Tapered vehicle lamp for rail transit

Abstract

The utility model discloses a gradual change type car lamp for rail transit, which comprises a car lamp main body, a fixed seat, a first shaft moving piece, a second shaft moving piece, a shaft seat, a swing seat and a heavy plumb body.The shaft seat is arranged on the surface of the fixed seat and is connected with the swing seat; the vehicle lamp body is connected with the second shaft moving part through the sleeve seat, and the second shaft moving part is fixed to the swing seat. The first shaft moving part is connected between the shaft seat and the fixed seat. The first shaft moving part and the second shaft moving part are the same in structure and each comprise two arc strip bases, a floating part and an elastic connecting strip, a double-shaft flexible hinge structure is formed, and multidirectional deflection and vibration buffering of the automobile lamp are achieved. A weight body is arranged at the bottom of the lamp body, and the lamp always keeps a vertical irradiation posture during train operation under the action of gravity. The structure has the advantages of automatic correction of the lighting direction, multi-axis buffering, anti-seismic stability and the like, and the lighting reliability and safety of a train in a complex operation environment are improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle lighting technology, specifically a gradient vehicle light for rail transit. Background Technology

[0002] With the development of rail transit systems, vehicle lights, as important lighting and signaling devices during train operation, not only need to have high brightness and high stability lighting capabilities, but in recent years they have also increasingly introduced gradual color change functions to improve vehicle appearance recognition, signal indication diversity and operational safety.

[0003] Currently, most common gradient-color rail transit vehicle lights employ a multi-LED chip structure. This involves combining LED chips of different colors (such as red, green, and yellow) and sequentially lighting or layering them under circuit control to achieve a gradient color display effect. This type of technology is relatively mature and possesses a certain degree of visual dynamic effect.

[0004] However, in practical use, this type of multi-LED gradient headlight has the following main shortcomings:

[0005] Complex structure and poor reliability: To achieve multi-color lighting effects, multiple LED chips are often integrated, resulting in dense internal solder joints and numerous wiring. In environments with high-speed operation or frequent vibration of rail trains, these solder joints are prone to failures such as desoldering and cold solder joints, affecting the stability and lifespan of the lights.

[0006] Insufficient seismic resistance and vibration reduction performance: Existing structures are mostly connected by rigid supports or single-direction movable joints, lacking effective multi-directional flexible buffer design, making it difficult to absorb multi-directional impacts and vibrations generated during train operation, resulting in severe swaying of the lamp body or even structural fatigue.

[0007] Lack of self-stabilizing mechanism and lag in attitude adjustment: Some solutions attempt to introduce a swing arm structure or electronically controlled adjustment device, but their structure has a slow response and complex control, and cannot maintain the headlights vertical or correct orientation in the event of power failure or failure, affecting reliability.

[0008] Therefore, current rail transit vehicle lighting technology urgently needs a new technical solution that can achieve multi-directional self-adjustment in structure, has flexible buffering and self-aligning capabilities in connection, and combines gravity guidance to maintain vertical lighting, in order to overcome the above problems and improve the vehicle lighting's ability to adapt to complex dynamic operating environments. Utility Model Content

[0009] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0010] Therefore, the technical solution adopted by this utility model is as follows: a gradient-type vehicle light for rail transit, comprising a vehicle light body, a fixed base, a first pivot member, and a second pivot member. A bearing seat is rotatably mounted on the surface of the fixed base, and the bearing seat is fixedly connected to a swing seat. A sleeve is fitted onto the surface of the vehicle light body. The second pivot member is fixedly mounted on both sides of the sleeve and fixedly connected to the surface of the swing seat. The first pivot member is fixed to one end of the bearing seat and fixedly connected to the surface of the fixed base, forming a basic support and adjustment connection structure.

[0011] In a preferred embodiment, the first and second pivot members are configured identically, each comprising two sets of arc-shaped supports, a floating element, and an elastic connecting bar. The two ends of the elastic connecting bar are fixedly connected to the surfaces of the floating element and the arc-shaped supports, respectively. The two sets of arc-shaped supports are interconnected, and the two sets of floating elements and the elastic connecting bar are arranged in an alternating pattern. Specifically, this structure provides flexible linkage through the elastic connecting bar, and together with the floating element and the arc-shaped supports, constructs a dual-axis flexible swing mechanism, enabling the headlights to adapt to the train's attitude changes during operation, achieving multi-degree-of-freedom automatic adjustment and effective vibration reduction.

[0012] In a preferred embodiment, the floating element is further configured as follows: the floating element is in the shape of an angle strip, and the elastic connecting strip is disposed on the angle bisector of the angle strip; the two sets of floating elements are arranged parallel to each other and are connected in close contact. Specifically, this structure enhances the force symmetry of the elastic connecting strip and the guiding accuracy when the headlights deflect, thereby improving the stability and responsiveness of the structure.

[0013] In a preferred embodiment, the elastic connecting strip is further configured as follows: it is a metal sheet forming a flexible connection between the arc-shaped support and the floating component. Specifically, this material and structural design can effectively absorb mechanical vibrations during operation, improving the fatigue resistance and long-term stability of the entire lighting system.

[0014] In a preferred embodiment, the surface of the swing seat is fixedly connected to the surface of the arc-shaped seat of the second pivot member, and both sides of the sleeve are fixedly connected to the surface of the arc-shaped seat of the second pivot member. Specifically, a closed and flexible linkage support system is formed between the headlight body, the second pivot member, and the swing seat, maintaining a balanced force on the headlight assembly during the swing adjustment process.

[0015] In a preferred embodiment, the fixed seat is further configured such that it is fixedly connected to the surface of the arc-shaped seat of the first moving member, and both sides of the seat are fixedly connected to the surface of the floating part of the first moving member. Specifically, this structure achieves a rigid-flexible combination between the basic fixed support and the flexible hinge module, which is beneficial for dispersing vibration stress and enhancing the overall lamp attitude control capability.

[0016] In a preferred embodiment, the headlight body is further configured such that a weighted plumb bob, which is a metal sphere, is fixedly connected to the bottom surface of the headlight body and lies on the same vertical line as the center of mass of the headlight body. Specifically, through the collinear design of the center of gravity, the headlight can naturally return to its upright position under the action of gravity after swinging, ensuring that the lighting direction always remains perpendicular to the ground, thereby enhancing the accuracy and stability of nighttime lighting or signal projection.

[0017] The beneficial effects achieved by this utility model are as follows:

[0018] 1. In this utility model, the main body of the vehicle lamp is connected to the supporting components through a dual-axis flexible hinge structure. Combined with the gravity self-adjustment mechanism of the weighted body, the posture correction of the vehicle lamp can be automatically realized during the tilting or turning of the train, and the vertical lighting direction can always be maintained, which significantly improves the lighting stability and visibility of the train at night or in complex environments.

[0019] 2. In this utility model, both the first and second axial moving parts adopt a flexible connection structure formed by combining elastic connecting strips and floating parts, which has multi-directional shock absorption and automatic self-alignment capabilities, and can effectively absorb the impact and sway during the operation of rail transit, thereby improving the overall seismic performance and service life of the system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0021] Figure 2 This is an exploded structural diagram of one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the main body of the vehicle lamp and its surface sleeve structure according to an embodiment of the present utility model;

[0023] Figure 4 This is a schematic diagram of the fixed base and the swing base structure according to one embodiment of the present utility model;

[0024] Figure 5 This is an exploded structural diagram of the shaft moving component according to an embodiment of the present invention.

[0025] Figure label:

[0026] 100. Headlight body; 110. Mounting bracket; 120. Weighted plumb bob; 200. Mounting bracket; 210. Bearing bracket; 220. Horizontal mount;

[0027] 300, First pivot component; 400, Second pivot component; 410, Arc strip seat; 420, Floating component; 430, Elastic connecting strip. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a gradient vehicle light for rail transit.

[0031] Combination Figures 1-5 As shown, this utility model provides a gradient-type vehicle light for rail transit, comprising: a light body 100, a fixed base 200, a first pivot member 300, and a second pivot member 400. A bearing seat 210 is rotatably mounted on the surface of the fixed base 200, and a swing seat 220 is fixedly connected to the bearing seat 210. A sleeve 110 is fitted onto the surface of the light body 100. The second pivot member 400 is fixedly mounted on both sides of the sleeve 110 and fixedly connected to the surface of the swing seat 220. The first pivot member 300 is fixed to one end of the bearing seat 210 and fixedly connected to the surface of the fixed base 200.

[0032] The first and second pivot members 300 and 400 have the same structure, each including two sets of arc-shaped seats 410, floating members 420, and elastic connecting bars 430. The two ends of each elastic connecting bar 430 are fixedly connected to the surfaces of the corresponding floating member 420 and arc-shaped seat 410. The two sets of arc-shaped seats 410 are connected to each other, and the two sets of floating members 420 and elastic connecting bars 430 are arranged in an alternating pattern, forming a dual-axis flexible hinge structure, which facilitates multi-directional deflection adjustment and vibration damping of the headlight body 100.

[0033] Furthermore, such as Figure 3 , Figure 4 As shown, the floating component 420 has an angled strip structure, and the elastic connecting strip 430 is arranged on the angle bisector of the floating component 420 to ensure balanced force distribution during flexible connection. The two sets of floating components 420 are arranged parallel to each other and fit together in the connection area, further enhancing system stability and deflection guidance accuracy.

[0034] Furthermore, the elastic connecting strip 430 is preferably made of a sheet-like metal elastic material, used to realize a flexible connection structure between the arc strip seat 410 and the floating member 420. This structure can provide a cushioning effect during vehicle movement, while ensuring structural resilience and maintaining the stability of the headlight posture.

[0035] like Figure 4 , Figure 5As shown, in this embodiment, the surface of the swing seat 220 is fixedly connected to the surface of the arc seat 410 of the second shaft member 400, forming a stable linkage relationship; at the same time, the left and right sides of the sleeve 110 are also fixedly connected to the surface of the arc seat 410 of the second shaft member 400, so that the headlight body 100 is movably connected to the swing seat 220 through the second shaft member 400, so that the headlight can swing and adjust around the axis of the swing seat.

[0036] Furthermore, such as Figure 2 As shown, the fixed seat 200 is fixedly connected to the surface of the arc seat 410 of the first shaft moving member 300 to ensure the rigid support of the overall structure; at the same time, the left and right sides of the shaft seat 210 are fixedly connected to the surface of the floating member 420 of the first shaft moving member 300, respectively, providing a flexible connection channel for the structure, so that when the posture of the rail transit vehicle changes, the main body 100 of the vehicle lamp can coordinate and adjust the lighting direction through the dual shaft moving member system to maintain vertical projection.

[0037] like Figure 1 As shown, a weighted plumb bob 120 is fixedly connected to the bottom surface of the headlight body 100. The weighted plumb bob 120 is a metal sphere structure, and its position is set on the same vertical line as the center of mass of the headlight body 100. Through this structure, when the train tilts, the weighted plumb bob 120 provides a self-stabilizing adjustment torque under the action of gravity, so that the headlight body 100 automatically returns to the upright position, realizing the self-adjustment of the headlight's attitude and the constant illumination direction.

[0038] Based on the above implementation structure, when the railcar is in operation, especially under conditions of acceleration, deceleration, cornering, or vibration, the headlight body 100 can achieve multi-directional deflection buffering through the dual-axis flexible hinge structure (first axle moving member 300 and second axle moving member 400) and its internal elastic connection system (including arc strip seat 410, floating member 420 and elastic connecting bar 430). Simultaneously, guided by the plumb bob 120, the headlight body 100 always maintains a vertical illumination state, ensuring a stable beam without deviation, effectively improving lighting effect and operational safety.

[0039] Working principle and usage process of this utility model:

[0040] This invention achieves automatic vertical correction and stable illumination of vehicle lights when the vehicle is tilted or turning, through a structural design that automatically adjusts the direction of the headlights based on the direction of gravity. Its main principle is as follows:

[0041] The headlight body 100 is connected to the second pivot member 400 via the sleeve 110, and the second pivot member 400 is connected to the swing seat 220, allowing the headlight to rotate around its axis. The connection between the first pivot member 300 and the axle seat 210 enables the headlight body 100 to rotate around the axis of the axle seat 210. Furthermore, the first pivot member 300 and the second pivot member 400 achieve a dual-axis flexible hinge of the headlight body 100, providing multi-directional vibration damping.

[0042] During shock absorption, the weighted plumb bob 120 is vertically aligned with the center of gravity of the headlight: With the help of the weighted plumb bob, even if the train body tilts when it is running, the headlight body 100 always maintains a downward vertical posture under the action of gravity, thereby maintaining the direction of illumination without deviation.

[0043] Both the first axle actuator 300 and the second axle actuator 400 adopt a flexible hinge structure, including an elastic connecting bar 430, a floating member 420, and an arc-shaped seat 410. This structure provides elastic buffering and displacement absorption capabilities, allowing it to adapt to angular changes during vehicle movement and return to its original position, thus improving stability and reliability. The symmetrical arrangement of the dual axle actuators enhances the balance and responsiveness of the headlight attitude control.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A gradient-type vehicle light for rail transit, characterized in that, include: The vehicle headlight body (100), the fixed seat (200), the first pivot (300) and the second pivot (400) are provided. The fixed seat (200) is rotatably mounted with a bearing seat (210), and the bearing seat (210) is fixedly connected to a swing seat (220). The surface of the vehicle headlight body (100) is fitted with a sleeve seat (110). The second pivot (400) is fixedly installed on both sides of the sleeve seat (110) and is fixedly connected to the surface of the swing seat (220). The first pivot (300) is fixed to one end of the bearing seat (210) and is fixedly connected to the surface of the fixed seat (200). The first axial member (300) and the second axial member (400) have the same structure, each including two sets of arc strip seats (410), floating members (420) and elastic connecting strips (430). The two ends of the elastic connecting strips (430) are fixedly connected to the surfaces of the floating members (420) and the arc strip seats (410) respectively. The two sets of arc strip seats (410) are connected to each other, and the two sets of floating members (420) and elastic connecting strips (430) are arranged in an alternating manner.

2. The gradient-type vehicle light for rail transit according to claim 1, characterized in that, The floating component (420) is in the shape of an angle strip, and the elastic connecting strip (430) is located on the angle bisector of the floating component (420). The two sets of floating components (420) are parallel to each other and are closely connected.

3. The gradient-type vehicle light for rail transit according to claim 1, characterized in that, The elastic connecting strip (430) is in the form of a metal sheet and is used for the flexible connection between the arc strip seat (410) and the floating member (420).

4. The gradient-type vehicle light for rail transit according to claim 1, characterized in that, The surface of the swing seat (220) is fixedly connected to the surface of the arc seat (410) of the second shaft member (400), and both sides of the sleeve (110) are fixedly connected to the surface of the arc seat (410) of the second shaft member (400).

5. The gradient-type vehicle light for rail transit according to claim 1, characterized in that, The fixed seat (200) is fixedly connected to the surface of the arc seat (410) of the first shaft moving member (300), and the two sides of the shaft seat (210) are fixedly connected to the surface of the floating member (420) of the first shaft moving member (300).

6. The gradient-type vehicle light for rail transit according to claim 1, characterized in that, A weighted plumb bob (120) is fixedly connected to the bottom surface of the headlight body (100). The weighted plumb bob (120) is a metal sphere and is located on the same vertical line as the center of mass of the headlight body (100).

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