Conversion head for converting double-pin lamp
By designing an adjustable plug structure and conductive components, the problem of existing adapters being unable to adapt to different plug sizes has been solved, enabling flexible combinations with single and double plug lamps and expanding the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI QIANRUN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-01
AI Technical Summary
Existing dual-pin lamp adapters have fixed pin spacing and depth, which cannot adapt to the size differences of different pin lamps, limiting their applicability and making them unsuitable for use with single-pin lamps.
The design incorporates adjustable slots, plug-in posts, telescopic rods, and conductive plates. The spacing and height of the plug-in posts can be adjusted via the adjustment holes, adjustment tubes, and the elastic plates and conductive rings of the conductive components. This design supports the installation of dual-pin lamps of different sizes and can be assembled with single-pin lamps.
The adapter has been expanded to accommodate two-pronged light fixtures of different sizes and can be used in combination with single-pronged light fixtures, thus improving its flexibility and applicability.
Smart Images

Figure CN224188565U_ABST
Abstract
Description
An adapter for converting two-pin lamps. Technical Field
[0001] This utility model relates to the field of lighting fixture components technology, and more specifically, to an adapter for converting two-pin lamps. Background Technology
[0002] There are various specifications for light-emitting lamps, including two-prong lamp holders and single-prong lamp holders, and an adapter is required during the use of the lamps.
[0003] Currently, commonly used adapters for two-prong lamps can only be used in combination with a certain range of lamps, and cannot be used in combination with single-prong lamps without changing the structural components. For example, the adapter for converting two-prong lamps disclosed in CN 222868279 U includes: an adapter cap having an end wall and a peripheral wall surrounding the end wall, the end wall and the peripheral wall forming a mounting chamber, the mounting chamber having a socket for the two prongs to extend into; and a conductive element including a main body and connecting portions extending from both sides of the main body into the socket for electrical connection with the two prongs.
[0004] As can be seen from the above-disclosed scheme, the spacing of the pins in the adapter is fixed, which in turn makes the spacing and depth of the sockets fixed. When used with lamps that have different pin spacing and different insertion depths, it may not be applicable, thus narrowing the scope of application. Furthermore, when assembling with plug-in lamps, the structural components of the adapter need to be modified. Summary of the Invention
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an adapter for converting two-prong lamps. This adapter, through the design of a strip hole, plug posts, telescopic rod, and conductive plate, allows the spacing and height of the two plug posts to be adjusted according to actual conditions, facilitating the installation of two-prong lamps of different sizes and increasing its applicability. Furthermore, the adapter's adjustment hole, adjustment tube, and the elastic plate and conductive ring in the conductive component facilitate adjustment of the telescopic position, thereby enabling the adapter to be assembled and used with single-prong lamps.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] An adapter for converting two-prong lamps includes an adapter body, which includes an adapter cap. One end of the adapter cap has a mounting groove, and the other end has a central groove. A conductive component is fixedly embedded in the bottom of the mounting groove. Symmetrical plug-in components are movably connected to the surface of the conductive component. An adapter is threaded to the inner wall of the central groove. One end of the adapter is threaded to an adjusting tube, the surface of which is movably connected to the surface of the conductive component. This adapter for converting two-prong lamps allows the spacing and height of the two plug-in components to be adjusted according to actual conditions through the provided slot, plug-in post, telescopic rod, and conductive plate. This facilitates the installation of two-prong lamps of different sizes, increasing its applicability. Furthermore, the adjusting hole and adjusting tube in the adapter, as well as the elastic plate and conductive ring in the conductive component, facilitate the adjustment of the telescopic position, thus allowing the adapter to be assembled and used with single-prong lamps.
[0008] Furthermore, the conductive component includes a conductive plate, on the surface of which an elastic plate is fixedly connected. The elastic plate is wavy in shape, and a connecting block is fixedly connected to one end of the elastic plate. A conductive ring is fixedly connected to one end of the connecting block. The elastic plate is made of beryllium copper alloy, which not only has good conductivity but also good elasticity, enabling the conductive ring to have a telescopic function.
[0009] Furthermore, the plug-in assembly includes a plug-in post, one end of which is threadedly connected to a telescopic rod, one end of which has a plug-in hole, and an anti-slip sleeve is fixedly fitted onto the surface of the telescopic rod. The telescopic rod can be adjusted in its telescopic position, thereby adjusting the depth of the plug-in hole.
[0010] Furthermore, the bottom of the mounting groove has an inlay groove, the bottom of the inlay groove has a strip-shaped hole, and a locking screw is movably connected to the inner wall of the strip-shaped hole. One end of the locking screw is threadedly connected to one end of the plug-in post. The strip-shaped hole and the locking screw facilitate locking the moving position of the plug-in post.
[0011] Furthermore, one end of the adapter has an adjustment hole with an internal thread on the inner wall of the adjustment hole, and the surface of the adjustment tube has an external thread that matches the internal thread of the adjustment hole. One end of the adjustment tube has a slot, and the adjustment tube has a telescopic function. Moreover, the slot is used to position the conductive ring, which facilitates the connection of single-pin lamps.
[0012] Furthermore, the inner wall of the central groove has internal threads, the cross-sectional shape of the central groove is T-shaped, and the inner wall of one end of the central groove abuts against one end of the adapter. The central groove can restrict the installation position of the adapter and facilitate the installation and removal of the adapter.
[0013] Furthermore, the bottom of the strip-shaped hole is connected to a clearance groove, and the inner wall of the clearance groove is movably connected to one end of the locking screw. The clearance groove can prevent one end of the locking screw from protruding from the bottom surface of the adapter cap.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) This solution allows the spacing and height of the two plugs to be adjusted according to the actual situation by setting the strip hole, plug post, telescopic rod and conductive plate, which facilitates the installation of double plug lamps of different sizes and increases the scope of application.
[0016] (2) This solution uses the adjustment hole and adjustment tube of the adapter and the elastic plate and conductive ring of the conductive component to facilitate the adjustment of the telescopic position, so that the adapter can be assembled and used with single-pin lamps. Attached Figure Description
[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 is a schematic diagram of the conductive component structure of this utility model;
[0019] Figure 3 is a schematic diagram of the adapter structure of this utility model;
[0020] Figure 4 is a schematic diagram of the plug-in assembly structure of this utility model;
[0021] Figure 5 is a cross-sectional view of the adapter cap structure of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Adapter body; 11. Adapter cap; 12. Mounting slot; 13. Center slot; 14. Embedding slot; 15. Strip hole; 16. Clearance slot; 2. Adapter; 21. Adjustment hole; 22. Adjustment tube; 23. Slot; 3. Conductive component; 31. Conductive plate; 32. Elastic plate; 33. Connecting block; 34. Conductive ring; 4. Plug-in component; 41. Plug-in post; 42. Telescopic rod; 43. Plug-in hole; 44. Anti-slip sleeve; 45. Locking screw. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Example 1
[0026] Please refer to Figures 1-5. An adapter for converting two-pin lamps includes an adapter body 1, which includes an adapter cap 11. One end of the adapter cap 11 has a mounting groove 12, and the other end has a central groove 13. A conductive component 3 is fixedly embedded in the bottom of the mounting groove 12. The conductive component 3 includes a conductive plate 31, which is fixedly embedded in the groove 14, ensuring that the plug pin 41 remains in contact with it for conductivity during adjustment. An elastic plate 32 is fixedly connected to the surface of the conductive plate 31. The elastic plate 32 is wavy in shape, and a connecting block 33 is fixedly connected to one end of the elastic plate 32. A conductive ring 34 is fixedly connected to one end of the connecting block 33. The elastic plate 32 is made of beryllium copper alloy, which not only has good conductivity but also good elasticity, allowing the conductive ring 34 to extend and retract. The surface of component 3 is movably connected to symmetrical plug-in components 4. Plug-in components 4 include plug-in posts 41, one end of which is threadedly connected to a telescopic rod 42. Both plug-in posts 41 and telescopic rod 42 are made of conductive metal. One end of the telescopic rod 42 has a plug-in hole 43. An arc-shaped clip is provided inside the plug-in hole 43 to ensure stable contact with the lamp pin. An anti-slip sleeve 44 is fixedly fitted on the surface of the telescopic rod 42. The telescopic rod 42 can be adjusted in its telescopic position, thereby adjusting the depth of the plug-in hole 43. The inner wall of the central groove 13 is threadedly connected to an adapter 2. One end of the adapter 2 contacts the conductive ring 34 without affecting its conductivity. At the same time, it facilitates the connection and conductivity when assembled with a single-pin lamp. One end of the adapter 2 is threadedly connected to an adjusting tube 22. The surface of the adjusting tube 22 is movably connected to the surface of the conductive component 3.
[0027] The bottom of the mounting slot 12 has an inlay slot 14, and the bottom of the inlay slot 14 has a strip hole 15. The inner wall of the strip hole 15 is movably connected to a locking screw 45. One end of the locking screw 45 is threaded to one end of the plug-in post 41. The strip hole 15 and the locking screw 45 facilitate locking the moving position of the plug-in post 41. One end of the adapter 2 has an adjustment hole 21, and the inner wall of the adjustment hole 21 has an internal thread. The surface of the adjustment tube 22 has an external thread that matches the internal thread of the adjustment hole 21. One end of the adjustment tube 22 has a slot 23. The adjustment tube 22 has a telescopic function and the conductive ring 34 is positioned through the slot 23, which facilitates the connection of the single-pin lamp.
[0028] The inner wall of the center groove 13 has internal threads, and the cross-sectional shape of the center groove 13 is T-shaped. One end of the inner wall of the center groove 13 abuts against one end of the adapter 2. The center groove 13 can restrict the installation position of the adapter 2 and facilitate the installation and removal of the adapter 2. The bottom of the strip hole 15 is connected to the clearance groove 16. The inner wall of the clearance groove 16 is movably connected to one end of the locking screw 45. The clearance groove 16 can prevent one end of the locking screw 45 from protruding from the bottom surface of the adapter cap 11.
[0029] When using this adapter for converting two-prong lamps, the spacing and total length of the two connector pins 41 can be adjusted according to the actual distance and length of the two prongs of the two-prong lamp. To adjust the spacing between the two connector pins 41, loosen the locking screw 45 counterclockwise with a screwdriver, then move it horizontally for adjustment. When adjusting the extension / retraction position of the adjusting tube 22, rotating it counterclockwise extends it upwards out of the adjusting hole 21, increasing the total length of the connector pin 41; rotating it clockwise retracts it downwards into the adjusting hole 21, decreasing the total length of the connector pin 41. Simultaneously, the extension / retraction length of the telescopic rod 42 needs to be adjusted to avoid affecting the connection between the two-prong lamp and the adapter. When installing a single-prong lamp, the extension length of the telescopic rod 42 can be adjusted according to actual needs. Rotating the telescopic rod 42 counterclockwise increases its extension length, while rotating it clockwise shortens it. After the telescopic rod 42 has completed its extension, pull the conductive ring 34 to lock it into the slot 23 at one end of the telescopic rod 42. At this time, the elastic plate 32 generates tensile force, making the locking position of the conductive ring 34 secure. Then, according to the actual size of the single-prong lamp, the total length of the plug 41 can be shortened to avoid affecting the assembly of the single-prong lamp and the adapter. Alternatively, the plug 41 can be removed to avoid affecting the assembly of the single-prong lamp and the adapter.
[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A conversion head for converting a two-pin light fixture, comprising a conversion head body (1), characterized in that: The adapter body (1) includes an adapter cap (11), one end of which has a mounting groove (12) and the other end of which has a central groove (13). A conductive component (3) is fixedly embedded in the bottom of the mounting groove (12). A symmetrical plug-in component (4) is movably connected to the surface of the conductive component (3). An adapter (2) is threadedly connected to the inner wall of the central groove (13). An adjusting tube (22) is threadedly connected to one end of the adapter (2). The surface of the adjusting tube (22) is movably connected to the surface of the conductive component (3).
2. The adapter for converting two-pin lamps according to claim 1, characterized in that: The conductive component (3) includes a conductive plate (31), an elastic plate (32) is fixedly connected to the surface of the conductive plate (31), the elastic plate (32) is wavy, a connecting block (33) is fixedly connected to one end of the elastic plate (32), and a conductive ring (34) is fixedly connected to one end of the connecting block (33).
3. The adapter for converting two-pin lamps according to claim 1, characterized in that: The plug-in assembly (4) includes a plug-in post (41), one end of which is threadedly connected to a telescopic rod (42), one end of which has a plug-in hole (43), and an anti-slip sleeve (44) is fixedly fitted onto the surface of the telescopic rod (42).
4. A conversion head for converting a two-pin light fixture according to claim 3, wherein: The bottom of the mounting groove (12) has an inlay groove (14), the bottom of the inlay groove (14) has a strip hole (15), and the inner wall of the strip hole (15) is movably connected with a locking screw (45). One end of the locking screw (45) is threadedly connected to one end of the plug post (41).
5. The conversion head for converting a two-pin light fixture of claim 1, wherein: One end of the adapter (2) has an adjustment hole (21), the inner wall of the adjustment hole (21) has an internal thread, the surface of the adjustment tube (22) has an external thread that matches the internal thread of the adjustment hole (21), and one end of the adjustment tube (22) has a slot (23).
6. The adapter for converting two-pin lamps according to claim 1, characterized in that: The inner wall of the central groove (13) has an internal thread, the cross-sectional shape of the central groove (13) is T-shaped, and the inner wall of one end of the central groove (13) abuts against one end of the adapter (2).
7. The adapter for converting a two-pin light fixture of claim 4, wherein: The bottom of the strip hole (15) is connected to a clearance groove (16), and the inner wall of the clearance groove (16) is movably connected to one end of the locking screw (45).
Citation Information
Patent Citations
Conversion head for converting double-pin lamp
CN222868279U