Embedded lamp

By designing a multi-stage adjustment ring assembly and sliding groove bump structure embedded lamps, the problems of cumbersome disassembly and lens damage are solved, and convenient disassembly and light source replacement is achieved, preventing paint damage, and improving practicality and light and shadow effects.

CN223204234UActive Publication Date: 2025-08-08SUNWA TECH CO LTD
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Patent Information

Application Number
CN202422623408.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2025-08-08
Estimated Expiration
2034-10-29

AI Technical Summary

Technical Problem

The existing embedded spotlights are complicated to disassemble and assemble, and the light source is inconvenient to replace, and the inappropriate opening during installation can easily lead to damage to the lens or poor light and shadow effect.

Method used

A recessed lamp including a power supply, a radiator, a light source assembly, an adjustment ring assembly and a surface ring is designed. Through the multi-level structure of the adjustment ring assembly, the multi-angle adjustment and rapid disassembly of the lamp are realized. The cooperation between the sliding groove and the bumps is used to achieve detachable connection of the surface ring, allowing repainting to be made first and then lenses are installed.

Benefits of technology

It improves the disassembly and assembly efficiency of lamps and the convenience of light source replacement, prevents paint from sticking to damage the lens, has a simple and compact structure and is flexible to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an embedded lamp, and belongs to the technical field of lamps. The embedded lamp comprises a power source, a radiator, a light source assembly, an adjusting ring assembly and a face ring. A power line of the power source penetrates through the radiator to be connected with the light source assembly. The light source assembly is arranged in the radiator and abuts against the adjusting ring assembly. The surface ring is arranged at the bottom end of the radiator; the adjusting ring assembly is arranged in the face ring and detachably connected with the face ring. According to the scheme, the lamp can be conveniently disassembled and assembled, the light source can be conveniently replaced, the replacement efficiency is improved, the practicability of the lamp is further improved, when the embedded lamp is installed, when the open hole is too large and paint repair is needed, paint repair can be conducted firstly, and then the light source assembly is installed; the problem that the light source assembly is damaged or the light and shadow effect is poor due to the fact that paint adheres to the surface of the light source assembly is effectively solved, and the whole structure is simple and compact and flexible to use.
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Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to an embedded lamp. Background Art

[0002] Lamps, as lighting equipment, are devices that convert electricity or other energy sources into light to provide illumination and create a specific atmosphere. They not only meet people's basic need for light but also add beauty and personalization to any environment through diverse designs, materials, and lighting effects. They are now widely used in homes, commercial spaces, and outdoor venues, and can be found everywhere.

[0003] With the continuous improvement of people's quality of life, people have higher requirements for the structure, performance, and appearance of lighting fixtures. Recessed spotlights (built-in lights), as a type of lighting fixture, are becoming increasingly popular due to their ability to be concealed in the ceiling. However, current recessed spotlights are generally assembled before being installed on the ceiling. If the light source is damaged, the entire spotlight must be removed and replaced. This process is not only cumbersome and inefficient, but also inconvenient to replace the light source, resulting in poor practicality. Moreover, when installing existing recessed lamps, if the hole is not properly cut, it is easy for the paint to adhere to the lens during the repainting process after the lamp is installed, affecting the optical effect of the lens and even damaging it.

[0004] Therefore, there is an urgent need to design an embedded lamp that can easily disassemble and assemble the lamp and replace the light source, which not only improves the replacement efficiency, but also enriches the types of light sources and improves the practicality of the lamp. When the embedded lamp is installed, if the opening is too large and needs to be repainted, the paint can be repainted first and then the lens is installed, which effectively prevents the problem of lens damage or poor light and shadow effects caused by paint adhering to the lens surface. The entire structure is simple and compact and flexible to use. Utility Model Content

[0005] In order to overcome the problems existing in the related art, the present application provides a recessed lamp, which can be easily disassembled and assembled and the light source can be replaced, which not only improves the replacement efficiency, but also enriches the types of light sources and improves the practicality of the lamp. When the recessed lamp is installed, if the opening is too large and needs to be repainted, the paint can be repainted first and then the lens can be installed, which effectively prevents the problem of lens damage or poor light and shadow effects caused by paint adhering to the lens surface. The entire structure is simple and compact and flexible to use.

[0006] The first aspect of the present application is to provide a recessed lamp, comprising a power supply, a heat sink, a light source assembly, an adjustment ring assembly and a face ring; the power cord of the power supply passes through the heat sink and is connected to the light source assembly; the light source assembly is arranged in the heat sink and abuts against the adjustment ring assembly; the face ring is arranged at the bottom end of the heat sink; the adjustment ring assembly is arranged on the inner side of the face ring and is detachably connected to the face ring.

[0007] In a preferred technical solution of the present application, the adjustment ring assembly includes a first adjustment ring, a second adjustment ring and a third adjustment ring; the first adjustment ring, the second adjustment ring and the third adjustment ring are arranged in sequence from the inside to the outside, and the centers of the first adjustment ring, the second adjustment ring and the third adjustment ring overlap.

[0008] In a preferred technical solution of the present application, the first adjustment ring includes a wide diameter portion and a narrow diameter portion; a plurality of steps are provided on the inner side wall of the wide diameter portion, and the steps are used to place and limit the light source assembly; the second adjustment ring is sleeved on the wide diameter portion; the narrow diameter portion is provided below the wide diameter portion and is connected to the wide diameter portion.

[0009] In a preferred technical solution of the present application, a plurality of sliding grooves are provided on the outer side wall of the third adjustment ring; the plurality of sliding grooves are evenly arranged along the circumferential direction of the third adjustment ring; and a protrusion is provided on the face ring for use with the sliding grooves.

[0010] In a preferred technical solution of the present application, the sliding groove includes a first groove portion and a second groove portion; the first groove portion and the second groove portion are arranged in sequence along the circumferential direction of the third adjustment ring, and the first groove portion and the second groove portion are connected; wherein, the first groove portion is connected to the top end of the third adjustment ring, and is used to enable the protrusion to move up and down in the first groove portion; the groove height of the second groove portion is smaller than the groove height of the first groove portion, and the second groove portion is provided with a protrusion on the side close to the top end of the first groove portion.

[0011] In a preferred technical solution of the present application, the radiator includes a body, a plurality of convection grooves and a through groove; the plurality of convection grooves are symmetrically arranged in the body; the through groove is arranged on the body and is connected to the convection grooves.

[0012] In a preferred technical solution of the present application, the light source assembly includes a light source, a light source mounting plate and a lens portion; the light source is mounted on the light source mounting plate; the light source mounting plate is arranged at the top of the lens portion; the lens portion is arranged at the lower end of the radiator, and the bottom end of the lens abuts against the step of the first adjustment ring.

[0013] In a preferred technical solution of the present application, the light source includes any one of a COB light source and a patch light source.

[0014] In a preferred technical solution of the present application, the lens portion includes a lens and a lens shell; the lens is arranged in the lens shell; and the light source mounting plate is fixed to the lens shell by screws.

[0015] In a preferred technical solution of the present application, a movable gap is provided between the second adjustment ring and the first adjustment ring.

[0016] The technical solution provided by the present application may include the following beneficial effects: the embedded lamp provided by the present application includes a power supply, a heat sink, a light source assembly, an adjustment ring assembly and a face ring. By providing a first adjustment ring, a second adjustment ring and a third adjustment ring, and providing a movable gap between the first adjustment ring and the second adjustment ring, the lamp can be adjusted at multiple angles through their mutual cooperation, effectively meeting the user's usage needs, broadening the application scenarios of the lamp, and improving the practicality of the lamp. By providing an adjustment ring assembly, the lamp can be quickly disassembled and assembled, so that the light source can be replaced according to actual needs, which is flexible to use and further improves the practicality of the lamp. By providing a sliding groove on the third adjustment ring and a protrusion on the face ring that cooperates with the sliding groove, the third adjustment ring and the face ring can be detachably connected, which facilitates the disassembly and assembly of the lamp and the replacement of the light source. Compared with existing lamps, the embedded lamps provided in this application can be easily disassembled and assembled and the light source can be replaced, which not only improves the replacement efficiency, but also enriches the types of light sources and improves the practicality of the lamp. When installing the embedded lamp, if the opening is too large and needs to be repainted, the paint can be repainted first and then the lens can be installed, which effectively prevents the problem of lens damage or poor light and shadow effects caused by paint adhering to the lens surface. The entire structure is simple and compact and flexible to use.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0019] Figure 1 is an exploded schematic diagram of a recessed lamp shown in an embodiment of the present application;

[0020] Figure 2 is a schematic structural diagram of an embedded lamp shown in an embodiment of the present application;

[0021] Figure 3This is a schematic structural diagram of the embedded lamp shown in an embodiment of the present application without the heat sink;

[0022] Figure 4 1 is a schematic structural diagram of the adjustment ring assembly and the front ring in an embodiment of the present application;

[0023] Figure 5 is a schematic structural diagram of a second adjustment ring shown in an embodiment of the present application;

[0024] Figure 6 1 is a schematic structural diagram of a third adjustment ring shown in an embodiment of the present application;

[0025] Figure 7 It is a structural schematic diagram of the face ring shown in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 1. Power supply; 11. Power cord; 2. Heat sink; 21. Main body; 22. Through slot; 3. Light source assembly; 31. Light source; 32. Light source mounting plate; 33. Lens portion; 331. Lens; 332. Lens housing; 4. Adjustment ring assembly; 41. First adjustment ring; 411. Wide diameter portion; 412. Narrow diameter portion; 413. Step; 414. Connecting hole; 42. Second adjustment ring; 421. Convex circle; 422. Observation hole; 43. Third adjustment ring; 431. Sliding slot; 4311. First slot portion; 4312. Second slot portion; 4313. Protrusion; 5. Face ring; 51. Bump. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0029] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0030] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Current recessed lighting fixtures are typically fully assembled before being installed on the ceiling. If the light source is damaged, the entire spotlight must be removed and replaced. This process is not only cumbersome and inefficient, but also inconvenient to replace the light source, making the spotlight less practical. Furthermore, if the hole in the existing spotlight is not properly cut during installation, paint can easily adhere to the lens during the repainting process after installation, affecting the optical effect of the lens or even damaging it.

[0032] In response to the above problems, the embodiment of the present application provides a recessed lamp that is easy to disassemble and assemble and replace the light source, which not only improves the replacement efficiency, but also enriches the types of light sources and improves the practicality of the lamp. When the recessed lamp is installed, if the opening is too large and needs to be repainted, the paint can be repainted first and then the lens can be installed, which effectively prevents the problem of lens damage or poor lighting effects caused by paint adhering to the lens surface. The entire structure is simple and compact and flexible to use.

[0033] The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] Example

[0035] See also Figure 1-7 The embedded lamp of the present application includes a power supply 1, a radiator 2, a light source assembly 3, an adjustment ring assembly 4 and a face ring 5. The power supply 1 is arranged above the radiator 2, the light source assembly 3 is arranged in the radiator 2 and abuts against the adjustment ring assembly 4; the adjustment ring assembly 4 and the face ring 5 are arranged at the bottom end of the radiator 2.

[0036] In order to ensure the heat dissipation effect, the radiator 2 is formed into one piece by pure cold forging and die casting. Specifically, the radiator 2 includes a main body 21, a plurality of convection grooves and a through groove 22. The plurality of convection grooves are symmetrically arranged in the main body 21, and the through groove 22 is arranged on the main body 21 and is connected to the convection groove. By arranging the through groove 22 to be connected to the convection groove, the convection of the air can be accelerated, so that when the radiator 2 absorbs the heat emitted by the light source assembly 3, the heat can be dissipated faster, which effectively improves the heat dissipation effect, thereby avoiding the problem of large light attenuation of the light source assembly 3 due to excessively high ambient temperature, and improving the service life of the light source assembly 3. Furthermore, a through hole is also provided on the radiator 2, and the power cord of the power supply 1 passes through the through hole of the radiator 2 and is connected to the light source assembly 3, which is used to provide current to the light source assembly 3 so that the light source assembly 3 can emit light.

[0037] The light source assembly 3 includes a light source 31, a light source mounting plate 32 and a lens portion 33. The light source 31 is mounted on the light source mounting plate 32, and the light source mounting plate 32 is arranged at the top of the lens portion 33. The lens portion 33 is arranged at the lower end of the radiator 2 and abuts against the adjustment ring assembly 4. Specifically, the lens portion 33 includes a lens 331 and a lens shell 331. The lens 331 is arranged in the lens shell 331. The light source mounting plate 32 is fixed to the lens shell 331 by screws, and a light-transmitting hole is provided in the middle of the light source mounting plate 32. The light source 31 is arranged at the light-transmitting hole. It should be noted that the light source 31 includes any one of a COB light source and a patch light source, which can be freely replaced, so that a point light source or a scattered light source can be selected according to actual needs, further improving the practicality of the embedded lamp.

[0038] The adjustment ring assembly 4 is arranged on the inner side of the face ring 5 and is detachably connected to the face ring 5. Specifically, the adjustment ring assembly 4 includes a first adjustment ring 41, a second adjustment ring 42 and a third adjustment ring 43. The first adjustment ring 41, the second adjustment ring 42 and the third adjustment ring 43 are arranged in sequence from the inside to the outside, and the centers of the first adjustment ring 41, the second adjustment ring 42 and the third adjustment ring 43 overlap. For example, Figures 1-4 As shown, the second adjustment ring 42 is sleeved on the first adjustment ring 41. Specifically, the first adjustment ring 41 includes a wide diameter portion 411 and a narrow diameter portion 412. The inner sidewall of the wide diameter portion 411 is provided with multiple steps 413. The steps 413 are used to place and limit the light source assembly 3. That is, the bottom ends of the lens 331 and the lens housing 331 are both placed on the steps 413 and abut against the steps 413. The second adjustment ring 42 is sleeved on the wide diameter portion 411; the narrow diameter portion 412 is provided below the wide diameter portion 411 and connected to the wide diameter portion 411.

[0039] Furthermore, to increase the adjustable angles and adjustment methods of the embedded lamp, the first adjustment ring 41 is provided with a connection hole 414 located on the wide diameter portion 411. The second adjustment ring is provided with a convex bead 421 that mates with the connection hole 414 and is located on the inner sidewall of the second adjustment ring 42. To facilitate alignment of the convex bead 421 with the connection hole 414, the second adjustment ring 42 is also provided with an observation hole 422 located on the convex bead 421. To facilitate adjustment of the first adjustment ring 41, a clearance is provided between the second adjustment ring 42 and the first adjustment ring 41. When the second adjustment ring 42 is mounted on the first adjustment ring 41, the top of the convex circle 421 contacts the head end of the connecting hole 414. At this time, it is only necessary to apply an upward force to the left or right side of the first adjustment ring 41 to make the first adjustment ring 41 move toward the upper left or upper right with the contact point between the connecting hole 414 and the convex circle 421 as the base point, thereby driving the light source assembly 3 to tilt to the left or right, thereby effectively adjusting the light output angle. Preferably, the adjustment angle of the first adjustment ring 41 is 35 degrees. In addition, in order to facilitate the horizontal adjustment of the light source 31, the third adjustment ring 43 is mounted on the second adjustment ring 42 and has an interference fit with the second adjustment ring 42. At this time, it is only necessary to rotate the third adjustment ring 43 to drive the second adjustment ring 42 to rotate horizontally, thereby achieving horizontal adjustment of the lamp.

[0040] To facilitate disassembly, assembly, and replacement of the light source 31, the outer wall of the third adjustment ring 43 is provided with a plurality of sliding grooves 431, which are evenly spaced along the circumference of the third adjustment ring 43. The face ring 5 is provided with a protrusion 51 for use with the sliding grooves 431. Specifically, the sliding grooves 431 include a first groove portion 4311 and a second groove portion 4312, which are sequentially disposed along the circumference of the third adjustment ring 43 and are interconnected. The first groove 4311 communicates with the top of the third adjustment ring 43, allowing the protrusion to move up and down within the first groove 4311. The second groove 4312 is smaller in height than the first groove 4311, and a protrusion 4313 is provided on the side of the second groove 4312 near the top of the first groove 4311. The protrusion 4313 cooperates with the second groove 4312 to retain the protrusion on the face ring 5 within the second groove 4312. More specifically, the protrusion 51 is provided on the inner sidewall of the face ring 5, and its width is slightly smaller than that of the first groove 4311, enabling the protrusion to move up and down within the first groove 4311. Exemplarily, three sliding grooves 431 are provided. By providing three sliding grooves 431, the lines connecting the force-bearing connection points of the third adjustment ring 43 and the face ring 5 form a triangle, effectively improving the stability of the connection between the front ring and the face ring 5.

[0041] The working principle of the embedded lamp disassembly and assembly:

[0042] When installing the lamp, first drill a hole on the ceiling, then install the face ring 5 at the hole, then pass the power cord of the power supply 1 through the through hole of the radiator 2 and connect it to the light source 31, then push the radiator 2 and the light source assembly 3 into the hole in the ceiling, and higher than the top of the face ring 5, then pass the adjustment ring assembly 4 through the hole so that the bottom end of the lens 331 abuts against the adjustment ring assembly 4. In this process, it is necessary to align the first groove 4311 with the protrusion 51 until the protrusion 51 touches the bottom of the first groove 4311, and then rotate the adjustment ring assembly 4 clockwise so that the protrusion 51 can enter and be confined in the second groove 4312, thereby completing the installation of the lamp. When the light source 31 needs to be replaced, it is only necessary to apply an upward force to the adjusting ring assembly 4 until the protrusion 51 abuts against the bottom of the second groove 4312. At this time, the adjusting ring assembly 4 is rotated counterclockwise so that the protrusion is completely located in the first groove 4311. The adjusting ring assembly 4 can be removed and the light source 31 can be replaced. The whole process is simple and fast.

[0043] It should be noted that when the staff opens a hole that is too large, when installing the lamp, they only need to install the face ring 5 at the hole and then perform the repainting operation. After the paint is dry, install the radiator 2, the light source assembly 3 and the adjustment ring assembly 4. This can avoid the problem in the existing installation method where the entire lamp is installed first and then the repainting operation is performed, which can easily cause the lens to adhere to paint, resulting in damage to the lens or poor optical effect.

[0044] In this embodiment, the embedded lamp provided by the present application includes a power supply, a heat sink, a light source assembly, an adjustment ring assembly and a face ring. By providing a first adjustment ring, a second adjustment ring and a third adjustment ring, and providing a movable gap between the first adjustment ring and the second adjustment ring, the lamp can be adjusted at multiple angles through their mutual cooperation, effectively meeting the user's usage needs, broadening the application scenarios of the lamp, and improving the practicality of the lamp. By providing an adjustment ring assembly, the lamp can be quickly disassembled and assembled, so that the light source can be replaced according to actual needs, which is flexible to use and further improves the practicality of the lamp. By providing a sliding groove on the third adjustment ring and a protrusion on the face ring that cooperates with the sliding groove, the third adjustment ring and the face ring can be detachably connected, which facilitates the disassembly and assembly of the lamp and the replacement of the light source. Compared with existing lamps, the embedded lamps provided in this application can be easily disassembled and assembled and the light source can be replaced, which not only improves the replacement efficiency, but also enriches the types of light sources and improves the practicality of the lamp. When installing the embedded lamp, if the opening is too large and needs to be repainted, the paint can be repainted first and then the lens can be installed, which effectively prevents the problem of lens damage or poor light and shadow effects caused by paint adhering to the lens surface. The entire structure is simple and compact and flexible to use.

[0045] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A recessed lamp, characterized in that: It comprises a power supply (1), a heat sink (2), a light source assembly (3), an adjustment ring assembly (4) and a face ring (5); A power line of the power supply (1) passes through the heat sink (2) and is connected to the light source assembly (3); The light source assembly (3) is arranged in the heat sink (2) and abuts against the adjustment ring assembly (4); The surface ring (5) is arranged at the bottom end of the radiator (2); The adjusting ring assembly (4) is arranged on the inner side of the face ring (5) and is detachably connected to the face ring (5).

2. The embedded lamp according to claim 1, characterized in that: The adjusting ring assembly (4) comprises a first adjusting ring (41), a second adjusting ring (42) and a third adjusting ring (43); The first adjustment ring (41), the second adjustment ring (42) and the third adjustment ring (43) are arranged in sequence from the inside to the outside, and the centers of the first adjustment ring (41), the second adjustment ring (42) and the third adjustment ring (43) overlap.

3. The embedded lamp according to claim 2, characterized in that: The first adjustment ring (41) includes a wide diameter portion (411) and a narrow diameter portion (412); A plurality of steps (413) are provided on the inner side wall of the wide diameter portion (411), and the steps (413) are used to place and limit the light source assembly (3); The second adjustment ring (42) is sleeved on the wide diameter portion (411); The narrow diameter portion (412) is arranged below the wide diameter portion (411) and is connected to the wide diameter portion (411).

4. The embedded lamp according to claim 2, characterized in that: A plurality of sliding grooves (431) are provided on the outer side wall of the third adjustment ring (43); A plurality of the sliding grooves (431) are evenly arranged along the circumferential direction of the third adjustment ring (43); The face ring (5) is provided with a protrusion (51) for use in conjunction with the sliding groove (431).

5. The embedded lamp according to claim 4, characterized in that: The sliding groove (431) includes a first groove portion (4311) and a second groove portion (4312); The first groove portion (4311) and the second groove portion (4312) are sequentially arranged along the circumferential direction of the third adjustment ring (43), and the first groove portion (4311) and the second groove portion (4312) are connected; The first groove portion (4311) is connected to the top end of the third adjustment ring (43) and is used to enable the protrusion (51) to move up and down in the first groove portion (4311); The groove height of the second groove portion (4312) is smaller than the groove height of the first groove portion (4311), and a convex portion (4313) is provided on the top end side of the second groove portion (4312) close to the first groove portion (4311).

6. The recessed lamp according to claim 1, characterized in that: The radiator (2) comprises a body (21), a plurality of convection grooves and a through groove (22); A plurality of convection grooves are symmetrically arranged in the body (21); The through groove (22) is provided on the body (21) and is communicated with the convection groove.

7. The recessed lamp according to claim 3, characterized in that: The light source assembly (3) comprises a light source (31), a light source mounting plate (32) and a lens portion (33); The light source (31) is mounted on the light source mounting plate (32); The light source mounting plate (32) is arranged on the top end of the lens portion (33); The lens portion (33) is arranged at the lower end of the radiator (2), and the bottom end of the lens (331) abuts against the step (413) of the first adjustment ring (41).

8. The recessed lamp according to claim 7, characterized in that: The light source (31) includes any one of a COB light source and a patch light source.

9. The recessed lamp according to claim 7, characterized in that: The lens portion (33) includes a lens (331) and a lens housing (332); The lens (331) is arranged in the lens housing (332); The light source mounting plate (32) is fixed to the lens housing (332) by screws.

10. The recessed lamp according to claim 2, characterized in that: A movable gap is provided between the second adjustment ring (42) and the first adjustment ring (41).