A table lamp with a multi-angle adjustable ceramic base

Abstract

This utility model discloses a ceramic-base table lamp with multi-angle adjustable design, including a fixed base, a lamp head, a vertical pole, and bent heads at both ends of the vertical pole. Each bent head consists of several sequentially connected sections. Each section has an electrode shaft and an electrode slip ring at one end, and a rotating groove and a slip ring groove at the other end. A cable is housed within the bent head to achieve conductive connection between the electrode shaft and the rotating groove, and between the electrode slip ring and the slip ring groove, thus maintaining electrical continuity when adjacent sections rotate. The vertical pole is a hollow tubular structure with a cable internally arranged, electrically connected to the power module in the fixed base and the LED lighting unit in the lamp head. The outer shell of the bent head is made of ceramic, with a frosted surface and a crack-resistant protective layer. Conductive springs are installed inside the slip ring grooves to maintain stable contact. This utility model has advantages such as reliable conductivity, flexible angle adjustment, excellent insulation performance, and long service life.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, specifically to a table lamp with a ceramic base that can be adjusted at multiple angles. Background Technology

[0002] Currently, desk lamps, as commonly used lighting devices in homes and offices, are undergoing continuous structural design development to meet users' needs for adjustable lighting angles and user comfort in different scenarios. Traditional desk lamps mostly use a fixed pole or a single-axis rotating connection, limiting the lamp head's vertical tilt and horizontal rotation, thus restricting angle adjustment and hindering multi-directional lighting. Furthermore, the electrical connection between the lamp head and the pole often relies on exposed wires or a single-layer metal shaft, which, after prolonged use, is prone to wire fatigue, desoldering, or breakage due to repeated twisting, affecting lighting stability and lifespan.

[0003] In existing technologies, a common structure is the "metal hinge + exposed wire" connection, which adjusts the lamp head through mechanical rotation. While this structure is simple to manufacture, the cable is usually laid outside the hinge, making it prone to insulation wear and metal core breakage due to repeated bending. Furthermore, the exposed wire affects the overall aesthetics and safety. Another type is the "plastic adapter joint table lamp," which connects the lamp head to the arm via a ball joint or joint mechanism. However, this type of structure typically uses non-conductive plastic materials, requiring independent wires for electrical connection. This results in complex assembly, a long conductive path, and drawbacks such as high contact resistance, high energy consumption, and uneven heat generation.

[0004] Regarding the angle adjustment, traditional desk lamps generally use a single-joint or fixed-angle design. When multi-directional illumination is needed, users need to frequently adjust the position of the base or lamp body, which is inconvenient. Some improved products use a multi-segment rotatable bracket structure, but because there is no effective conductive connection between the joints, multiple independent wires often need to be run through the joints, resulting in complex wiring, limited internal space, and the cables are easily pulled when the joints rotate, leading to unstable electrical connections.

[0005] In view of this, we have studied and improved upon the existing problems to provide a table lamp with a ceramic base that can be adjusted at multiple angles, in order to solve the current problems and improve its practical value. Utility Model Content

[0006] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0007] Therefore, the technical solution adopted by this utility model is as follows: a ceramic base table lamp with multi-angle adjustable design, including a fixed base, a lamp head, a vertical pole, and bent heads located at both ends of the vertical pole. By setting up a bent-joint conductive transition mechanism and a hollow wiring structure, the lamp head and the vertical pole can maintain electrical continuity while achieving angle adjustment, and have technical advantages such as rotatable adjustment, stable conductivity, safety, and durability.

[0008] In a preferred embodiment, both ends of the riser are provided with bends, which are movably connected to the mounting base and the lamp holder, respectively. Each bend is composed of several sequentially connected sections. One end of each section has an electrode shaft and an electrode slip ring, while the other end has a rotating groove and a slip ring groove. A cable is located inside the section for conductive connection between the electrode shaft and the rotating groove, and between the electrode slip ring and the slip ring groove. The shape and specifications of the rotating groove and the slip ring groove are adapted to the electrode shaft and the electrode slip ring, enabling rotational engagement between adjacent sections. Specifically, this structure prevents the circuit from being stretched or interrupted during rotation of the sections, ensuring stable power transmission and continuous adjustment of the lamp holder angle.

[0009] In a preferred example, the riser is a hollow tubular structure with a through-cable inside. Both ends of the riser have the same structure as the end of the bend, including electrode shafts, electrode slip rings, rotating grooves, and slip ring grooves. Specifically, this design ensures consistent circuit continuity throughout the lamp body and enables modular assembly through a unified connection interface, facilitating manufacturing and maintenance.

[0010] In a preferred example, the joint body has a bent-head structure with its two ends intersecting at an angle of 120 degrees or 150 degrees, allowing for multi-angle tilt and rotation adjustment of the lamp head. Specifically, users can adjust the tilt or height of the lamp head according to their lighting needs to achieve multi-purpose lighting effects such as reading, drawing, and localized lighting.

[0011] In a preferred example, the two ends of the joint are machined with a frosted surface to improve rotational friction between adjacent joints. Specifically, the frosted surface provides a certain damping force while maintaining rotational flexibility, allowing the lamp head to remain stably at the set angle position after adjustment and preventing it from swinging back due to its own weight.

[0012] In a preferred example, the outer shell of the bend body is made of a high-strength ceramic material and coated with a crack-resistant protective layer to enhance mechanical strength and heat resistance. Specifically, this material possesses excellent insulation and thermal conductivity, preventing heat dissipation from the lamp holder from being conducted downwards along the structure, ensuring structural safety and extending the lifespan of internal components.

[0013] In a preferred example, the electrode shaft and electrode slip ring are made of silver-plated copper alloy to reduce contact resistance and improve conductivity. Specifically, this conductive component maintains low impedance conductivity during repeated rotation, reducing arcing and contact wear, and improving overall lifespan and lighting stability.

[0014] In a preferred example, a conductive spring is embedded inside the slip ring groove to maintain stable electrical contact during rotation. Specifically, the conductive spring automatically compensates for minor offsets caused by rotational clearance, ensuring that the electrode slip ring maintains tight contact at different angles, thereby preventing current interruption or flickering.

[0015] In a preferred example, a power module is installed inside the mounting base. The output of the power module is electrically connected to the LED lighting unit inside the lamp head via a cable inside the riser pole, thereby enabling power supply and angle control of the lamp head. Specifically, the module can automatically adjust the power supply current according to the lamp head's posture to ensure constant illumination and safe operation.

[0016] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, the electrode shaft column, electrode slip ring and slip ring groove of the bent body are matched to ensure that the circuit is continuously conductive when the lamp head is adjusted at any angle, so as to realize the synchronization of power transmission and structural rotation, thereby significantly improving the flexibility of angle adjustment and conductivity stability.

[0017] 2. In this utility model, the ceramic bent shell and the frosted surface connection structure not only enhance the overall heat resistance and insulation performance, but also effectively prevent slippage and loosening after angle adjustment; combined with the design of conductive spring and high conductivity alloy contact parts, the desk lamp achieves wear resistance, low resistance and high safety performance during long-term use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the riser pole and its two bent ends according to an embodiment of the present utility model; Figure 3 This is an exploded view of the bent head according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of a bend body according to an embodiment of the present invention.

[0019] Figure label: 100. Mounting bracket; 200. Lamp holder; 300. Vertical pole; 400. Bend head; 410. Bend body; 411. Electrode shaft; 412. Electrode slip ring; 413. Rotary groove; 414. Slip ring groove; 415. Cable. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0021] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0022] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a ceramic base table lamp with multi-angle adjustable features.

[0023] Combination Figures 1-4 As shown, this utility model provides a multi-angle adjustable ceramic base table lamp, including a fixed base 100, a lamp head 200, a vertical pole 300, and bent heads 400 disposed at both ends of the vertical pole 300. This structure, through the interaction of internal electrode conduction and mechanical rotation, enables flexible adjustment of the lamp head 200 in multiple angular directions, while ensuring continuous and safe electrical connection, making it suitable for lighting operations in various scenarios.

[0024] In this embodiment, the mounting base 100 is an integral ceramic structure used to stably support the entire desk lamp. A power module is installed inside the mounting base 100 to provide a stable power output to the lamp head 200. The output end of the power module is electrically connected to the LED lighting unit inside the lamp head 200 via a cable 415 arranged inside the upright pole 300, thus realizing the overall power supply function for the desk lamp. An anti-slip pad is provided on the bottom surface of the mounting base 100 to improve placement stability and prevent slippage during angle adjustments.

[0025] The riser 300 is a hollow tubular structure, with both ends movably connected to the bend 400. A cable 415 is longitudinally arranged inside the riser 300 for transmitting current signals in the electrical system. To ensure conductive continuity, the structures at both ends of the riser 300 are identical to those at both ends of the bend 400, both equipped with electrode shafts 411 and electrode slip rings 412, rotating grooves 413 and slip ring grooves 414, achieving a stable conductive connection and rotatable connection between the riser 300 and the bend 400.

[0026] like Figure 2 and Figure 3As shown, the bend head 400 is composed of several bend sections 410 connected in sequence. Each bend section 410 has a mating electrode shaft 411, an electrode slip ring 412, a rotating groove 413, and a slip ring groove 414 at both ends. Adjacent bend sections 410 are rotatably connected by the electrode shaft 411 being inserted into the rotating groove 413 and the electrode slip ring 412 being embedded in the slip ring groove 414. The electrode shaft 411 and the electrode slip ring 412 together form a conductive mating surface, ensuring conductive continuity between adjacent bend sections 410 during mechanical rotation. A cable 415 passes through the inner cavity of the bend section 410, enabling series transmission of the overall electrical circuit.

[0027] In this structure, the electrode shaft 411 and the electrode slip ring 412 are preferably made of silver-plated copper alloy, which has excellent conductivity and strong oxidation resistance, effectively reducing contact resistance and improving current transmission efficiency. To further maintain electrical contact stability during rotation, a conductive spring is embedded inside the slip ring groove 414 to automatically compensate for the contact gap when the lamp head rotates or the pitch angle is adjusted, ensuring an uninterrupted conductive path.

[0028] In this embodiment, the bend body 410 has a bent-head structure, with its two ends having intersecting axes at an angle of 120 degrees or 150 degrees. By arranging multiple bend bodies 410 in series, the lamp head 200 can achieve a wide range of pitch and rotation adjustments relative to the fixed base 100, thereby meeting the lighting angle requirements in different working scenarios. The surfaces at both ends of the bend body 410 are processed with a frosted finish to increase friction and prevent slippage or loosening after angle adjustment, thus enhancing positioning stability.

[0029] like Figure 4 As shown, the outer shell of the bend body 410 is made of high-strength ceramic material, and its outer surface is coated with a crack-resistant protective layer to prevent the propagation of microcracks caused by long-term heat or mechanical stress, thereby improving structural durability and insulation performance. The ceramic material not only has excellent heat resistance and insulation properties, but also effectively isolates the heat generated by the lamp holder 200 from being conducted to the riser pole 300 and the mounting base 100, thus extending the service life of the internal electronic components.

[0030] In another preferred embodiment, the riser 300 and the elbow 400 are connected by a snap-fit ​​mechanism for easy disassembly and maintenance. A limiting ring structure is provided inside the swivel groove 413 to mechanically limit the rotation angle and prevent damage to the cable 415 due to excessive twisting.

[0031] During operation, when the user manually adjusts the angle of the lamp head 200, the adjacent bends 410 rotate smoothly with the cooperation of the electrode shaft 411 and the electrode slip ring 412. The conductive path is continuously transmitted through the cable 415 and the slip ring contact surface, without any power outages or poor contact. The power module transmits electrical energy from the mounting base 100 to the LED lighting unit of the lamp head 200 to achieve lighting output. Through the rotational cooperation between the bends 410, the lamp head 200 can perform multi-directional and multi-angle pitch and rotation operations, meeting the multi-functional application needs of reading, drawing, or local lighting.

[0032] In summary, this utility model achieves multi-directional adjustability of the lamp head by adopting a multi-stage bent electrode connection structure; ensures conductivity continuity and structural stability through the combination structure of ceramic bent body and conductive slip ring; and effectively solves the problems of loose angle adjustment, unstable conductivity, and easy wire breakage in traditional desk lamps by utilizing frosted friction positioning and conductive spring compensation design. It has significant advantages such as flexible adjustment, safety and reliability, and long life.

[0033] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A table lamp with a multi-angle adjustable ceramic base, characterized in that, The device includes a mounting base (100), a lamp holder (200), and a riser pole (300), as well as bent ends (400) located at both ends of the riser pole (300); the bent ends (400) at both ends of the riser pole (300) are movably connected to the surfaces of the mounting base (100) and the lamp holder (200), respectively; each bent end (400) includes a plurality of bent sections (410) connected in sequence; one end of each bent section (410) is provided with an electrode shaft (411) and an electrode slip ring (412), and the bent... The other end of the joint (410) is provided with a rotating groove (413) and a slip ring groove (414); the inner side of the bent joint (410) is provided with a cable (415) for realizing the conductive connection between the electrode shaft (411) and the rotating groove (413), and between the electrode slip ring (412) and the slip ring groove (414); the shape and specifications of the rotating groove (413) and the slip ring groove (414) are adapted to the electrode shaft (411) and the electrode slip ring (412) for realizing the rotational connection between adjacent bent joints (410).

2. The multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The riser (300) is a hollow tubular structure with a cable (415) inside. The structures at both ends of the riser (300) are the same as those at both ends of the bend (410), both of which are equipped with an electrode shaft (411), an electrode slip ring (412), a rotating groove (413), and a slip ring groove (414) to achieve overall conductive continuity and rotatable connection.

3. The multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The bent section (410) has a bent head structure with its two ends intersecting axes at an angle of 120 degrees or 150 degrees, which is used to realize the multi-angle pitch and rotation adjustment of the lamp head (200).

4. A multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The two ends of the joint body (410) are processed with a frosted surface structure to increase the friction between adjacent joint bodies (410), thereby enhancing the rotational positioning stability.

5. A multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The outer shell of the bend body (410) is made of high-strength ceramic material and coated with a crack-resistant protective layer to improve mechanical strength and heat resistance.

6. A multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The electrode shaft (411) and electrode slip ring (412) are made of silver-plated copper alloy material to reduce contact resistance and improve conductivity.

7. A multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The slip ring groove (414) is embedded with a conductive spring sheet to maintain the stability of electrical contact during rotation.

8. A multi-angle adjustable ceramic base table lamp according to claim 1, characterized in that, The mounting base (100) is equipped with a power module. The output end of the power module is electrically connected to the LED lighting unit in the lamp head (200) via the cable (415) in the riser (300) to realize the power supply and angle adjustment functions of the lamp head (200).

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