Table lamp adjusting device and adjustable table lamp

Abstract

The utility model relates to a table lamp, in particular to a table lamp adjusting device and an adjustable table lamp. A table lamp adjusting device comprises a first damping joint device arranged on a supporting device; one end of the first connecting rod is arranged on the first damping joint device; the second damping joint device is arranged at the other end of the first connecting rod; one end of the second connecting rod is arranged on the second damping joint device; and the third damping joint device is arranged at the other end of the second connecting rod and is connected with the lamp holder device. According to the desk lamp adjusting device, the three damping joint devices and the two connecting rods are adopted to achieve adjustment of any height and angle within a set range, the adjusting range is greatly widened, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to a desk lamp, in particular to a desk lamp adjustment device and an adjustable desk lamp. Background Art

[0002] A desk lamp generally refers to an electric lamp with a support device that is placed on a table. The main function of a desk lamp is to provide lighting, which is convenient for reading, studying, working, etc.

[0003] Desk lamps can generally adjust the height of the lamp pole, the direction of light, and the brightness. For example, the multi-angle adjustable desk lamp disclosed in CN202253110U has a lampshade that can rotate within a range of degrees with the bolt on the second connecting member as the axis. When the lampshade is adjusted to the appropriate position, the nut on the bolt is tightened to fix the lampshade to a certain angle. This adjustment method causes the height of the lampshade to change, and the overall height and angle adjustment range is small. Utility Model Content

[0004] In order to solve the above-mentioned problem of small height and angle adjustment range, the utility model provides a desk lamp adjustment device, and the specific technical solution is as follows:

[0005] A desk lamp adjustment device includes: a first damping joint device, provided on a supporting device; a first connecting rod, one end of which is provided on the first damping joint device; a second damping joint device, provided on the other end of the first connecting rod; a second connecting rod, one end of which is provided on the second damping joint device; and a third damping joint device, provided on the other end of the second connecting rod and connected to the lamp holder device.

[0006] Preferably, the first damping joint device includes: a first fixed joint seat, which is arranged on the supporting device and is provided with a first rotation groove; a first movable joint seat, which is arranged opposite to the first fixed joint seat and is connected to one end of the first connecting rod, and the first movable joint seat is provided with a first connecting groove; and a first disc damper, the first damping rotating seat and the first damping connecting seat of the first disc damper are respectively connected to the first rotation groove and the first connecting groove.

[0007] Preferably, the second damping joint device includes: a second fixed joint seat, which is arranged at one end of the second connecting rod and is provided with a second rotation groove; a second movable joint seat, which is arranged opposite to the second fixed joint seat and is connected to the other end of the first connecting rod, and the second movable joint seat is provided with a second connecting groove; and a second disc damper, the second damping rotating seat and the second damping connecting seat of the second disc damper are respectively connected to the second rotation groove and the second connecting groove.

[0008] Preferably, the third damping joint device includes: a third fixed joint seat, which is arranged at the other end of the second connecting rod and is provided with an intermediate rotation groove, a third connecting groove communicated with the intermediate rotation groove and a third rotation hole; a third movable joint seat, which is movably arranged in the intermediate rotation groove and is connected to the lamp holder device, and the third movable joint seat is provided with a third rotation groove; a third connecting seat, which is rotatably arranged in the third rotation hole; and a third disc damper, the third damping rotating seat of the third disc damper is connected to the third connecting groove, and the third damping connecting seat of the third disc damper is installed on the third rotation groove and connected to the third connecting seat.

[0009] Preferably, it further comprises a decorative cover, which is arranged on both sides of the first damping joint device, the second damping joint device and the third damping joint device.

[0010] An adjustable desk lamp comprises: the above-mentioned desk lamp adjustment device; a supporting device, wherein the first damping joint device is arranged on the supporting device; a lamp holder device, which is arranged on the third damping joint device; a lighting lamp, which is arranged on the lamp holder device; a control device, which is arranged on the lamp holder device or the supporting device and is connected to the lighting lamp and is used to control the lighting lamp; and a power supply device, which is arranged on the supporting device or the first damping joint device and is connected to the control device.

[0011] Preferably, the supporting device includes: a base plate; a cover plate, which is arranged on the base plate and connected to the first damping joint device; and a counterweight plate, which is arranged between the base plate and the cover plate.

[0012] Preferably, the supporting device includes: a U-shaped frame, the U-shaped frame is connected to the first damping joint device; and a locking nut, the locking nut is provided on one side of the U-shaped frame and is used to clamp the U-shaped frame on the object.

[0013] Preferably, the lamp holder device includes: a lamp holder seat, which is arranged on the third damping joint device; a lamp pole, which is arranged on the lamp holder seat; a lighting lamp, which is arranged on the lamp pole; and a light homogenizing plate, which is arranged on the lamp pole and opposite to the lighting lamp.

[0014] Preferably, the control device includes: a control panel; a control knob provided on the control panel; a display provided on the control panel; and an indicator light provided on the control panel.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model provides a desk lamp adjustment device which adopts three damping joint devices and two connecting rods to achieve adjustment of any height and angle within a set range, thereby greatly improving the adjustment range and being more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of embodiment 1;

[0018] Figure 2 is an exploded view of the first embodiment;

[0019] Figure 3 is a perspective view of a first disc damper from a first viewing angle;

[0020] Figure 4 is a perspective view of the first disc damper from a second viewing angle;

[0021] Figure 5 is a stereoscopic view of the first fixed joint seat from a first viewing angle;

[0022] Figure 6 is a stereoscopic view of the first fixed joint seat from a second viewing angle;

[0023] Figure 7 is a front view of the first fixed joint seat;

[0024] Figure 8 is a bottom view of the first fixed joint seat;

[0025] Figure 9 is a stereoscopic diagram of the first movable joint seat from a first viewing angle;

[0026] Figure 10 is a stereoscopic diagram of the first movable joint seat from a second viewing angle;

[0027] Figure 11 is a cross-sectional view of the first movable joint seat;

[0028] Figure 12 This is an exploded view of the second damping joint device;

[0029] Figure 13 is a stereoscopic view of the second fixed joint seat from a first viewing angle;

[0030] Figure 14 is a stereoscopic view of the second fixed joint seat from a second viewing angle;

[0031] Figure 15 is a bottom view of the second fixed joint seat;

[0032] Figure 16 This is an exploded view of the third damping joint device from the first perspective;

[0033] Figure 17 This is an exploded view of the third damping joint device from the second perspective;

[0034] Figure 18 is a stereogram of the third fixed joint seat from a first viewing angle;

[0035] Figure 19 is a stereoscopic view of the third fixed joint seat from a second viewing angle;

[0036] Figure 20 It is a bottom view of the third fixed joint seat;

[0037] Figure 21 1 is a structural diagram of the third connecting seat;

[0038] Figure 22 is a schematic structural diagram of a first connecting rod;

[0039] Figure 23 is a cross-sectional view of the first connecting rod;

[0040] Figure 24 It is a structural diagram of the third movable joint seat and the lamp base;

[0041] Figure 25 It is a structural diagram of the lamp head board;

[0042] Figure 26 This is the front view of the lamp head board;

[0043] Figure 27 It is a structural diagram of the light pole;

[0044] Figure 28 It is a side view of the light pole;

[0045] Figure 29 It is a structural diagram of the control device;

[0046] Figure 30 It is a structural diagram of the cover;

[0047] Figure 31 is a structural diagram of embodiment 3;

[0048] Figure 32 It is a structural diagram of the supporting device of Example 3. DETAILED DESCRIPTION

[0049] The present invention will now be further described with reference to the accompanying drawings.

[0050] Example 1

[0051] like Figures 1 to 24As shown, a desk lamp adjustment device includes a first damping joint device 2, a first connecting rod 81, a second damping joint device 3, a second connecting rod 82, and a third damping joint device 4. The first damping joint device 2 is mounted on the support device 1 and connected to the first connecting rod 81. The first connecting rod 81 is connected to the second connecting rod 82 via the second damping joint device 3. The second connecting rod 82 is connected to the lamp holder device 5 via the third damping joint device 4.

[0052] The first damping joint device 2 can adjust the distance between the lamp head device 5 and the support device 1 in the water surface, that is, adjust the position of the lighting lamp 63 along the X-axis to achieve distance adjustment, while the second damping joint device 3 and the third damping joint device 4 are used for height adjustment, that is, adjust the height of the lighting lamp 63 along the Z-axis. The third damping joint device 4 is used for angle adjustment of the lighting lamp 63, and can rotate to an angle greater than 250°, achieving a wide range of angle adjustment. The two connecting rods cooperate with the three damping joint devices to achieve a wide range of height and angle adjustment, and the height adjustment is less affected by the distance adjustment. The same height can be maintained within a certain range to achieve distance adjustment. When adjusting, the first connecting rod 81 is rotated to adjust the distance, and then the second connecting rod 82 is rotated to achieve height adjustment. Finally, the lamp head device 5 is rotated through the third damping joint device 4 to adjust the angle of the lamp head device 5, thereby keeping the horizontal height of the lamp head device 5 unchanged and the lighting angle unchanged.

[0053] The first connecting rod 81 and the second connecting rod 82 have the same structure but different lengths. The first connecting rod 81 is made of aluminum profile, which is low in cost and easy to process. The first connecting rod 81 is a hollow rod, and a first connecting rod cavity 812 is formed inside the first connecting rod 81. A first connecting rib 813 is provided at the center of the first connecting rod cavity 812. The first connecting rib 813 divides the first connecting rod cavity 812 into two cavities. The first connecting rib 813 can be used to increase the strength of the first connecting rod 81 and facilitate connection with the joint seat. A first through hole 814 is provided on the first connecting rib 813, and the first through hole 814 can be processed into a threaded hole. Both ends of the first connecting rod 81 are provided with a first slot 811 that communicates with the first connecting rod cavity 812.

[0054] The first damping joint assembly 2 includes a first fixed joint seat 21, a first movable joint seat 22, and a first disc damper 23. The disc damper is a mature existing product. The disc damper includes a rotatably connected damping rotating seat and a damping connecting seat. A damping ring is provided between the damping rotating seat and the damping connecting seat. The disc damper can maintain its state after the applied external force disappears. The damping rotating seat and the damping connecting seat are both waist-shaped, which is convenient for centering and allows for free rotation, making it easy to install. A damping threaded hole is provided in the center of the end of the damping rotating seat.

[0055] The first fixed joint seat 21 is an injection-molded plastic shell, and a first lower cavity 211 is provided at the bottom of the first fixed joint seat 21, and four first lower connecting holes 212 and a first fixing frame 213 are provided in the first lower cavity 211. A first lower joint seat 218 is provided at the top of the first fixed joint seat 21, and one side of the first lower joint seat 218 is provided with a first rotation groove 215 that matches the first damping rotating seat 232 of the first disc damper 23. The first damping rotating seat 232 is installed in the first rotation groove 215, and a first screw hole 216 is provided at the bottom of the first rotation groove 215. The first screw hole 216 is coaxial with the first damping threaded hole 233 on the first damping rotating seat 232, and the first damping threaded hole 233 is connected to the first screw hole 216 by a screw to realize the axial positioning of the first disc damper 23. The other side of the first lower joint seat 218 is provided with a first lower fixing slot 219 and a first lower process slot 210. The first lower fixing slot 219 is used to install the circular decorative cover 89. The first lower process slot 210 communicates with the first screw hole 216 to facilitate screw installation. The first fixed joint seat 21 is also provided with a first lower wire hole 217 that communicates with the first lower cavity 211. The first lower wire hole 217 also passes through the first lower joint seat 218 to facilitate internal wiring.

[0056] The first movable joint seat 22 is an injection-molded plastic shell. A first upper insertion rod 221 is provided at the bottom of the first movable joint seat 22, and a first upper cavity 223 is provided at the bottom of the first upper insertion rod 221. A first upper joint seat 229 and a first upper connecting hole 222 are provided at the top of the first movable joint seat 22. The first upper connecting hole 222 communicates with the first upper cavity 223. The first upper insertion rod 221 is inserted into the first slot 811 at one end of the first connecting rod 81. The first upper connecting hole 222 is connected to the first through hole 814 of the first connecting rod 81 by screws, thereby fixing the first movable joint seat 22 to the first connecting rod 81. A first annular wire groove 228, a first connecting groove 225, and a first upper wire hole 227 are provided on one side of the first upper joint seat 229. The first wire groove 228 and the first connecting groove 225 are coaxially arranged. The first upper wire hole 227 communicates with the first wire groove 228 and the first upper cavity 223, respectively, and the first upper wire hole 227 facilitates internal wiring. The first connecting groove 225 is a stepped through groove that matches the first damping connecting seat 231 of the first disc damper 23. The first damping connecting seat 231 is installed in the first connecting groove 225, and the first connecting groove 225 realizes the axial limitation of the first damping connecting seat 231. The other side of the first upper joint seat 229 is provided with a first upper fixing groove 224 and a first upper process groove 226 in sequence. The first upper fixing groove 224 is used to install the circular decorative cover 89. The first upper process groove 226 is connected to the first connecting groove 225 to facilitate the molding of the first connecting groove 225 and the installation of the first damping connecting seat 231. The first disc damper 23 sets the first movable joint seat 22 and the first fixed joint seat 21 opposite each other and can rotate relative to each other. The first lower wire hole 217 is connected to the first wire groove 228.

[0057] A power supply socket 214 is provided on the side surface of the first fixed joint seat 21 , and the power supply socket 214 is communicated with the first lower cavity 211 .

[0058] The power supply device includes a power connector 70 and a wire. The power connector 70 is mounted on the first fixing bracket 213, and is opposite the power socket 214. One end of the wire is connected to the power connector 70, and the wire passes through the first lower cavity 211, the first lower wire hole 217, the first wire groove 228, the first upper wire hole 227, and the first upper cavity 223.

[0059] The second damping joint device 3 includes a second fixed joint seat 32, a second movable joint seat 31 and a second disc damper 33. The second disc damper 33 has the same structure as the first disc damper 23, including a second damping rotating seat 332 and a second damping connecting seat 331 that are rotatably connected.

[0060] The second fixed joint seat 32 is an injection-molded plastic shell, and a second lower plug rod 321 is provided at the bottom of the second fixed joint seat 32, and a second lower cavity 323 is provided at the bottom of the second lower plug rod 321. The top of the second fixed joint seat 32 is provided with a second lower joint seat 327 and a second lower connecting hole 322. The second lower connecting hole 322 is communicated with the second lower cavity 323, and the second lower plug rod 321 is inserted into the second slot at the end of the second connecting rod 82. The second lower connecting hole 322 is connected to the second through hole of the second connecting rod 82 by a screw to realize the fixation between the second fixed joint seat 32 and the second connecting rod 82. A second rotation groove 325 is provided on one side of the second lower joint seat 327, which matches the second damping rotation seat 332 of the second disc damper 33. The second damping rotation seat 332 is mounted within the second rotation groove 325. A second screw hole 326 is provided at the bottom of the second rotation groove 325. The second screw hole 326 is coaxial with the second damping threaded hole 333 on the second damping rotation seat 332. The second damping threaded hole 333 is connected to the second screw hole 326 via a screw, thereby achieving axial positioning of the second disc damper 33. A second lower fixing groove 329 and a second lower process groove 328 are provided on the other side of the second lower joint seat 327. The second lower fixing groove 329 is used to mount the circular decorative cover 89. The second lower process groove 328 communicates with the second screw hole 326 to facilitate screw installation. The second fixed joint seat 32 is further provided with a second lower wire hole 324 communicating with the second lower cavity 323 . The second lower wire hole 324 also passes through the second lower joint seat 327 . The second lower wire hole 324 facilitates internal wiring.

[0061] The structure of the second movable joint seat 31 is identical to that of the first movable joint seat 22, and they are identical components, reducing costs and the number of parts. The second movable joint seat 31 is fixed to the other end of the first connecting rod 81 and is arranged opposite the second fixed joint seat 32. The second movable joint seat 31 is provided with a second connecting groove 311, a second upper wire hole 313, and a second wire groove 312. The second damping connecting seat 331 of the second disc damper 33 is fixed in the second connecting groove 311, allowing the second movable joint seat 31 and the second fixed joint seat 32 to rotate relative to each other. The second upper wire hole 313 is connected to the second wire groove 312.

[0062] The third damping joint device 4 includes a third fixed joint seat 41, a third movable joint seat 44, a third connecting seat 42 and a third disc damper 43. The third disc damper 43 has the same structure as the first disc damper 23, including a third damping rotating seat 432 and a third damping connecting seat 431 that are rotatably connected.

[0063] The third fixed joint seat 41 has a third insertion rod 411 at its bottom, which is provided with a third cavity 413. The top of the third fixed joint seat 41 is provided with an intermediate rotation groove 417 and a third connecting hole 414, located at the bottom of the intermediate rotation groove 417 and communicating with the third cavity 413. The third insertion rod 411 is inserted into the second slot at one end of the second connecting rod 82. The third connecting hole 414 is screwed to the second through-hole of the second connecting rod 82, thereby securing the third fixed joint seat 41 to the second connecting rod 82. A third connecting groove 418 and a third rotation hole 415 are also provided on either side of the top of the third fixed joint seat 41. The third damping rotation seat 432 of the third disc damper 43 is mounted within the third connecting groove 418. The third connecting groove 418 has the same structure as the first connecting groove 225, securing the third damping rotation seat 432. The third rotation hole 415 is a stepped hole with a retaining ring 416 that communicates with the intermediate rotation groove 417. The third fixed joint seat 41 is provided with a third lower wire hole 412 communicating with the third rotation hole 415 and the third cavity 413. The third fixed joint seat 41 is further provided with a third fixing groove 410 on both sides thereof for mounting the circular decorative cover 89.

[0064] The third connecting seat 42 is rotatably installed in the third rotating hole 415, and is provided with a movable limiting ring 421 that matches the fixed limiting ring 416. The movable limiting ring 421 is movably against the fixed limiting ring 416. The third connecting seat 42 is also provided with a third connecting cavity 422 and a third wire hole 423 that communicates with the third connecting cavity 422. The bottom of the third connecting cavity 422 is provided with a third screw hole 424.

[0065] The third movable joint seat 44 is movably disposed within the middle rotation groove 417 and is connected to the lamp holder device 5. A third rotation groove 444 and a third mounting groove 441 are respectively provided on either side of the third movable joint seat 44. The third mounting groove 441 and the third rotation groove 444 are communicated with via a third through hole 443. The third damping connecting seat 431 is mounted within the third rotation groove 444, and the third connecting seat 42 is mounted within the third mounting groove 441. The third through hole 443 is coaxially arranged with the third screw hole 424. A screw passes through the third screw hole 424 and the third through hole 443 and is connected to the third damping threaded hole on the third damping connecting seat 431, thereby achieving axial fixation of the third disc damper 43 and the connection between the third fixed joint seat 41, the third connecting seat 42, the third disc damper 43, and the third movable joint seat 44.

[0066] The third connecting seat 42 is further provided with a positioning tooth groove 425 , and the third mounting groove 441 is provided with a positioning protruding tooth. The positioning protruding tooth 442 is inserted into the positioning tooth groove 425 to prevent the third connecting seat 42 from rotating.

[0067] Example 2

[0068] like Figures 1 to 30 As shown, an adjustable desk lamp includes a desk lamp adjustment device, a supporting device 1, a lamp holder device 5, a control device 7 and a power supply device, the power supply device is installed on the first damping joint device 2, the first damping joint device 2 is installed on the supporting device 1, and is connected to the first connecting rod 81, the first connecting rod 81 is connected to the second connecting rod 82 through the second damping joint device 3, the second connecting rod 82 is connected to the lamp holder device 5 through the third damping joint device 4, the lamp holder device 5 is connected to the control device 7, the control device 7 is connected to the power supply device, and the control device 7 and the lighting lamp 63 are both installed on the lamp holder device 5.

[0069] The support device 1 includes a base plate 11, a cover plate 13 and a counterweight plate 12. The counterweight plate 12 is fixed to the base plate 11 by screws. The cover plate 13 is installed on the base plate 11 by screws and is located above the counterweight plate 12. The counterweight plate 12 can be made of an iron plate to increase the weight of the support device 1, thereby improving the stability of the support device 1 and preventing the desk lamp from tipping over. The bottom of the base plate 11 is equipped with rubber feet to increase friction. The cover plate 13 is provided with a fixing slot 131 and a fixing screw hole 132. The fixing slot 131 matches the first fixed joint seat 21. The first fixed joint seat 21 is socketed in the fixing slot 131. The fixing screw hole 132 is connected to the first lower connection hole 212 by screws.

[0070] The lamp holder assembly 5 includes a lamp holder, a lamp post 61, and a light diffuser 64. The lamp holder is mounted on the third movable joint seat 44 and forms an integral structure with the third movable joint seat 44. The lamp holder includes a lamp base 51 and a lamp plate 52. The lamp base 51 is a shell with a control cavity 511 disposed therein. The lamp base 51 is mounted on the third movable joint seat 44 and is provided with a fourth wire hole 455 that communicates with the third mounting slot 441 and the control cavity 511. The fourth wire hole 455 communicates with the third wire hole 423. The lamp plate 52 is mounted on the lamp holder 51 by screws. The control device 7 is mounted within the control cavity 511. The lamp plate 52 is provided with a positioning post 524 and an upper wiring hole 521. The lamp post 61 is provided with a positioning hole 612 and a lower wiring hole 611. The positioning post 524 is inserted into the positioning hole 612 and connected by screws. The upper wiring hole 521 communicates with the lower wiring hole 611 for passing wires. The lamp post 61 is an aluminum profile with an arc shape, forming a lighting groove 610. A first slot 613 and a second slot 614 are symmetrically arranged on either side of the lighting groove 610. The light diffuser 64 is mounted within the second slot 614. The lighting lamp 63 includes a light board and LED lamp beads, which are welded to the light board, which is mounted in the first slot 613. The lamp post 61 forms a T-shape with the lamp base, increasing the illuminated area. Side end caps 62 are also provided at each end of the lamp post 61. These end caps not only secure the light board and light diffuser 64, but also serve as a decorative element.

[0071] The control device 7 includes a control panel 71 and a control knob 73, a display 72 and an indicator light 74 all installed on the control panel 71. The control panel 71 is installed in the control cavity 511 of the lamp holder base 51. The control knob 73 protrudes from the outside of the lamp holder base for easy adjustment. The control knob 73 is used to switch modes to adjust the brightness of the light. The display 72 displays mode and time light information, and can use an LCD or a digital tube; the indicator light 74 is used to display the current status, which corresponds one-to-one to the status on the panel.

[0072] Example 3

[0073] like Figure 31 and Figure 32 As shown, the difference between this embodiment and the second embodiment lies in the support device 1. The support device 1 of this embodiment includes a U-shaped frame 91 and a locking nut 92. The U-shaped frame 91 is connected to the first fixed joint seat 21 of the first damping joint device 2 by screws. The locking nut 92 is provided on one side of the U-shaped frame 91 for clamping the U-shaped frame 91 on the object.

[0074] In order to increase the friction force, the supporting device 1 further includes an inner lining plate 93 , which is made of elastic material.

[0075] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A desk lamp adjustment device, characterized in that: include: A first damping joint device (2) is provided on the supporting device (1); A first connecting rod (81), one end of which is provided on the first damping joint device (2); A second damping joint device (3) is provided at the other end of the first connecting rod (81); a second connecting rod (82), one end of which is disposed on the second damping joint device (3); as well as The third damping joint device (4) is provided at the other end of the second connecting rod (82) and is connected to the lamp holder device (5).

2. A desk lamp adjustment device according to claim 1, characterized in that: The first damping joint device (2) comprises: A first fixed joint seat (21), the first fixed joint seat (21) being arranged on the supporting device (1) and provided with a first rotation groove (215); a first movable joint seat (22), the first movable joint seat (22) being arranged opposite to the first fixed joint seat (21) and connected to one end of the first connecting rod (81), and the first movable joint seat (22) being provided with a first connecting groove (225); and A first disc damper (23); a first damping rotating seat (232) and a first damping connecting seat (231) of the first disc damper (23) are connected to the first rotating groove (215) and the first connecting groove (225) respectively.

3. The table lamp adjustment device according to claim 1, characterized in that: The second damping joint device (3) comprises: A second fixed joint seat (32), the second fixed joint seat (32) is arranged at one end of the second connecting rod (82) and is provided with a second rotation groove (325); a second movable joint seat (31), the second movable joint seat (31) being arranged opposite to the second fixed joint seat (32) and connected to the other end of the first connecting rod (81), and a second connecting groove (311) being provided on the second movable joint seat (31); and A second disc damper (33), a second damping rotating seat (332) and a second damping connecting seat (331) of the second disc damper (33) are respectively connected to the second rotating groove (325) and the second connecting groove (311).

4. The table lamp adjustment device according to claim 1, characterized in that: The third damping joint device (4) comprises: A third fixed joint seat (41), the third fixed joint seat (41) being provided at the other end of the second connecting rod (82) and being provided with an intermediate rotation groove (417), a third connecting groove (418) communicating with the intermediate rotation groove (417), and a third rotation hole (415); a third movable joint seat (44), the third movable joint seat (44) being movably disposed in the middle rotation groove (417) and connected to the lamp holder device (5), and the third movable joint seat (44) being provided with a third rotation groove (444); a third connecting seat (42), the third connecting seat (42) being rotatably disposed in the third rotating hole (415); and A third disc damper (43), wherein a third damping rotating seat (432) of the third disc damper (43) is connected to the third connecting groove (418), and a third damping connecting seat (431) of the third disc damper (43) is installed on the third rotating groove (444) and connected to the third connecting seat (42).

5. The table lamp adjustment device according to claim 1, characterized in that: It also includes a decorative cover (89), which is arranged on both sides of the first damping joint device (2), the second damping joint device (3) and the third damping joint device (4).

6. An adjustable desk lamp, characterized in that: include: A desk lamp adjustment device as claimed in claim 1; A support device (1), wherein the first damping joint device (2) is provided on the support device (1); A lamp holder device (5) is provided on the third damping joint device (4); an illuminating lamp (63) provided on the lamp holder device (5); a control device (7), which is provided on the lamp holder device (5) or the support device (1) and is connected to the lighting lamp (63) and is used to control the lighting lamp (63); as well as A power supply device is provided on the support device (1) or the first damping joint device (2) and is connected to the control device (7).

7. The adjustable desk lamp according to claim 6, characterized in that: The supporting device (1) comprises: Bottom plate (11); a cover plate (13), the cover plate (13) being arranged on the base plate (11) and connected to the first damping joint device (2); and A counterweight plate (12), the counterweight plate (12) being arranged between the bottom plate (11) and the cover plate (13).

8. The adjustable desk lamp according to claim 6, characterized in that: The supporting device (1) comprises: A U-shaped frame (91), the U-shaped frame (91) being connected to the first damping joint device (2); and A locking nut (92) is provided on one side of the U-shaped frame (91) and is used to clamp the U-shaped frame (91) onto an object.

9. The adjustable desk lamp according to claim 6, characterized in that: The lamp holder device (5) comprises: A lamp holder seat, the lamp holder seat being arranged on the third damping joint device (4); A lamp post (61), the lamp post (61) being arranged on the lamp holder; a lighting lamp (63), the lighting lamp (63) being arranged on the lamp post (61); and A light-diffusing plate (64) is provided on the lamp post (61) and is arranged opposite to the lighting lamp (63).

10. The adjustable desk lamp according to claim 6, characterized in that: The control device (7) comprises: Control panel (71); A control knob (73) is provided on the control panel (71); a display (72), provided on the control panel (71); and An indicator light (74) is provided on the control panel (71).

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