Table lamp base structure

Abstract

A table lamp base structure comprises a base and a rotating seat, the rotating seat is rotatably connected to the rear side of the upper surface of the base, the table lamp base structure further comprises an electric connecting assembly, the electric connecting assembly is arranged in the base and the rotating seat, and an electric wire is connected into a table lamp from the rear surface of the base and electrically connected to the electric connecting assembly; the electric connection assembly comprises a wire inlet seat, a lower seat and an upper seat, the lower seat and the upper seat are located in the rotating seat, the upper seat and the rotating seat are fixedly connected, the lower seat and the upper seat are hollow cylinders with single-side openings, the lower seat is provided with an upward opening, the upper seat is provided with a downward opening, the upper seat is inserted into the lower seat, and the outer wall of the upper seat is in contact fit with the inner wall of the lower seat to form electric connection. A cylindrical upper pin extending downwards is arranged in the center of the upper seat, the length of the upper pin is smaller than that of the upper seat, a cylindrical lower pin is arranged in the center of the lower seat in an upward protruding manner, and the lower pin extends into the upper seat and is in contact with the upper pin to form electric connection; when the rotating base rotates relative to the base, the lower base is kept fixed, and the upper base is inserted into the lower base and rotates along with the rotating base.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and more specifically to a table lamp base structure. Background Technology

[0002] Table lamps are a relatively traditional type of lighting fixture. Their basic structure includes a base, a support, and the lamp body, with the support connecting the base and the lamp body. In recent years, indoor lighting technology has developed rapidly, and table lamps, as one of the most common lighting fixtures, have been widely used in indoor lighting, endowed with a variety of functions to enhance the user experience. Currently, most table lamps on the market have multi-angle adjustment capabilities, especially the ability to rotate between the base and the support. Therefore, the circuitry of a table lamp needs to be designed to support this rotational adjustment.

[0003] Traditional desk lamps typically connect the power cord from the base to the interior of the lamp. However, because the base can be rotated and adjusted, the cord can bend during rotation, potentially leading to breakage over time due to excessive bending. To avoid this, some desk lamps on the market connect the power cord directly to the lamp holder, bypassing the rotation mechanism. However, this requires a dedicated connection point on the lamp holder, affecting aesthetics, and can easily cause the cord to become tangled in the holder when adjusting it, resulting in inconvenience. Utility Model Content

[0004] The purpose of this utility model is to provide a table lamp base structure that allows the table lamp to be rotated and adjusted at the base without affecting the electrical connection of the table lamp base.

[0005] To achieve the above objectives, this utility model provides a table lamp base structure for supporting a table lamp bracket connected to a table lamp. It includes a base and a rotating seat, the rotating seat being used to connect the table lamp bracket. The rotating seat is rotatably connected to the rear side of the upper surface of the base. It also includes an electrical connection component, which is disposed inside the base and the rotating seat. A wire is connected to the table lamp from the rear surface of the base and electrically connected to the electrical connection component.

[0006] The electrical connection assembly includes an inlet socket, a rotatably connected lower and upper sockets. The inlet socket is located inside the base, and the wire is connected to the base and electrically connected to the inlet socket. The inlet socket is connected to a first wire and electrically connected to the bottom of the lower socket through the first wire. The lower and upper sockets are located inside the rotating base, and the upper socket is fixedly connected to the rotating base. Both the lower and upper sockets are hollow cylinders with one side open, with the lower socket opening upwards and the upper socket opening downwards. The upper socket is inserted into the lower socket, and the outer wall of the upper socket contacts and engages with the inner wall of the lower socket to form an electrical connection. The upper socket has a downward-extending cylindrical upper pin in the center, and the length of the upper pin is shorter than the length of the upper socket. The lower socket has an upward-protruding cylindrical lower pin in the center, which extends into the upper socket and contacts the upper pin to form an electrical connection. The top of the upper socket is electrically connected to a second wire, and the upper socket is connected to the power supply circuit of the table lamp through the second wire.

[0007] When the rotating seat rotates relative to the base, the lower seat remains fixed, while the upper seat is inserted into the lower seat and rotates together with the rotating seat.

[0008] Furthermore, a terminal block is electrically connected to the top of the upper seat, and a second wiring is connected from the terminal block.

[0009] Furthermore, the rotating base includes an inner shell and an outer shell. The inner shell is supported on the base and rotatably connected to the base. An upper seat and a lower seat are installed inside the inner shell. The upper seat is fixedly connected to the inner shell, and the inner shell can rotate relative to the lower seat. The outer shell is fixedly fitted outside the inner shell. The upper end of the outer shell is rotatably connected to the lamp holder. A circuit board is also provided inside the outer shell. The circuit board is supported above the inner shell, and a second wiring is electrically connected to the circuit board.

[0010] Furthermore, the electrical connection assembly also includes an outer sleeve, with an upper seat fixedly mounted on the upper end of the outer sleeve, and a lower seat located inside the outer sleeve, with the outer sleeve being rotatable relative to the lower seat. An annular fixing groove is formed on the outer sleeve, and coaxial screw holes are formed on the outer shell and inner shell corresponding to the height of the fixing groove. A bolt passes through the coaxial screw holes of the outer shell and inner shell in sequence, and its end is embedded in the fixing groove to achieve axial positioning.

[0011] Furthermore, the base includes an upper shell, a lower shell, and a mounting plate installed between the upper shell and the lower shell. The upper shell and the mounting plate are respectively provided with a circular upper mounting groove and a mounting groove corresponding to the rotating seat. The upper mounting groove and the mounting groove are respectively provided with an upper mounting hole and a mounting hole in the center. The upper end of the outer sleeve passes through the mounting hole and the upper mounting hole. The bottom of the inner shell forms a bottom piece with a circular outline. The bottom piece is located in the mounting groove and rotates in the mounting groove. The lower end of the outer shell is supported on the bottom piece.

[0012] Furthermore, a connecting piece is fixedly installed in the mounting groove. The connecting piece extends downward toward the mounting hole with an internal threaded connecting section. The lower end of the outer sleeve has an external thread. The length of the external threaded section of the outer sleeve is longer than the width of the internal threaded connecting section of the connecting piece. A screw connection is formed between the lower end of the outer sleeve and the connecting piece.

[0013] Furthermore, an annular rotating plate is fixedly fitted onto the outer sleeve. An arc-shaped limiting groove with a central angle of less than 180 degrees is formed on the rotating plate. The rotating plate can be rotatably connected to the upper mounting groove. A limiting block is protruding on the upper mounting groove at the position corresponding to the limiting groove. The limiting block extends into the limiting groove and is restricted to move within the limiting groove. The bottom plate of the inner shell covers the rotating plate.

[0014] Furthermore, a wire inlet hole is formed on the rear side of the upper housing, and an installation space is left on the rear side of the mounting plate corresponding to the position of the wire inlet hole. The wire inlet seat is located in the installation space, and the first wire connected to the wire inlet seat passes through from the bottom of the outer sleeve and connects to the bottom of the lower seat.

[0015] Furthermore, the inlet socket is provided with a socket corresponding to the inlet hole, and the end of the wire is inserted into the inlet hole and the socket to form an electrical connection with the inlet socket.

[0016] Furthermore, a charging interface is provided on the circuit board, and a charging socket is provided on the outer casing at the position corresponding to the charging interface.

[0017] By adopting the above solution, this utility model has at least the following technical effects:

[0018] The electrical connection assembly achieves electrical connection through the interlocking of a cylindrical lower and upper base, replacing the conventional method of electrical connection via wires in ordinary desk lamps. When the lamp's illumination angle needs to be adjusted by rotating the base, the upper base rotates with the base while the lower base remains stationary. This means that there is a relative rotation between the upper and lower bases. At this time, the outer wall of the upper base always contacts and adheres to the inner wall of the lower base, and the lower surface of the upper pin also maintains contact with the upper surface of the lower pin. This ensures that the electrical connection between the upper and lower bases is not affected by the rotation of the base relative to the base, avoiding the damage and breakage caused by wires tangling and pulling during rotation, as is the case with the wires used in the prior art. This ensures that the electrical connection will not be affected while the lamp is rotatable and adjustable. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention.

[0020] Figure 2 This is a diagram of the rotation limit structure of the rotating seat relative to the base.

[0021] Figure 3 This is a three-dimensional view of the rotating base.

[0022] Figure 4 This is a structural diagram of the rotating base (excluding the outer casing).

[0023] Figure 5 This is a structural diagram of the rotating base (excluding the outer and inner shells).

[0024] Figure 6 This is a schematic diagram of the electrical connection assembly.

[0025] Figure 7 This is an exploded view of the electrical connection components.

[0026] Figure 8 This is a schematic diagram of the structure at the bottom of the upper seat.

[0027] Figure 9 This is a cross-sectional view of the upper part.

[0028] Figure 10 This is a cross-sectional view of the lower part.

[0029] Figure 11 This is a cross-sectional view of the connection between the base and the rotating seat of this utility model.

[0030] Explanation of icon numbers:

[0031] 1. Base; 11. Upper housing; 111. Upper mounting groove; 112. Upper mounting hole; 113. Cable inlet hole; 114. Limiting block; 12. Mounting plate; 121. Mounting groove; 122. Mounting hole; 13. Lower housing; 14. Connecting piece; 141. Internal threaded connection section;

[0032] A. Rotary seat; B. Screw hole;

[0033] 2. Outer casing; 21. Circuit board; 211. Charging interface; 22. Charging socket; 23. Rotating connector;

[0034] 3 Inner shell; 31 Outer shell; 311 Fixing groove; 312 External thread section; 313 Limiting ring; 32 Bottom plate; 33 Rotating plate; 331 Limiting groove; 34 Fixing plate;

[0035] 4. Electrical connection components;

[0036] 41 Inlet socket; 411 Socket; 42 Lower socket; 421 Lower pin; 43 Upper socket; 431 Upper pin; 432 Terminal block; 433 Insulating sleeve; 44 First connector; 45 Second connector;

[0037] 5 bolts. Detailed Implementation

[0038] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0039] See Figures 1 to 11This utility model provides a table lamp base structure for supporting a table lamp bracket connected to a table lamp, including: a base 1 and a rotating seat A. The rotating seat A is used to connect the table lamp bracket and is rotatably connected to the rear side of the upper surface of the base 1. It also includes an electrical connection component 4, which is disposed inside the base 1 and the rotating seat A. The wire is connected to the table lamp from the rear surface of the base 1 and electrically connected to the electrical connection component 4.

[0040] The electrical connection assembly 4 includes a wire inlet 41, a lower seat 42 and an upper seat 43 that are rotatably connected. The wire inlet 41 is located inside the base 1 and has a socket 411. The wire is inserted into the socket 411 and electrically connected to the wire inlet 41. The wire inlet 41 is connected to a first wiring 44 and electrically connected to the bottom of the lower seat 42 through the first wiring 44.

[0041] The electrical connection assembly 4 also includes an outer sleeve 31 with a cylindrical main body. An upper seat 43 and a lower seat 42 are installed inside the outer sleeve 31, which is fixedly located within the rotating seat A. The upper seat 43 is fixedly installed on the upper end of the outer sleeve 31, and the lower seat 42 is located inside the outer sleeve 31, with the outer sleeve 31 rotatable relative to the lower seat 42. A first wire 44 connected to the inlet seat 41 passes through the lower part of the outer sleeve 31 and extends upward to the bottom of the lower seat 42. Both the lower seat 42 and the upper seat 43 are hollow cylinders with openings on one side, with the lower seat 42 opening upwards and the upper seat 43 opening downwards. The upper seat 43 is inserted into the lower seat 42, and the outer wall of the upper seat 43 contacts and engages with the inner wall of the lower seat 42 to form an electrical connection (i.e., the upper seat 43 is nested inside the lower seat 42, and the outer wall of the upper seat 43 and the inner wall of the lower seat 42 form a sliding electrical contact). The upper seat 43 has a downward-extending cylindrical upper pin 431 in its center, and the length of the upper pin 431 is shorter than the length of the upper seat 43. The lower seat 42 has an upward-protruding cylindrical lower pin 421 in its center, which extends into the upper seat 43 and contacts the upper pin 431 to form an electrical connection (see reference). Figure 11 The upper seat 43 protrudes upward from the center of its top and is electrically connected to a terminal block 432. A second terminal block 45 is connected to the terminal block 432. A circuit board 21 is also provided above the upper seat 43 inside the rotating seat A. The upper seat 43 is connected to the circuit board 21 through the second terminal block 45, thereby being electrically connected to the power supply circuit of the table lamp.

[0042] Because they need to serve as electrical connections, the outer wall of the upper seat 43, the inner wall of the lower seat 42, as well as the upper pin 431 and the lower pin 421 are all made of conductive materials.

[0043] The rotating base A includes an inner shell 3 and an outer shell 2. The inner shell 3 is supported on a base 1 and rotatably connected to the base 1. An outer sleeve 31, which has an upper seat 43 and a lower seat 42 inside, is installed inside the inner shell 3. The outer shell 2 is fixedly fitted outside the inner shell 3. A rotating connector 23 is provided at the upper end of the outer shell 2, and the outer shell 2 is rotatably connected to the lamp holder through the rotating connector 23. The circuit board 21 is located inside the outer shell 2 and supported above the inner shell 3. The lower seat 42 is entirely housed inside the outer sleeve 31. The upper end of the upper seat 43 protrudes from the upper end of the outer sleeve 31. The outer sleeve 31 is made of insulating material. The portion of the upper seat 43 protruding from the upper end of the outer sleeve 31 to the lower end of the wiring board 432 is also wrapped with an insulating ring made of insulating material and a fixing plate 34. The fixing plate 34 is located between the insulating ring and the terminal block 432. The two sides of the fixing plate 34 can be screwed to the two sides of the inner housing 3 to form a fixed connection, fixing the outer sleeve 31 and the upper seat 43 to the inner housing 3. The insulating ring is used to wrap the part of the upper seat 43 exposed outside the outer sleeve 31 to avoid oxidation or short circuit.

[0044] The outer shell 2, inner shell 3, and outer sleeve 31 are fixedly connected by a bolt 5. An annular fixing groove 311 is formed on the outer sleeve 31. The outer shell 2 and inner shell 3 have coaxial screw holes B corresponding to the height of the fixing groove 311. The bolt 5 passes through the coaxial screw holes B of the outer shell 2 and inner shell 3 in sequence, and its end is embedded in the fixing groove 311 to achieve axial positioning.

[0045] See Figure 10 The upper seat 43, outer sleeve 31, inner shell 3, and outer shell 2 form a relatively fixed connection. When the rotating seat A rotates relative to the base 1, the upper seat 43 rotates together with the outer sleeve 31, inner shell 3, and outer shell 2. The first wiring 44 passes from the bottom of the outer sleeve 31 upwards and connects to the bottom of the lower seat 42. When the outer sleeve 31 rotates, since the lower seat 42 and the outer sleeve 31 are rotatably connected, the lower seat 42 remains fixed. That is, the rotation of the outer sleeve 31 will not drive the lower seat 42 to rotate, so the first wiring 44 connected to the lower seat 42 will not be twisted. The upper seat 43 is inserted into the lower seat 42 and rotates together with the rotating seat A. The circuit board 21 is also located in the rotating seat A and rotates synchronously. Therefore, the second wiring 45 connected between the circuit board 21 and the upper seat 43 will not be twisted.

[0046] In the above structure, the electrical connection component 4 achieves electrical connection by interlocking the cylindrical lower seat 42 and upper seat 43, replacing the ordinary table lamp's method of electrical connection via wires. When the table lamp's illumination angle needs to be adjusted by rotating the rotating base A, the upper seat 43 rotates with the rotating base A, while the lower seat 42 remains fixed. That is, there is a relative rotation between the upper seat 43 and the lower seat 42. At this time, the outer wall of the upper seat 43 always contacts and adheres to the inner wall of the lower seat 42, and the lower surface of the upper pin 431 also keeps in contact with the upper surface of the lower pin 421. This ensures that the electrical connection between the upper seat 43 and the lower seat 42 is not affected by the rotation of the rotating base A relative to the base 1, avoiding the situation in the prior art where wires are used for electrical connection, but the wires are damaged or broken due to entanglement and pulling caused by rotation. This ensures that the electrical connection will not be affected while the table lamp is rotatable and adjustable.

[0047] See also Figure 2 , Figure 10 The base 1 of this utility model includes an upper shell 11, a lower shell 13, and a mounting plate 12 installed between the upper shell 11 and the lower shell 13. The upper shell 11 has a circular upper mounting groove 111 on the rear side corresponding to the rotating seat A, and an upper mounting hole 112 in the center of the upper mounting groove 111. The mounting plate 12 has a circular mounting groove 121 on the rear side corresponding to the rotating seat A and the upper mounting groove 111, and a mounting hole 122 in the center of the mounting groove 121.

[0048] A connecting piece 14 is fixedly installed inside the mounting groove 121. The connecting piece 14 extends downward toward the mounting hole 122, forming an internally threaded connecting section 141. The lower end of the outer sleeve 31 has an external thread, forming an externally threaded section 312. The lower end of the outer sleeve 31 is screwed to the connecting piece 14. The length of the externally threaded section 312 of the outer sleeve 31 is longer than the width of the internally threaded connecting section 141 of the connecting piece 14, meaning that the outer sleeve 31 can rotate relative to the connecting piece 14 and move up and down. The bottom of the outer sleeve 31 can also be provided with a limiting ring 313 with a diameter larger than that of the internally threaded connecting section 141 to prevent the outer sleeve 31 from moving too upward relative to the internally threaded connecting section 141 of the connecting piece 14 and detaching from the connecting piece 14 and the mounting plate 12.

[0049] The upper end of the outer sleeve 31 extends through the mounting hole 122 and the upper mounting hole 112. The bottom of the inner shell 3 forms a bottom piece 32 with a circular outline. The bottom piece 32 is located in the mounting groove 121 and rotates in the mounting groove 121. The lower end of the outer shell 2 is supported on the bottom piece 32.

[0050] An annular rotating plate 33 is also fixedly fitted onto the outer sleeve 31. The rotating plate 33 has an arc-shaped limiting groove 331 with a central angle less than 180 degrees. The rotating plate 33 is rotatably connected to the upper mounting groove 111. A limiting block 114 protrudes from the upper mounting groove 111 at a position corresponding to the limiting groove 331. The limiting block 114 extends into the limiting groove 331 and is restricted to moving within it. The bottom plate 32 of the inner shell 3 covers the rotating plate 33. The design of the limiting groove 331 and the limiting block 114 prevents the rotating base A from rotating too much relative to the base 1, thus avoiding instability and the lamp falling over.

[0051] The present invention has a wire inlet hole 113 formed on the rear side of the upper housing 11. The mounting plate 12 has an installation space corresponding to the position of the wire inlet hole 113 on the rear side. The wire inlet socket 41 is located in the installation space, and the positions of the wire inlet hole 113 and the socket 411 are corresponding. When using the table lamp, the end of the wire is inserted into the wire inlet hole 113 and the socket 411 to form an electrical connection with the wire inlet socket 41.

[0052] Preferably, the present invention has a charging interface 211 on the circuit board 21 and a charging socket 22 on the outer shell 2 at the position corresponding to the charging interface 211. The table lamp with the structure of the present invention can also insert a charging cable into the charging socket 22 and the charging interface 211 to charge external devices (such as mobile phones).

[0053] The above is merely one embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A table lamp base structure for supporting a table lamp holder to which a table lamp is connected, characterized in that, Includes a base and a rotating base, the rotating base being used to connect the lamp holder. The rotating base is rotatably connected to the rear side of the upper surface of the base. It also includes an electrical connection component, which is located inside the base and the rotating base. The wires are connected to the lamp from the rear surface of the base and electrically connected to the electrical connection component. The electrical connection assembly includes an inlet socket, a rotatably connected lower and upper sockets. The inlet socket is located inside the base, and the wire is connected to the base and electrically connected to the inlet socket. The inlet socket is connected to a first wire and electrically connected to the bottom of the lower socket through the first wire. The lower and upper sockets are located inside the rotating base, and the upper socket is fixedly connected to the rotating base. Both the lower and upper sockets are hollow cylinders with one side open, with the lower socket opening upwards and the upper socket opening downwards. The upper socket is inserted into the lower socket, and the outer wall of the upper socket contacts and engages with the inner wall of the lower socket to form an electrical connection. The upper socket has a downward-extending cylindrical upper pin in the center, and the length of the upper pin is shorter than the length of the upper socket. The lower socket has an upward-protruding cylindrical lower pin in the center, which extends into the upper socket and contacts the upper pin to form an electrical connection. The top of the upper socket is electrically connected to a second wire, and the upper socket is connected to the power supply circuit of the table lamp through the second wire. When the rotating seat rotates relative to the base, the lower seat remains fixed, while the upper seat is inserted into the lower seat and rotates together with the rotating seat.

2. The table lamp base structure according to claim 1, characterized in that, The upper part has an electrical connection to a terminal block, and the second wire is connected from the terminal block.

3. A table lamp base structure according to claim 1 or 2, characterized in that, The rotating base includes an inner shell and an outer shell. The inner shell is supported on the base and rotatably connected to the base. An upper seat and a lower seat are installed inside the inner shell. The upper seat is fixedly connected to the inner shell, and the inner shell can rotate relative to the lower seat. The outer shell is fixedly fitted outside the inner shell. The upper end of the outer shell is rotatably connected to the lamp holder. A circuit board is also provided inside the outer shell. The circuit board is supported above the inner shell, and a second wire is electrically connected to the circuit board.

4. The table lamp base structure according to claim 3, characterized in that, The electrical connection assembly also includes an outer sleeve, with an upper seat fixedly mounted on the upper end of the outer sleeve, and a lower seat located inside the outer sleeve, with the outer sleeve rotatable relative to the lower seat. An annular fixing groove is formed on the outer sleeve, and coaxial screw holes are formed on the outer shell and inner shell corresponding to the height of the fixing groove. A bolt passes through the coaxial screw holes of the outer shell and inner shell in sequence, and its end is embedded in the fixing groove to achieve axial positioning.

5. The table lamp base structure according to claim 4, characterized in that, The base includes an upper shell, a lower shell, and a mounting plate installed between the upper shell and the lower shell. The upper shell and the mounting plate are respectively provided with a circular upper mounting groove and a mounting groove corresponding to the rotating seat. The upper mounting groove and the mounting groove are respectively provided with an upper mounting hole and a mounting hole in the center. The upper end of the outer sleeve passes through the mounting hole and the upper mounting hole. The bottom of the inner shell forms a bottom piece with a circular outline. The bottom piece is located in the mounting groove and rotates in the mounting groove. The lower end of the outer shell is supported on the bottom piece.

6. The table lamp base structure according to claim 5, characterized in that, A connecting piece is fixedly installed in the mounting slot. The connecting piece extends downward toward the mounting hole and has an internal threaded connecting section. The lower end of the outer sleeve has an external thread. The length of the external threaded section of the outer sleeve is longer than the width of the internal threaded connecting section of the connecting piece. The lower end of the outer sleeve and the connecting piece form a screw connection.

7. A table lamp base structure according to claim 5, characterized in that, An annular rotating plate is also fixedly fitted onto the outer sleeve. An arc-shaped limiting groove with a central angle of less than 180 degrees is formed on the rotating plate. The rotating plate can be rotatably connected to the upper mounting groove. A limiting block is protruding on the upper mounting groove at the position corresponding to the limiting groove. The limiting block extends into the limiting groove and is restricted to move within the limiting groove. The bottom plate of the inner shell covers the rotating plate.

8. A table lamp base structure according to claim 5, characterized in that, A wire inlet hole is formed on the rear side of the upper housing. An installation space is left on the rear side of the mounting plate corresponding to the position of the wire inlet hole. The wire inlet socket is located in the installation space. The first wire connected to the wire inlet socket passes through from the bottom of the outer sleeve and connects to the bottom of the lower socket.

9. A table lamp base structure according to claim 8, characterized in that, The inlet socket has a socket corresponding to the inlet hole, and the end of the wire is inserted into the inlet hole and the socket to form an electrical connection with the inlet socket.

10. A table lamp base structure according to claim 3, characterized in that, The circuit board has a charging interface, and the outer casing has a charging port at the corresponding position of the charging interface.

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