A lighting fixture and a rail vehicle

Abstract

The present invention discloses a lamp and a rail vehicle, relating to the field of rail vehicles, comprising a lamp body; a first engaging structure located on one side of the lamp body and used for assembling with the side wall of the rail vehicle; a second engaging structure located on the other side of the lamp body and used for assembling with the top of the rail vehicle; an annular cavity damping structure arranged between the lamp body and the first engaging structure; an extension arm; one end of the extension arm is connected to the bottom of the lamp body, and the other end is connected to the bottom of the second engaging structure to form a U-shaped cavity with an upward opening together with the lamp body and the second engaging structure; isolation and buffering between the lamp body and the first engaging structure and the second engaging structure are realized through the annular cavity damping structure and the U-shaped cavity, thereby damping the lamp body and improving the stability of the overall assembly of the lamp.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicles, and in particular, to a lamp and a rail vehicle. Background Art

[0002] In the prior art, the lamps applied to rail vehicles are often installed at the top corners of the inner chamber of the rail vehicle; clamping structures are added to both sides of the lamp body, so as to connect with the carriage of the rail vehicle through the clamping structures.

[0003] Specifically, a first clamping structure is arranged on one side of the lamp body, and a second clamping structure is arranged on the other side. Both the first clamping structure and the second clamping structure are directly assembled with the carriage of the rail vehicle, so as to position the lamp body in the inner chamber of the rail vehicle. However, such an installation and positioning structure makes the distance between the lamp body and the carriage of the rail vehicle close. When the rail vehicle runs at high speed, the vibration generated by the rail vehicle will be directly transmitted to the lamp body through the first clamping structure and the second clamping structure; especially in an environment with frequent vibrations, the direct connection between the lamp and the carriage may lead to more frequent inspection and adjustment of the connection part during maintenance, and the overall stability of the lamp is greatly reduced.

[0004] Therefore, the prior art still needs to be improved and developed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a lamp and a rail vehicle aiming at improving the assembly stability of the lamp in view of the above defects of the prior art.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0007] A lamp, which includes a lamp body, and further includes:

[0008] A first clamping structure, located on one side of the lamp body and used for assembling with the side wall of the rail vehicle;

[0009] A second clamping structure, located on the other side of the lamp body and used for assembling with the top of the rail vehicle;

[0010] An annular cavity damping structure, arranged between the lamp body and the first clamping structure;

[0011] An extension arm; one end of the extension arm is connected to the bottom of the lamp body, and the other end is connected to the bottom of the second clamping structure, so as to form a U-shaped cavity with an upward opening together with the lamp body and the second clamping structure.

[0012] The described lamp, wherein the top of the annular cavity vibration damping structure is detachably connected to the top of the rail vehicle, and the bottom of the annular cavity vibration damping structure is connected to the first engaging structure; an installation opening is provided at the bottom of the first engaging structure, and the installation opening is used for assembling with the side wall of the rail vehicle.

[0013] The described lamp further includes:

[0014] A plurality of multi-stage damping vibration dampers, which are arranged in the annular cavity vibration damping structure in an array;

[0015] The multi-stage damping vibration damper includes:

[0016] A flexible vibration damping layer, which is attached to the bottom of the annular cavity vibration damping structure;

[0017] An elastic vibration damping layer, which is arranged on the top of the flexible vibration damping layer;

[0018] A liquid damping layer, which is arranged on the top of the elastic vibration damping layer and is attached to the top of the annular cavity vibration damping structure.

[0019] The described lamp, wherein the lamp body includes:

[0020] An installation frame, one side of which is connected to the annular cavity vibration damping structure and the other side is connected to the extension arm; an assembly opening is provided at the bottom of the installation frame;

[0021] A rotating shaft, which is located in the assembly opening and is detachably connected to the installation frame;

[0022] A light source mounting plate, one side of which is used for detachably connecting to the installation frame, and the other side is detachably connected to the rotating shaft and can rotate relative to the rotating shaft to open and close the assembly opening;

[0023] A protective cover support, which is located below the light source mounting plate; one side of the protective cover support is rotatably connected to the rotating shaft, and the other side is detachably connected to the light source mounting plate and the installation frame respectively; a receiving space is formed by enclosing between the protective cover support and the light source mounting plate; a plurality of protective cover mounting positions are arranged along the length direction on the protective cover support;

[0024] A light source, which is arranged on the light source mounting plate and is located in the receiving space;

[0025] A plurality of protective covers, which are in one-to-one correspondence and cooperation with the protective cover mounting positions.

[0026] The described lamp further includes:

[0027] A positioning bar is located in the accommodating space and is arranged at the protective cover bracket close to the rotating shaft; a mounting slide is arranged on one side of the positioning bar close to the light source mounting plate;

[0028] A slide bar, matched with the installation slideway;

[0029] A gasket is arranged on the slide bar and is used to fit with the light source mounting plate.

[0030] The lamp further comprises:

[0031] A U-shaped sealing strip is located in the protective cover installation position and close to the positioning strip; a portion of the protective cover is located in the U-shaped sealing strip;

[0032] A plurality of pressing plates; one end of each pressing plate has a snap-fit ​​position; a portion of each U-shaped sealing strip is located in the snap-fit ​​position;

[0033] The installation slide is provided with a plurality of clearance notches, and the clearance notches correspond to the pressure plates one by one; one end of the pressure plate away from the engaging position is located in the clearance notch and is detachably connected to the positioning strip.

[0034] The lamp, wherein the top of the mounting frame is provided with a plurality of through holes, the through holes corresponding to the light source mounting plate; when the assembly port is opened, the assembly port is communicated with the through holes.

[0035] The lamp further comprises:

[0036] A plurality of stoppers are disposed on the mounting frame;

[0037] A plurality of thread locking members; the thread locking members correspond to the stop members one by one and are located inside the stop members;

[0038] A plurality of threaded connectors correspond to the threaded locking components one by one; the threaded connectors sequentially pass through the protective cover bracket and the light source mounting plate and are threadedly connected with the threaded locking components.

[0039] The lamp, wherein the stopper comprises:

[0040] baffle; the baffle is provided with a connecting member through hole, the connecting member through hole corresponds to the threaded locking member and is used to accommodate the threaded connecting member;

[0041] A plurality of limiting pieces are arranged around the baffle plate and bent downward to enclose the baffle plate to form a receiving cavity; the threaded locking piece is located in the receiving cavity;

[0042] At least two U-shaped limit members are arranged on the limit piece; the side walls of the U-shaped limit members are recessed into the accommodation cavity and are arranged opposite to the baffle plate to limit the threaded locking member.

[0043] An orbital vehicle includes the lamp as described in any one of the above.

[0044] Beneficial effects: In the present invention, damping structures are additionally provided between the lamp body and the first engaging structure, and between the lamp body and the second engaging structure, realizing isolation and buffering between the lamp body and the first engaging structure and the second engaging structure, thereby damping the lamp body and improving the stability of the overall assembly of the lamp. At the same time, based on the fact that when the lamp is inclined and installed at the top corner of the orbital vehicle, the vibration received by the lamp body in the direction close to the side wall of the orbital vehicle is stronger, and the vibration received by the lamp body in the direction close to the top of the orbital vehicle is relatively weaker. In the present invention, different damping structures are respectively provided between the lamp body and the first engaging structure, and between the lamp body and the second engaging structure, so that while the annular cavity damping structure buffers, its closed-loop structure wall surface can help damp and provide additional support, thereby effectively dispersing the vibration and reducing the impact on the lamp body; and an extension arm is designed between the lamp body and the second engaging structure, thereby forming a U-shaped cavity between the lamp body and the second engaging structure. The opening of the U-shaped cavity is arranged upward, and the U-shaped cavity does not have a top. Instead, through an open design, more cavity space can be used to further disperse the vibration and enhance the vibration absorption effect. Description of the Drawings

[0045] Figure 1 is the overall structural schematic diagram of the lamp in the present invention;

[0046] Figure 2 is the reference diagram of the usage state of the lamp when the assembly opening in the present invention is opened;

[0047] Figure 3 is the assembly structural schematic diagram of the multi-stage damping shock absorber in the annular cavity damping structure in the present invention;

[0048] Figure 4 is the assembly structural schematic diagram among the mounting rack, the annular cavity damping structure, the first engaging structure, the extension arm and the second engaging structure in the present invention;

[0049] Figure 5 is the structural schematic diagram of the light source mounting plate in the present invention;

[0050] Figure 6 is the partial exploded structural schematic diagram of the lamp body in the present invention;

[0051] Figure 7 are schematic structural diagrams of the pressing plate in the present invention being respectively assembled with the U-shaped sealing strip and the installation slideway;

[0052] Figure 8 is a partial structural diagram of the protective cover bracket in the present invention;

[0053] Figure 9 is a schematic structural diagram when the first extension plate, the second extension plate and the inner buckle plate in the present invention are assembled through the threaded connecting piece;

[0054] Figure 10 is a schematic structural diagram of the stop member in the present invention;

[0055] Figure 11 is a schematic structural diagram when the lamps in the present invention are respectively assembled with the top and the side wall of the rail vehicle;

[0056] Figure 12 is Figure 11 a partial enlarged schematic diagram at position A in Detailed implementation manners

[0057] To make the objectives, technical solutions and advantages of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0058] The inventors of the present invention have found through research that the first engaging structure and the second engaging structure are directly installed on both sides of the lamp body of the rail vehicle, and the lamp body is assembled with the carriage of the rail vehicle through the first engaging structure and the second engaging structure. Directly connecting the lamp body with the carriage of the rail vehicle through the engaging structure, although it may have a simple and direct installation method, will cause problems such as loosening, falling off, and damage of the lamp body due to external vibration, impact and other factors in the long term; the continuous influence of vibration will cause uneven stress on the lamp body, damage to internal components, noise problems, etc., thus affecting the overall stability and service life of the lamp. Therefore, in order to improve the stability of the lamp, reduce vibration damage, extend the service life and improve safety, the present invention introduces a vibration damping design in the lamp applied to the rail vehicle.

[0059] Specifically, the present invention provides a lamp, such as Figure 1 , Figure 2 and Figure 11As shown in the figure, the lamp includes: a lamp body 1, a first engaging structure 2, a second engaging structure 3, an annular cavity damping structure 4, and an extension arm 5; the first engaging structure 2 is located on one side of the lamp body 1 and is used for assembling with the side surface of the top 100 of the rail vehicle; the second engaging structure 3 is located on the other side of the lamp body 1 and is used for assembling with the top 100 of the rail vehicle; the annular cavity damping structure 4 is arranged between the lamp body 1 and the first engaging structure 2; one end of the extension arm 5 is connected to the bottom of the lamp body 1, and the other end of the extension arm 5 is connected to the bottom of the second engaging structure 3 to form a U-shaped cavity 6 with an upward opening together with the lamp body 1 and the second engaging structure 3.

[0060] Specifically, the lamp body 1 is used to be installed at the corner of the top 100 of the rail vehicle. In order to expand the lighting range of the lamp body 1, the lamp body 1 is arranged obliquely (as Figure 11 shown). The first engaging structure 2 and the second engaging structure 3 are respectively connected to the rail vehicle from both sides of the lamp body 1. Among them, the first engaging structure 2 is used for assembling with the side surface of the top 100 of the rail vehicle, and the second engaging structure 3 is used for assembling with the top 100 of the rail vehicle. In the present invention, the annular cavity damping structure 4 is added between the lamp body 1 and the first engaging structure 2. The air or space in the annular cavity damping structure 4 can serve as a buffer layer to help absorb vibration or impact force, thereby reducing the transmission of vibration to the lamp body 1. The present invention also adds the extension arm 5 between the lamp body 1 and the second engaging structure 3, and through the U-shaped cavity 6 formed between the extension arm 5, the second engaging structure 3 and the lamp body 1, the lamp body 1 and the second engaging structure 3 are isolated and buffered to help absorb vibration or impact force, thereby reducing the transmission of vibration to the lamp body 1.

[0061] The design of the U-shaped cavity 6 with an upward opening enables the vibration to be reflected to the surroundings of the U-shaped cavity 6 after being transmitted through the top of the U-shaped cavity 6, thereby reducing the impact force of the vibration. When the vibration is reflected in the U-shaped cavity 6, energy consumption will occur, which is equivalent to converting a part of the vibration energy into heat energy or consuming it through the elastic deformation of the material, weakening the influence of the vibration on the lamp.

[0062] The annular cavity damping structure 4 has an additional top compared to the U-shaped cavity 6 because the lamp body 1 is inclined at the corner of the top 100 of the rail vehicle. When the rail vehicle vibrates, the vibration on the side close to the rail vehicle is greater, and the vibration transmission on the side is more direct, making it more vulnerable to external vibration, lateral impact, or irregular vibration, thus requiring a stronger damping mechanism. While the vibration on the side of the lamp body 1 close to the top 100 of the rail vehicle is relatively small, the vibration is usually more uniform, and the impact received is relatively slight. Therefore: In the present invention, the annular cavity damping structure 4 is provided between the lamp body 1 and the first engaging structure 2. While the annular cavity damping structure 4 buffers, its closed-loop structure wall can help with damping and provide additional support, thereby effectively dispersing the vibration and reducing the impact on the lamp body 1. And the extension arm 5 is designed between the lamp body 1 and the second engaging structure 3, thereby forming the U-shaped cavity 6 between the lamp body 1 and the second engaging structure 3. The opening of the U-shaped cavity 6 is arranged upward. Without a top, the U-shaped cavity 6 can use more cavity space through an open design to further disperse the vibration and enhance the vibration absorption effect.

[0063] It can be seen that in the present invention, damping structures are added between the lamp body 1 and the first engaging structure 2 and between the lamp body 1 and the second engaging structure 3, realizing the isolation and buffering between the lamp body 1 and the first engaging structure 2 and the second engaging structure 3, thereby damping the lamp body 1 and improving the stability of the overall assembly of the lamp. At the same time, based on the fact that when the lamp is inclined and installed at the corner of the top 100 of the rail vehicle, the vibration received by the lamp body 1 in the direction of the side wall 200 of the rail vehicle is stronger, and the vibration received by the lamp body 1 in the direction of the top 100 of the rail vehicle is relatively weaker. Different damping structures are respectively provided between the lamp body 1 and the first engaging structure 2 and between the lamp body 1 and the second engaging structure 3 in the present invention, such that while the annular cavity damping structure 4 buffers, its closed-loop structure wall can help with damping and provide additional support, thereby effectively dispersing the vibration and reducing the impact on the lamp body 1. And the extension arm 5 is designed between the lamp body 1 and the second engaging structure 3, thereby forming the U-shaped cavity 6 between the lamp body 1 and the second engaging structure 3. The opening of the U-shaped cavity 6 is arranged upward. Without a top, the U-shaped cavity 6 can use more cavity space through an open design to further disperse the vibration and enhance the vibration absorption effect.

[0064] In an embodiment of the present invention, the top of the annular cavity damping structure 4 is detachably connected to the top 100 of the rail vehicle, and the bottom of the annular cavity damping structure 4 is connected to the first engaging structure 2; asFigure 1 As shown, an installation opening 201 is provided at the bottom of the first engaging structure 2, and the installation opening 201 is used for assembling with the side surface of the top 100 of the rail vehicle.

[0065] Specifically, in a vibration environment such as a rail car body, the self - gravity of the lamp body 1 can help maintain the stability of the lamp; when the first engaging structure 2 is located at the bottom of the annular cavity damping structure 4, the gravity of the lamp body 1 will act downward naturally and be directly transmitted to the first engaging structure 2 at the bottom, thereby ensuring the stable connection between the lamp and the car body. The self - gravity of the lamp body 1 helps to resist external vibration or impact force, preventing the lamp from swinging or displacing. At the same time, in a vibration environment, the gravity of the lamp acts vertically downward. Therefore, in this embodiment, the installation opening 201 is provided at the bottom of the first engaging structure 2, and the contact surface between the first engaging structure 2 and the rail vehicle car body can increase the friction force, ensuring the firmness of the connection part and further enhancing the stability of the lamp installation.

[0066] In an embodiment of the present invention, the horizontal distance between the first engaging structure 2 and the lamp body 1 is less than the horizontal distance between the second engaging structure 3 and the lamp body 1.

[0067] Specifically, since the lamp body 1 is installed obliquely, the weight of the lamp body 1 is more concentrated near the first engaging structure 2. Therefore, the first engaging structure 2 is closer to the lamp body 1. And a longer extension arm 5 is provided between the second engaging structure 3 and the lamp body 1, making the second engaging structure 3 relatively far from the lamp body 1. The extension arm 5 can not only provide a damping effect for the lamp body 1, but also provide an installation space for other components, such as providing an installation space for the armrest 300 in the interior of the rail vehicle. That is, one end of the armrest 300 is assembled on the ground of the rail vehicle, and the other end is cooperatively installed with the extension arm 5.

[0068] In an embodiment of the present invention, the tops of the lamp body 1, the annular cavity damping structure 4, and the second engaging structure 3 are all flush and are cooperatively installed with the top 100 of the rail vehicle, thereby increasing the contact area between the lamp and the rail vehicle and further enhancing the stability of the lamp installation in the rail vehicle. And an assembly position 400 is extended and provided on the side wall 200 of the rail vehicle (such as Figure 11As shown in the figure, the second engaging structure 3 is fitted and installed with the assembly position 400. Therefore, in this embodiment, since the tops of the lamp body 1, the annular cavity damping structure 4, and the second engaging structure 3 are all fitted and installed with the top 100 of the rail vehicle, and the vibration of the top 100 of the rail vehicle is relatively small, while the contact area between the lamp and the rail vehicle is as large as possible, the vibration affected by the rail vehicle is as small as possible, further improving the stability of the lamp installed in the rail vehicle.

[0069] As Figure 3 As shown in the figure, the lamp further includes a plurality of multi-stage damping vibration absorbers 7, and the plurality of multi-stage damping vibration absorbers 7 are arranged in the annular cavity damping structure 4 and are arranged in an array. The multi-stage damping vibration absorber 7 includes: a flexible damping layer 701, an elastic damping layer 702, and a liquid damping layer 703; the flexible damping layer 701 is attached to the bottom of the annular cavity damping structure 4, the elastic damping layer 702 is arranged on the top of the flexible damping layer 701, and the liquid damping layer 703 is arranged on the top of the elastic damping layer 702 and is attached to the top of the annular cavity damping structure 4.

[0070] Specifically, during the rapid driving of the rail vehicle, the vibration generated by the side wall 200 of the rail vehicle is greater. Therefore, in this embodiment, the flexible damping layer 701, the elastic damping layer 702, and the liquid damping layer 703 are arranged in sequence from bottom to top; the flexible damping layer 701 uses flexible materials such as rubber, silica gel, polyurethane, etc. as the first damping layer, which can quickly absorb the initial impact force and reduce the vibration transmission to the next stage. The elastic damping layer 702 includes a plurality of springs, and the plurality of springs are arranged in an array, and the damping effect of the elastic damping layer 702 is adjusted by selecting various spring hardnesses to adapt to different loads and vibration intensities. The liquid damping layer 703 uses liquid to absorb rapid vibrations and further consumes vibration energy through the conduction of dispersed liquid. The liquid damping layer 703 can use materials such as silicone oil and / or polyurethane liquid.

[0071] The multi-stage damping vibration absorber 7 is cylindrical, and the flexible damping layer 701, the elastic damping layer 702, and the liquid damping layer 703 are arranged in sequence from bottom to top along the axis. The cylindrical structure of the multi-stage damping vibration absorber 7 has good symmetry, which enables the force on the multi-stage damping vibration absorber 7 to be evenly distributed under the action of vibration or impact; no matter from which direction the vibration or impact force is transmitted, the cylindrical structure can effectively disperse it, reduce local stress concentration, and thus reduce the risk of structural damage.

[0072] As Figures 4 - 8As shown, the lamp body 1 includes a mounting bracket 101, a rotating shaft 102, a light source mounting plate 103, a protective cover bracket 104, a light source 105, and a plurality of protective covers 106; one side of the mounting bracket 101 is connected to the annular cavity damping structure 4, and the other side is connected to the extension arm 5; an assembly port 8 is provided at the bottom of the mounting bracket 101 (as Figure 2 and Figure 4 shown); the rotating shaft 102 is located in the assembly port 8 and is detachably connected to the mounting bracket 101; one side of the light source mounting plate 103 is detachably connected to the mounting bracket 101, and the other side of the light source mounting plate 103 is detachably connected to the rotating shaft 102 and can rotate relative to the rotating shaft 102 to open and close the assembly port 8; the protective cover bracket 104 is located below the light source mounting plate 103; one side of the protective cover bracket 104 is rotatably connected to the rotating shaft 102, and the other side is detachably connected to the light source mounting plate 103 and the mounting bracket 101 respectively; a receiving space 9 is formed by enclosing between the protective cover bracket 104 and the light source mounting plate 103 (as Figure 1 shown); a plurality of protective cover mounting positions 10 are provided along the length direction on the protective cover bracket 104 (as Figure 6 shown); the light source 105 is arranged on the light source mounting plate 103 and is located in the receiving space 9; the plurality of protective covers 106 are in one-to-one correspondence and cooperation with the protective cover mounting positions 10.

[0073] Specifically, the mounting bracket 101 is used to be connected to the annular cavity damping structure 4, the extension arm 5, the light source mounting plate 103, the rotating shaft 102, and the protective cover bracket 104 respectively. The mounting bracket 101 has a receiving space 11 and the assembly port 8. Both the light source mounting plate 103 and the protective cover bracket 104 are rotatably connected to the rotating shaft 102, so that when the light source mounting plate 103 and the protective cover bracket 104 rotate synchronously and in the same direction relative to the rotating shaft 102, the light source mounting plate 103, the light source 105, the protective cover bracket 104, and the protective cover 106 can form an integral rotation to open and close the assembly port 8. When the assembly port 8 is closed, the light source mounting plate 103 is located in the receiving space 11.

[0074] A plurality of protective covers 106 are sequentially arranged along the length direction of the protective cover bracket 104, that is, a plurality of protective covers 106 are sequentially arranged along the length direction of the rail vehicle. The same side of the light source mounting plate 103 and the protective cover bracket 104 can rotate relative to the rotating shaft 102, and the other sides of both can be detachably connected to the mounting frame 101, so as to position the lamp body 1 in the state where the assembly opening 8 is closed. The light source 105 is arranged on the light source mounting plate 103 and is arranged towards the protective cover 106 to emit light from the protective cover 106.

[0075] A light-transmitting hole 12 is also provided on the protective cover bracket 104 corresponding to the protective cover mounting position 10 (as Figure 4 shown), at least a part of the protective cover 106 corresponds to the light-transmitting hole 12, so that a part of the protective cover 106 can be exposed through the light-transmitting hole 12 and the light can be emitted. As Figure 4 、 Figure 5 and Figure 6 shown, a plurality of C-shaped hanging rings 12 are provided on the mounting frame 101, the light source mounting plate 103 and the protective cover bracket 104, and the plurality of C-shaped hanging rings 12 are sequentially arranged along the length direction of the protective cover bracket 104 (that is, the length direction of the rail vehicle); the C-shaped hanging rings 12 are sleeved on the periphery of the rotating shaft 102, so as to provide the installation connection between the rotating shaft 102 and the mounting frame 101, the light source mounting plate 103 and the protective cover bracket 104, and provide the relative rotation of the light source mounting plate 103 and the protective cover bracket 104 relative to the rotating shaft 102.

[0076] In an embodiment of the present invention, as Figure 2 and Figure 4 shown, an inner buckle plate 13 is provided at the bottom of the mounting frame 101, and the inner buckle plate 13 is bent and buckled inward towards the receiving space 11; as Figure 5 shown, a first extension plate 14 is provided on the side of the light source mounting plate 103 away from the rotating shaft 102; as Figure 6 、 Figure 8 and Figure 9 shown, a second extension plate 15 is provided on the side of the protective cover bracket 104 away from the rotating shaft 102; when the assembly opening 8 is closed, as Figure 9 shown, the first extension plate 14 is located below the inner buckle plate 13 and is attached to the inner buckle plate 13, and the second extension plate 15 is located below the first extension plate 14 and is attached to the first extension plate 14. The first extension plate 14, the second extension plate 15 and the inner buckle plate 13 are detachably connected, so as to realize the closing of the assembly opening 8.

[0077] In one embodiment of this example, as Figure 6 and Figure 8 shown, a clamping groove 16 is provided on the second extension plate 15; as Figure 5 and Figure 9 shown, a clamping projection 17 is provided on the first extension plate 14, and the clamping projection 17 is matched with the clamping groove 16, so as to combine the first extension plate 14 and the second extension plate 15 into a whole. When the connection between the inner clamping plate 13 and the first extension plate 14 and the second extension plate 15 is disassembled, the light source mounting plate 103 and the protective cover bracket 104 can form a whole and rotate around the rotating shaft 102, so as to open the assembly port 8. At the same time, the clamping projection 17 can be pulled out of the clamping groove 16 under the action of an external force, so as to separate the light source mounting plate 103 from the protective cover bracket 104, so as to maintain or replace the light source 105 or other components in the accommodation space 9.

[0078] In one embodiment of the present invention, as Figure 4 shown, a plurality of through holes 18 are provided at the top of the mounting frame 101, and the through holes 18 correspond to the light source mounting plate 103; when the assembly port 8 is opened, the assembly port 8 is communicated with the through holes 18.

[0079] Specifically, when the assembly port 8 is closed, a part of the lamp body 1 can be exposed above the mounting plate through the through holes 18, improving the heat dissipation capacity of the light source 105. When the assembly port 8 is opened, the components on the top of the rail vehicle can be sequentially exposed through the through holes 18 and the assembly port 8, so as to facilitate the maintenance by the staff.

[0080] As Figure 6 and Figure 7 shown, the lamp further includes: a positioning strip 19, a sliding strip 20 and a gasket 21; the positioning strip 19 is located in the accommodation space 9 and is provided at the protective cover bracket 104 near the rotating shaft 102; an installation slideway 22 is provided on one side of the positioning strip 19 close to the light source mounting plate 103; the sliding strip 20 is matched with the installation slideway 22; the gasket 21 is provided on the sliding strip 20 and is used to fit with the light source mounting plate 103.

[0081] Specifically, the positioning strip 19 is disposed on the protective cover bracket 104 and fixedly connected to the protective cover bracket 104; the installation slideway 22 cooperates with the sliding strip 20, so that the sliding strip 20 is limited by the installation slideway 22, and the sliding strip 20 can be positioned on the positioning strip 19. The gasket 21 is fixedly connected to the sliding strip 20; when the clamping protrusion 17 is engaged with the clamping groove 16, the gasket 21 is in close contact with the light source mounting plate 103, so as to protect the light source mounting plate 103 through the gasket 21, and reduce the collision vibration between the two when the protective cover bracket 104 is opened and closed relative to the light source mounting plate 103, thereby prolonging the service life of the light source 105.

[0082] In an embodiment of the present invention, the installation slideway 22 is a convex-shaped slideway, and the sliding strip 20 is a convex-shaped sliding strip 20. After the sliding strip 20 and the installation slideway 22 are cooperatively installed, the sliding strip 20 can be limited by the self-structure of the installation slideway 22. The gasket 21 is an elastic gasket, and the outer surface of the gasket 21 is an arc surface.

[0083] As Figure 6 and Figure 7 shown, the lamp further includes a U-shaped sealing strip 23 and a plurality of pressing plates 24; the U-shaped sealing strip 23 is located in the protective cover installation position 10 and close to the positioning strip 19; a part of the protective cover 106 is located in the U-shaped sealing strip 23; one end of the pressing plate 24 has a clamping position; a part of the U-shaped sealing strip 23 is located in the clamping position; as Figure 7 shown, a plurality of relief notches 250 are provided on the installation slideway 22, and the plurality of relief notches 250 are arranged in sequence along the length direction of the installation slideway 22; the relief notches 250 correspond to the pressing plates 24 one by one; the end of the pressing plate 24 away from the clamping position is located in the relief notch 250 and is detachably connected to the positioning strip 19.

[0084] Specifically, the U-shaped sealing strip 23 is located in the protective cover installation position 10 and engaged with the protective cover 106, so as to protect the edge of the protective cover 106 and reduce dust and other sundries from entering the accommodation space 9 through the gaps of the protective cover bracket 104. One end of the pressing plate 24 is engaged with the U-shaped sealing strip 23 through the clamping position, and the other end of the pressing plate 24 is assembled in the relief notch 250 through a detachable connecting member (such as a screw, a bolt, etc.) and is detachably connected to the installation slideway 22. And since the positioning strip 19 is fixed on the protective cover bracket 104, the side of the protective cover 106 is positioned in the protective cover installation position 10 through the mutual cooperation among the pressing plate 24, the U-shaped sealing strip 23 and the positioning strip 19.

[0085] It should be noted that the detachable connection between the pressure plate 24 and the positioning bar 19 in the clearance notch 250 will not cause adverse interference to the installation of the slide bar 20, that is, the surface of the detachable connection between the pressure plate 24 and the positioning bar 19 is flush with the bottom surface of the installation slide 22, or even lower than the bottom surface of the installation slide 22, to ensure that even if the pressure plate 24 is connected to the positioning bar 19, the slide bar 20 can slide smoothly into the installation slide 22.

[0086] like Figure 6 As shown, a second U-shaped sealing strip 25 is provided on the side of the protective cover 106 opposite to the U-shaped sealing strip 23. The second U-shaped sealing strip 25 is symmetrically arranged with the U-shaped sealing strip 23 and is tightly engaged with the protective cover 106. Figure 6 and Figure 8 As shown, a U-shaped limiting space 26 is further provided on the protective cover bracket 104 corresponding to the protective cover installation position 10 , and the second U-shaped sealing strip 25 is engaged in the U-shaped limiting space 26 , thereby positioning the other side of the protective cover 106 in the protective cover installation position 10 .

[0087] like Figure 9 As shown, the lamp also includes: a plurality of stoppers 27, a plurality of threaded locking members 28 and a plurality of threaded connectors 29; the stoppers 27, the threaded locking members 28 and the threaded connectors 29 correspond to each other one by one and are used to realize a detachable connection between the mounting frame 101, the light source mounting plate 103 and the protective cover bracket 104.

[0088] Specifically, a plurality of stoppers 27 are arranged on the mounting frame 101 and are arranged in sequence along the length direction of the rail vehicle; the threaded locking members 28 correspond to the stoppers 27 one by one, and a plurality of threaded connectors 29 located in the stoppers 27 correspond to the threaded locking members 28 one by one; the threaded connectors 29 pass through the protective cover bracket 104 and the light source mounting plate 103 in sequence, and are threadedly connected with the threaded locking members 28. After one end of the threaded connector 29 passes through the protective cover bracket 104, the light source mounting plate 103 and the mounting frame 101 in sequence from bottom to top, it is inserted into the stopper 27 and is threadedly connected with the threaded locking members 28, so that the assembly port 8 can be closed. When the threaded connector 29 is removed from the threaded locking members 28, the assembly port 8 is opened. The stopper 27 is used to limit the position of the threaded locking member 28 , so that when the threaded connector 29 is rotated upward and inserted into the threaded locking member 28 , the threaded locking member 28 can cooperate with the threaded connector 29 to be tightened.

[0089] In an embodiment of the present invention, the stopper 27 is located within the receiving space 11 and is fixedly disposed above the inner buckle plate 13; the threaded connecting member 29 sequentially passes through the second extension plate 15, the first extension plate 14, and the inner buckle plate 13, and is threadedly connected to the threaded locking member 28.

[0090] As Figure 10 shown, the stopper 27 includes a baffle 271, a plurality of limiting pieces 272, and at least two U-shaped limiting members 273; a connecting member through hole 274 is provided on the baffle 271, and the connecting member through hole 274 corresponds to the threaded locking member 28 and is used for receiving the threaded connecting member 29; the plurality of limiting pieces 272 are disposed around the baffle 271 and are bent downward to form a receiving cavity 270 in cooperation with the baffle 271; the threaded locking member 28 is located within the receiving cavity 270; the U-shaped limiting members 273 are disposed on the limiting pieces 272; the side walls of the U-shaped limiting members 273 are recessed into the receiving cavity 270 and are disposed opposite to the baffle 271 to limit the threaded locking member 28.

[0091] Specifically, the baffle 271 is located above the inner buckle plate 13 and is disposed opposite to the inner buckle plate 13; a connecting member through hole 274 is further provided at the center of the baffle 271 for the threaded connecting member 29 to pass through the connecting member through hole 274 when connecting to the threaded locking member 28.

[0092] In an embodiment of the present invention, there are 4 limiting pieces 272, and they are disposed in pairs opposite to each other; the limiting pieces 272 are bent toward the inner buckle plate 13 to limit the threaded locking member 28 in the circumferential direction of the threaded locking member 28. The threaded connecting member 29 is a screw or a bolt, the threaded locking member 28 includes a nut, and at least 4 anti-slip planes are provided on the circumferential surface of the threaded locking member 28, and the anti-slip planes are in one-to-one correspondence with the limiting pieces 272, so as to prevent the threaded locking member 28 from rotating with the threaded connecting member 29 when connected to the threaded connecting member 29, resulting in an unsuccessful connection.

[0093] There are two U-shaped limit members 273, which are arranged on two relatively arranged limit pieces 272; the two U-shaped limit members 273 are arranged in a mirror image. The opening of the U-shaped limit member 273 is arranged radially outward along the threaded locking member 28, and the side wall of the U-shaped limit member 273 is recessed into the accommodation cavity 270 relative to the limit piece 272 and is arranged opposite to the baffle 271, so as to cooperate with the baffle 271 and limit the threaded locking member 28 axially. Therefore, through the anti-rotation limit of the threaded locking member 28 by the limit piece 272 along the circumferential direction of the threaded locking member 28 and the axial limit of the threaded locking member 28 by the cooperation of the U-shaped limit member 273 and the baffle 271, when the threaded connecting member 29 is inserted upward into the threaded locking member 28 and rotated, the threaded connection between the two can be successfully completed.

[0094] In an embodiment of the present invention, as Figure 1 and Figure 12 shown, the second engaging structure 3 includes: a horizontal portion 301, a vertical portion 302, and a first hook 303; the horizontal portion 301, the vertical portion 302, and the first hook 303 are connected in sequence, and the first hook 303 is arranged opposite to the horizontal portion 301. The vertical portion 302 is used for the side wall of the U-shaped cavity 6, and the horizontal portion 301 is used to fit with the top 100 of the rail vehicle and is detachably connected to the top 100 of the rail vehicle by screws or bolts, etc. As Figure 12As shown, an extension part 30, a support part 31 and a clamping part 32 are provided on the top 100 of the rail vehicle. One end of the extension part 30 is connected to the top 100 of the rail vehicle, and the other end extends downward and obliquely towards the first hook 303; the support part 31 is connected to the extension part 30 and extends below the horizontal part 301. A V-shaped elastic member 33 is provided above the support part 31. When the horizontal part 301 is connected to the top 100 of the rail vehicle, the horizontal part 301 presses the V-shaped elastic member 33, so that the top force of the V-shaped elastic member 33 on the horizontal part 301 is used to further improve the assembly stability of the second clamping structure 3 on the rail vehicle. The clamping part 32 is provided with a second hook 34 and a holding member 35. The clamping part 32 is located below the support part 31. One end of the clamping part 32 is connected to the extension part 30, and the other end extends horizontally towards the second clamping structure 3; the second hook 34 is used to engage with the first hook 303, and the holding member 35 is located at one end of the clamping part 32 away from the extension part 30 and is used to hold the first hook 303. An accommodating groove 36 with an opening is formed by enclosing the clamping part 32, the second hook 34 and the holding member 35. When installing the second clamping structure 3, the first hook 303 is inserted into the accommodating groove 36 from the opening. At the same time, the horizontal part 301 is inserted above the support part 31 and gradually presses the V-shaped elastic member 33 until the first hook 303 engages with the second hook 34 and the holding member 35 holds and supports the first hook 303. Then, the horizontal part 301 is connected to the top 100 of the rail vehicle by screws or bolts, etc., and the installation and positioning of the second clamping structure 3 can be realized. It can be understood that a plurality of assembly notches 37 (such as Figure 4 as shown) are provided on both the clamping part 32 and the first hook 303 for screws or bolts to pass through to fix the horizontal part 301.

[0095] The present invention also provides a rail vehicle, which includes the lamp as described in any one of the above.

[0096] In summary, the present invention provides a lighting fixture and a rail vehicle. The lighting fixture includes: a lighting fixture body, a first engaging structure, a second engaging mechanism, an annular cavity damping structure, and an extension arm. The first engaging structure is located on one side of the lighting fixture body and is used for assembling with the side wall of the rail vehicle. The second engaging structure is located on the other side of the lighting fixture body and is used for assembling with the top of the rail vehicle. The annular cavity damping structure is disposed between the lighting fixture body and the first engaging structure. One end of the extension arm is connected to the bottom of the lighting fixture body, and the other end of the extension arm is connected to the bottom of the second engaging structure, so as to form a U-shaped cavity with an upward opening together with the lighting fixture body and the second engaging structure. In the present invention, damping structures are additionally provided between the lighting fixture body and the first engaging structure, and between the lighting fixture body and the second engaging structure, realizing isolation and buffering between the lighting fixture body and the first engaging structure and the second engaging structure, thereby damping the lighting fixture body and improving the stability of the overall assembly of the lighting fixture. At the same time, based on the fact that when the lighting fixture is inclined and installed at the top corner of the rail vehicle, the vibration received by the lighting fixture body in the direction close to the side wall of the rail vehicle is stronger, and the vibration received by the lighting fixture body in the direction close to the top of the rail vehicle is relatively weaker. Different damping structures are respectively provided between the lighting fixture body and the first engaging structure, and between the lighting fixture body and the second engaging structure, so that while the annular cavity damping structure buffers, the closed-loop structure wall surface can help with damping and provide additional support, thereby effectively dispersing the vibration and reducing the impact on the lighting fixture body. And an extension arm is designed between the lighting fixture body and the second engaging structure, so as to form the U-shaped cavity between the lighting fixture body and the second engaging structure. The opening of the U-shaped cavity is arranged upward. The U-shaped cavity does not have a top, but instead, through an open design, more cavity space can be used to further disperse the vibration and enhance the vibration absorption effect.

[0097] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description. All such improvements and transformations shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A lamp, comprising a lamp body, characterized in that: It also includes: A first engaging structure is located on one side of the lamp body and is used for assembling with the side wall of the rail vehicle; A second engaging structure is located at the other side of the lamp body and is used for assembly with the top of the rail vehicle; An annular cavity vibration reduction structure, disposed between the lamp body and the first engaging structure; An extension arm; one end of the extension arm is connected to the bottom of the lamp body, and the other end is connected to the bottom of the second clamping structure, so as to form a U-shaped cavity with an opening upward together with the lamp body and the second clamping structure; A plurality of multi-stage damping vibration reducing bodies are arranged in the annular cavity vibration reducing structure and arranged in an array; the multi-stage damping vibration reducing bodies are cylindrical; The multi-stage damping vibration reducing body comprises: A flexible vibration-damping layer, which is in contact with the bottom of the annular cavity vibration-damping structure; An elastic vibration-damping layer is arranged on top of the flexible vibration-damping layer; the elastic vibration-damping layer comprises a plurality of springs arranged in an array; A liquid damping layer is disposed on the top of the elastic vibration damping layer and is in contact with the top of the annular cavity vibration damping structure; The second engaging structure includes a horizontal portion, a vertical portion and a first hook; the horizontal portion, the vertical portion and the first hook are connected in sequence, and the first hook is arranged opposite to the horizontal portion; the vertical portion is used as the side wall of the U-shaped cavity, and the horizontal portion is used to fit with the top of the rail vehicle and is detachably connected to the top of the rail vehicle by screws or bolts; the top of the rail vehicle is provided with an extension portion, a support portion and a engaging portion, one end of the extension portion is connected to the top of the rail vehicle, and the other end is arranged downward and inclined toward the first hook; the support portion is connected to the extension portion and extends to the bottom of the horizontal portion; a V-shaped elastic member is provided above the support portion, and when the horizontal portion is connected to the top of the rail vehicle, the horizontal portion squeezes the V-shaped An elastic member; a second hook and a supporting member are provided on the engaging portion, the engaging portion is located below the supporting portion, one end of the engaging portion is connected to the extending portion, and the other end is horizontally extended toward the second engaging structure; the second hook is used to engage with the first hook, and the supporting member is located at one end of the engaging portion away from the extending portion, and is used to support the first hook; the engaging portion, the second hook and the supporting member together form a receiving groove with an opening; when the second engaging structure is installed, the first hook is inserted into the receiving groove from the opening, and the horizontal portion is inserted above the supporting portion, and the V-shaped elastic member is squeezed until the first hook engages with the second hook and the supporting member supports the first hook; The lamp body is used to be installed at the top corner of a rail vehicle, and the lamp body is arranged at an angle; the tops of the lamp body, the annular cavity vibration reduction structure and the second clamping structure are all flush and assembled with the top of the rail vehicle; the horizontal distance between the first clamping structure and the lamp body is smaller than the horizontal distance between the second clamping structure and the lamp body.

2. The lamp according to claim 1, characterized in that: The top of the annular cavity vibration damping structure is detachably connected to the top of the rail vehicle, and the bottom of the annular cavity vibration damping structure is connected to the first clamping structure; the bottom of the first clamping structure is provided with an installation opening, and the installation opening is used for assembly with the side wall of the rail vehicle.

3. The lamp according to claim 1, characterized in that: The lamp body comprises: A mounting frame, one side of which is connected to the annular cavity vibration reduction structure, and the other side of which is connected to the extension arm; a mounting opening is provided at the bottom of the mounting frame; A rotating shaft, located in the assembly opening and detachably connected to the mounting frame; A light source mounting plate, one side of which is used to be detachably connected to the mounting frame, and the other side of which is detachably connected to the rotating shaft and can be rotated relative to the rotating shaft to open and close the assembly port; A protective cover bracket is located below the light source mounting plate; one side of the protective cover bracket is rotatably connected to the rotating shaft, and the other side is detachably connected to the light source mounting plate and the mounting frame respectively; a receiving space is formed between the protective cover bracket and the light source mounting plate; a plurality of protective cover mounting positions are arranged on the protective cover bracket along the length direction; A light source is arranged on the light source mounting plate and is located in the accommodation space; A plurality of protective covers are matched with the protective cover installation positions in a one-to-one correspondence.

4. The lamp according to claim 3, characterized in that: It also includes: A positioning bar is located in the accommodating space and is arranged at the protective cover bracket close to the rotating shaft; a mounting slide is arranged on one side of the positioning bar close to the light source mounting plate; A slide bar, matched with the installation slideway; A gasket is arranged on the slide bar and is used to fit with the light source mounting plate.

5. The lamp according to claim 4, characterized in that: It also includes: A U-shaped sealing strip is located in the protective cover installation position and close to the positioning strip; a portion of the protective cover is located in the U-shaped sealing strip; A plurality of pressing plates; one end of each pressing plate has a snap-fit ​​position; a portion of each U-shaped sealing strip is located in the snap-fit ​​position; The installation slide is provided with a plurality of clearance notches, and the clearance notches correspond to the pressure plates one by one; one end of the pressure plate away from the engaging position is located in the clearance notch and is detachably connected to the positioning strip.

6. The lamp according to claim 3, characterized in that: A plurality of through holes are arranged on the top of the mounting frame, and the through holes correspond to the light source mounting plate; when the assembly opening is opened, the assembly opening is communicated with the through holes.

7. The lamp according to claim 3, characterized in that: It also includes: A plurality of stoppers are disposed on the mounting frame; A plurality of thread locking members; the thread locking members correspond to the stop members one by one and are located inside the stop members; A plurality of threaded connectors correspond to the threaded locking components one by one; the threaded connectors sequentially pass through the protective cover bracket and the light source mounting plate and are threadedly connected with the threaded locking components.

8. The lamp according to claim 7, characterized in that: The stopper comprises: baffle; the baffle is provided with a connecting member through hole, the connecting member through hole corresponds to the threaded locking member and is used to accommodate the threaded connecting member; A plurality of limiting pieces are arranged around the baffle plate and bent downward to enclose the baffle plate to form a receiving cavity; the threaded locking piece is located in the receiving cavity; At least two U-shaped limiting members are arranged on the limiting plate; the side walls of the U-shaped limiting members are recessed into the accommodating cavity and are arranged opposite to the baffle to limit the threaded locking member.

9. A rail vehicle, characterized in that: It comprises the lamp as described in any one of claims 1-8.

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