Linear lamp plug-in splicing structure
By using a male plug and female socket design, combined with guide side plates and screw fixing, the problem of insufficient splicing strength of linear lighting track profiles is solved, achieving stable connection and convenient installation, and improving the safety and light continuity of the lighting fixtures.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 深圳市耐锐科技有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-17
AI Technical Summary
The existing linear lighting fixtures have low track profile splicing strength, especially in the length direction where the tensile strength is poor, which leads to installation difficulties and poor safety and stability.
The design employs a male plug and a female socket, which are fixedly connected by guide side plates, positioning plates, and screws. Combined with guide components and buckle structure, a stable connection between the male plug and the female socket is achieved. Furthermore, a light shield covers the splicing seam, enhancing the tensile strength of the track and the ease of installation.
It improves the track splicing strength and stability of linear luminaires, simplifies the installation process, ensures the firmness of the connection and the continuity of light, and avoids light leakage.
Smart Images

Figure CN224135780U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting technology, specifically to a linear interlocking structure for lighting fixtures. Background Technology
[0002] Linear lighting fixtures are lighting fixtures that use aluminum profiles as the base material and arrange LED light strips along the length of the profile. They are mainly used in display cases and decorative lighting scenarios. Typically, linear lighting fixtures have fixed lengths and require splicing for installation based on the site environment. Existing linear lighting fixtures usually have slots on the track profiles; connectors are inserted into these slots to mate the ends of two track profiles, and then screws are used to secure the connection. Due to the high installation height in locations such as suspended ceilings, on-site splicing is difficult and inefficient.
[0003] Chinese patent CN208871560U discloses an LED lamp fitting plug, comprising two sets of lamp bodies, each set of lamp bodies having a fitting plug at its end. Each set of fitting plugs has at least one set of sliding grooves and at least one set of sliding ribs on its opposite surfaces. The sliding grooves and ribs on the two sets of fitting plugs are complementary and slidingly fitted. Positioning protrusions and concave points are provided on the mating surfaces of the two sets of fitting plugs; when properly mated, the protrusions and concave points completely match and position each other. Electrically connected metal springs are symmetrically arranged along the center line on the mating surfaces of the two sets of fitting plugs, and the electrically connected metal springs on the mating surfaces of the fitting plugs have an elastic structure.
[0004] The aforementioned existing technology connects two lamp bodies using two sets of mating plugs. The mating plugs are vertically inserted and connected via matching grooves and sliding ribs, locking them together laterally. Then, in the vertical direction, positioning protrusions and recesses align, creating a limiting lock between the two plugs and ensuring contact between the electrical connection springs on their mating surfaces. However, this existing mating plug connection has low strength, particularly poor tensile strength along its length. Furthermore, installation form and position tolerances and structural deformation tolerances can lead to poor contact of the electrical connection springs, resulting in poor safety and stability of the lamps.
[0005] Therefore, existing technologies still need to be improved and developed. Utility Model Content
[0006] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a linear lamp interlocking splicing structure that is structurally reasonable, easy to install, and structurally stable.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] The present invention discloses a linear lamp plug-in splicing structure, comprising a track, with a male plug and a female socket at each end of the track. The male plug can be paired with the female socket. The female socket has guide side plates on both sides and a positioning plate at the top. The positioning plate and the two guide side plates form a downward-opening slot on the mating surface of the female socket. The male plug has a screw hole on its upper surface. When the male plug is inserted into the slot, it engages with the guide side plate. The positioning plate has a fixing hole that matches the screw hole.
[0009] According to the above scheme, a first guide member is provided on the inner side wall of the guide side plate, and a second guide member is provided on both outer sides of the male plug. Both the first guide member and the second guide member are vertically arranged. When the male plug is inserted into the slot, the first guide member and the second guide member form a snap-fit connection in the length direction of the track.
[0010] According to the above scheme, the height of the male plug and slot is H, the height of the first guide is L1, and the height of the second guide is L2. Then L1 = 1 / 2 * H and L2 = 1 / 2 * H.
[0011] According to the above scheme, the upper end of the female socket is provided with two positioning plates, and the two positioning plates are respectively connected to the corner of the corresponding guide side plate; the two positioning plates are spaced apart from each other to form a limiting port on the mating surface of the female socket, and the upper end surface of the male plug is provided with a raised block. When the male plug is inserted into the slot, the raised block is embedded in the limiting port.
[0012] According to the above scheme, both the male plug and the female socket are provided with end face connectors. The end face connectors are embedded in the port of the track, and the end face connectors are fixedly connected to the track by screws, thereby assembling the male plug or female socket on the port of the track.
[0013] According to the above scheme, the track is provided with a top plate and a middle partition, and the top plate, the middle partition, and the two side walls of the track surround to form an assembly opening; both the male plug and the female socket are provided with a first buckle plate and a second buckle plate. The first buckle plate is located above the end face connector and forms a first notch with the end face connector at a distance, and the second buckle plate is located below the end face connector and forms a second notch with the end face connector at a distance; when the end face connector is inserted into the assembly opening, the first notch is sleeved on the top plate, and the first buckle plate is connected to the top plate by screws, and the second notch is sleeved on the middle partition, and the second buckle plate is connected to the middle partition by screws.
[0014] According to the above scheme, the lower ends of the two guide side plates are provided with light shields. When the male plug and the female socket are paired and connected, the light shields cover the splicing seam between the end faces of the two tracks.
[0015] According to the above scheme, the present invention also includes an end cap, on which a plurality of elastic fasteners are provided. Both the male plug and the female socket are provided with a middle frame hole. The end cap can cover the mating surface of the male plug or the female socket. The plurality of elastic fasteners are fastened to the middle frame hole so that the end cap and the male plug or the female socket can be detachably connected.
[0016] The advantages of this utility model are as follows: This utility model has a reasonable structure, the male plug can be paired and connected with the female socket, the male plug can be inserted into the slot from below, the positioning plate and two guide side plates cooperate to restrict the male plug, and the positioning plate and the male plug are fixedly connected with screws, which can improve the strength and stability of the track splicing, and the installation is convenient and quick. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the male plug, female plug, and end cap of this utility model;
[0018] Figure 2 This is a schematic diagram of the mating surface structure of the male and female plugs of this utility model;
[0019] Figure 3 This is a partial structural diagram of the male plug of this utility model before assembly with the track;
[0020] Figure 4 This is a partial structural diagram of the female socket and track of this utility model.
[0021] In the picture:
[0022] 1. Track; 2. Male plug; 3. Female socket; 4. End face connector; 5. End cover; 11. Top plate; 12. Middle partition; 13. Assembly port; 21. Screw hole; 22. Second guide; 23. T-block; 31. Guide side plate; 32. Positioning plate; 33. Fixing hole; 34. First guide; 35. Limiting port; 36. Light shield; 300. Slot; 41. First buckle plate; 42. Second buckle plate; 43. First notch; 44. Second notch; 51. Elastic fastener; 52. Middle frame hole. Detailed Implementation
[0023] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.
[0024] like Figure 1-4As shown, the linear lamp interlocking structure of this utility model includes a track 1. The track 1 has a male plug 2 and a female socket 3 at each end. The male plug 2 can be paired with the female socket 3. The female socket 3 has guide side plates 31 on both sides and a positioning plate 32 at its upper end. The positioning plate 32 and the two guide side plates 31 form a downward-facing slot 300 on the mating surface of the female socket 3. The male plug 2 has a screw hole 21 on its upper surface. When the male plug 2 is inserted into the slot 300, it engages with the guide side plate 32. The positioning plate 32 has a fixing hole 33 that matches the screw hole 21.
[0025] The male plug 2 and the female socket 3 are a paired structure. Specifically, the positioning plate 32 and the two guide side plates 31 on the female socket 3 form a downward-facing slot 300 on the mating surface of the female socket 3. The male plug 2 can be inserted into the slot 300 from below. The insertion of the male plug 2 between the two guide side plates 31 forms a longitudinal limit, and there is a track-length mating connection between the male plug 2 and the guide side plates 31. The upper end of the male plug 2 touches the positioning plate 32 and is fixedly connected by screws passing through the fixing hole 33 and the screw hole 21 to prevent the male plug 2 from loosening in the slot 300 on the female socket 3, ensuring a stable and strong connection between the tracks 1, and making assembly more convenient.
[0026] The inner wall of the guide side plate 31 is provided with a first guide member 34, and the outer walls of both sides of the male plug 2 are provided with second guide members 22. Both the first guide member 34 and the second guide member 22 are vertically arranged. When the male plug 2 is inserted into the slot 300, the first guide member 34 and the second guide member 22 form a snap-fit connection along the length of the track 1. The two guide side plates 31 are respectively located on both sides of the slot 300. The first guide member 34 is vertically arranged on the inner wall of the guide side plate 31, thereby forming a slide between the first guide member 34 and the female plug 3. Similarly, the second guide member 22 is vertically arranged on the outer wall of the male plug 2, and the second guide member 22 is equivalent to forming a slide with the male plug 2. Then, the male plug 2 is inserted into the slot 300 from the opening. The second guide members 22 and slides on both sides of the male plug 2 form a toothed engagement with the first guide member 34 and slides on the female socket 3, so that the first guide member 34 and the second guide member 22 form a snap-fit connection in the length direction of the track 1, thereby improving the tensile strength between the tracks 1.
[0027] It is understandable that the lengths of the first guide member 34 and the second guide member 22 correspond to the meshing area and strength of the aforementioned tooth groove fit.
[0028] Further, in order to make the male plug 2 easier to be inserted into the slot 300 for mating connection with the female socket 3, the height of the male plug 2 and the slot 300 is H, the height of the first guiding member 34 is L1, and the height of the second guiding member 22 is L2. Then L1 = 1 / 2 * H and L2 = 1 / 2 * H. It can be understood that the first guiding member 34 and the second guiding member 22 extend upward from the lower ends of the male plug 2 and the female socket 3, and the male plug 2 is fixedly connected to the positioning plate 32 on the female socket 3 by screws. Moreover, the heights of the first guiding member 34 and the second guiding member 22 are half of the heights of the male plug 2 and the female socket 3. When the male plug 2 and the female socket 3 are assembled, the insertion stroke of the male plug 2 into the slot 300 is L1 or L2, and the assembly is more rapid.
[0029] Two positioning plates 32 are provided at the upper end of the female socket 3. The two positioning plates 32 are respectively corner-connected to the corresponding guiding side plates 31; the two positioning plates 32 are spaced apart from each other to form a limiting opening 35 on the mating surface of the female socket 3. A convex character block 23 is provided on the upper end surface of the male plug 2. When the male plug 2 is inserted into the slot 300, the convex character block 23 is embedded in the limiting opening 35. The convex character block 23 is provided on the upper end surface of the male plug 2. The convex character block 23 is integrally formed with the male plug 2 and forms a "convex" shape. When the male plug 2 is inserted into the slot 300, the convex character block 23 is embedded in the limiting opening 35, making the connection between the male plug 2 and the female socket 3 more stable.
[0030] End face connectors 4 are provided on both the male plug 2 and the female socket 3. The end face connectors 4 are embedded in the ports of the track 1 and are fixedly connected to the track 1 by screws, thereby assembling the male plug 2 or the female socket 3 on the port of the track 1. The end face connectors 4 are used to fix the male plug 2 and the female socket 3 at the ends of the track 1, enabling the tracks 1 to be paired and connected to each other to form a longer structure for use, facilitating the installation and layout of linear lamps.
[0031] Furthermore, the track 1 is provided with a top plate 11 and a middle partition 12, and the top plate 11, the middle partition 12 and the two side walls of the track 1 surround to form an assembly opening 13; the male plug 2 and the female socket 3 are each provided with a first buckle plate 41 and a second buckle plate 42, the first buckle plate 41 is provided above the end face connector 4 and forms a first notch 43 with the end face connector 4 at a distance, the second buckle plate 42 is provided below the end face connector 4 and forms a second notch 44 with the end face connector 4 at a distance; when the end face connector 4 is inserted into the assembly opening 13, the first notch 43 is sleeved on the top plate 11, and the first buckle plate 41 is connected to the top plate 11 by screws, the second notch 44 is sleeved on the middle partition 12, and the second buckle plate 42 is connected to the middle partition 12 by screws. The end face connector 4 is paired with the assembly port 13 of the mating rail 1, and the top plate 11 and the middle partition 12 of the mating rail 1 are mated and engaged through the first notch 43 and the second notch 44, thereby achieving rapid mating and positioning, and improving the structural strength of the male plug 2 and female socket 3 installed on the rail 1.
[0032] Both guide side plates 31 have a light-shielding plate 36 at their lower ends. When the male plug 2 and the female socket 3 are mated and connected, the light-shielding plate 36 covers the splicing seam between the end faces of the two tracks 1. It is understood that the male socket 2 is embedded in the slot 300 on the female socket 3. To ensure there is no obvious break between the spliced tracks 1, the female socket 3 is preferably assembled on the track 1 with its mating surface embedded in the assembly opening 13, as shown in the attached figure. Figure 4 As shown, the outer end of the female socket 3 is flush with the port of the track 1. Then, after the male plug 2 on the other track 1 is inserted into the female socket 3, the end faces of the two tracks 1 are aligned and fit together. Of course, a seam will appear on the side wall at the joint of the two tracks 1. Due to structural and assembly tolerances, there is light leakage at this seam. Therefore, a light shield 36 is provided at the lower end of the guide side plate 31. After the male plug 2 and the female socket 3 are paired and connected, the light shield 36 can cover the seam to prevent light leakage.
[0033] This utility model also includes an end cap 5, which is provided with several elastic fasteners 51. Both the male plug 2 and the female socket 3 are provided with a central frame hole 52. The end cap 5 can cover the mating surface of the male plug 2 or the female socket 3. The elastic fasteners 51 are fastened to the central frame hole 52, thus allowing the end cap 5 to be detachably connected to the male plug 2 or the female socket 3. Before leaving the factory, the linear lighting fixture of this utility model has male plugs 2 and female sockets 3 installed at both ends of the track 1. Furthermore, end caps 5 are provided at both ends of the track 1 to close the ports, allowing individual tracks 1 to be used directly, or the corresponding end caps 5 can be removed during splicing, and the male plug 2 and female socket 3 can be paired and connected to splice multiple tracks 1.
[0034] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A linear lamp plug-in splicing structure, comprising a track (1), wherein a male plug (2) and a female socket (3) are respectively provided at both ends of the track (1), the male plug (2) being able to be paired and connected with the female socket (3), characterized in that: The female socket (3) is provided with guide side plates (31) on both sides, and a positioning plate (32) is provided at the upper end of the female socket (3). The positioning plate (32) and the two guide side plates (31) form a downward-facing slot (300) on the mating surface of the female socket (3). The male plug (2) is provided with a screw hole (21) on the upper surface. When the male plug (2) is inserted into the slot (300), it is connected with the guide side plate (31). The positioning plate (32) is provided with a fixing hole (33) that matches the screw hole (21).
2. The linear luminaire pair-plug connection structure according to claim 1, characterized in that: The inner side wall of the guide side plate (31) is provided with a first guide (34), and the outer sides of the male plug (2) are provided with second guides (22). The first guide (34) and the second guide (22) are both vertically arranged. When the male plug (2) is inserted into the slot (300), the first guide (34) and the second guide (22) form a snap-fit connection in the length direction of the track (1).
3. The linear light fixture pair-plug connection structure according to claim 2, characterized in that: The height of the male plug (2) and the slot (300) is H, the height of the first guide (34) is L1, and the height of the second guide (22) is L2. Then L1 = 1 / 2 * H and L2 = 1 / 2 * H.
4. The linear lamp pair-plugging joint structure according to claim 2, characterized in that: The upper end of the female socket (3) is provided with two positioning plates (32), and the two positioning plates (32) are respectively connected to the corner of the corresponding guide side plate (31); the two positioning plates (32) are spaced apart from each other to form a limiting port (35) on the mating surface of the female socket (3), and the upper end surface of the male plug (2) is provided with a raised block (23). When the male plug (2) is inserted into the slot (300), the raised block (23) is embedded in the limiting port (35).
5. The linear light fixture pair-and-plug connection structure of claim 1, wherein: Both the male plug (2) and the female socket (3) are provided with end face connectors (4). The end face connectors (4) are embedded in the port of the track (1). The end face connectors (4) and the track (1) are fixedly connected by screws, so that the male plug (2) or the female socket (3) can be assembled on the port of the track (1).
6. The linear light fixture pair-and-plug connection structure of claim 1, wherein: The track (1) is provided with a top plate (11) and a middle partition (12). The top plate (11), the middle partition (12) and the two side walls of the track (1) surround to form an assembly opening (13). The male plug (2) and the female socket (3) are each provided with a first buckle plate (41) and a second buckle plate (42). The first buckle plate (41) is located above the end face connector (4) and forms a first notch (43) with the end face connector (4) at a distance. The second buckle plate (42) is located below the end face connector (4) and forms a second notch (44) with the end face connector (4) at a distance. When the end face connector (4) is inserted into the assembly opening (13), the first notch (43) is sleeved on the top plate (11) and the first buckle plate (41) is connected to the top plate (11) by screws. The second notch (44) is sleeved on the middle partition (12) and the second buckle plate (42) is connected to the middle partition (12) by screws.
7. The linear light fixture pair-plug connection structure according to claim 6, characterized in that: The lower ends of the two guide side plates (31) are provided with light shields (36). When the male plug (2) and the female socket (3) are paired and connected, the light shields (36) cover the splice seam between the end faces of the two rails (1).
8. The linear light fixture pair-and-plug connection structure of claim 1, wherein: It also includes an end cap (5), which is provided with several elastic fasteners (51). Both the male plug (2) and the female socket (3) are provided with a middle frame hole (52). The end cap (5) can cover the mating surface of the male plug (2) or the female socket (3). Several elastic fasteners (51) are fastened to the middle frame hole (52) so that the end cap (5) can be detachably connected to the male plug (2) or the female socket (3).
Citation Information
Patent Citations
LED lamp butt joint plug
CN208871560U