CN220623857U

CN220623857U - Lighting lamp and rail transit vehicle

Info

Publication number: CN220623857U
Application number: CN202322424507.7U
Authority: CN
Inventors: 杨艳; 范健
Original assignee: SHENZHEN LONGYUN LIGHTING ELECTRIC APPLIANCES CO Ltd
Current assignee: SHENZHEN LONGYUN LIGHTING ELECTRIC APPLIANCES CO Ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-03-19
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses a lighting lamp and a rail transit vehicle, wherein the lighting lamp comprises a lamp body, a light source plate assembly and a buckle, and a limit groove is formed in the lamp body; the light source plate assembly is assembled in the limit groove; the buckle is inserted in the limit groove, one side of the buckle is abutted with the side wall of the limit groove, and the other side of the buckle is abutted with the side wall of the light source plate assembly and used for abutting against the light source plate assembly. When the lighting lamp is assembled, one end of the light source plate assembly is completely clamped into the limit groove of the lamp body, and the other end of the light source plate assembly is abutted against the limit groove mainly through the buckle, so that the light source plate assembly cannot displace in the vertical direction, other staff are not required to hold the light source plate assembly, the light source plate assembly can be conveniently and rapidly installed, and the working efficiency is improved; when the light source plate assembly is detached, the buckle is moved to one side, away from the light source plate assembly, of a certain distance without any tool, and the light source plate assembly can be detached quickly.

Description

Lighting lamp and rail transit vehicle

Technical Field

The utility model relates to the technical field of track lamps, in particular to a lighting lamp and a track traffic vehicle.

Background

Along with the development of society and the improvement of living standard of people, the lighting equipment of various scenes is more and more diversified, and the requirements of people on the lighting lamp used in various scenes are also more and more high. Such as malls, jewelry exhibition halls, art halls, professional showcases, counters and the like, and track lamps are used as spot lamps in places where important illumination is required. The track lamp is a lamp which is arranged on a similar track and has an LED as a light emitting source, so that the track lamp is more energy-saving and environment-friendly, and the irradiation angle can be adjusted.

Track lights are typically mounted at high altitudes, so track lights that are convenient to assemble are typically selected. For example, chinese patent application No. 202222761870.3 discloses an illumination-range-adjustable LED track lamp, and the specification describes that an inner cavity of a mounting seat is provided with a fixing mechanism, and the fixing mechanism includes a first threaded rod, so that the mounting seat is stably fixed with the outside.

However, the existing light source plate assembly is fixed by adopting screws when being installed with the lamp body, and a threaded hole is required to be machined on the lamp body, so that the manufacturing cost is high, the operation is complex, and the assembly time is long; when the light source plate component is dismounted, the tool is needed, so that the light source plate component is inconvenient to replace quickly.

Accordingly, the prior art is still in need of improvement and development.

Disclosure of Invention

In view of the defects in the prior art, the utility model aims to provide a lighting lamp and a rail transit vehicle, and aims to solve the problems that an existing light source plate assembly is fixed by adopting screws when being installed with a lamp body, and a threaded hole is required to be machined in the lamp body, so that the manufacturing cost is high, the operation is complicated, and the assembly time is long; when the light source plate component is dismounted, the tool is needed, so that the problem of quickly replacing the light source plate component is solved.

The technical scheme of the utility model is as follows:

the lighting lamp comprises a lamp body, a light source plate assembly and a buckle, wherein a limit groove is formed in the lamp body; the light source plate assembly is assembled in the limit groove; the buckle is inserted in the limit groove, one side of the buckle is abutted with the side wall of the limit groove, and the other side of the buckle is abutted with the side wall of the light source plate assembly and used for abutting against the light source plate assembly.

The lighting lamp is characterized in that a plurality of light source plate assemblies are arranged, and the light source plate assemblies are linearly arranged in the limiting groove; the appearance of the buckle is in a convex shape, the vertical part of the buckle is inserted into the gap of the adjacent light source plate assembly, and the transverse part of the buckle is inserted into the limit groove to be abutted with the light source plate assembly.

The lighting lamp comprises a light source plate assembly, a limiting groove, a first limiting block and a second limiting block, wherein the two sides of the notch of the limiting groove are respectively provided with a first limiting block and a second limiting block in a protruding mode, an inserting port is formed between the first limiting block and the second limiting block, and the width of the inserting port is smaller than that of the light source plate assembly; the limiting groove comprises a containing cavity and an installing cavity, wherein the containing cavity is communicated with the inserting port and is used for containing the light source plate assembly; the mounting cavity is arranged on one side of the accommodating cavity away from the insertion port and is communicated with the accommodating cavity; when the light source plate assembly is installed, at least part of the light source plate assembly is obliquely inserted into the installation cavity from the insertion port; and when the light source plate assembly completely enters the accommodating cavity and the mounting cavity, part of the light source plate assembly arranged in the mounting cavity can rotate into the accommodating cavity.

The lighting lamp is characterized in that the mounting cavity and the second limiting block are arranged on the same side, and the width value of the mounting cavity is smaller than that of the accommodating cavity.

The lighting lamp further comprises a lamp shade, wherein the lamp shade is connected with the lamp body and forms an installation cavity with the lamp body in a surrounding mode, and the installation cavity is communicated with the limiting groove.

The lamp body comprises a surrounding part and an installation part, two grooves are symmetrically formed in two sides of the surrounding part, and two end parts of the lampshade are respectively clamped in the grooves; the installation part is convexly arranged at the central position of the enclosing part, the installation cavity is divided into a left cavity and a right cavity, one limiting groove is formed in the direction of the installation part towards the left cavity, and the other limiting groove is formed in the direction of the installation part towards the right cavity.

The cross section of the lampshade is arc-shaped.

The lighting lamp comprises a surrounding part and an installing part, wherein the surrounding part and the installing part are integrally formed.

The lighting lamp is characterized in that the buckle is one of a polycarbonate buckle, an acrylonitrile-butadiene-styrene buckle and a polyethylene terephthalate-1, 4-cyclohexanedimethanol ester buckle.

The application also discloses a rail transit vehicle, wherein, including connector and arbitrary the illumination lamps and lanterns as above, the connector with illumination lamps and lanterns electric connection.

Compared with the prior art, the embodiment of the utility model has the following advantages:

when the lighting lamp disclosed by the utility model is assembled, one end of the light source plate assembly is completely clamped into the limit groove of the lamp body, and the other end of the light source plate assembly is abutted against the limit groove mainly through the buckle, so that the light source plate assembly cannot displace in the vertical direction. The lighting lamp disclosed by the utility model is assembled on the lamp body by driving screws into the light source plate assembly without processing threaded holes on the lamp body. During installation, other personnel do not need to hold the assistance, so that the light source plate assembly can be conveniently and rapidly installed, and the working efficiency is improved;

when the lighting lamp disclosed by the utility model is disassembled, the buckle is moved to one side deviating from the light source plate assembly by a certain distance, the light source plate assembly can rotate in the limiting groove, an operator can manually disassemble the light source plate assembly, and the operator can quickly replace the light source plate assembly without using tools.

The illumination lamp disclosed by the utility model is used for rail transit vehicles, is arranged on the connector and is electrically connected with the connector, so that illumination of the illumination lamp is realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic diagram of a lighting fixture of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an exploded view of the structure of the lighting lamp of the present utility model;

FIG. 4 is a schematic view of the structure of FIG. 2 at another angle;

FIG. 5 is a schematic view illustrating an assembly of a lighting device according to the present utility model;

FIG. 6 is a schematic view of a light source board assembly and a buckle according to the present utility model;

FIG. 7 is a partial enlarged view at B in FIG. 6;

fig. 8 is an assembly view of the lighting fixture of the present utility model.

10, a lighting lamp; 11. a lamp body; 111. a limit groove; 1111. a housing chamber; 1112. a mounting cavity; 112. a first limiting block; 113. a second limiting block; 114. an insertion port; 115. a surrounding part; 1151. a groove; 116. a mounting part; 12. a light source board assembly; 13. a buckle; 14. a lamp shade; 141. installing a cavity; 1411. a left chamber; 1412. a right chamber; 20. a connector.

Detailed Description

In order to make the present utility model better understood by those skilled in the art, the following description will make clear and complete descriptions of the technical solutions of the embodiments of the present utility model with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the prior art, the LED light source is adopted in the railway vehicle lighting lamp, the light source plate assembly is fixed on the lamp body through the screw, the lamp body is required to have enough space in the fixing mode, the threaded hole is processed on the lamp body, the light source plate assembly is fixed on the lamp body through the screw, and the production cost and the assembly difficulty are increased through the screw fixing mode.

Referring to fig. 1, 2 and 3, in an embodiment of the present application, a lighting fixture 10 is disclosed, wherein the lighting fixture 10 includes a lamp body 11, a light source board assembly 12 and a buckle 13, and a limit groove 111 is provided on the lamp body 11; the light source plate assembly 12 is assembled in the limit groove 111; the buckle 13 is inserted into the limit groove 111, one side of the buckle 13 abuts against the side wall of the limit groove 111, and the other side abuts against the side wall of the light source plate assembly 12, so as to tightly abut against the light source plate assembly 12.

When the lighting lamp 10 disclosed in this embodiment is assembled, one end of the light source plate assembly 12 is completely clamped into the limiting groove 111 of the lamp body 11, and the other end mainly abuts against the light source plate and the limiting groove 111 through the buckle 13, so that the light source plate assembly 12 cannot displace in the vertical direction. The lighting lamp 10 disclosed by the utility model is assembled on the lamp body 11 by driving screws into the light source plate assembly 12 without machining threaded holes in the lamp body 11. During installation, other personnel do not need to hold the assistance, the installation of the light source plate assembly 12 is simplified, and the working efficiency is improved.

When the lighting lamp 10 disclosed in this embodiment is disassembled, the buckle 13 is moved to a certain distance away from one side of the light source plate assembly 12, the light source plate assembly 12 can rotate in the limiting groove 111, an operator can manually disassemble the light source plate assembly 12, and the operator can quickly replace the light source plate assembly 12 without using tools when disassembling the light source plate assembly 12.

One side of the buckle 13 disclosed in the embodiment is abutted against the side wall of the limit groove 111, and the other side is abutted against the side wall of the light source plate assembly 12, so that a stable and reliable fixing effect is provided by abutting against the light source plate assembly 12, and the light source plate assembly 12 is ensured not to loosen in the use process after being assembled.

Specifically, the lighting fixture 10 disclosed in this embodiment can realize multi-angle light emission, and only the limiting groove 111 is required to be arranged at the angle at which the lamp body 11 needs to emit light, so that the adapted light source plate assembly 12 and the buckle 13 can be inserted to complete assembly, and the application scene is wider.

As shown in fig. 3, 4 and 5, as another implementation manner of the present embodiment, two sides of the notch of the limiting groove 111 are respectively provided with a first limiting block 112 and a second limiting block 113 in a protruding manner, and an insertion port 114 is formed between the first limiting block 112 and the second limiting block 113. When the light source board assembly is mounted, the operator obliquely inserts the light source board assembly 12 into the insertion port 114 because the width of the insertion port 114 is smaller than the width of the light source board assembly 12.

Specifically, the limiting groove 111 in the present embodiment includes a receiving cavity 1111 and a mounting cavity 1112, where the receiving cavity 1111 communicates with the insertion port 114, and is configured to receive the light source board assembly 12; the installation cavity 1112 is arranged at one side of the containing cavity 1111 away from the insertion port 114 and is communicated with the containing cavity 1111; when the light source board assembly 12 is mounted, at least part of the light source board assembly 12 is inserted obliquely from the insertion port 114 into the mounting cavity 1112; and, the width of the receiving chamber 1111 is larger than the width of the light source board assembly 12, the mounting chamber 1112 is communicated with the receiving chamber 1111, the portion of the light source board assembly 12 inserted therein has a larger moving space, and when the light source board assembly 12 completely enters the receiving chamber 1111 and the mounting chamber 1112, the portion of the light source board assembly 12 placed in the mounting chamber 1112 can be rotated into the receiving chamber 1111.

Specifically, in this embodiment, the first limiting block 112 is disposed at the notch of the accommodating cavity 1111, the second limiting block 113 is disposed at the notch of the accommodating cavity 1111 corresponding to the mounting cavity 1112, that is, the mounting cavity 1112 and the second limiting block 113 are disposed on the same side, and the size of the second limiting block 113 is larger than that of the first limiting block 112, so that the abutting effect of the buckle 13 disposed in the limiting groove 111 is better, and the buckle cannot easily fall off from the limiting groove 111.

As shown in fig. 5, the portion of the light source board assembly 12 disposed in the mounting cavity 1112 may be rotated into the accommodating cavity 1111, so that the portion of the light source board assembly 12 not inserted into the accommodating cavity 1111 is disposed, two sides of the notch of the limiting groove 111 are respectively provided with a first limiting block 112 and a second limiting block 113 in a protruding manner, and the first limiting block 112 and the second limiting block 113 can limit the light source board assembly 12 to move in a direction away from the lamp body 11. Because the width of the light source plate assembly 12 is smaller than the width of the accommodating cavity 1111, the light source plate assembly 12 is pushed to move in the accommodating cavity 1111 to a position far away from one end of the mounting cavity 1112, an operator inserts the buckle 13 into one end of the limit groove 111, and the buckle 13 abuts against the side walls of the light source plate assembly 12 and the limit groove 111, so that the light source plate assembly 12 cannot move up and down, and the light source plate assembly 12 is mounted.

It can be seen that, compared with the lamp body 11 only provided with the accommodating cavity 1111, the scheme disclosed in the embodiment can not limit the installation position, the plurality of linearly arranged light source plate assemblies 12 can be installed or detached from any one of the light source plate assemblies 12, and the lamp body 11 only provided with the accommodating cavity 1111 can only be inserted into the light source plate assemblies 12 from the end portion one by one, so that the scheme disclosed in the embodiment is more flexible in assembly mode.

Specifically, in another implementation manner of this embodiment, the mounting cavity 1112 is disposed adjacent to one end of the accommodating cavity 1111, and the width of the mounting cavity 1112 is smaller than the width of the accommodating cavity 1111, so that the end of the light source board assembly 12 can be better rotated into the accommodating cavity 1111 after being inserted into the mounting cavity 1112, and the light source board assembly 12 can be stably clamped in the accommodating cavity 1111 after being rotated into the accommodating cavity 1111 due to the width of the mounting cavity 1112 smaller than the width of the accommodating cavity 1111.

Specifically, the accommodating cavity 1111 and the mounting cavity 1112 are provided in the present embodiment, which makes full use of the limited space of the lamp body 11, and provides more design options for the lighting fixture 10 with a small size space.

As shown in fig. 1, 3 and 4, as another implementation manner of the present embodiment, the lighting fixture 10 is disclosed to further include a lampshade 14, where the lampshade 14 can play a role of shielding the light source and adjusting the brightness and direction of the light, so that the lighting fixture 10 has a better aesthetic effect.

Specifically, in this embodiment, the lampshade 14 is connected to the lamp body 11, and the tight connection between the lampshade 14 and the lamp body 11 makes the overall appearance of the lighting fixture 10 more uniform and beautiful. The lamp shade 14 with lamp body 11 encloses and closes and form the installation cavity 141, the installation cavity 141 with spacing groove 111 intercommunication avoids people direct contact light source board subassembly 12, reduces the risk of electric shock and burn, prevents that light source board subassembly 12 from accidentally taking off and smash the injury personnel behind the spacing groove 111, has improved the security of illumination lamps and lanterns 10.

Specifically, the lamp housing 14 in this embodiment can protect the light source board assembly 12 from being polluted and damaged by the external environment, and prolong the service life of the light source board assembly 12.

Specifically, in another implementation manner of the present embodiment, the lamp body 11 includes a surrounding portion 115 and an installation portion 116, two grooves 1151 are symmetrically disposed on two sides of the surrounding portion 115, and two ends of the lampshade 14 are respectively engaged in the grooves 1151; thereby fixing the lamp housing 14 and the lamp body 11 and improving the stability and safety of the lighting fixture 10.

The enclosing portion 115, the mounting portion 116, the first limiting block 112 and the second limiting block 113 disclosed in this embodiment are integrally formed, so that the lamp body 11 has a certain firmness, unnecessary gaps between structures are reduced, and the overall stability of the lighting lamp 10 is facilitated.

Specifically, in another implementation manner of this embodiment, the cross section of the lamp shade 14 is circular arc, the end portions of the lamp shade 14 are respectively provided with a protruding structure, the protruding structures are clamped in the grooves 1151, the connection area can be increased due to the clamping design of the protruding structures and the grooves 1151, the connection stability between the lamp shade 14 and the lamp body 11 is improved, the falling of the lamp shade 14 caused by shaking due to external force is avoided, and the installation of the lamp shade 14 is simpler, more convenient and quicker.

The mounting portion 116 disclosed in this embodiment is convexly disposed at the center of the enclosing portion 115, so as to divide the mounting cavity 141 into a left cavity 1411 and a right cavity 1412, one of the limiting grooves 111 is disposed in the direction of the mounting portion 116 facing the left cavity 1411, another of the limiting grooves 111 is disposed in the direction of the mounting portion 116 facing the right cavity 1412, that is, two sets of light source board assemblies 12 may be inserted into the limiting grooves 111 on the left and right sides, and emit light to two sides, so that the narrow space of the lamp body 11 is utilized to realize multi-angle light emission, and the light source board is suitable for places with relatively large requirements on the light emitting surface.

As shown in fig. 6 and fig. 7, as another implementation manner of this embodiment, the light source plate assemblies 12 are provided with a plurality of light source plate assemblies 12, and the plurality of light source plate assemblies 12 are linearly arranged in the limiting groove 111, and the adjacent light source plate assemblies 12 are electrically connected, so that the plurality of light source plate assemblies 12 can form a longer illumination surface, thereby increasing the illumination range and brightness of the illumination lamp 10.

Specifically, in actual use, the light source board assembly 12 disclosed in this embodiment can be set to a length according to the requirement, and the light source board assembly 12 with a fixed through length is not required.

Specifically, in this embodiment, the light source board assembly 12 is disclosed as a rectangular light source board assembly 12, and convex boards are disposed on two lateral sides of the rectangular light source board assembly 12 and are used for electrically connecting with adjacent light source board assemblies 12.

Specifically, in this embodiment, the shape of the buckle 13 is disclosed as a convex shape, the vertical portion of the buckle 13 is inserted into the gap between the adjacent light source board assemblies 12, and the lateral portion of the buckle 13 is inserted into the limiting groove 111 to abut against the light source board assemblies 12. The transverse part of the buckle 13 is divided into a left part and a right part, and one buckle 13 can be abutted against two adjacent light source plate assemblies 12 to provide a stable abutting effect for the adjacent light source plate assemblies 12.

It can be seen that, compared with the existing screw fixation, each light source plate needs at least 2 screws for locking, but by adopting the scheme of this embodiment, the N light source plate assemblies 12 can be firmly assembled only by using n+1 buckles 13.

Specifically, the light source board assembly 12 disclosed in this embodiment includes a PCB board and a plurality of LED lamp beads, a plurality of the LED lamp beads are uniformly and transversely arranged on the PCB board, and the LED lamp beads are energy-saving and environment-friendly, and have a long service life.

Specifically, in this embodiment, the light source board assembly 12 is fixed by using the separate component buckle 13, so that the PCB board of the light source board assembly 12 is easier to design, the wiring avoidance fixing hole is not required to be considered, and the creepage safety distance is larger.

Specifically, in this embodiment, the buckle 13 is disclosed as one of a polycarbonate buckle, an acrylonitrile-butadiene-styrene buckle, and a polyethylene terephthalate-1, 4-cyclohexanedimethanol buckle; the buckle 13 made of the material has wide use temperature range, low forming shrinkage, good dimensional stability and small and light structure, and the buckle 13 is used for replacing a screw structure, so that the weight of the lighting lamp 10 can be properly reduced, and the bearing capacity of the shell of the lighting lamp 10 can be reduced.

It should be noted that, in the present embodiment, the fastening material is only exemplified, but the protection scope of the present utility model is not limited thereto, and other fastening materials can achieve the technical effects disclosed in the present application, and the equivalents of the concept of the present utility model should be considered as well within the protection scope of the present application.

Specifically, in another implementation manner of this embodiment, the dimensions of the components of the lighting fixture 10 may be set according to actual requirements, and the following illustrates a design case: the lighting lamp 10 comprises three light source plate assemblies 12 which are linearly arranged, wherein the transverse length of each light source plate assembly 12 is 377.2mm, the gap between the adjacent light source plate assemblies is 0.9mm, the buckle 13 is made of PC material with the thickness of 1.2mm, the overall transverse length is 11.2mm, the overall longitudinal height is 4mm, the transverse length of the bulge is 1.8mm, the longitudinal height of the transverse part is 1.8mm, and the inner diameter of the arc lampshade 14 is 26mm; the width of the accommodating cavity 1111 is 4mm greater than that of the light source board assembly 12, the height of the protrusion of the first limiting block 112 is 2.5mm, and the height of the protrusion of the second limiting block 113 is 5mm.

Referring to fig. 8, as another embodiment of the present application, a rail transit vehicle is disclosed, which includes a connector 20 and the lighting lamp 10 as described in any one of the above, the lighting lamp 10 is installed in the connector 20, the lighting lamp 10 is electrically connected with the connector 20, so that the installation and maintenance process is simplified, and if the lighting lamp 10 has a loss, the lighting lamp 10 can be directly detached and replaced.

To sum up, the application discloses a lighting lamp 10, when the equipment, with the one end of light source board subassembly 12 card completely go into the spacing groove 111 of lamp body 11, the other end is mainly supported tight with light source board and spacing groove 111 through buckle 13 to make light source board subassembly 12 can not take place the displacement in the vertical direction. The lighting lamp 10 disclosed by the utility model is assembled on the lamp body 11 by driving screws into the light source plate assembly 12 without machining threaded holes in the lamp body 11. During installation, the light source plate assembly 12 can be installed conveniently and quickly without the assistance of other personnel, and the working efficiency is improved;

the application discloses a lighting lamp 10 when dismantling, remove certain distance to the one side that deviates from light source board subassembly 12 with buckle 13, light source board subassembly 12 just can rotate in spacing groove 111, the operator manual dismantlement can, need not with the help of the instrument when dismantling light source board subassembly 12, the operator can change light source board subassembly 12 fast.

The illumination lamp 10 disclosed by the utility model is used in a rail transit vehicle, the illumination lamp 10 is arranged on the connector 20 and is electrically connected with the connector 20, so that illumination of the illumination lamp 10 is realized.

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.

It should be noted that the specific structure and working principle of the utility model are described by taking the lighting lamp as an example, but the application of the utility model is not limited by the lighting lamp, and the utility model can also be applied to the production and use of other similar workpieces.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A lighting fixture, the lighting fixture comprising:

the lamp body is provided with a limit groove;

the light source plate assembly is assembled in the limit groove;

the buckle is inserted in the limit groove, one side of the buckle is abutted with the side wall of the limit groove, and the other side of the buckle is abutted with the side wall of the light source plate assembly and used for abutting against the light source plate assembly.

2. The lighting fixture of claim 1, wherein the light source plate assembly is provided in a plurality of pieces, and the plurality of pieces of light source plate assemblies are linearly arranged in the limit groove; the appearance of the buckle is in a convex shape, the vertical part of the buckle is inserted into the gap of the adjacent light source plate assembly, and the transverse part of the buckle is inserted into the limit groove to be abutted with the light source plate assembly.

3. The lighting fixture of claim 1, wherein a first limit block and a second limit block are respectively arranged on two sides of a notch of the limit groove in a protruding manner, an insertion opening is formed between the first limit block and the second limit block, and the width of the insertion opening is smaller than that of the light source plate assembly; the limit groove comprises:

the accommodating cavity is communicated with the inserting port and is used for accommodating the light source plate assembly;

the mounting cavity is arranged on one side of the containing cavity away from the insertion port and is communicated with the containing cavity; when the light source plate assembly is installed, at least part of the light source plate assembly is obliquely inserted into the installation cavity from the insertion port; and when the light source plate assembly completely enters the accommodating cavity and the mounting cavity, part of the light source plate assembly arranged in the mounting cavity can rotate into the accommodating cavity.

4. A lighting fixture as recited in claim 3, wherein said mounting cavity and said second stop block are disposed on a same side, and wherein a width of said mounting cavity is less than a width of said receiving cavity.

5. The lighting fixture of claim 1, further comprising a lamp housing coupled to the lamp body and enclosing a mounting cavity with the lamp body, the mounting cavity in communication with the limiting groove.

6. A lighting fixture as recited in claim 5, wherein said lamp body comprises:

the two sides of the enclosing part are symmetrically provided with two grooves, and the two end parts of the lampshade are respectively clamped in the grooves;

the installation department, protruding the establishing enclose the central point who closes the department puts, will install the cavity and separate into left cavity and right cavity, the installation department orientation the direction of left cavity is provided with one the spacing groove, the installation department orientation the direction of right cavity is provided with another the spacing groove.

7. A lighting fixture as recited in claim 6, wherein said lamp housing has an arcuate cross-section.

8. A light fixture as recited in claim 6, wherein said enclosure portion and said mounting portion are integrally formed.

9. The lighting fixture of claim 1, wherein the clasp is one of a polycarbonate clasp, an acrylonitrile butadiene styrene clasp, and a polyethylene terephthalate-1, 4-cyclohexanedimethanol ester clasp.

10. A rail transit vehicle comprising a connector and a lighting fixture as claimed in any one of claims 1 to 9, the connector being electrically connected to the lighting fixture.