Train tail lamp anti-reverse hanging and anti-falling device

By designing an anti-reverse-hanging and anti-detachment device for train taillights, the problem of taillights falling off and being reverse-hanging during installation was solved by using indicator devices and locking plate limiting components, thereby improving the stability and installation efficiency of the taillights.

CN224476930UActive Publication Date: 2026-07-10CHINA RAILWAY CHENGDU BUREAU GRP CO LTD GUIYANG DEPOT

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY CHENGDU BUREAU GRP CO LTD GUIYANG DEPOT
Filing Date
2025-07-30
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing train taillights are prone to problems such as being hooked upside down or falling off during installation, which affects driving safety and reduces work efficiency.

Method used

A device for preventing train taillights from being reversed or detached was designed, including an indicator, a connecting channel, a locking plate, and a limiting component. The locking plate and the limiting component work together to prevent the taillights from falling off during vibration, and the blocking plate prevents them from being reversed.

Benefits of technology

It effectively prevents the taillights from falling off or getting stuck upside down during train operation, improving the stability and installation efficiency of the taillights and reducing the need for manual inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a train taillight anti-reverse-hanging and anti-detachment device, belonging to the field of train taillights. The device includes an indicator with display lights at both the front and rear. It also includes at least one connecting channel running through the indicator. A first locking plate with a convex-shaped mechanism is detachably connected to the connecting channel. A second locking plate is located at the corner of the first locking plate. The end of the second locking plate has a limiting component parallel to the first locking plate, including at least one limiting surface parallel to the plane of the first locking plate. When the connecting plate is inserted into the connecting channel, the limiting surface abuts against the outer wall of the connecting plate. This utility model can prevent the indicator from being reverse-hanging, making it difficult to hang the taillight when it is reverse-hanging. It also allows train crew to accurately distinguish whether the indicator should be hung on the left or right side of the direction of travel, thus avoiding the taillight being reverse-hanging.
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Description

Technical Field

[0001] This utility model relates to the field of train taillight technology, and in particular to a train taillight anti-reverse hanging and anti-detachment device. Background Technology

[0002] In the operation and maintenance of railway vehicles, the correct installation of taillights is crucial to driving safety. Taillights are usually installed on the connecting plate on the outside of the train to determine the train's direction and status.

[0003] In existing technologies, traditional train taillights are prone to being mounted upside down or detached during installation due to improper operation or external factors. This not only affects the normal use of the taillights but also poses a serious threat to driving safety.

[0004] First, the lack of anti-detachment design makes it prone to detachment due to vibrations when the train is running, such as the three taillight detachment incidents at Guiyang Station in June 2025.

[0005] Secondly, there is no anti-reverse hanging structure, so flight attendants have to confirm the installation direction through manual verification methods such as taking photos and feedback and ground crew communication, which results in low work efficiency. Utility Model Content

[0006] The purpose of this utility model is to solve the problem of train taillights being easily reversed and detached during installation in the prior art, and to propose a train taillight anti-reverse-hanging and anti-detachment device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A train taillight anti-reverse-hanging and anti-detachment device includes an indicator, with display lights provided at both the front and rear of the indicator, and at least one set of connecting channels extending through the indicator. A first locking plate with a convex-shaped mechanism is detachably connected to the connecting channel. A second locking plate is provided at the corner of the first locking plate. The end of the second locking plate is provided with a limiting component parallel to the first locking plate, which includes at least one limiting surface parallel to the plane of the first locking plate. When the connecting plate is inserted into the connecting channel, the limiting surface abuts against the outer wall of the connecting plate.

[0009] To facilitate the installation of the indicator on the train's connecting plate, preferably, the connecting channel includes a first connecting through hole and a second connecting through hole respectively opened on the indicator.

[0010] To facilitate the detachable connection of the locking plate to the indicator, the first locking plate further includes a snap-fit ​​plate, with extension plates at both ends of the snap-fit ​​plate and a bending plate at the end of the extension plate. The snap-fit ​​plate is detachably connected to the first connecting through hole, and the bending plate extends into the cavity of the first connecting through hole and abuts against its inner wall.

[0011] To facilitate applying pressure to the limiting component, the second locking plate further includes an inclined plate fixedly connected to the top of the snap-fit ​​plate, the inclined plate extending above the first connecting through hole.

[0012] Preferably, the limiting component includes a limiting plate fixedly connected to the end of the inclined plate, and the outer wall of the limiting plate abuts against the connecting plate.

[0013] To prevent the indicator from being hung upside down, preferably, an extension plate is provided on the outer wall of the second connecting through hole, the extension plate and the second connecting through hole forming an anti-hanging cavity, and a barrier plate is provided inside the anti-hanging cavity.

[0014] To facilitate the spraying of left and right direction markings on the indicator, preferably, an indicator panel is fixedly connected to the indicator, and the indicator panel is disposed between two sets of connecting through holes.

[0015] Compared with the prior art, this utility model provides a train taillight anti-reverse attachment and anti-detachment device, which has the following beneficial effects:

[0016] 1. The anti-reverse hanging and anti-detachment device for the train taillights uses a red indicator light facing the rear of the train and a white indicator light facing the front of the train. The first connecting hole is then smoothly hung into the connecting plate, and the locking plate and limiting components hold it in place on the connecting plate, making it difficult to detach and preventing the taillights from falling off due to vibration during train operation.

[0017] 2. The anti-reverse-hanging and anti-detachment device for the train taillights can effectively block the connecting plate from entering the second connecting through hole through the barrier plate, thereby preventing reverse-hanging.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technology. This utility model can prevent the indicator from being hung upside down. When the taillight is hung upside down, it is difficult to hang it. It can also enable vehicle passengers to accurately distinguish whether the indicator should be hung on the left or right side of the direction of travel, thereby avoiding the situation of the taillight being hung upside down. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of a train taillight anti-reverse-hanging and anti-detachment device proposed in this utility model;

[0020] Figure 2 This is a second-view structural schematic diagram of a train taillight anti-reverse hanging and anti-detachment device proposed in this utility model;

[0021] Figure 3 This is a partial structural diagram of a train taillight anti-reverse-hanging and anti-detachment device proposed in this utility model. Figure 1 ;

[0022] Figure 4 This is a partial structural diagram of a train taillight anti-reverse-hanging and anti-detachment device proposed in this utility model. Figure 2 .

[0023] In the figure: 1. Indicator; 2. First connecting through hole; 3. Second connecting through hole; 4. Snap-fit ​​plate; 5. Inclined plate; 6. Limiting plate; 7. Extension plate; 8. Bending plate; 9. Expansion plate; 10. Barrier plate; 11. Indicator panel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the operation and maintenance of railway vehicles, the correct installation of taillights is crucial to train safety. Taillights are usually installed on the connecting plate on the outside of the train to determine the direction and status of the train's movement. During the installation process, due to improper operation or external factors, taillights are prone to being hooked up backwards or falling off. This not only affects the normal use of the taillights but also poses a serious threat to train safety.

[0027] Example:

[0028] Reference Figures 1-4A train taillight anti-reverse-hanging and anti-detachment device includes an indicator 1. The indicator 1 has display lights on both the front and back. One display light has red LEDs to indicate a red indicator light, while the other display light has white LEDs to indicate a white indicator light. These are two common types of indicator lights on trains. Two sets of connecting channels are provided through the indicator 1: a first connecting through hole 2 and a second connecting through hole 3. A first locking plate with a convex-shaped mechanism is detachably connected to one of the connecting channels. A second locking plate is provided at the corner of the first locking plate. The end of the locking plate is provided with a limiting component parallel to the first locking plate. It includes a limiting surface parallel to the plane of the first locking plate. When the connecting plate is inserted into the connecting channel, the limiting surface abuts against the outer wall of the connecting plate. The second locking plate can apply a moving locking pressure to the limiting component to achieve a spring effect. At this time, the limiting surface on the second locking plate can abut against the outer wall of the connecting plate, thereby achieving a snap-fit ​​function. An expansion plate 9 is provided on the outer wall of the second connecting through hole 3. The expansion plate 9 and the second connecting through hole 3 form an anti-back-hanging cavity. A blocking plate 10 is provided in the anti-back-hanging cavity, which can block the second connecting through hole 3.

[0029] In the above schemes, for example Figure 1 As shown, when the taillights are hung correctly, the red indicator light of the indicator 1 can face the rear of the train and the white indicator light can face the front of the train. Then, the first connecting hole 2 can be smoothly hung into the connecting plate. The locking plate and the limiting component can then hold the taillights in place on the connecting plate, making them difficult to fall off and preventing them from falling off due to vibration during train operation. When the taillights are hung incorrectly, the blocking plate 10 can prevent the connecting plate from entering the second connecting hole 3, thus preventing the taillights from being hung and achieving the function of preventing incorrect hanging. In addition, before the modification, in order to prevent the taillights from being hung incorrectly, the crew workshop adopted the method of sending a photo of the taillights to the duty room when departing from Guiyang Station. The duty room then controlled the taillights through the ground crew inter-control card. This operation consumed a lot of manpower. After using the indicator 1, the control method of the duty room can be eliminated, thereby improving efficiency.

[0030] The aforementioned connection channel includes a first connection through hole 2 and a second connection through hole 3 respectively opened on the indicator 1 for connecting the connecting plate. The first locking plate includes a snap-fit ​​plate 4, with extension plates 7 at both ends of the snap-fit ​​plate 4 and a bending plate 8 at the end of the extension plate 7. The snap-fit ​​plate 4 is detachably connected to the first connection through hole 2. The bending plate 8 extends into the cavity of the first connection through hole 2 and abuts against its inner wall, thereby connecting the snap-fit ​​plate 4 to the first connection through hole 2. The second locking plate includes a locking plate fixedly connected to the top of the snap-fit ​​plate 4. The inclined plate 5 extends above the first connecting through hole 2. The limiting component includes a limiting plate 6 fixedly connected to the end of the inclined plate 5. The outer wall of the limiting plate 6 abuts against the connecting plate. The distance between the end of the inclined plate 5 and the side wall of the first connecting through hole 2 is less than the overall width of the first connecting through hole 2. Furthermore, the inclined plate 5 allows the limiting plate 6 to undergo a certain elastic deformation when subjected to pressure from the connecting plate, thereby better fitting the limiting plate 6 to the connecting plate, making it more difficult for the indicator 1 to fall off and improving the stability of the taillight.

[0031] An indicator panel 11 is fixedly connected to the indicator 1. The indicator panel 11 can be made of high-strength, wear-resistant acrylic or tempered glass. These materials not only have good transparency and impact resistance, but also effectively prevent surface scratches and damage caused by long-term use or external factors, thereby ensuring that the taillight indicator can be clearly seen and improving driving safety. The indicator panel 11 is located between two sets of connecting through holes. An arrow mark indicating the left or right direction of travel can be sprayed on the top of the indicator panel 11. The indicator 1 with the left side painted can be installed on the left side of the train, and the indicator 1 with the right side painted can be installed on the right side of the train, so that the train crew can accurately distinguish whether the indicator 1 should be hung on the left or right side of the direction of travel, thereby avoiding the situation of the taillight being hung backwards.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A train taillight anti-reverse-hanging and anti-detachment device, comprising an indicator (1), wherein display lights are provided at both the front and rear of the indicator (1), characterized in that, Also includes At least one set of connection channels is provided through the indicator (1). The connecting channel is detachably connected to a first locking plate with a convex-shaped mechanism. A second locking plate is provided at the corner of the first locking plate. The end of the second locking plate is provided with a limiting component parallel to the first locking plate, which includes at least one limiting surface parallel to the plane of the first locking plate. When the connecting plate is inserted into the connecting channel, the limiting surface abuts against the outer wall of the connecting plate.

2. The anti-reverse-hanging and anti-detachment device for train taillights according to claim 1, characterized in that, The connection channel includes a first connection through hole (2) and a second connection through hole (3) respectively opened on the indicator (1).

3. The anti-reverse-hanging and anti-detachment device for train taillights according to claim 2, characterized in that, The first locking plate includes a snap-fit ​​plate (4), with extension plates (7) at both ends of the snap-fit ​​plate (4) and a bending plate (8) at the end of the extension plate (7). The snap-fit ​​plate (4) is detachably connected to the first connecting through hole (2), and the bending plate (8) extends into the cavity of the first connecting through hole (2) and abuts against its inner wall.

4. The anti-reverse-hanging and anti-detachment device for train taillights according to claim 3, characterized in that, The second locking plate includes an inclined plate (5) fixedly connected to the top of the snap plate (4), the inclined plate (5) extending above the first connecting through hole (2).

5. A train taillight anti-reverse-hanging and anti-detachment device according to any one of claims 2-4, characterized in that, The limiting component includes a limiting plate (6) fixedly connected to the end of the inclined plate (5), and the outer wall of the limiting plate (6) abuts against the connecting plate.

6. The anti-reverse-hanging and anti-detachment device for train taillights according to claim 5, characterized in that, An expansion plate (9) is provided on the outer wall of the second connecting through hole (3). The expansion plate (9) and the second connecting through hole (3) form an anti-reverse hanging cavity. A barrier plate (10) is provided inside the anti-reverse hanging cavity.

7. A train taillight anti-reverse-hanging and anti-detachment device according to claim 2, characterized in that, An indicator panel (11) is fixedly connected to the indicator (1), and the indicator panel (11) is disposed between two sets of connecting through holes.