Open-mounted down lamp
By precisely matching the positioning groove and the connecting part, designing the stepped fixing holes and using elastic connection, the problem of loose bolt connections in surface-mounted downlights is solved, achieving stable installation and an aesthetically pleasing lighting design, simplifying the installation process and extending the service life.
Patent Information
- Application Number
- CN202520459649.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The mounting plates of existing surface-mounted downlights are easily loosened by bolt connections, leading to instability over long-term use and affecting both performance and aesthetics.
The system employs a precise fit between the positioning groove and the connecting part, combined with a stepped fixing hole design. The elastic connecting part is tightly fitted with the positioning groove, and abutment plates and limit plates are set to enhance connection stability. The lighting components are fixed by snap-fit connection, and the cable outlet is designed to neatly accommodate the cable.
It improves installation stability and tensile strength, simplifies the installation process, extends the service life of connectors, and enhances the aesthetics and safety of the lighting fixtures.
Smart Images

Figure CN223840256U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a surface-mounted downlight, belonging to the field of indoor lighting fixtures. Background Technology
[0002] Surface-mounted downlights are ceiling-mounted lighting fixtures that project light downwards onto the ceiling surface. LED surface-mounted downlights are directional lighting fixtures, meaning only the area opposite the light source receives light. Their beam angle is focused, resulting in concentrated light and strong contrast between light and shadow. This makes the illuminated object stand out more, provides higher luminous intensity, and enhances a quiet atmosphere.
[0003] Surface-mounted downlights are generally fixed directly to the location where the light fixture needs to be installed via a base plate. They can also be installed using an auxiliary mounting plate. Existing mounting plates are directly installed on the bottom of the downlight with bolts, but the connectors are prone to loosening, which is not conducive to long-term use and ensuring stable performance. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies of the existing technology and to provide a surface-mounted downlight.
[0005] A surface-mounted downlight includes a lamp holder with a lighting component inside. The bottom of the lamp holder has a mounting portion for fixing to the external environment and a positioning portion. The positioning portion includes positioning plates, and a positioning groove is formed between the positioning plates for fixing the mounting portion. The mounting portion includes a fixing portion and connecting portions vertically disposed on both sides of the fixing portion. The connecting portion has a connecting hole. The positioning groove has a first fixing hole and a second fixing hole concentrically arranged on both sides and fixed to the connecting hole by bolts. The cross-section of the first fixing hole is larger than that of the second fixing hole. The first and second fixing holes are nested in a stepped manner, allowing the bolt head to be located within the first fixing hole. The precise fit between the positioning groove and the connecting portion ensures a more secure connection between the mounting portion and the lamp holder, avoiding the loosening problem common with traditional direct bolt connections. The stepped nesting of the first and second fixing holes allows the bolt head to be fully embedded in the first fixing hole, increasing connection stability and resistance to loosening. The positioning groove formed between the positioning plates allows for quick alignment of the mounting portion, simplifying the installation process and reducing installation time and operational difficulty. The bolt head is fully embedded in the first fixing hole, which not only increases the stability of the connection but also improves the tensile strength of the overall structure. This also prevents the connector from being exposed, enhancing the overall aesthetics of the lighting fixture.
[0006] Preferably, the connecting part is elastic and abuts against the inner wall of the positioning groove to form a tight fit. The elasticity of the connecting part allows it to closely conform to the inner wall of the positioning groove, forming a stable tight-fit structure. This design effectively prevents the lamp from loosening due to vibration or external force during use, further improving installation stability. Because the tight fit between the connecting part and the inner wall of the positioning groove shares some of the external force, the stress on the bolts is reduced, lowering the risk of bolt loosening and extending the service life of the connector. The elastic connecting part can adapt to the dimensional deviation of the positioning groove, eliminating the need for precise alignment during installation, simplifying the installation process and improving installation efficiency.
[0007] Furthermore, an abutment plate is provided on the inner wall of the positioning groove, and the outer wall of the abutment plate abuts against the outer wall of the connecting part. The abutment plate provides an additional support point for the connecting part, increasing the contact area between the connecting part and the inner wall of the positioning groove, and further enhancing the stability of the connection. The presence of the abutment plate can effectively prevent the connecting part from deforming under force, ensuring that the connecting part and the inner wall of the positioning groove always maintain close contact.
[0008] Furthermore, a limiting plate is provided on the inner wall of the positioning groove, and the bottom of the connecting part abuts against the limiting plate to form a limiting connection. The setting of the limiting plate, together with the abutment between the connecting part and the limiting plate to form a limiting connection, further enhances the precise positioning of the connecting part during installation, avoids incorrect installation or instability, and helps to extend the service life of the downlight.
[0009] Preferably, the fixing part is provided with mounting holes for bolting connection to the external environment. By providing mounting holes on the mounting part, the downlight can be fixed to the external environment more easily, and the bolt connection method makes the fixation more secure and reliable, ensuring that the downlight will not loosen due to vibration or other external factors during use.
[0010] Preferably, the lamp holder has a mounting groove, and the lighting component is disposed within the mounting groove. The lighting component includes a lampshade and a lamp plate, with a plurality of LED beads arranged on the lamp plate for illumination. The mounting groove provides a fixed and stable mounting position for the lighting component, effectively preventing loosening or displacement of the lighting component during long-term use. The fixing of the lamp plate and lampshade within the mounting groove ensures that the lighting component is always in optimal working condition, improving safety and reliability in use.
[0011] Furthermore, the inner wall of the mounting groove is provided with a snap-fit groove, and the lampshade is provided with a snap fastener that engages with the snap-fit groove. The cooperation between the snap-fit groove and the snap fastener allows the lampshade to be firmly fixed to the lamp holder, simplifying installation and facilitating subsequent disassembly and maintenance. When cleaning, replacing the lampshade, or repairing the lighting components is required, the snap-fit connection method makes the disassembly of the lampshade easier and faster, eliminating the need to disassemble complex fixing devices and saving time and effort.
[0012] Preferably, the lamp holder has a cable outlet hole at the bottom. Through the cable outlet hole, the cable can be neatly led out from the bottom of the lamp holder, effectively avoiding tangling or messiness during installation.
[0013] The beneficial effects of this utility model are as follows: The precise fit between the positioning groove and the connecting part ensures a more secure connection between the mounting part and the lamp holder, avoiding the problem of easy loosening associated with traditional direct bolt connections. The stepped nesting arrangement of the first and second fixing holes allows the bolt head to be fully embedded in the first fixing hole, increasing the stability and anti-loosening ability of the connection. The positioning groove formed between the positioning plates allows for quick alignment of the mounting part, simplifying the installation process and reducing installation time and operational difficulty. The bolt head being fully embedded in the first fixing hole not only increases the stability of the connection but also improves the tensile strength of the overall structure. This also prevents the connecting parts from being exposed, enhancing the overall aesthetics of the lamp. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.
[0015] Figure 1 This is a structural diagram of the main body of this utility model;
[0016] Figure 2 This is a structural diagram of the present invention with the lampshade removed;
[0017] Figure 3 This is a rear view structural diagram of the present invention;
[0018] Figure 4 for Figure 3 Structural diagram excluding the mounting section;
[0019] Figure 5 This is a structural diagram of the installation section;
[0020] Figure 6 This is a structural diagram of the lampshade;
[0021] In the diagram, 1 is the lamp holder; 2 is the positioning part; 21 is the positioning plate; 22 is the positioning groove; 23 is the first fixing hole; 24 is the second fixing hole; 25 is the abutment plate; 26 is the limiting plate; 27 is the buckle groove; 28 is the mounting groove; 29 is the wire outlet hole; 3 is the lighting component; 31 is the lampshade; 32 is the buckle; 33 is the lamp board; 34 is the lamp bead; 4 is the mounting part; 41 is the fixing part; 42 is the mounting hole; 43 is the connecting part; and 44 is the connecting hole. Detailed Implementation
[0022] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.
[0023] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.
[0024] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.
[0025] like Figure 1-6 The illustration shows an embodiment of a surface-mounted downlight according to this utility model. It includes a lamp holder 1, within which a lighting component 3 is housed. The bottom of the lamp holder 1 has a mounting portion 4 for fixing to the external environment. The bottom of the lamp holder 1 also has a positioning portion 2, which includes positioning plates 21. A positioning groove 22 for fixing the mounting portion 4 is formed between the positioning plates 21. The mounting portion 4 includes a fixing portion 41 and connecting portions 43 vertically disposed on both sides of the fixing portion 41. The connecting portion 43 has connecting holes 44. The positioning groove 22 has concentrically arranged first fixing holes 23 and second fixing holes 24 on both sides, which are fixedly connected to the connecting holes 44 by bolts. The cross-section of the first fixing hole 23 is larger than that of the second fixing hole 24. The first fixing holes 23 and the second fixing holes 24 are nested in a stepped configuration, such that the head of the bolt is located within the first fixing hole 23. Through the precise fit between the positioning groove 22 and the connecting portion 43, the connection between the mounting portion 4 and the lamp holder 1 is ensured to be more secure, avoiding the problem of easy loosening caused by traditional direct bolt connections. The stepped nesting arrangement of the first fixing hole 23 and the second fixing hole 24 allows the bolt head to be fully embedded in the first fixing hole 23, increasing the stability and anti-loosening ability of the connection. The positioning groove 22 formed between the positioning plates 21 can quickly align with the mounting part 4, simplifying the installation process and reducing installation time and operational difficulty. The bolt head being fully embedded in the first fixing hole 23 not only increases the stability of the connection but also improves the tensile strength of the overall structure. This also prevents the connectors from being exposed, enhancing the overall aesthetics of the lighting fixture.
[0026] The connecting part 43 is elastic and abuts against the inner wall of the positioning groove 22 to form a tight fit. The elasticity of the connecting part 43 allows it to closely conform to the inner wall of the positioning groove 22, forming a stable tight-fit structure. This design effectively prevents loosening of the lamp due to vibration or external force during use, further improving installation stability. Because the tight fit between the connecting part 43 and the inner wall of the positioning groove 22 shares some of the external force, the stress on the bolts is reduced, lowering the risk of bolt loosening and extending the service life of the connector. The elastic connecting part 43 can adapt to dimensional deviations of the positioning groove 22, eliminating the need for precise alignment during installation, simplifying the installation process and improving installation efficiency.
[0027] This embodiment differs from the previous embodiment in that an abutment plate 25 is provided on the inner wall of the positioning groove 22, and the outer wall of the abutment plate 25 abuts against the outer wall of the connecting part 43. The abutment plate 25 provides an additional support point for the connecting part 43, thereby increasing the contact area between the connecting part 43 and the inner wall of the positioning groove 22 and further enhancing the stability of the connection. The presence of the abutment plate 25 can effectively prevent the connecting part 43 from deforming under force, ensuring that the connecting part 43 and the inner wall of the positioning groove 22 always maintain close contact.
[0028] A limiting plate 26 is provided on the inner wall of the positioning groove 22, and the bottom of the connecting part 43 abuts against the limiting plate 26 to form a limiting connection. The setting of the limiting plate 26, together with the abutment between the connecting part 43 and the limiting plate 26 to form a limiting connection, further enhances the accurate positioning of the connecting part 43 during installation, avoids incorrect installation or instability, and helps to extend the service life of the downlight.
[0029] The fixing part 41 is provided with mounting holes 42 for bolting connection with the external environment. By providing mounting holes 42 on the mounting part 4, the downlight can be fixed to the external environment more easily. The bolt connection method makes the fixation more secure and reliable, ensuring that the downlight will not loosen due to vibration or other external factors during use.
[0030] The lamp holder 1 has a mounting groove 28, and the lighting component 3 is disposed within the mounting groove 28. The lighting component 3 includes a lampshade 31 and a lamp plate 33, on which a plurality of LED beads 34 for illumination are arranged. The mounting groove provides a fixed and stable mounting position for the lighting component 3, effectively preventing the lighting component 3 from loosening or shifting during long-term use. The fixing of the lamp plate 33 and the lampshade 31 within the mounting groove 28 ensures that the lighting component 3 is always in optimal working condition, improving safety and reliability in use.
[0031] The inner wall of the mounting groove 28 is provided with a snap-fit groove 27, and the lampshade 31 is provided with a snap fastener 32 that engages with the snap-fit groove 27. The cooperation between the snap-fit groove 27 and the snap fastener 32 allows the lampshade 31 to be firmly fixed to the lamp holder 1, simplifying installation and facilitating subsequent disassembly and maintenance. When it is necessary to clean or replace the lampshade 31 or to repair the lighting component 3, the snap fastener 32 connection method makes the disassembly of the lampshade 31 easier and faster, without the need to disassemble complex fixing devices, saving time and effort.
[0032] The lamp holder 1 has a cable outlet hole 29 at its bottom. Through the cable outlet hole 29, the cable can be neatly led out from the bottom of the lamp holder 1, effectively avoiding tangling or messiness of the cable during installation.
[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
[0034] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims
1. A surface-mounted downlight, characterized in that: The device includes a lamp holder, which houses a lighting component. The bottom of the lamp holder has a mounting portion for fixing to the external environment and a positioning portion. The positioning portion includes positioning plates, and a positioning groove is formed between the positioning plates for fixing the mounting portion. The mounting portion includes a fixing portion and connecting portions vertically disposed on both sides of the fixing portion. The connecting portion has connecting holes. The positioning groove has a first fixing hole and a second fixing hole concentrically disposed on both sides and fixedly connected to the connecting holes by bolts. The cross-section of the first fixing hole is larger than that of the second fixing hole. The first fixing hole and the second fixing hole are nested in a stepped configuration such that the head of the bolt is located within the first fixing hole.
2. The surface-mounted downlight as described in claim 1, characterized in that: The connecting part is elastic and abuts against the inner wall of the positioning groove to form a tight fit.
3. The surface-mounted downlight as described in claim 2, characterized in that: The inner wall of the positioning groove is provided with an abutment plate, and the outer wall of the abutment plate abuts against the outer wall of the connecting part.
4. The surface-mounted downlight as described in claim 2 or 3, characterized in that: A limiting plate is provided on the inner wall of the positioning groove, and the bottom of the connecting part abuts against the limiting plate to form a limiting connection.
5. The surface-mounted downlight as described in claim 1, characterized in that: The fixing part is provided with mounting holes for bolting and fixing to the external environment.
6. The surface-mounted downlight as described in claim 1, characterized in that: The lamp holder has a mounting groove, and the lighting component is located in the mounting groove. The lighting component includes a lampshade and a lamp plate, and a plurality of lamp beads for lighting are arranged on the lamp plate.
7. The surface-mounted downlight as described in claim 6, characterized in that: The inner wall of the mounting groove is provided with a snap groove, and the lampshade is provided with a buckle that engages with the snap groove.
8. The surface-mounted downlight as described in claim 1, characterized in that: The lamp holder has a wire outlet hole at the bottom.