Illuminating device, connecting piece and multi-head illuminating device
By splicing multiple frames and connectors to form a multi-head frame, the problem of high mold opening cost for multi-head lighting devices is solved, achieving cost reduction and increased flexibility.
Patent Information
- Application Number
- CN202520352935.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In the existing technology, the high mold-making cost of multi-head lighting devices leads to high product costs.
Multiple frame shells are spliced together using detachable connectors to form a multi-head frame shell, reducing the need for mold opening for multi-head frame shells with different numbers of heads. Only single-head frame shells need to be molded and connectors need to be manufactured.
This reduces the product cost of multi-head lighting devices and improves the flexibility and assembly efficiency of the devices.
Smart Images
Figure CN223882242U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of lighting devices, and particularly relates to a lighting device, a coupling piece and a multi-head lighting device. BACKGROUND
[0002] The market has face frame type lighting devices, which are usually single-head lighting devices and multi-head lighting devices with two heads, three heads, four heads and the like, to meet the needs of different lighting scenes, and the use demand of the multi-head lighting devices is gradually increasing.
[0003] In the related art, a multi-head frame shell with a corresponding number of heads needs to be used for assembly to obtain a multi-head lighting device with a corresponding number of heads. Different molds with different numbers of heads need to be opened for the multi-head frame shell to meet the assembly requirements of multi-head lighting devices with different numbers of heads. The cost of opening the mold accounts for a relatively high proportion of the total cost of the product, and the more the number of heads of the multi-head frame shell, the higher the cost of the corresponding mold, which results in a high product cost of the multi-head lighting device. UTILITY MODEL CONTENT
[0004] The application aims to provide a lighting device, a coupling piece and a multi-head lighting device, and aims to solve the problem of high mold opening cost of a multi-head frame shell with a corresponding number of heads for assembly and production of a multi-head lighting device in the related art, which results in a high product cost of the multi-head lighting device.
[0005] To achieve the above-mentioned purpose, according to a first aspect of the application, the technical solution adopted by the application is as follows:
[0006] The lamp head has a light emitting end.
[0007] The face frame assembly includes a frame shell, and the frame shell has a first end and a second end in communication. The first end of the frame shell is connected to the light emitting end, and the second end is used for light emitting illumination. The outer side wall of the frame shell is provided with a first clamping part, which can be used for clamping with a second clamping part of the coupling piece, so as to combine multiple lighting devices into a multi-head lighting device.
[0008] In some embodiments of the application, the outer side wall of the frame shell is further provided with a third clamping part, which is used for clamping with a fourth clamping part of the coupling piece to limit the disengagement of the first clamping part and the second clamping part.
[0009] In some embodiments of the application, the outer side wall of the frame shell is further provided with a stepped surface, and the first clamping part is provided as a clamping groove or a clamping protrusion that communicates to the stepped surface. The clamping groove or the clamping protrusion extends along the axis direction of the lamp head.
[0010] In some embodiments of the application, the projection contour shape of the frame shell along the axis direction of the lamp head is a rectangle, and the four outer side walls of the frame shell are each provided with the first clamping part and the third clamping part.
[0011] In some embodiments of the present application, each outer side wall of the frame shell is provided with two first clamping portions and at least one third clamping portion, and the third clamping portion is located between the two first clamping portions.
[0012] In some embodiments of the present application, the lighting device further comprises an adapter ring, the adapter ring is sleeved on the light emitting end, and the adapter ring is detachably connected with the first end of the frame shell.
[0013] In some embodiments of the present application, the adapter ring is provided with a stop flange and a hook arranged on the stop flange, the hook extends towards the lamp holder, the inner wall of the frame shell is provided with an annular protrusion, the hook is hooked on the annular protrusion and the stop flange abuts against the annular protrusion.
[0014] According to a second aspect of the present application, a coupling piece is provided, wherein the coupling piece comprises a body portion and a second clamping portion arranged on the body portion, and the two opposite sides of the body portion are each provided with a second clamping portion, and the second clamping portion is used for clamping with the first clamping portion of the aforementioned lighting device.
[0015] In some embodiments of the present application, the coupling piece further comprises a fourth clamping portion arranged on the body portion, and the two opposite sides of the body portion are each provided with a fourth clamping portion, and the fourth clamping portion is used for clamping with the third clamping portion of the aforementioned lighting device.
[0016] In some embodiments of the present application, the two opposite sides of the coupling piece are each further provided with a limiting plate, and the limiting plate is used for abutting against the stepped surface of the lighting device when the fourth clamping portion and the third clamping portion are clamped, wherein the lighting device comprises a lamp holder and a face frame assembly, the lamp holder has a light emitting end, the face frame assembly comprises a frame shell, the frame shell has a first end and a second end in communication, the first end of the frame shell is connected with the light emitting end, the second end is used for emitting light, the outer side wall of the frame shell is provided with a first clamping portion, the first clamping portion can be used for clamping with the second clamping portion of the coupling piece, so that a plurality of lighting devices are combined into a multi-head lighting device, the outer side wall of the frame shell is further provided with a third clamping portion, the third clamping portion is used for clamping with the fourth clamping portion of the coupling piece, so as to limit the disengagement of the first clamping portion and the second clamping portion, the outer side wall of the frame shell is further provided with a stepped surface, the first clamping portion is arranged as a clamping groove or a clamping protrusion in communication with the stepped surface, and the clamping groove or the clamping protrusion extends along the axis direction of the lamp holder.
[0017] According to a second aspect of the present application, a multi-head lighting device is provided, wherein the multi-head lighting device comprises:
[0018] a plurality of the aforementioned lighting devices;
[0019] a plurality of the aforementioned coupling pieces;
[0020] The frame shells of the plurality of lighting devices are assembled by a corresponding number of coupling pieces to form a multi-head frame shell.
[0021] The present application has at least the following beneficial effects:
[0022] The embodiment of the present application provides a lighting device, a coupling piece and a multi-head lighting device formed by splicing a plurality of lighting devices and a plurality of coupling pieces. In the multi-head lighting device provided by the embodiment of the present application, a coupling piece is arranged between any two adjacent frame shells, so that a plurality of frame shells are spliced and assembled into a multi-head frame shell by a corresponding number of coupling pieces, thereby obtaining the multi-head lighting device. When the multi-head lighting device is used for lighting, a plurality of lamp heads emit light and irradiate to the light emitting end, and the light is emitted from the second end of the frame shell to perform lighting, so as to meet the requirement of the lighting scene. Compared with the multi-head lighting device in the related art, the multi-head lighting device provided by the embodiment of the present application has high mold opening cost of the multi-head frame shell corresponding to the number of heads. The multi-head lighting device provided by the embodiment of the present application is formed by splicing and assembling a plurality of frame shells into a multi-head frame shell by a corresponding number of coupling pieces on the basis of the lighting device provided by the present application, thereby obtaining the multi-head lighting device. That is, the multi-head lighting device provided by the embodiment of the present application does not need to open molds of the corresponding multi-head frame shell for different numbers of multi-head lighting devices, but only needs to open molds of the single-head frame shell and manufacture the coupling piece, so as to splice and assemble a plurality of frame shells into a multi-head frame shell. The mold opening cost of the frame shell of the lighting device provided by the present application and the cost of manufacturing the coupling piece are much lower than the mold opening cost of opening the mold of the multi-head frame shell, so that the product cost of the multi-head lighting device is greatly reduced. Moreover, the first clamping part of the outer side wall of the frame shell and the second clamping part of the coupling piece are detachably clamped, so that a plurality of frame shells can be conveniently and quickly spliced and assembled into a multi-head frame shell through the coupling piece, and the frame shells can be conveniently and quickly disassembled and separated, so as to splice and assemble a new multi-head frame shell with a required number of heads, thereby improving the flexibility of the multi-head lighting device. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.
[0024] Figure 1 It is a schematic diagram of the assembly structure of a four-head lighting device of the embodiment of the present application;
[0025] Figure 2 It is a schematic diagram of the assembly structure of a four-head lighting device of the embodiment of the present application; Figure 1 It is a schematic diagram of the assembly structure of a four-head lighting device of the embodiment of the present application;
[0026] Figure 3 It is a schematic diagram of the assembly structure of a three-head lighting device of the embodiment of the present application;
[0027] Figure 4 for Figure 3 An exploded view of the three-head lighting device is shown;
[0028] Figure 5 This is a schematic diagram of the assembly structure of a two-headed lighting device according to an embodiment of this application;
[0029] Figure 6 for Figure 5 An exploded view of the two-headed lighting device is shown;
[0030] Figure 7 This is an exploded view of a single lamp head, adapter ring, and face frame assembly in a multi-head lighting device according to an embodiment of this application. Figure 1 ;
[0031] Figure 8 This is an exploded view of a single lamp head, adapter ring, and face frame assembly in a multi-head lighting device according to an embodiment of this application. Figure 2 ;
[0032] Figure 9 This is a schematic diagram of the connecting member in the multi-head lighting device according to an embodiment of this application. Figure 1 ;
[0033] Figure 10 This is a schematic diagram of the connecting member in the multi-head lighting device according to an embodiment of this application. Figure 2 .
[0034] The figures in the diagram are labeled as follows:
[0035] 10. Lamp holder; 11. Light-emitting end;
[0036] 20. Adapter ring; 21. Stop flange; 22. Hook; 23. Mounting part;
[0037] 30. Face frame assembly; 31. Frame shell; 311. First end; 312. Second end; 313. First snap-fit part; 314. Third snap-fit part; 315. Stepped surface; 316. Annular protrusion; 317. Connecting part; 32. Snap ring; 33. Reflector; 331. Light entrance; 332. Reflective surface;
[0038] 40. Connecting component; 401. Main body; 41. Second locking part; 42. Fourth locking part; 43. Limiting plate. Detailed Implementation
[0039] The embodiments of this application 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 intended to explain this application, and should not be construed as limiting this application.
[0040] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0041] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0042] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0043] According to the first aspect of the embodiments of the present application, a lighting device is provided. As shown in Figure 7 and Figure 8 The lighting device provided by the embodiments of the present application includes a lamp holder 10 and a face frame assembly 30, the lamp holder 10 has a light emitting end 11, the face frame assembly 30 includes a frame shell 31, the frame shell 31 has a first end 311 and a second end 312 in communication, the first end 311 of the frame shell 31 is connected with the light emitting end 11, the second end 312 is used for light emitting illumination, and the outer side wall of the frame shell 31 is provided with a first clamping part 313. As shown in Figures 1 to 6 The first clamping part 313 can be used for detachable clamping with the second clamping part 41 of the coupling piece 40, so that a plurality of lighting devices are combined into a multi-head lighting device.
[0044] The lighting device provided by the embodiment of the present application can be used for lighting individually, that is, the lighting device is fixedly installed on a fixed installation position such as a ceiling or a wall by the face frame assembly 30, the lamp head 10 emits light and irradiates to the light emitting end 11, and the light is emitted from the second end 312 of the frame shell 31 to perform lighting. In addition, between the frame shell 31 of the lighting device and the coupling piece 40, the first clamping part 313 of the outer side wall of the frame shell 31 and the second clamping part 41 of the coupling piece 40 are detachably clamped, so that a plurality of frame shells 31 can be conveniently and quickly spliced and assembled into a multi-head frame shell (that is, a multi-head lighting device is assembled and formed) by the coupling piece 40, and the frame shells 31 are also conveniently disassembled and separated to form a new multi-head frame shell with a required number of heads by splicing and assembling, thereby improving the flexibility of the multi-head lighting device.
[0045] In the lighting device of the embodiment of the present application, as shown in Figure 7 and Figure 8 , the outer side wall of the frame shell 31 is further provided with a third clamping part 314. When a plurality of lighting devices are spliced and assembled into a multi-head lighting device by a corresponding number of coupling pieces 40, as shown in Figures 7 to 10 , the third clamping part 314 is used for detachably clamping with the fourth clamping part 42 of the coupling piece 40 to limit the disengagement of the first clamping part 313 and the second clamping part 41. Specifically, as shown in Figure 7 , the outer side wall of the frame shell 31 is further provided with a stepped surface 315, and the first clamping part 313 is provided as a clamping groove or a clamping protrusion which is connected to the stepped surface 315 and extends along the axis direction of the lamp head 10. Correspondingly, as shown in Figure 8 , the second clamping part 41 of the coupling piece 40 is provided as a clamping protrusion or a clamping groove which is matched with the first clamping part 313, and the extension direction of the second clamping part 41 is consistent with the extension direction of the first clamping part 313. After the clamping of the first clamping part 313 and the second clamping part 41 is completed, the clamping of the third clamping part 314 and the fourth clamping part 42 limits the clamping cooperation between the first clamping part 313 and the second clamping part 41, so that the first clamping part 313 and the second clamping part 41 cannot slide away from each other along the axis direction of the lamp head 10, thereby keeping the assembly stability between the frame shell 31 and the coupling piece 40, that is, keeping the assembly stability between the adjacent two lighting devices.
[0046] In the lighting device of the embodiment of the present application, the projection profile of the frame shell 31 along the axis direction of the lamp head 10 is rectangular, and the four outer side walls of the frame shell 31 are provided with the first clamping part 313 and the third clamping part 314. As shown in Figure 7 and Figure 8As shown, each outer side wall of the frame shell 31 is provided with two first clamping portions 313 and at least one third clamping portion 314, and the third clamping portion 314 is located between the two first clamping portions 313. In this way, when the two adjacent lighting devices are assembled by the coupling member 40, the two first clamping portions 313 located at the two ends of each outer side wall are clamped with the corresponding two second clamping portions 41 of the coupling member 40, and the third clamping portion 314 is located between the two first clamping portions 313. When the third clamping portion 314 is clamped with the fourth clamping portion 42 of the coupling member 40, the two connection positions formed by the clamping of the two first clamping portions 313 and the two second clamping portions 41 and the connection position formed by the clamping of the third clamping portion 314 and the fourth clamping portion 42 form a triangular structure. Since the triangular structure has stability, the relative shaking between the frame shell 31 and the coupling member 40 can be avoided, and the assembly stability between the frame shell 31 and the coupling member 40 is maintained, that is, the assembly stability between the two adjacent lighting devices is maintained.
[0047] As shown in Figure 7 and Figure 8 , the lighting device provided by the embodiment of the present application further comprises an adapter ring 20, the adapter ring 20 is sleeved on the light emitting end 11, and the adapter ring 20 is detachably connected with the first end 311 of the frame shell 31. As shown in Figure 7 and Figure 8 , the adapter ring 20 is provided with a stop flange 21 and a hook 22 arranged on the stop flange 21, the hook 22 extends towards the lamp holder 10, the inner wall of the frame shell 31 is provided with an annular protrusion 316, the hook 22 is hooked on the annular protrusion 316 and the stop flange 21 abuts against the annular protrusion 316, that is, the annular protrusion 316 is clamped between the barb of the hook 22 and the stop flange 21. The lamp holder 10 and the frame shell 31 of the face frame assembly 30 are connected by the adapter ring 20, so as to simplify the structural design of the frame shell 31, thereby facilitating the manufacturing of the frame shell 31 and improving the production efficiency.
[0048] As shown in Figure 7 and Figure 8 , the inner wall of the adapter ring 20 is further provided with a mounting portion 23, which is detachably connected with a diffusion plate (not shown). The light emitted by the lamp holder 10 is transmitted through the diffusion plate for illumination, so that the human eye cannot directly view the LED light source inside the lamp holder 10, thereby reducing the dazzling and dazzling degree of the LED light source and protecting the human eye. In addition, the diffusion plate can also block dust and sundries from entering the inside of the lamp holder 10 to some extent, which is beneficial to keeping the inside of the lamp holder 10 clean.
[0049] As shown in Figures 1 to 8As shown, the face frame assembly 30 of the lighting device provided by the embodiments of the present application further comprises a clamping spring 32, the first end 311 of the frame shell 31 is provided with two opposite connecting portions 317, and the clamping spring 32 is detachably connected to the connecting portions 317. The clamping spring 32 is clamped and fixed in the mounting groove reserved in the fixed mounting position on the ceiling, wall or the like by the elastic force provided by the clamping spring 32, and the installation process is convenient and fast, thereby improving the installation efficiency.
[0050] As shown in Figure 7 and Figure 8 , the face frame assembly 30 further comprises a reflector 33, the reflector 33 is detachably arranged in the frame shell 31, the reflector 33 has a light inlet 331 and a reflecting surface 332, and the end surface of the light inlet 331 abuts against the end of the adapter ring 20 away from the lamp head 10, and the reflecting surface 332 faces the second end 312 of the frame shell 31. The light irradiated from the second end 312 of the frame shell 31 has a part of the divergent light, and the reflecting surface 332 of the reflector 33 is used to reflect the part of the divergent light, so as to reuse the divergent light for illumination, thereby improving the light utilization efficiency.
[0051] According to a second aspect of the embodiments of the present application, a coupling piece 40 is provided. As shown in Figure 9 and Figure 10 , the coupling piece 40 comprises a body portion 401 and a second clamping portion 41 arranged on the body portion 401, and the opposite sides of the body portion 401 are each provided with the second clamping portion 41, and the second clamping portion 41 is used for detachably clamping with the first clamping portion 313 of the aforementioned lighting device. Between the frame shell 31 of the lighting device and the coupling piece 40, the first clamping portion 313 of the outer side wall of the frame shell 31 and the second clamping portion 41 of the coupling piece 40 are detachably clamped, so that a plurality of frame shells 31 can be conveniently and quickly assembled into a multi-head frame shell (i.e. assembled into a multi-head lighting device) through the coupling piece 40, and the frame shells 31 are also convenient to disassemble and separate.
[0052] As shown in Figure 9 and Figure 10 , the coupling piece 40 provided by the embodiments of the present application further comprises a fourth clamping portion 42 arranged on the body portion 401, and the opposite sides of the body portion 401 are each provided with the fourth clamping portion 42, and the fourth clamping portion 42 is used for detachably clamping with the third clamping portion 314 of the aforementioned lighting device. After the clamping of the first clamping portion 313 and the second clamping portion 41 is completed, the clamping of the third clamping portion 314 and the fourth clamping portion 42 limits the clamping cooperation between the first clamping portion 313 and the second clamping portion 41, so that the first clamping portion 313 and the second clamping portion 41 cannot slide away from each other along the axis direction of the lamp head 10, thereby keeping the assembly stability between the frame shell 31 and the coupling piece 40, that is, keeping the assembly stability between the adjacent two lighting devices.
[0053] AsFigures 1 to 6 , Figure 9 and Figure 10 As shown, limiting plates 43 are also provided on both opposite sides of the connector 40. The limiting plates 43 are used to abut against the stepped surface 315 of the aforementioned lighting device when the fourth engaging part 42 and the third engaging part 314 are engaged. In this way, the fourth engaging part 42 and the limiting plates 43 cooperate to limit each other, so that when the connector 40 is assembled to the frame 31, the limiting plates 43 can prevent the fourth engaging part 42 from being misaligned along the axial direction of the lamp holder 10 beyond the third engaging part 314, so that the fourth engaging part 42 and the third engaging part 314 can be assembled accurately and quickly.
[0054] According to a third aspect of an embodiment of this application, a multi-head lighting device is provided. For example... Figures 1 to 6 As shown, the multi-head lighting device includes multiple aforementioned lighting devices and multiple aforementioned connecting parts 40. The frames 31 of the multiple lighting devices are spliced and assembled by a corresponding number of connecting parts 40 to form a multi-head frame, that is, multiple lighting devices are spliced and assembled to form a multi-head lighting device.
[0055] In the multi-head lighting device provided in the embodiments of this application, a connecting member 40 is provided between any two adjacent lighting device frame shells 31. In this way, multiple frame shells 31 are spliced and assembled into a multi-head frame shell by a corresponding number of connecting members 40, thereby assembling a multi-head lighting device. When the multi-head lighting device is illuminating, multiple lamp heads 10 emit light and illuminate the light-emitting end 11. The light is emitted from the second end 312 of the frame shell 31 to provide illumination, thereby meeting the lighting requirements of the lighting scene for multi-head lighting device illumination. Compared to the high mold costs associated with multi-head lighting devices using multi-head frames of a corresponding number of heads in related technologies, the multi-head lighting device provided in this application is based on the lighting device provided in this application. Multiple frames 31 are assembled into a multi-head frame using a corresponding number of connectors 40, thereby forming a multi-head lighting device. In other words, the multi-head lighting device in this application does not require molding corresponding multi-head frames for multi-head lighting devices with different numbers of heads. Only a single-head frame 31 needs to be molded and the connectors 40 manufactured. Multiple frames 31 can then be assembled into a multi-head frame. The mold cost of the frame 31 and the cost of manufacturing the connectors 40 for the lighting device provided in this application are much lower than the mold cost of a multi-head frame, thus greatly reducing the product cost of the multi-head lighting device. Furthermore, the frame 31 of a single head and the connector 40 are detachably connected by the first snap-fit portion 313 on the outer side wall of the frame 31 and the second snap-fit portion 41 of the connector 40. This allows multiple frame 31s to be easily and quickly assembled into a multi-head frame through the connector 40. It also makes it easy to disassemble and separate the frame 31s to reassemble and form a new multi-head frame with the required number of heads, thus improving the flexibility of the multi-head lighting device.
[0056] In the embodiments of the present application, the lighting device is specifically a down lamp, and the multi-head lighting device is a multi-head down lamp.
[0057] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An illumination device, characterized by The application relates to a lighting device, comprising: a lamp head (10) having a light emitting end (11); a face frame assembly (30) comprising a frame shell (31) having a first end (311) and a second end (312) in communication, the first end (311) of the frame shell (31) being connected with the light emitting end (11), and the second end (312) being used for light emitting illumination, and a first clamping part (313) being arranged on the outer side wall of the frame shell (31) and being used for clamping with a second clamping part (41) of a coupling piece (40) so as to combine multiple lighting devices into a multi-head lighting device.
2. The lighting device according to claim 1, characterized in that a third clamping part (314) is further arranged on the outer side wall of the frame shell (31) and is used for clamping with a fourth clamping part (42) of the coupling piece (40) so as to limit the first clamping part (313) from being disengaged from the second clamping part (41).
3. The lighting device according to claim 2, characterized in that a stepped surface (315) is further arranged on the outer side wall of the frame shell (31), and the first clamping part (313) is arranged as a clamping groove or clamping convex which is communicated to the stepped surface (315) and extends along the axial direction of the lamp head (10).
4. The lighting device according to claim 2 or 3, characterized in that the frame shell (31) is projected along the axial direction of the lamp head (10) to form a rectangular contour shape, and at least two outer side walls of the four outer side walls of the frame shell (31) are provided with the first clamping part (313) and the third clamping part (314).
5. The lighting device according to claim 4, characterized in that the outer side wall of at least one face of the frame shell (31) is provided with two first clamping parts (313) and at least one third clamping part (314), and the third clamping part (314) is located between the two first clamping parts (313).
6. The lighting device according to claim 5, characterized in that the lighting device further comprises an adapter ring (20) which is sleeved on the light emitting end (11) and is detachably connected with the first end (311) of the frame shell (31); the adapter ring (20) is provided with a stop flange (21) and a hook (22) arranged on the stop flange (21), the hook (22) extends towards the lamp head (10), an inner wall of the frame shell (31) is provided with an annular protrusion (316), and the hook (22) is hooked on the annular protrusion (316) and the stop flange (21) abuts against the annular protrusion (316).
7. A coupling piece (40), characterized in that The coupling piece (40) comprises a body part (401) and a second clamping part (41) arranged on the body part (401), and the two opposite sides of the body part (401) are each provided with the second clamping part (41), and the second clamping part (41) is detachably clamped with the first clamping part (313) of the lighting device of any one of claims 1-6.
8. The coupling piece (40) according to claim 7, characterized in that, The coupling piece (40) further comprises a fourth clamping part (42) arranged on the body part (401), and the two opposite sides of the body part (401) are each provided with the fourth clamping part (42), and the fourth clamping part (42) is used for detachable clamping with the third clamping part (314) of the lighting device.
9. The coupling piece (40) according to claim 8, characterized in that, The two opposite sides of the coupling piece (40) are each further provided with a limiting plate (43), and the limiting plate (43) abuts against the stepped surface (315) of the lighting device of claim 3 when the fourth clamping part (42) and the third clamping part (314) are clamped.
10. A multi-headed lighting device, characterized by Comprise: A plurality of lighting devices according to any one of claims 1-6; At least one coupling piece (40) according to any one of claims 7-9; The frame shells (31) of a plurality of the lighting devices are assembled by a corresponding number of the coupling pieces (40) to form a multi-head frame shell.