moving groove; 604. Second compression spring; 605. Fixing groove; 606. Fixing block; 7. Fixing plate; 701. Center plate; 702. Locking block; 703. Locking groove; 704. Torsion spring; 8. Protective plate; 801. Protective block; 9. L-shaped groove; 10. Locking plate; 1001. L-shaped plate; 1002. First compression spring. Detailed Implementation
[0027] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail below.
[0028] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides an embodiment of a quick-installation structure for a concealed light source in a rail passenger vehicle, comprising an interior mounting plate 1, an mounting frame 2 fixedly connected to the bottom of the interior mounting plate 1, a through groove 3 at the bottom of the mounting frame 2, an mounting groove 4 at the top of the inner wall of the through groove 3, a lighting bulb 5 threadedly connected inside the mounting groove 4, rectangular grooves 6 on both the left and right sides of the inner wall of the through groove 3, a fixing plate 7 rotatably connected inside the rectangular groove 6, a protective plate 8 slidably connected to the lower side of the inner wall of the through groove 3, and L-shaped grooves 9 on both the left and right sides of the protective plate 8, with a retaining plate 10 slidably connected inside the L-shaped groove 9.
[0029] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The fixing plate 7 includes two Chinese character plates 701. The two horizontal plates of the two Chinese character plates 701 are rotatably connected to the front and rear sides of the inner walls of the two rectangular slots 6 respectively. The horizontal plates of the two Chinese character plates 701 are fixedly connected to the opposite side of the horizontal plates. The front and rear sides of the horizontal plates of the Chinese character plates 701 are fixedly sleeved with torsion springs 704. One end of the torsion spring 704 is fixedly connected to the side of the inner wall of the rectangular slot 6. With the elastic reset characteristic of the torsion spring 704, the Chinese character plates 701 are automatically rotated, so that the locking blocks 702 quickly lock into the corresponding locking slots 703. There is no need for manual precise alignment, which improves the positioning efficiency and fixing stability of the protective plate 8 during installation.
[0030] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The top of the protective plate 8 is fixedly connected to a protective block 801. The top of the protective block 801 has two slots 703 that cooperate with the slot 702, so that the slot 702 and the slot 703 form a precise and firm engagement. This provides stable vertical fixation for the protective plate 8, and the protective block 801 can fill the structural gaps to prevent the protective plate 8 from shaking and making abnormal noises. At the same time, it enhances the protective sealing of the internal lighting bulb 5.
[0031] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The locking plate 10 includes two L-shaped plates 1001, which are slidably connected to the inside of two L-shaped grooves 9. Each of the two horizontal plates of the L-shaped plate 1001 is fixedly connected to a first compression spring 1002 on one side of its opposite side. One end of the first compression spring 1002 is fixedly connected to the inside of the horizontal groove of the L-shaped groove 9. The elastic force of the first compression spring 1002 is used to push the L-shaped plate 1001 to automatically reset in the L-shaped groove 9, so that the locking plate 10 can quickly lock the Z-shaped rod 601.
[0032] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A Z-shaped rod 601 is movably inserted into the side of the inner wall of the rectangular groove 6. The top of the upper vertical rod of the Z-shaped rod 601 abuts against the bottom of the vertical plate of the Chinese character plate 701. Connecting blocks 602 are fixedly connected to the front and rear sides of the lower vertical rod of the Z-shaped rod 601. Moving grooves 603 that cooperate with the connecting blocks 602 are opened on the front and rear sides of the inner wall of the rectangular groove 6. A second compression spring 604 is fixedly connected to the top of the connecting block 602. The top of the second compression spring 604 is fixedly connected to the upper side of the inner wall of the moving groove 603. The Chinese character plate 701 can be quickly unlocked by pressing the Z-shaped rod 601. At the same time, the second compression spring 604 can drive the Z-shaped rod 601 to automatically return to its original position, making the unlocking operation convenient and efficient. The cooperation between the connecting block 602 and the moving groove 603 can ensure the stability of the Z-shaped rod 601 during movement.
[0033] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The bottom of the lower vertical plate of the Z-shaped rod 601 contacts the top of the protective block 801. A fixing groove 605 is provided on the side of the lower vertical rod of the Z-shaped rod 601. A fixing block 606 is slidably connected inside the fixing groove 605. One side of the fixing block 606 is fixedly connected to the side of the vertical plate of the L-shaped plate 1001. After the fixing block 606 is embedded in the fixing groove 605, it can simultaneously restrict the movement of the Z-shaped rod 601 and the protective plate 8.
[0034] See the attached diagram in the instruction manual. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The bottom of the protective plate 8 is rounded, and the material of the protective plate 8 is transparent acrylic. The transparent acrylic material of the protective plate 8 ensures the transparency of the lighting light and achieves the soft lighting effect of the hidden light source, which improves the passenger riding experience. The rounded corner treatment can avoid sharp edges on the edge of the protective plate 8, reduce the risk of injury to passengers in case of accidental collision, and at the same time comply with the safety design specifications of rail passenger car interior.
[0035] Working principle: When using the railcar concealed light source quick installation structure, the torsion spring 704 and the first compression spring 1002 elastically reset the torsion spring 704 to drive the central plate 701 to rotate, so that the locking block 702 accurately engages in the locking groove 703 of the protective block 801. At the same time, the L-shaped plate 1001 is released, so that the L-shaped plate 1001, through the rebound force of the first compression spring 1002, drives the fixing block 606 to embed into the fixing groove 605 of the Z-shaped rod 601. No additional tools are needed throughout the process, and a single person can quickly complete the installation and fixing of the protective plate 8 and the concealed light source, which greatly improves the assembly efficiency.
[0036] When disassembling the concealed light source, the two L-shaped plates 1001 are pressed inward simultaneously, releasing the restriction of the fixing block 606 on the Z-shaped rod 601. Then, the Z-shaped rod 601 is moved upward by the protective plate 8, and the upper vertical bar of the Z-shaped rod 601 abuts against the vertical plate of the central plate 701, causing the locking block 702 to disengage from the slot 703. At this time, the protective plate 8 can be removed directly, realizing the rapid disassembly of the concealed light source. This greatly facilitates the inspection and replacement of the lighting bulb 5, effectively shortens the maintenance time, and reduces the operation and maintenance cost.
[0037] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A quick-installation structure for a concealed light source in a rail passenger vehicle, comprising an in-vehicle mounting plate (1), wherein a mounting frame (2) is fixedly connected to the bottom of the in-vehicle mounting plate (1), characterized in that: The bottom of the mounting frame (2) is provided with a through groove (3), the top of the inner wall of the through groove (3) is provided with a mounting groove (4), the interior of the mounting groove (4) is threaded with a light bulb (5), the left and right sides of the inner wall of the through groove (3) are provided with rectangular grooves (6), the interior of the rectangular grooves (6) is rotatably connected with a fixing plate (7), the lower side of the inner wall of the through groove (3) is slidably connected with a protective plate (8), the left and right sides of the protective plate (8) are provided with L-shaped grooves (9), the interior of the L-shaped grooves (9) is slidably connected with a clamping plate (10).
2. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 1, characterized in that: The fixing plate (7) includes two Chinese character plates (701). The two horizontal plates of the two Chinese character plates (701) are rotatably connected to the front and rear sides of the inner wall of the two rectangular grooves (6). The horizontal plates of the two Chinese character plates (701) are fixedly connected to the opposite side of the horizontal plates. Torsion springs (704) are fixedly sleeved on the front and rear sides of the horizontal plates of the Chinese character plates (701). One end of the torsion spring (704) is fixedly connected to the side of the inner wall of the rectangular groove (6).
3. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 2, characterized in that: The top of the protective plate (8) is fixedly connected to a protective block (801), and the top of the protective block (801) has two slots (703) that cooperate with the card block (702).
4. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 1, characterized in that: The card plate (10) includes two L-shaped plates (1001), which are slidably connected to the inside of two L-shaped grooves (9). A first compression spring (1002) is fixedly connected to one side of each of the two horizontal plates of the L-shaped plate (1001), and one end of the first compression spring (1002) is fixedly connected to the inside of the horizontal groove of the L-shaped groove (9).
5. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 1, characterized in that: A Z-shaped rod (601) is movably inserted into the side of the inner wall of the rectangular groove (6). The top of the upper vertical rod of the Z-shaped rod (601) abuts against the bottom of the vertical plate of the Chinese character plate (701). Connecting blocks (602) are fixedly connected to the front and rear sides of the lower vertical rod of the Z-shaped rod (601). Moving grooves (603) that cooperate with the connecting blocks (602) are opened on the front and rear sides of the inner wall of the rectangular groove (6). A second compression spring (604) is fixedly connected to the top of the connecting block (602). The top of the second compression spring (604) is fixedly connected to the upper side of the inner wall of the moving groove (603).
6. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 5, characterized in that: The bottom of the lower vertical plate of the Z-shaped rod (601) contacts the top of the protective block (801). A fixing groove (605) is provided on the side of the lower vertical rod of the Z-shaped rod (601). A fixing block (606) is slidably connected inside the fixing groove (605). One side of the fixing block (606) is fixedly connected to the side of the vertical plate of the L-shaped plate (1001).
7. The quick-installation structure for concealed light sources in rail passenger vehicles according to claim 1, characterized in that: The bottom of the protective plate (8) is rounded, and the material of the protective plate (8) is transparent acrylic.