Table lamp rotary connecting structure capable of preventing wire twisting
By adopting the conductive structure of the damping shaft and elastic needle touch plate in the desk lamp, the problem of stranding of the desk lamp when adjusting the lighting angle is solved, 360-degree rotation is achieved, and the applicability and convenience of the desk lamp are improved.
Patent Information
- Application Number
- CN202422228014.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-09-11
AI Technical Summary
Existing lighting table lamps are prone to form stranded wires when adjusting the lighting angle, and the rotation angle is limited, and it is necessary to confirm whether the adjustment direction can be re-adjusted, resulting in low applicability.
By connecting the damping shaft between the connecting arm and the lamp head arm, combining the conduction structure of the elastic needle and the touch plate, the circuit board is ensured to be conducted during the rotation adjustment process, avoid stranding problems, and achieve 360-degree rotation.
The 360-degree rotation of the lamp head arm relative to the connecting arm is achieved, which increases the applicability and convenience of the desk lamp, and avoids the stranded wire problem caused by conductor conduction.
Smart Images
Figure CN222836798U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of household table lamps, and in particular relates to a table lamp rotation connection structure that prevents twisted wires. Background Art
[0002] The desk lamp includes a lamp holder, a lamp pole and a lamp head. To ensure the stability of the desk lamp, batteries, circuit boards, etc. are installed in the lamp holder, and the lamp beads in the lamp head are connected by wires. Existing lighting desk lamps are usually restricted by wires to form twisted wires when adjusting the lighting angle, and the rotation angle is limited, or it is necessary to confirm whether the adjustment direction can be adjusted before adjustment, which makes the applicability of LED lighting desk lamps less. Summary of the invention
[0003] In order to overcome the problem in the background technology that when adjusting the lighting angle, the wires will be restricted to form tangled wires, the rotation angle is limited, or it is necessary to confirm whether the adjustment direction can be adjusted before adjustment, thereby making the applicability of the LED lighting desk lamp low, the utility model provides a desk lamp rotation connection structure that prevents tangled wires; the connecting arm 1 and the lamp head arm 2 are connected by a damping shaft 3, so that the rotation between the connecting arm 1 and the lamp head arm 2 can be positioned at any position, thereby increasing convenience. During the rotation, the first circuit board 4 and the second circuit board 7 are connected through the elastic needle 5 and the touch plate 6, and the annular electrode can ensure that it maintains contact and conduction with the elastic needle 5 during the rotation adjustment process, avoiding the problem of tangled wires caused by the conduction of the wires, and realizing that the lamp head arm 2 can rotate 360 degrees relative to the connecting arm 1, thereby increasing the applicability and convenience of the desk lamp.
[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a table lamp rotation connection structure for preventing twisted wires mainly includes a connecting arm 1, a lamp holder arm 2, a damping shaft 3, a first circuit board 4, an elastic needle 5, a touch plate 6, and a second circuit board 7. The connecting arm 1 and the lamp holder arm 2 are connected through the damping shaft 3, the first circuit board 4 is installed in the connecting arm 1, the elastic needle 5 is installed on the connecting arm 1, the second circuit board 7 is installed in the lamp holder arm 2, the touch plate 6 is installed on the second circuit board 7, the touch plate 6 is connected to the second circuit board 7, the first circuit board 4 is in contact with the touch plate 6 through the elastic needle 5, and an annular electrode is coaxially installed on the touch plate 6.
[0005] Furthermore, the damping shaft 3 comprises a shaft sleeve 33 and a shaft head 34. The shaft sleeve 33 and the shaft head 34 realize damping transfer through interference fit, and the shaft sleeve 33 and the shaft head 34 are axially limited by a shaft shoulder.
[0006] Furthermore, the damping shaft 3 is provided with a first connecting portion 31 and a second connecting portion 32 at both ends thereof, and the first connecting portion 31 and the second connecting portion 32 are connected to the connecting arm 1 and the lamp holder arm 2 respectively through screws.
[0007] Furthermore, limiting ejector pins 8 are embedded on both sides of the end of the connecting arm 1 , and a limiting groove 81 matching the limiting ejector pin 8 is provided at the bottom end of the lamp holder arm 2 , and the end of the limiting ejector pin 8 is embedded in the limiting groove 81 .
[0008] Furthermore, the elastic needle 5 comprises a sleeve 51, a needle shaft 52 and a spring 53. The spring 53 is installed in the sleeve 51. The needle shaft 52 can be slidably installed in the sleeve 51 after compressing the spring 53. The end of the sleeve and the needle shaft 52 are provided with a hole shoulder and a shaft shoulder for limiting the travel.
[0009] Beneficial effects of the utility model:
[0010] The connecting arm and the lamp holder arm of the utility model are connected by a damping shaft, so that the rotation between the connecting arm and the lamp holder arm can be positioned at any position, thereby increasing convenience; during the rotation process, the first circuit board and the second circuit board are connected through the elastic needle and the touch plate, and the annular electrode can ensure that it maintains contact and conduction with the elastic needle during the rotation adjustment process, avoiding the problem of twisted wires caused by the conduction of the wires, and realizing the 360-degree rotation of the lamp holder arm relative to the connecting arm, thereby increasing the applicability and convenience of the desk lamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a right axonometric schematic diagram of a three-dimensional cutaway view of the utility model.
[0012] Figure 2 It is a three-dimensional cutaway left axonometric schematic diagram of the utility model.
[0013] Figure 3 It is a schematic diagram of the conduction structure of the utility model.
[0014] Figure 4 It is a schematic diagram of the elastic needle structure of the utility model.
[0015] Figure 5 It is a schematic diagram of the structure of the end portion of the connecting arm of the utility model.
[0016] Figure 6 It is a schematic diagram of the structure of the end portion of the lamp holder arm of the utility model.
[0017] Figure 7 It is a three-dimensional schematic diagram of the utility model. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.
[0019] The utility model discloses a table lamp rotation connection structure for preventing twisted wires. The table lamp rotation connection structure for preventing twisted wires mainly comprises a connecting arm 1, a lamp holder arm 2, a damping shaft 3, a first circuit board 4, an elastic needle 5, a touch plate 6, and a second circuit board 7. The connecting arm 1 and the lamp holder arm 2 are connected through the damping shaft 3, the first circuit board 4 is installed in the connecting arm 1, the elastic needle 5 is installed on the connecting arm 1, the second circuit board 7 is installed in the lamp holder arm 2, the touch plate 6 is installed on the second circuit board 7, the touch plate 6 is connected to the second circuit board 7, and the first circuit board 4 is connected through the damping shaft 3. The elastic needle 5 is in contact with the touch plate 6, and an annular electrode is coaxially installed on the touch plate 6; the connecting arm 1 and the lamp holder arm 2 are connected by the damping shaft 3, so that the rotation between the connecting arm 1 and the lamp holder arm 2 can be positioned at any position, which increases convenience. During the rotation, the first circuit board 4 and the second circuit board 7 are connected through the elastic needle 5 and the touch plate 6. The annular electrode can ensure that the elastic needle 5 is kept in contact and connected during the rotation adjustment process, avoiding the problem of twisted wires caused by the conduction of the wires, and realizing that the lamp holder arm 2 can rotate 360 degrees relative to the connecting arm 1, thereby increasing the applicability and convenience of the desk lamp.
[0020] The damping shaft 3 comprises a shaft sleeve 33 and a shaft head 34. The shaft sleeve 33 and the shaft head 34 realize damping transfer through interference fit. The shaft sleeve 33 and the shaft head 34 are axially limited by a shaft shoulder, and the connection structure is simple and reliable.
[0021] The damping shaft 3 has a first connecting portion 31 and a second connecting portion 32 at both ends thereof, and the first connecting portion 31 and the second connecting portion 32 are connected to the connecting arm 1 and the lamp holder arm 2 respectively through screws.
[0022] The connecting arm 1 is provided with limiting pins 8 on both sides of its end, and the bottom end of the lamp holder arm 2 is provided with a limiting groove 81 matching the limiting pin 8. The end of the limiting pin 8 is embedded in the limiting groove 81. When the connecting arm 1 and the lamp holder arm 2 are rotated to the facing position, the top of the limiting pin 8 is embedded in the limiting groove 81 for limiting, thereby ensuring the angular accuracy of the connecting arm 1 and the lamp holder arm 2 and facilitating the adjustment of other functions such as folding and telescoping. When adjusting, the limiting groove 81 exerts a force on the end of the limiting pin 8 to compress the spring, and the limiting pin 8 retracts and disengages from the limiting groove 81.
[0023] The elastic needle 5 comprises a sleeve 51, a needle shaft 52 and a spring 53. The spring 53 is installed in the sleeve 51. The needle shaft 52 can be slidably installed in the sleeve 51 after compressing the spring 53. A hole shoulder and a shaft shoulder for stroke limiting are provided on the end of the sleeve and the needle shaft 52. The hole shoulder and the shaft shoulder are used to limit the stroke of the needle shaft 52 to prevent the needle shaft 52 from falling out during disassembly and assembly, thereby providing convenience for disassembly and assembly.
[0024] Working process:
[0025] The connecting arm 1 and the lamp holder arm 2 are connected by a damping shaft 3, so that the rotation between the connecting arm 1 and the lamp holder arm 2 can be positioned at any position, which increases convenience. During the rotation, the first circuit board 4 and the second circuit board 7 are connected through the elastic needle 5 and the touch plate 6. The annular electrode can ensure that it maintains contact and conduction with the elastic needle 5 during the rotation adjustment process, avoiding the problem of entangled wires caused by the conduction of the wires, and realizing the 360-degree rotation of the lamp holder arm 2 relative to the connecting arm 1, thereby increasing the applicability and convenience of the desk lamp.
[0026] When the connecting arm 1 and the lamp holder arm 2 are rotated to the facing position, the top end of the limiting pin 8 is embedded in the limiting groove 81 for limiting, thereby ensuring the angular accuracy of the connecting arm 1 and the lamp holder arm 2 and facilitating the adjustment of other functions such as folding and telescoping; when adjusting, the force exerted by the limiting groove 81 on the end of the limiting pin 8 realizes the compression spring, and the limiting pin 8 retracts and disengages from the limiting groove 81.
[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.
Claims
1. A table lamp rotation connection structure for preventing twisted wires, characterized in that: The table lamp rotation connection structure for preventing twisted wires comprises a connecting arm (1), a lamp holder arm (2), a damping shaft (3), a first circuit board (4), an elastic pin (5), a touch plate (6), and a second circuit board (7); the connecting arm (1) and the lamp holder arm (2) are connected via the damping shaft (3); the first circuit board (4) is mounted in the connecting arm (1); the elastic pin (5) is mounted on the connecting arm (1); the second circuit board (7) is mounted in the lamp holder arm (2); the touch plate (6) is mounted on the second circuit board (7); the touch plate (6) is electrically connected to the second circuit board (7); the first circuit board (4) contacts the touch plate (6) via the elastic pin (5); and an annular electrode is coaxially mounted on the touch plate (6).
2. A table lamp rotation connection structure for preventing twisted wires as claimed in claim 1, characterized in that: The damping shaft (3) comprises a shaft sleeve (33) and a shaft head (34); the shaft sleeve (33) and the shaft head (34) achieve damping transfer through interference fit; and the shaft sleeve (33) and the shaft head (34) are axially limited by a shaft shoulder.
3. A table lamp rotation connection structure for preventing twisted wires as claimed in claim 1 or 2, characterized in that: A first connecting portion (31) and a second connecting portion (32) are respectively provided at both ends of the damping shaft (3); the first connecting portion (31) and the second connecting portion (32) are respectively connected to the connecting arm (1) and the lamp holder arm (2) via screws.
4. A table lamp rotation connection structure for preventing twisted wires as claimed in claim 3, characterized in that: The connecting arm (1) has limit pins (8) embedded on both sides of its end, and the lamp holder arm (2) has a limit groove (81) matching the limit pin (8) at its bottom end, with the end of the limit pin (8) embedded in the limit groove (81).
5. A table lamp rotation connection structure for preventing twisted wires as claimed in any one of claims 1, 2 and 4, characterized in that: The elastic needle (5) comprises a sleeve (51), a needle shaft (52) and a spring (53). The spring (53) is installed in the sleeve (51). The needle shaft (52) can be slidably installed in the sleeve (51) after compressing the spring (53). A hole shoulder and a shaft shoulder for limiting the travel are provided on the end of the sleeve and the needle shaft (52).