A cabin light

Abstract

The utility model discloses a cabin roof lamp, include: lamp shell, inside form cavity, the lamp shell bottom side around first sealing groove that is established with cavity, sealing strip, set up in first sealing groove, sealing strip surrounds cavity and extends, light source subassembly, set up in the cavity, lamp shade, top side and press in sealing strip, the lamp shade with lamp shell between set up fastener, fastener will lamp shade upward and press and make lamp shade's top side stretch into first sealing groove, the utility model effectively reduces the ponding at the junction of lamp shade and lamp shell, even if the negative pressure appears in lamp shell and inhales the air to the inside, can reduce the phenomenon of inhaling water pearl to lamp shell, improve the stability of whole work in the humid environment.

Description

Technical Field

[0001] This utility model relates to a lighting device, and more particularly to a cabin roof light. Background Technology

[0002] Dome lights are typically used in areas of ships where there is dripping, splashing, or condensation, such as engine rooms, dry cargo holds, shaft tunnels, pipework, and open decks. For dome lights installed in humid environments or locations requiring waterproofing, their sealing performance is crucial. Currently, some dome lights use a snap-fit ​​connection between the light emitter and the housing, a relatively simple structure that results in poor waterproofing. Some dome lights add a sealing gasket between the light emitter and the housing to improve the seal, but when the dome light operates for extended periods and is then turned off, internal temperature changes create negative pressure, which may draw in water accumulated outside the sealing ring, damaging internal electrical components. Therefore, there is an urgent need for a dome light with better sealing performance. Utility Model Content

[0003] The purpose of this utility model is to provide a cabin roof light to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The solution to the technical problem of this utility model is:

[0005] A cabin overhead light includes: a lamp housing with an internal cavity, a first sealing groove being provided around the cavity on the bottom side of the lamp housing; a sealing strip disposed in the first sealing groove and extending around the cavity; a light source assembly disposed in the cavity; and a lampshade with its top side pressing against the sealing strip, a fastener being provided between the lampshade and the lamp housing, the fastener pressing the lampshade upward and causing the top side of the lampshade to extend into the first sealing groove.

[0006] This technical solution has at least the following beneficial effects: The lamp housing has an internal cavity for housing electrical components such as wires. During assembly, the light source assembly is inserted into this cavity, and then the lampshade is connected to the lamp housing. Since a first sealing groove is provided around the cavity on the bottom side of the lamp housing, when connecting the lampshade and the lamp housing, the top side of the lampshade faces the first sealing groove. The top side of the lampshade abuts the sealing strip against the first sealing groove. Then, fasteners are used to press the lampshade upwards, causing the top side of the lampshade to extend into the first sealing groove. At this point, the sealing strip can be further elastically compressed, effectively filling the top side of the lampshade. The assembly gap between the lampshade and the first sealing groove, and the tortuous sealing structure formed between the top side of the lampshade and the first sealing groove, enhance the connection and sealing between the top side of the lampshade and the first sealing groove. When the cabin top light is working in a humid environment, if water vapor condenses into water droplets near the first sealing groove, since the groove opening of the first sealing groove faces downward, the water droplets can drip down along the side wall of the first sealing groove. This effectively reduces water accumulation at the connection between the lampshade and the lamp housing. Even if there is negative pressure inside the lamp housing and air is drawn inward, the phenomenon of water droplets being drawn into the lamp housing can be reduced, thus improving the overall stability of working in a humid environment.

[0007] As a further improvement to the above technical solution, a second sealing groove is provided on the top side of the lampshade, extending around the lampshade, and the bottom of the sealing strip is accommodated within the second sealing groove. The bottom of the sealing strip can be inserted into the second sealing groove on the top side of the lampshade, at which point a tortuous sealing structure is formed between the bottom of the sealing strip and the second sealing groove, enhancing the connection and sealing between the bottom of the sealing strip and the second sealing groove. Then, the top side of the lampshade, together with the sealing strip, is pressed into the first sealing groove, improving the overall assembly efficiency.

[0008] As a further improvement to the above technical solution, hollow channels are respectively provided at the top and bottom of the sealing strip. The top of the sealing strip is squeezed and elastically deformed in the first sealing groove, and the bottom of the sealing strip is squeezed and elastically deformed in the second sealing groove. Since hollow channels are provided at the top and bottom of the sealing strip, space can be provided to avoid the elastic deformation of the sealing strip, thereby enhancing the effect of the sealing strip being squeezed and deformed and tightly adhering to the inner walls of the first and second sealing grooves.

[0009] As a further improvement to the above technical solution, the fastener includes a latch connected to the outside of the lamp housing. A snap-fit ​​recess is provided on the outer top of the lampshade, surrounding the lampshade. The latch has a hook that can rotate in and out of the snap-fit ​​recess, and multiple latches are provided around the outside of the lamp housing. After pressing the top side of the lampshade into the first sealing groove, the hook on the latch is rotated so that it rotates into the snap-fit ​​recess. At this time, the hook is used to tighten and fix the lampshade at the snap-fit ​​recess position, preventing the lampshade from detaching from the lamp housing. By using multiple latches to tighten and fix the lampshade on the outside of the lamp housing, the lamp housing and the lampshade can be stably connected to each other.

[0010] As a further improvement to the above technical solution, the outer side of the lampshade is provided with multiple slots facing upwards. Multiple fasteners are respectively connected to fixing pieces, which are inserted into the slots. Multiple spring pieces are formed on each fixing piece, and these spring pieces press against the inner wall of the slot. Multiple slots for fixing the fasteners are provided on the outer side of the lampshade. When the fixing pieces on the fasteners are inserted into the slots, the spring pieces on the fixing pieces press against the inner wall of the slots, thus securing the fixing pieces tightly within the slots. Since there are multiple spring pieces on the fixing pieces, they can be pressed and secured within the slots at different positions, improving the stability of the fixing piece positioning. This allows the fasteners to be quickly fixed to the lamp housing, and the connection structure is stable and reliable.

[0011] As a further improvement to the above technical solution, the light source assembly includes a fixing plate and a lamp tube. The fixing plate is disposed within the cavity, and the lamp tube is connected to the bottom side of the fixing plate. A wiring sleeve is disposed on the outer side of the lamp housing above the fixing plate, and a wiring terminal is connected to the top side of the fixing plate. External wires can be led from the wiring sleeve into the cavity formed by the lamp housing. The wiring sleeve enhances the sealing of the wire connection to the lamp housing, reducing moisture ingress. The wires can be connected to the wiring terminal to power the lamp tube on the bottom side of the fixing plate, providing illumination through the lamp cover. The fixing plate provides a fixed mounting position for the lamp tube and also shields the wires within the cavity, preventing direct observation of the wires from the lamp cover.

[0012] As a further improvement to the above technical solution, the lamp housing is connected to a bracket on the top side of the cavity, and a snap-fit ​​component is connected to the bracket. The snap-fit ​​component includes a connecting section connected to the bottom side of the bracket and a snap-fit ​​connector connected to the bottom end of the connecting section. The outer diameter of the snap-fit ​​connector is larger than the outer diameter of the connecting section. The fixing plate is provided with a clearance hole and a snap-fit ​​hole corresponding to the position of the snap-fit ​​connector. The snap-fit ​​connector can pass through the clearance hole and snap-fit ​​onto the fixing plate at the position of the bottom side of the snap-fit ​​hole. During installation, bring the mounting plate close to the bracket so that the snap-fit ​​connector passes through the clearance hole on the mounting plate. Then slide the mounting plate so that the connecting section moves to the snap-fit ​​hole. At this time, the snap-fit ​​connector is located below the snap-fit ​​hole. Since the outer diameter of the snap-fit ​​connector is larger than the outer diameter of the connecting section, the snap-fit ​​section abuts against the bottom of the mounting plate at the snap-fit ​​hole, which can support the mounting plate and thus achieve the installation and positioning of the mounting plate. When it is necessary to remove the mounting plate, simply slide the mounting plate until the snap-fit ​​hole is directly opposite the snap-fit ​​connector. At this time, the mounting plate can be separated downwards. This improves the convenience of mounting and disassembling the mounting plate and helps to reduce the risk factor for workers when maintaining the dome light.

[0013] As a further improvement to the above technical solution, multiple brackets are provided along the length of the lamp housing, and multiple snap-fit ​​components are provided on each of the brackets along the width of the lamp housing. The multiple brackets can provide support points at different positions on the top side of the fixing plate, while the multiple snap-fit ​​components along the width of the lamp housing on the brackets can form connection points at different positions on the fixing plate. This improves the reliability of the fixing plate installation and effectively prevents the fixing plate from easily detaching from the brackets due to shaking.

[0014] As a further improvement to the above technical solution, the bracket and the fixing plate are respectively connected by a first connecting buckle, and a first pull rope is connected between the two first connecting buckles. When the fixing plate is removed from the bracket, the connection of the fixing plate with the first pull rope can prevent the fixing plate from falling directly from the bracket, thereby improving the safety during maintenance of the cabin ceiling light. It can also prevent the fixing plate from falling off and damaging the cabin ceiling light or causing injury to personnel inside the cabin after a long period of time, thus playing a secondary protection role. When it is necessary to completely remove the fixing plate, the first pull rope can be disconnected from either of the two first connecting buckles.

[0015] As a further improvement to the above technical solution, the lampshade and the lamp housing are respectively connected by a second connecting buckle, and a second pull rope is connected between the two second connecting buckles. When the lampshade is removed from the lamp housing, the connection of the lampshade to the lamp housing by the second pull rope can prevent the lampshade from falling directly from the lamp housing, thereby improving the safety of maintaining the cabin roof light. It can also prevent the lampshade from falling off and damaging the cabin roof light or causing injury to personnel inside the cabin after a long period of time, thus playing a secondary protection role. When it is necessary to completely remove the lampshade, the second pull rope can be disconnected from either of the two second connecting buckles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional view of the entire utility model.

[0018] Figure 2 This is an exploded structural diagram of the present invention.

[0019] Figure 3 yes Figure 2 A magnified view of part A.

[0020] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0021] Figure 5 yes Figure 4 A magnified view of part B.

[0022] In the attached diagram: 100-lamp housing, 110-cavity, 120-first sealing groove, 130-wiring sleeve, 140-bracket, 150-clamping piece, 151-connecting section, 152-clamping connector, 160-first connecting buckle, 170-second connecting buckle, 171-second pull rope, 200-sealing strip, 210-hollow channel, 300-lamp cover, 310-second sealing groove, 320-clamping concave angle, 330-slot, 400-fastener, 410-hook, 420-fixing piece, 421-spring piece, 510-fixing plate, 511-avoidance hole, 512-clamping hole, 520-lamp tube. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5A cabin overhead light includes a lamp housing 100, a sealing strip 200, a light source assembly, and a lamp shade 300. The lamp housing 100 has an interior cavity 110. A first sealing groove 120 is provided around the cavity 110 on the bottom side of the lamp housing 100. The sealing strip 200 is disposed within the first sealing groove 120 and extends around the cavity 110. In practical applications, the first sealing groove 120 is arranged around the entire bottom side of the lamp housing 100, and correspondingly, the sealing strip 200 is also arranged around the entire first sealing groove 120. The light source assembly is disposed within the cavity 110. The top side of the lamp shade 300 presses against the sealing strip 200. A fastener is provided between the lamp shade 300 and the lamp housing 100, and the fastener presses the lamp shade 300 upward, causing the top side of the lamp shade 300 to extend into the first sealing groove 120.

[0028] As described above, the lamp housing 100 has an internal cavity 110 for housing electrical components such as wires. During assembly, the light source assembly is inserted into the cavity 110, and then the lampshade 300 is connected to the lamp housing 100. Since the bottom side of the lamp housing 100 is provided with a first sealing groove 120 surrounding the cavity 110, when connecting the lampshade 300 to the lamp housing 100, the top side of the lampshade 300 is aligned with the first sealing groove 120. The top side of the lampshade 300 is used to press the sealing strip 200 against the first sealing groove 120. Then, the lampshade 300 is pressed upward with fasteners, so that the top side of the lampshade 300 extends into the first sealing groove 120. At this time, the sealing strip 200 can be further elastically compressed, effectively filling the groove. The assembly gap between the top side of the lampshade 300 and the first sealing groove 120, and the tortuous sealing structure formed between the top side of the lampshade 300 and the first sealing groove 120, enhance the connection sealing between the top side of the lampshade 300 and the first sealing groove 120. When the cabin top light is working in a humid environment, if water vapor condenses into water droplets near the first sealing groove 120, since the opening of the first sealing groove 120 faces downward, the water droplets can drip down along the side wall of the first sealing groove 120. This effectively reduces water accumulation at the connection between the lampshade 300 and the lamp housing 100. Even if a negative pressure occurs inside the lamp housing 100 and air is drawn inward, the phenomenon of water droplets being drawn into the lamp housing 100 can be reduced, improving the overall stability of working in a humid environment.

[0029] The position where the lampshade 300 abuts against the bottom side of the sealing strip 200 can be a flat surface, or the edge of the lampshade 300 can be used to press against the sealing strip 200. In this embodiment, a second sealing groove 310 is provided on the top side of the lampshade 300, and the second sealing groove 310 extends around the lampshade 300. The bottom of the sealing strip 200 is accommodated in the second sealing groove 310. The bottom of the sealing strip 200 can be inserted into the second sealing groove 310 on the top side of the lampshade 300. At this time, a tortuous sealing structure is formed between the bottom of the sealing strip 200 and the second sealing groove 310, which strengthens the connection and sealing between the bottom of the sealing strip 200 and the second sealing groove 310. Then, the top side of the lampshade 300 together with the sealing strip 200 is pressed into the first sealing groove 120, improving the overall assembly efficiency.

[0030] The sealing strip 200 itself has a certain degree of elasticity, allowing it to be compressed and deformed to fill the gaps at the connection points. The sealing strip 200 can be a solid structure, in which case its elastic deformation capacity is limited. Therefore, to further improve the elastic deformation effect of the sealing strip 200, in this embodiment, hollow channels 210 are respectively provided at the top and bottom of the sealing strip 200. The top of the sealing strip 200 is compressed and elastically deformed within the first sealing groove 120, and the bottom of the sealing strip 200 is compressed and elastically deformed within the second sealing groove 310. Because hollow channels 210 are provided at the top and bottom of the sealing strip 200, space is provided to allow for the elastic deformation of the sealing strip 200, thereby enhancing the effect of the sealing strip 200 being compressed and deformed and tightly adhering to the inner walls of the first sealing groove 120 and the second sealing groove 310. In practical applications, the sealing strip 200 can also be made of elastic materials such as silicone or silicone rubber.

[0031] Fasteners can be screws or other connectors. After the lampshade 300 and the lamp housing 100 are spliced ​​together, screws can be inserted between the lampshade 300 and the lamp housing 100 to lock them in place, thereby fixing the lampshade 300 and the lamp housing 100. In order to improve the convenience of installation, in this embodiment, the fastener includes a buckle 400 connected to the outside of the lamp housing 100. The top outer side of the lampshade 300 is provided with a snap-fit ​​concave angle 320, which surrounds the lampshade 300. The buckle 400 has a hook 410 that can rotate in and out of the snap-fit ​​concave angle 320. Multiple buckles 400 are provided around the outside of the lamp housing 100. After pressing the top side of the lampshade 300 into the first sealing groove 120, rotate the hook 410 on the latch 400 so that the hook 410 rotates into the snap-fit ​​concave angle 320. At this time, the latch 410 is used to hook and fix the position of the snap-fit ​​concave angle 320, which can prevent the lampshade 300 from coming off the lamp housing 100. In this way, by using multiple latches 400 to hook and fix the lampshade 300 on the outside of the lamp housing 100, the lamp housing 100 and the lampshade 300 can be stably connected to each other.

[0032] In practical applications, a snap-fit ​​block is provided on the top surface of the snap-fit ​​concave angle 320. The side of the snap-fit ​​block near the lampshade 300 extends downward at an angle away from the lampshade 300, thereby forming an area that gradually increases from top to bottom between the snap-fit ​​block and the lampshade 300. When the hook 410 of the latch 400 rotates to the snap-fit ​​concave angle 320, the hook 410 passes over the snap-fit ​​block and abuts against the inclined surface of the snap-fit ​​block, thereby hooking and fixing the lampshade 300. This can improve the stability of the mutual hooking and positioning of the lamp housing 100 and the lampshade 300.

[0033] Naturally, the latch 400 itself has a structure for fixing to the outside of the lamp housing 100, and the hook 410 is rotatably connected to the fixing structure. The fixing structure has various forms, such as a plate that is fastened to the outside of the lamp housing 100 by screws. In order to improve the convenience of installing and fixing the latch 400, in this embodiment, the outside of the lamp cover 300 is provided with a plurality of slots 330 with the slots facing upwards. The plurality of latches 400 are respectively connected to fixing pieces 420. The plurality of fixing pieces 420 are respectively inserted into the plurality of slots 330. The plurality of fixing pieces 420 are respectively formed with a plurality of spring pieces 421, and the plurality of spring pieces 421 abut against the inner sidewall of the slot 330. Multiple slots 330 for fixing the latches 400 are provided on the outside of the lampshade 300. The fixing pieces 420 on the multiple latches 400 are inserted into the slots 330 respectively. At this time, the spring pieces 421 on the fixing pieces 420 press against the inner side wall of the slot 330, so that the fixing pieces 420 are pressed and fixed in the slot 330. Since there are multiple spring pieces 421 on the fixing pieces 420, the fixing pieces 420 can be pressed and fixed in the slot 330 at different positions, improving the stability of the positioning of the fixing pieces 420. In this way, the latches 400 can be quickly fixed to the lamp housing 100, and the connection structure is stable and reliable.

[0034] In practical applications, the fixing plate 420 has an opening, and the spring piece 421 is formed at the position of the fixing plate 420 where the opening is located. The opening can provide clearance space for the elastic movement of the spring piece 421, which can reduce the thickness of the entire fixing plate 420 and ensure that the spring piece 421 presses against the inner wall of the slot 330, thereby providing the fixing plate 420 with positioning pressure against the inner side of the slot 330.

[0035] The light source assembly is mainly used to provide illumination. In this embodiment, the light source assembly includes a fixing plate 510 and a lamp tube 520. The fixing plate 510 is disposed in the cavity 110. The lamp tube 520 is connected to the bottom side of the fixing plate 510. A wiring sleeve 130 is provided on the outer side of the lamp housing 100 above the fixing plate 510. A wiring terminal is connected to the top side of the fixing plate 510. In practical applications, the fixing plate 510 can be a drive board, and the wiring terminal is connected to the drive board to directly power the lamp tube 520 installed on the bottom side of the drive board. Alternatively, the fixing plate 510 can be a regular plate, and wires can be connected from the wiring terminal to the lamp tube 520 to power the lamp tube 520. The external wiring can be led from the wiring sleeve 130 into the cavity 110 formed by the lamp housing 100. The wiring sleeve 130 can enhance the sealing of the wiring connection to the lamp housing 100, reducing the entry of moisture into the lamp housing 100. The wiring can be connected to the terminal block to supply power to the lamp tube 520 on the bottom side of the fixing plate 510. The lamp tube 520 provides lighting function through the lamp cover 300. The fixing plate 510 can provide a fixed position for the lamp tube 520 and can also shield the wiring in the cavity 110 to prevent the wiring in the cavity 110 from being directly observed from the lamp cover 300.

[0036] The mounting plate 510 can be directly connected to the inside of the lamp housing 100 using screws. To further improve the installation efficiency of the mounting plate 510, such as... Figure 3As shown, in this embodiment, the lamp housing 100 is connected to a bracket 140 on the top side of the cavity 110. A snap-fit ​​member 150 is connected to the bracket 140. The snap-fit ​​member 150 includes a connecting section 151 connected to the bottom side of the bracket 140 and a snap-fit ​​connector 152 connected to the bottom end of the connecting section 151. The outer diameter of the snap-fit ​​connector 152 is larger than the outer diameter of the connecting section 151. The fixing plate 510 is provided with a clearance hole 511 and a snap-fit ​​hole 512 corresponding to the position of the snap-fit ​​connector 152. The snap-fit ​​connector 152 can pass through the clearance hole 511 and snap-fit ​​onto the fixing plate 510 at the position of the bottom side of the snap-fit ​​hole 512. In practical applications, the snap-fit ​​member 150 can be a screw. In this case, the threaded part of the screw is the connecting section 151, and the head of the screw is the snap-fit ​​connector 152. During installation, the fixing plate 510 is brought close to the bracket 140, allowing the snap-fit ​​connector 152 to pass through the clearance hole 511 on the fixing plate 510. Then, the fixing plate 510 is slid to move the connecting section 151 to the snap-fit ​​hole 512. At this time, the snap-fit ​​connector 152 is located below the snap-fit ​​hole 512. Since the outer diameter of the snap-fit ​​connector 152 is larger than the outer diameter of the connecting section 151, the snap-fit ​​section abuts against the fixing plate 510 at the bottom side of the snap-fit ​​hole 512, which can support the fixing plate 510 and thus achieve the installation and positioning of the fixing plate 510. When it is necessary to remove the fixing plate 510, simply slide the fixing plate 510 until the snap-fit ​​hole 512 is directly opposite the snap-fit ​​connector 152. At this time, the fixing plate 510 can be separated downwards. This improves the convenience of installing and removing the fixing plate 510 and helps to reduce the risk factor for workers when maintaining the dome light.

[0037] The bracket 140 may be installed only at the middle position of the lamp housing 100. However, to improve the stability of the bracket 140 installation, in this embodiment, multiple brackets 140 are provided along the length of the lamp housing 100, and multiple snap-fit ​​pieces 150 are provided on each of the multiple brackets 140 along the width of the lamp housing 100. The multiple brackets 140 can provide support points at different positions on the top side of the fixing plate 510, and the multiple snap-fit ​​pieces 150 on the brackets 140 along the width of the lamp housing 100 can form connection points at different positions on the fixing plate 510. This improves the reliability of the fixing plate 510 installation and effectively prevents the fixing plate 510 from easily detaching from the bracket 140 due to shaking.

[0038] When the cabin overhead light is in operation, the fixing plate 510 may fall off due to unstable bolt installation, bolt breakage due to rust, or other reasons, causing damage to the cabin overhead light or personal injury. Therefore, in this embodiment, the bracket 140 and the fixing plate 510 are respectively connected by a first connecting buckle 160, and a first pull rope is connected between the two first connecting buckles 160. When the fixing plate 510 is removed from the bracket 140, the connection of the fixing plate 510 with the first pull rope can prevent the fixing plate 510 from falling directly from the bracket 140, thereby improving the safety during maintenance of the cabin overhead light. It can also prevent the fixing plate 510 from falling off and damaging the cabin overhead light or causing injury to personnel inside the cabin after a long period of time, thus playing a secondary protection role. When it is necessary to completely remove the fixing plate 510, the first pull rope can be disconnected from either of the two first connecting buckles 160.

[0039] When maintenance of the overhead light is required, the light-transmitting cover needs to be removed. The cover must be placed in a safe location to prevent it from falling and breaking. To improve ease of operation, the cover 300 and the lamp housing 100 are each connected by a second connecting buckle 170, and a second pull rope 171 connects the two second connecting buckles 170. When removing the cover 300 from the lamp housing 100, the second pull rope 171 prevents the cover 300 from falling directly from the lamp housing 100, thus improving safety during overhead light maintenance. It also prevents damage to the overhead light and injury to personnel inside the cabin from the cover 300 falling loosely over time, providing secondary protection. When the cover 300 needs to be completely removed, the second pull rope 171 can be disconnected from either of the two second connecting buckles 170.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cabin overhead light, characterized in that: include: The lamp housing (100) has a cavity (110) inside, and a first sealing groove (120) is provided around the cavity (110) on the bottom side of the lamp housing (100); A sealing strip (200) is disposed in the first sealing groove (120), and the sealing strip (200) extends around the cavity (110); A light source assembly is disposed within the cavity (110); The lampshade (300) presses against the sealing strip (200) on its top side. A fastener is provided between the lampshade (300) and the lamp housing (100). The fastener presses the lampshade (300) upward and causes the top side of the lampshade (300) to extend into the first sealing groove (120).

2. A cabin roof light according to claim 1, characterized in that: The top side of the lampshade (300) is provided with a second sealing groove (310), which extends around the lampshade (300), and the bottom of the sealing strip (200) is accommodated in the second sealing groove (310).

3. A cabin roof light according to claim 2, characterized in that: The top and bottom of the sealing strip (200) are respectively provided with hollow channels (210).

4. A cabin roof light according to claim 1, characterized in that: The fastener includes a latch (400) connected to the outside of the lamp housing (100), and a snap-fit ​​recess (320) is provided on the top outer side of the lamp shade (300). The snap-fit ​​recess (320) is arranged around the lamp shade (300). The latch (400) has a hook (410) that can rotate in and out of the snap-fit ​​recess (320). Multiple latches (400) are arranged around the outside of the lamp housing (100).

5. A cabin roof light according to claim 4, characterized in that: The lampshade (300) has multiple slots (330) with the slots facing upwards on its outer side. Multiple buckles (400) are respectively connected to fixing pieces (420). The multiple fixing pieces (420) are respectively inserted into the multiple slots (330). Multiple spring pieces (421) are formed on the multiple fixing pieces (420). The multiple spring pieces (421) are respectively pressed against the inner sidewall of the slot (330).

6. A cabin overhead light according to claim 1, characterized in that: The light source assembly includes a fixing plate (510) and a lamp tube (520). The fixing plate (510) is disposed in the cavity (110). The lamp tube (520) is connected to the bottom side of the fixing plate (510). A wiring sleeve (130) is provided on the outside of the lamp housing (100) above the fixing plate (510). A wiring terminal is connected to the top side of the fixing plate (510).

7. A cabin overhead light according to claim 6, characterized in that: The lamp housing (100) is located inside the cavity (110) and connected to the top side of the bracket (140). The bracket (140) is connected to a snap-fit ​​component (150). The snap-fit ​​component (150) includes a connecting section (151) connected to the bottom side of the bracket (140) and a snap-fit ​​connector (152) connected to the bottom end of the connecting section (151). The outer diameter of the snap-fit ​​connector (152) is larger than the outer diameter of the connecting section (151). The fixing plate (510) is provided with a clearance hole (511) and a snap-fit ​​hole (512) corresponding to the position of the snap-fit ​​connector (152). The snap-fit ​​connector (152) can pass through the clearance hole (511) and snap-fit ​​onto the fixing plate (510) at the position located on the bottom side of the snap-fit ​​hole (512).

8. A cabin roof light according to claim 7, characterized in that: The bracket (140) is provided in multiple ways along the length of the lamp housing (100), and each of the brackets (140) is provided with multiple snap-fit ​​pieces (150) along the width of the lamp housing (100).

9. A cabin roof light according to claim 7, characterized in that: The bracket (140) and the fixing plate (510) are respectively connected by a first connecting buckle (160), and a first pull rope is connected between the two first connecting buckles (160).

10. A cabin roof light according to claim 1, characterized in that: The lampshade (300) and the lamp housing (100) are respectively connected by a second connecting buckle (170), and a second pull rope (171) is connected between the two second connecting buckles (170).

Images