Rotating structure of support and table lamp

Abstract

The utility model provides a rotating structure of a support, which comprises a connecting seat, a rotating head and a rotating core, and is characterized in that the connecting seat is provided with a rotating cavity and a wiring via hole communicated with the rotating cavity; the rotating head is rotatably arranged in the rotating cavity around a first axis, one side of the rotating head is provided with a first wiring channel connected with the wiring through hole, and the other side of the rotating head is provided with a sleeve hole connected with the first wiring channel; a circumferential stop structure is arranged on the inner wall surface of the sleeve hole or the inner wall surface of the first wiring channel; the rotating core is rotatably matched with the sleeve hole around a second axis, and the second axis is intersected with or perpendicular to the first axis; a second wiring channel is arranged on the outer side surface of the rotating core; the rotating core and the rotating head are in limiting fit along the second axis. According to the utility model, the rotating space of the rotating core is large, and the electric connecting wire is not easy to damage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device support, in particular to a rotating structure of a support and a desk lamp. BACKGROUND

[0002] At present, in order to realize more flexible angle adjustment, the electronic device support usually adopts a ball head structure, and a wiring channel is further arranged in the ball head for the convenience of cable arrangement. However, this structure is prone to cause large deflection of the cable arranged therein, and the matching surface between the ball head and the ball head retainer may further shear the cable, thereby further damaging the cable. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide a rotating structure of a support and a desk lamp, which aims to solve the technical problem that the existing rotating structure of a support is prone to damage the cable at the movable structure.

[0004] To achieve the above-mentioned purpose, the rotating structure of a support provided by the present application comprises a connecting seat, a rotating head and a rotating core, wherein,

[0005] The connecting seat is provided with a rotating cavity and a wiring via hole communicating with the rotating cavity;

[0006] The rotating head is rotatably arranged in the rotating cavity around a first axis, one side of the rotating head is provided with a first wiring channel connected with the wiring via hole, and the other side is provided with a sleeve hole connected with the first wiring channel; the inner wall surface of the sleeve hole or the inner wall surface of the first wiring channel adjacent to the sleeve hole is provided with a circumferential stop structure;

[0007] The rotating core is rotatably matched with the sleeve hole around a second axis, and the second axis intersects or is perpendicular to the first axis; the outer side surface of the rotating core is provided with a second wiring channel communicating with the first wiring channel; the rotating core and the rotating head are limited and matched along the second axis.

[0008] Preferably, the rotating head comprises a main body and an embedded block, one end of the main body close to the connecting seat is provided with an embedded groove communicating with the sleeve hole, and the other end is provided with the sleeve hole; the embedded block is fixedly embedded in the embedded groove, and the embedded block is provided with a wiring groove for forming the first wiring channel.

[0009] Preferably, the embedded groove and the wiring groove are oppositely and openly arranged on a third axis, and the third axis, the second axis and the first axis are perpendicularly arranged two by two; the inner wall surface of the embedded groove and the inner wall surface of the wiring groove form the first wiring channel.

[0010] Preferably, the inner wall surface of the wiring groove is provided with a protrusion, the insert block is provided with a first inner shaft hole extending to the interior of the protrusion, the inner wall surface of the insert groove is provided with a second inner shaft hole extending through the outer side surface of the main body corresponding to the first inner shaft hole; the inner wall surface of the rotating cavity is provided with an outer shaft hole extending through the outer side surface of the connecting seat corresponding to the second inner shaft hole; and the rotating structure of the support further comprises a rotating shaft penetrating the first inner shaft hole, the second inner shaft hole and the outer shaft hole.

[0011] Preferably, the second inner shaft hole is provided with two and is respectively located at two sides of the insert groove; the rotating shaft comprises a rod portion and a head portion provided at one end of the rod portion, the head portion protrudes from the outer peripheral surface of the rod portion, the outer peripheral surface of the rod portion comprises a smooth surface portion penetrating the second inner shaft hole and the first inner shaft hole and a threaded portion protruding from the outer side surface of the connecting seat; and the rotating structure of the support further comprises a nut connected with the threaded portion.

[0012] Preferably, the main body comprises a sleeve, a connecting plate and two wing plates, the sleeve hole is formed in the inner cavity of the sleeve, the connecting plate extends along the second axis from one end of the sleeve close to the connecting seat, and the two wing plates extend from the connecting plate and are oppositely arranged; the connecting plate and the two wing plates enclose to form the insert groove.

[0013] Preferably, among the two wing plates, one wing plate is provided with a first through hole, and the other wing plate is provided with a second through hole; the insert block is provided with a first fixing hole corresponding to the first through hole and a second fixing hole corresponding to the second through hole; and the rotating structure of the support comprises a first fastener penetrating and connecting the first through hole and the first fixing hole, and a second fastener penetrating and connecting the second through hole and the second fixing hole.

[0014] Preferably, the outer side surface of the insert block is provided with a recess corresponding to the two wing plates, respectively, and the side wall surface of the recess abuts against the side wall surface of the wing plate.

[0015] Preferably, the inner wall surface of the sleeve hole is provided with an annular limiting step, and the rotating core is provided with a limiting shoulder matched with the limiting step.

[0016] Preferably, the rotating head comprises a main body and an insert block, the main body is provided with an insert groove in communication with the sleeve hole at one end close to the connecting seat, and is provided with the sleeve hole at the other end; the insert block is fixedly embedded in the insert groove, the insert block is provided with a wiring groove for forming the first wiring channel, and the insert groove forms an assembly channel for the rotating core to be assembled into the sleeve hole; the limiting step is arranged at the upper portion of the sleeve hole, the limiting shoulder is formed at the upper end of the rotating core, and the limiting shoulder rotatably abuts against the end surface of the insert block away from the connecting seat.

[0017] Preferably, the inner wall surface of the sleeve hole or the inner wall surface of the sleeve hole adjacent to the first wire channel is provided with a circumferential stop structure; the rotating core is provided with a stop matching structure, and the stop matching structure abuts against the circumferential stop structure when the rotating core rotates relative to the rotating head around the second axis to a preset limit position.

[0018] Preferably, the circumferential stop structure is a sliding groove formed at the connection between the inner wall surface of the embedding groove and the inner wall surface of the sleeve hole; the circumferential stop structure has a guide surface extending around the second axis and a stop surface extending along the second axis; and the stop matching structure is a sliding convex provided on the outer peripheral surface of the rotating core and located in the sliding groove.

[0019] Preferably, the end surfaces of the rotating core and the main body facing each other are respectively provided with a limiting convex and a limiting concave, the limiting convex is slidably matched around the second axis, and the limiting convex and the limiting concave abut against each other or form a buffer gap in the direction around the second axis when the stop matching structure abuts against the circumferential stop structure.

[0020] Preferably, the rotating structure of the support further comprises a connecting arm, the connecting arm comprises a shell and a cover, the shell has a cavity, a first opening and a second opening which are in communication with the cavity, the connecting seat, the rotating head and the rotating core are arranged in the cavity, and at least the rotating core is exposed to the first opening; the connecting seat is fixedly connected to the shell, and the cover covers the second opening.

[0021] Preferably, the inner wall surface of the cavity is formed with a concave arc surface in the periphery of the first opening, and the outer wall surface of the rotating head is formed with a convex arc surface, the convex arc surface and the concave arc surface are rotatably matched around the first axis.

[0022] The application also provides a table lamp, comprising a support and a lamp body connected with the support, characterized in that the support comprises the rotating structure of the support as described above.

[0023] The rotating core of the rotating structure of the support has two rotation degrees of freedom, and the electric connecting line can be led out from the rotating core through the wire through hole, the first wire channel and the second wire channel, so that the rotating core can be flexibly rotated, the electric connecting line is arranged in the interior of the adjacent movable components, so that the electric connecting line can be better protected and is not easily cut by the movable components, in other words, the electric connecting line is not easily damaged, and thus the electric connecting line can reliably transmit electric energy and / or electric signals. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of a table lamp according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A three-dimensional structural diagram of the rotating structure of the central support;

[0027] Figure 3 for Figure 2 A three-dimensional structural diagram of the rotating structure of the central support from another angle;

[0028] Figure 4 for Figure 2 A front view schematic diagram of the rotating structure of the central support;

[0029] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the VV line;

[0030] Figure 6 for Figure 2 Exploded view of the rotating structure of the central support;

[0031] Figure 7 for Figure 6 Enlarged structural diagram of the middle connector;

[0032] Figure 8 for Figure 2 A further exploded structural diagram of the rotating structure of the central support;

[0033] Figure 9 for Figure 8 Enlarged structural diagram of the rotating head, rotating core, first fastener, and second fastener.

[0034] Figure 10 for Figure 8 A schematic diagram of the structure from another angle of the explosion-proof structure;

[0035] Figure 11 for Figure 10 Enlarged structural diagram of the middle shell, connector, connecting core, first fastener and second fastener.

[0036] Explanation of icon numbers:

[0037]

[0038] DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative effort fall within the protection scope of the present application.

[0040] Referring to Figures 1 to 7 A rotating structure of a support 200 includes a connecting seat 10, a rotating head 20 and a rotating core 40, wherein,

[0041] The connecting seat 10 is provided with a rotating cavity 11 and a wire through hole 12 in communication with the rotating cavity 11;

[0042] The rotating head 20 is rotatably arranged in the rotating cavity 11 about a first axis, one side of the rotating head 20 is provided with a first wire channel 21 connected with the wire through hole 12, and the other side is provided with a sleeve hole 24 connected with the first wire channel 21; the inner wall surface of the sleeve hole 24 or the inner wall surface of the first wire channel 21 adjacent to the sleeve hole 24 is provided with a circumferential stop structure 22;

[0043] The rotating core 40 is rotatably matched with the sleeve hole 24 about a second axis, and the second axis intersects or is perpendicular to the first axis; the outer side surface of the rotating core 40 is provided with a second wire channel 401 in communication with the first wire channel 21; and the rotating core 40 and the rotating head 20 are limited and matched along the second axis.

[0044] In the embodiment, the connecting seat 10 is used to connect the upper level components of the support 200, such as a connecting arm 80; the connecting cavity is used to accommodate the rotating head 20 and the rotating core 40, but can also be used to provide a rotating matching surface at the same time. In order to ensure the structural strength and reduce the volume, the connecting seat 10, the rotating head 20 and the rotating core 40 can be made of metal materials, such as stainless steel, aluminum alloy and the like.

[0045] Due to the rotation of the rotating head 20 around the first axis and the rotation of the rotating core 40 around the second axis, the combination of the two movements makes the rotating core 40 have two rotational degrees of freedom. The relative stop features of the circumferential stop structure 22 and the stop cooperation structure 41 are close to or away from each other during the rotation of the rotating core 40 relative to the rotating head 20; in order to make the rotation of the rotating core 40 more smooth and the installation more stable, the circumferential stop structure 22 can also provide a circumferential sliding guide surface, and a stop surface in the direction parallel to the second axis, that is, in the axial direction. The circumferential stop structure 22 and the stop cooperation structure 41, one of which can be a protruding structure, and the other can be an inner recess structure; in the deformed embodiment, both can be protruding structures.

[0046] The rotating structure of the support 200 has two rotational degrees of freedom, and the electric connection wire 90 can be led out from the rotating core 40 through the wiring through hole 12, the first wiring channel 21 and the second wiring channel 401, so that the rotating core 40 can be flexibly rotated, the electric connection wire 90 is arranged in the interior of the adjacent movable part, so that the electric connection wire 90 can be better protected and is not easy to be cut by the movable part, in other words, the electric connection wire 90 is not easy to be damaged, and thus the electric connection wire 90 can reliably transmit electric energy and / or electric signals.

[0047] Please refer to Figures 8 to 11 In an embodiment, the rotating head 20 includes a main body 23 and an embedded block 32, the main body 23 is provided with an embedded groove 25 communicated with the sleeve hole 24 at one end close to the connecting seat 10, and is provided with a sleeve hole 24 at the other end; the embedded block 32 is fixedly embedded in the embedded groove 25, and the embedded block 32 is provided with a wiring groove 33 for forming the first wiring channel 21.

[0048] In the embodiment, the rotating head 20 is provided with a split structure, and the main body 23 is provided with the embedded groove 25, so that the rotating core 40 is installed in the sleeve hole 24 through the embedded groove 25, thereby facilitating installation. The wiring groove 33 is arranged on the embedded block 32, so that the electric connection wire 90 is peripherally assembled to be arranged in the wiring groove 33, and the operation space of this assembly mode is large, so that the assembly is more convenient; in addition, the main body 23 can form a surrounding structure for the embedded block 32 through the embedded groove 25, thereby forming a more stable connection.

[0049] Further, the embedded groove 25 and the wiring groove 33 are oppositely open in the third axis, and the third axis, the second axis and the first axis are perpendicular to each other; the inner wall surface of the embedded groove 25 and the inner wall surface of the wiring groove 33 form the first wiring channel 21.

[0050] In the embodiment, since the second wiring channel 401 is enclosed by two separable parts, and the wiring groove 33 is transversely open, the electric connection wire 90 can also be transversely installed in the wiring groove 33, which further improves the convenience of assembly.

[0051] Further, the inner wall surface of the wire slot 33 is provided with a protruding portion 331, the embedded block 32 is provided with a first inner shaft hole 34 extending to the inside of the protruding portion 331, and the inner wall surface of the embedded slot 25 is provided with a second inner shaft hole 26 extending through the outer side surface of the main body 23 corresponding to the first inner shaft hole 34; the inner wall surface of the rotating cavity 11 is provided with an outer shaft hole 13 extending through the outer side surface of the connecting seat 10 corresponding to the second inner shaft hole 26; and the rotating structure of the support 200 further includes a rotating shaft 50 penetrating the first inner shaft hole 34, the second inner shaft hole 26 and the outer shaft hole 13.

[0052] In this embodiment, the rotating shaft 50 is arranged in the inside of the protruding portion 331, so the rotating shaft 50 is not exposed in the wire slot 33, and thus the rotating shaft 50 will not interfere with the electrical connection wire 90 in the wire slot 33, and further the electrical connection wire 90 will not be wound on the rotating shaft 50. The rotating shaft 50 penetrates the first inner shaft hole 34, the second inner shaft hole 26 and the outer shaft hole 13, so the connecting seat 10, the main body 23 and the embedded block 32 are not easily dislocated in the direction perpendicular to the rotating shaft 50.

[0053] Further, the second inner shaft hole 26 is provided with two holes respectively arranged on the two sides of the embedded slot 25; the rotating shaft 50 includes a rod portion 51 and a head portion 52 arranged at one end of the rod portion 51, the head portion 52 protrudes from the outer peripheral surface of the rod portion 51, the outer peripheral surface of the rod portion 51 includes a smooth surface portion penetrating the second inner shaft hole 26 and the first inner shaft hole 34 and a threaded portion protruding from the outer side surface of the connecting seat 10; and the rotating structure of the support 200 further includes a nut 60 connected with the threaded portion.

[0054] In this embodiment, the rotating shaft 50 is connected with the nut 60 so as to connect the connecting seat 10 and the rotating head 20 together, so that the connecting seat 10 and the rotating head 20 are not easily moved in the direction parallel to the first axis. The rod portion 51 is provided with the smooth surface portion, so the frictional force of the rotating head 20 when rotating relative to the connecting seat 10 can be reduced.

[0055] Further, the main body 23 includes a sleeve 27, a connecting plate 28 and two wing plates 29, the sleeve hole 24 is formed in the inner cavity of the sleeve 27, the connecting plate 28 extends from one end of the sleeve 27 close to the connecting seat 10 along the second axis, and the two wing plates 29 extend from the connecting plate 28 and are oppositely arranged; and the connecting plate 28 and the two wing plates 29 enclose to form the embedded slot 25.

[0056] In this embodiment, the main body 23 is integrally formed in a thin-walled structure so as to reduce the volume and weight, and the open structure of the embedded slot 25 and the sleeve hole 24 is beneficial to the processing and manufacturing of the main body 23.

[0057] Further, one of the two wings 29 is provided with a first through hole 291, and the other wing 29 is provided with a second through hole 292; the embedded block 32 is provided with a first fixing hole 35 corresponding to the first through hole 291, and a second fixing hole 36 corresponding to the second through hole 292; the rotating structure of the bracket 200 includes a first fastener 70a penetrating and connecting the first through hole 291 and the first fixing hole 35, and a second fastener 70a penetrating and connecting the second through hole 292 and the second fixing hole 36. In this embodiment, the two wings 29 are fixedly connected with the embedded block 32 through the first fastener 70a and the second fastener 70a respectively, so that the connection between the embedded block 32 and the main body 23 is more firm, and the stress on the embedded block 32 is more balanced.

[0058] Further, the outer side of the embedded block 32 is provided with a sink 37 corresponding to the two wings 29 respectively, and the side wall surface of the sink 37 abuts against the side wall surface of the wing 29. In this embodiment, the sink 37 can better limit the wing 29, and reduce the size in the direction parallel to the first axis, so that the structure is more compact.

[0059] Further, the inner wall surface of the sleeve hole 24 is provided with an annular limiting step 271, and the rotating core 40 is provided with a limiting shoulder 42 matched with the limiting step 271. In this embodiment, the limiting step 271 and the limiting shoulder 42 can conveniently realize one-sided limiting, for example, in the direction of gravity, when the rotating core 40 is arranged downward, the rotating core 40 can be prevented from being separated downward from the sleeve hole 24.

[0060] Further, the rotating head 20 includes the main body 23 and the embedded block 32, the main body 23 is provided with an embedded groove 25 communicating with the sleeve hole 24 at one end close to the connecting seat 10, and is provided with a sleeve hole 24 at the other end; the embedded block 32 is fixedly embedded in the embedded groove 25, and the embedded block 32 is provided with a wire slot 33 forming a first wire channel 21, and the embedded groove forms an assembly channel for the rotating core 40 to be assembled into the sleeve hole 24. The inner wall surface of the sleeve 27 is provided with an annular limiting step 271 at a position adjacent to the connecting plate 28, the limiting step 271 is arranged at the upper part of the sleeve hole, the limiting shoulder 42 is arranged at the upper end of the rotating core 40, and the limiting shoulder 42 rotatably abuts against the end surface of the embedded block 32 away from the connecting seat 10.

[0061] In the embodiment, the rotating head 20 is provided with a split structure, and the main body 23 is provided with an embedding groove 25. Therefore, the rotating core 40 is assembled into the sleeve hole 24 through the assembly channel provided by the embedding groove 25, thereby facilitating the installation. The wiring groove 33 is arranged on the embedding block 32, thereby facilitating the peripheral assembly of the electric connection wire 90 to be arranged in the wiring groove 33. In this way, the operation space is large, and therefore, the assembly is more convenient. In addition, the main body 23 can form a surrounding structure on the embedding block 32 through the embedding groove 25, thereby forming a more secure connection. By arranging the limiting step 271, the main body 23 of the rotating head 20 and the limiting shoulder 42 of the rotating core 40 connected to the connecting seat 10 can form a clamping effect, thereby preventing the rotating core 40 from moving in the direction parallel to the second axis.

[0062] Further, the inner wall surface of the first wiring channel 21 is provided with a circumferential stop structure 22 adjacent to the inner wall surface of the sleeve hole or the inner wall surface of the sleeve hole 24. The rotating core 40 is provided with a stop cooperation structure 41. When the rotating core 40 rotates relative to the rotating head 20 around the second axis to a preset limit position, the stop cooperation structure 41 abuts against the circumferential stop structure 22. In the embodiment, the rotating range of the rotating core 40 is limited by the mutual cooperation of the circumferential stop structure 22 and the stop cooperation structure 41. This can prevent the cable from being twisted too many times and being twisted off.

[0063] Further, the rotating head 20 includes the main body 23 and the embedding block 32. The main body 23 is provided with the embedding groove 25 communicated with the sleeve hole 24 at one end close to the connecting seat 10, and is provided with the sleeve hole 24 at the other end. The embedding block 32 is fixedly embedded in the embedding groove 25. The embedding block 32 is provided with the wiring groove 33 for forming the first wiring channel 21. The embedding groove forms an assembly channel for the rotating core 40 to be assembled into the sleeve hole 24. The circumferential stop structure 22 is a sliding groove arranged at the connection between the inner wall surface of the embedding groove 25 and the inner wall surface of the sleeve hole 24. The circumferential stop structure 22 has a guide surface extending around the second axis and a stop surface extending along the second axis. The stop cooperation structure 41 is a sliding convex arranged on the outer circumferential surface of the rotating core 40 and located in the sliding groove.

[0064] In the embodiment, the circumferential stop structure 22 is a sliding groove, and the stop cooperation structure 41 is a sliding convex. This arrangement not only facilitates the processing, but also provides an additional sliding cooperation pair, thereby making the rotation of the rotating core 40 more stable.

[0065] Further, the end surfaces of the rotating core 40 and the main body 23 are respectively provided with the limiting convex 43 and the limiting recess 31. The limiting convex 43 is slidably cooperated around the second axis. When the stop cooperation structure 41 abuts against the circumferential stop structure 22, the limiting convex 43 abuts against the limiting recess 31 in the direction around the second axis or forms a buffer gap.

[0066] In the embodiment, when the circumferential stop structure 22 and the stop matching structure 41 are damaged, the cooperation between the limiting boss 43 and the limiting groove 31 can form a backup circumferential limiting scheme, so that the rotating structure of the support 200 is more reliable.

[0067] Further, the rotating structure of the support 200 further comprises a connecting arm 80, the connecting arm 80 comprises a shell 81 and a cover 85, the shell 81 has a cavity 82, and a first opening 83 and a second opening 84 in communication with the cavity 82, the connecting seat 10, the rotating head 20 and the rotating core 40 are arranged in the cavity 82, and at least the rotating core 40 is exposed to the first opening 83; the connecting seat 10 is fixedly connected to the shell 81, and the cover 85 covers the second opening 84.

[0068] In the embodiment, the connecting arm 80 can conveniently connect other structural components of the support 200, such as the vertically extending support arm. The shell 81 and the cover 85 of the connecting arm 80 can form a cladding for the connecting seat 10 and other components, so as to reduce the interference of objects in the environment on the rotating head 20 and the like. The connecting arm 80 comprises the shell 81 and the cover 85 arranged separately, so as to facilitate the processing of the internal structure.

[0069] Further, the inner wall surface of the cavity 82 is formed with a concave arc surface 821 around the periphery of the first opening 83, and the outer wall surface of the rotating head 20 is formed with a convex arc surface 38, the convex arc surface 38 and the concave arc surface 821 are rotatably matched around the first axis.

[0070] In the embodiment, the concave arc surface 821 of the cavity 82 of the shell 81 and the convex arc surface 38 of the rotating head 20 can form additional support for the rotation of the rotating head 20, so that the forces borne by the various rotating matching surfaces are relatively balanced, and thus the service life of the rotating structure of the support 200 in the embodiment can be prolonged.

[0071] Reference Figure 1 The application also provides a table lamp 100, comprising a support 200 and a lamp body 300 connected with the support 200, the support 200 comprises the rotating structure of the support 200 as above. In the embodiment, the specific structure of the rotating structure of the support 200 is referred to the above embodiments, since the table lamp 100 adopts all the technical solutions of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. In order to facilitate the placement of the support 200, a base can also be included, and in order to facilitate the adjustment in a larger range, the support 200 can also comprise a telescopic cylinder device. The lamp body 300 is used to generate light, and the type of light source of the lamp body 300 is not limited.

[0072] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art will understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotating structure of a support characterized by, The rotating structure of the support comprises a connecting base, a rotating head and a rotating core, wherein, the connecting base is provided with a rotating cavity and a wire through hole in communication with the rotating cavity; the rotating head is rotatably arranged in the rotating cavity around a first axis, one side of the rotating head is provided with a first wire channel in communication with the wire through hole, and the other side of the rotating head is provided with a sleeve hole in communication with the first wire channel; the rotating core is rotatably arranged in the sleeve hole around a second axis, the second axis intersects or is perpendicular to the first axis, the outer side of the rotating core is provided with a second wire channel in communication with the first wire channel, and the rotating core and the rotating head are limitedly arranged along the second axis.

2. The rotating structure of a support according to claim 1, wherein the rotating head comprises a main body and an embedded block, one end of the main body close to the connecting base is provided with an embedded groove in communication with the sleeve hole, and the other end of the main body is provided with the sleeve hole, the embedded block is fixedly arranged in the embedded groove, and the embedded block is provided with a wire groove for forming the first wire channel.

3. The rotating structure of a support according to claim 2, wherein the embedded groove and the wire groove are oppositely arranged on a third axis, the third axis, the second axis and the first axis are perpendicular to each other, and the inner wall surface of the embedded groove and the inner wall surface of the wire groove form the first wire channel.

4. The rotating structure of a support according to claim 2 or 3, characterized in that the inner wall surface of the wire groove is provided with a protruding part, the embedded block is provided with a first inner shaft hole extending into the protruding part, the inner wall surface of the embedded groove is provided with a second inner shaft hole penetrating the outer side of the main body and corresponding to the first inner shaft hole, the inner wall surface of the rotating cavity is provided with an outer shaft hole penetrating the outer side of the connecting base and corresponding to the second inner shaft hole, and the rotating structure of the support further comprises a rotating shaft penetrating the first inner shaft hole, the second inner shaft hole and the outer shaft hole.

5. The rotating structure of claim 4, wherein the second inner shaft hole is provided with two second inner shaft holes respectively arranged on two sides of the embedded groove, the rotating shaft comprises a rod part and a head part arranged at one end of the rod part, the head part protrudes from the outer peripheral surface of the rod part, the outer peripheral surface of the rod part comprises a smooth part penetrating the second inner shaft hole and the first inner shaft hole and a threaded part protruding from the outer side of the connecting base, and the rotating structure of the support further comprises a nut connected with the threaded part.

6. The rotating structure of the support according to claim 4, wherein the main body comprises a sleeve, a connecting plate and two wing plates, the sleeve hole is formed in the inner cavity of the sleeve, the connecting plate is formed by extending from one end of the sleeve close to the connecting base along the second axis, and the two wing plates are arranged opposite to each other and extend from the connecting plate, and the connecting plate and the two wing plates form the embedded groove.

7. The rotating structure of the support according to claim 6, wherein one of the two wing plates is provided with a first through hole, and the other wing plate is provided with a second through hole, the embedded block is provided with a first fixing hole corresponding to the first through hole and a second fixing hole corresponding to the second through hole, and the rotating structure of the support comprises a first fastener penetrating the first through hole and the first fixing hole and a second fastener penetrating the second through hole and the second fixing hole.

8. The rotating structure of claim 6, wherein the outer side of the embedded block is provided with a recess corresponding to the two wing plates, and the side wall surface of the recess abuts against the side wall surface of the wing plate.

9. The rotating structure of claim 1, wherein The inner wall of the sleeve hole is provided with an annular limiting step, and the rotating core is provided with a limiting shoulder matched with the limiting step.

10. The rotating structure of claim 9, wherein The rotating head comprises a main body and an embedded block. The main body is provided with an embedded groove communicated with the sleeve hole at one end close to the connecting seat, and is provided with the sleeve hole at the other end. The embedded block is fixedly embedded in the embedded groove. The embedded block is provided with a wire slot for forming the first wire channel. The embedded groove forms an assembly channel for assembling the rotating core into the sleeve hole. The limiting step is arranged at the upper portion of the sleeve hole, and the limiting shoulder is formed at the upper end of the rotating core. The limiting shoulder is rotatably abutted against the end surface of the embedded block away from the connecting seat.

11. The rotating structure of a support according to claim 1 or 9, wherein The inner wall surface of the first wire channel adjacent to the sleeve hole or the inner wall surface of the sleeve hole is provided with a circumferential stop structure. The rotating core is provided with a stop cooperation structure. When the rotating core rotates relative to the rotating head around the second axis to a preset limit position, the stop cooperation structure is abutted against the circumferential stop structure.

12. The rotating structure of the support according to claim 11, wherein The rotating head comprises a main body and an embedded block. The main body is provided with an embedded groove communicated with the sleeve hole at one end close to the connecting seat, and is provided with the sleeve hole at the other end. The embedded block is fixedly embedded in the embedded groove. The embedded block is provided with a wire slot for forming the first wire channel. The embedded groove forms an assembly channel for assembling the rotating core into the sleeve hole. The circumferential stop structure is a sliding groove opened at the connection between the inner wall surface of the embedded groove and the inner wall surface of the sleeve hole. The circumferential stop structure has a guide surface extending around the second axis and a stop surface extending along the second axis. The stop cooperation structure is a sliding convex provided on the outer peripheral surface of the rotating core and located in the sliding groove.

13. The rotating structure of claim 12, wherein The end surfaces of the rotating core and the main body facing each other are respectively provided with a limiting convex and a limiting recess. The limiting convex is slidably matched around the second axis. When the stop cooperation structure is abutted against the circumferential stop structure, the limiting convex and the limiting recess are abutted or have a buffer gap in the direction around the second axis.

14. The rotating structure of claim 1, wherein The rotating structure of the support further comprises a connecting arm. The connecting arm comprises a shell and a cover. The shell has a containing cavity, a first opening and a second opening communicated with the containing cavity. The connecting seat, the rotating head and the rotating core are arranged in the containing cavity, and at least the rotating core is exposed to the first opening. The connecting seat is fixedly connected to the shell, and the cover covers the second opening.

15. The rotating structure of claim 14, wherein The inner wall surface of the containing cavity is formed with a concave arc surface at the periphery of the first opening. The outer wall surface of the rotating head is formed with a convex arc surface. The convex arc surface is rotatably matched with the concave arc surface around the first axis.

16. A desk lamp comprising a stand and a lamp body connected to the stand, characterized in that, The support comprises the rotating structure of the support according to any one of claims 1-15.

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