CN212840898U - Desk lamp - Google Patents

Abstract

The application relates to a desk lamp, which comprises a support rod, a lamp panel and a hinge assembly; the lamp panel comprises a housing and a light source assembly, the housing encloses an installation space, and the light source assembly is arranged in the installation space; the lamp panel is connected with the supporting rod through a hinge assembly; the light source assembly comprises a first light bar and a second light bar, the first light bar is arranged along the peripheral side of the light outlet so as to emit annular light at the light outlet, and the second light bar is arranged in the installation space along the length direction of the lamp panel. The utility model provides a desk lamp utilizes first lamp strip to produce annular light efficiency in light-emitting outlet department to utilize the installation space in the clamshell to set up the second lamp strip that extends along lamp plate length direction, with when second lamp strip is luminous, the lamp plate can demonstrate the luminous effect of strip, then makes the illuminating effect of desk lamp more abundant, satisfies multiple lighting scene's needs.

Description

Desk lamp

Technical Field

The application relates to the technical field of lamps, in particular to a desk lamp.

Background

The desk lamp is a common lighting device in daily life, is popular with consumers, and particularly has the advantages of small size, small occupied space and convenience in arrangement. The current desk lamp has a single lighting effect and cannot meet the lighting requirements of different scenes of consumers.

SUMMERY OF THE UTILITY MODEL

The application provides a desk lamp to solve the single problem of illuminating effect.

A desk lamp, comprising:

a support bar;

the lamp panel comprises a housing and a light source assembly, the housing encloses an installation space, and the light source assembly is arranged in the installation space;

the lamp panel is connected with the support rod through the hinge assembly;

wherein, the clamshell has relative first surface and second surface, be formed with the light-emitting window on the clamshell, the light-emitting window runs through the first surface with the second surface, the light source subassembly includes first lamp strip and second lamp strip, first lamp strip is followed all sides of light-emitting window set up, with in light-emitting window department sends annular light, the second lamp strip is followed the length direction of lamp plate arrange in installation space.

In one embodiment, the hinge assembly comprises a rotating rod, a rotating ball and a ball bushing, one end of the rotating rod is connected with the lamp panel, the other end of the rotating rod is connected with the rotating ball, the rotating ball is rotatably arranged on the ball shaft sleeve and is provided with a wire passing hole for a lead electrically connected with the light source component to pass through, the rotating rod is hollow and tubular, and can communicate the installation space with the thread passing hole, a gap is formed between the side wall of the rotating ball at the side provided with the thread passing hole and the side wall of the ball shaft sleeve, so that the wire passing hole is communicated with the inner cavity of the ball shaft sleeve through the gap, one end of the ball shaft sleeve far away from the lamp panel is connected with the support rod, the support rod is provided with a tube cavity, and the tube cavity of the support rod is communicated with the inner cavity of the ball shaft sleeve.

In one embodiment, the ball sleeve is in threaded connection with the support rod, or the ball sleeve and the support rod are inserted into each other, or the ball sleeve and the support rod are connected together through a connecting sleeve.

In one embodiment, a damping piece and an elastic piece are arranged in the ball shaft sleeve, and the elastic piece is used for elastically abutting the damping piece against the rotating ball, so that the damping piece can perform friction positioning on the rotating ball, and the lamp panel is locked at a rotating position relative to the supporting rod.

In one embodiment, the surface of the damping member abutting against the rotating ball is a curved surface having a curvature substantially equal to a curvature of the surface of the rotating ball.

In one embodiment, the elastic member includes a spring, a washer is disposed on a side of the damping member facing away from the rotating ball, and the spring elastically abuts between the washer and the support rod.

In one embodiment, the damping part is provided with a wire passing groove communicated with the gap, and the lead can extend into the wire passing groove along the gap and sequentially pass through the gasket and the spring to enter the tube cavity.

In one embodiment, the housing cover comprises an upper shell and a lower shell, the upper shell and the lower shell are connected together to enclose the installation space, one of the upper shell and the lower shell is provided with an annular lampshade, the other of the upper shell and the lower shell is provided with a through hole, and the edge of the through hole is abutted to the edge of the annular lampshade to form the light outlet.

In one embodiment, a connecting frame is arranged in the mounting space and comprises an annular connecting portion, the annular connecting portion is arranged around the periphery of the annular lampshade, the annular connecting portion and the annular lampshade are arranged at intervals to form an annular groove, and the first lamp strip is arranged in the annular groove.

In one embodiment, a light homogenizing piece is arranged in the annular groove and is positioned on the light emitting side of the first light bar.

In one embodiment, the light outlet is located at an end of the lamp panel, and the first lamp strip and the second lamp strip are respectively located at two sides of a connecting position of the support rod and the lamp panel.

The utility model provides a desk lamp, the light-emitting window that runs through two surfaces is seted up to the clamshell of its lamp plate, and enclose in the week side of light-emitting window and establish first lamp strip, produce annular light efficiency in light-emitting window department with utilizing first lamp strip, and utilize the installation space in the clamshell to set up the second lamp strip that extends along lamp plate length direction, when second lamp strip is luminous, the lamp plate can demonstrate the strip luminous effect, then make the illuminating effect of desk lamp more abundant, satisfy multiple lighting scene's needs.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of a desk lamp according to an embodiment;

fig. 2 is a schematic structural diagram of another embodiment of a desk lamp according to an embodiment of the present application;

FIG. 3 is a partially enlarged view of the structure of the portion circled A in FIG. 1;

FIG. 4 is an exploded view of the hinge assembly and the support rod of the desk lamp according to an embodiment;

FIG. 5 is a cross-sectional view of the hinge assembly and the support rod shown in FIG. 4 in an exploded state;

FIG. 6 is a cross-sectional view of the desk lamp shown in FIG. 2 at section S;

FIG. 7 is a partially enlarged view of the structure of the portion encircled in B in FIG. 6;

FIG. 8 is a partially enlarged view of the structure of the portion encircled by circle C in FIG. 6;

FIG. 9 is an exploded view of the lamp panel according to an embodiment;

fig. 10 is a partially enlarged schematic view of the structure of the portion indicated by the circle D in fig. 9.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, a desk lamp in an embodiment of the present application includes a support rod 10, a lamp panel 20, and a hinge assembly 30. Lamp plate 20 is connected with bracing piece 10 through hinge assembly 30 to when bracing piece 10 supported lamp plate 20, lamp plate 20 can rotate through the relative bracing piece 10 of hinge assembly 30, with adjustment illumination direction.

It should be noted that, as shown in fig. 2, one end of the supporting rod 10 away from the lamp panel 20 may be fixed on the lamp holder 40, so that the desk lamp can be flexibly placed on a table top or a table top by using the lamp holder 40.

In other embodiments, the lamp socket 40 may be omitted, and one end of the support rod 10 far away from the lamp panel 20 is directly fixed on a wall surface or a desktop, and the support rod 10 can be used to stably support the lamp panel 20, and the lamp panel 20 can still rotate relative to the support rod 10 to adjust the lighting direction. As for whether the one end of bracing piece 10 that keeps away from lamp plate 20 sets up lamp stand 40, do not do the injecing here, as long as be connected between lamp plate 20 and the bracing piece 10 to can adapt to lamp plate 20's illumination direction adjustment can.

As shown in fig. 1 and 6, the lamp panel 20 includes a housing 21 and a light source assembly 22, the housing 21 encloses an installation space, and the light source assembly 22 is disposed in the installation space.

The housing 21 has opposing first and second surfaces 201 and 202. The housing 21 is formed with a light outlet 20a, the light outlet 20a penetrates the first surface 201 and the second surface 202, and the light source assembly 22 includes a first light bar 221 and a second light bar 222.

The first light bar 221 is disposed along the peripheral side of the light outlet 20a, that is, the extending direction of the first light bar 221 is not straight, but is curved, so that the light emitted by the first light bar 221 will be emitted from the sidewall of the light outlet 20a to form annular light similar to the contour of the light outlet 20a, which is not only beautiful, but also because the light outlet 20a penetrates through the first surface 201 and the second surface 202, the annular light of the first light bar 221 at the light outlet 20a has good light effect in the direction towards the first surface 201 and the second surface 202 in space, thereby improving the stereoscopic visual effect of annular light emission.

As shown in fig. 6 and 9, the second light bar 222 is disposed in the installation space along the length direction of the light panel 20, so that when the second light bar 222 emits light, the light panel 20 exhibits a strip-shaped light emitting effect, and then forms a plurality of light effects with the annular light of the first light bar 221 at the light outlet 20 a.

For example, in some embodiments, the first light bar 221 emitting the ring-shaped light effect is used as a night light, and the second light bar 222, which is in a straight bar shape and is arranged along the length direction of the lamp panel 20, is used as an illumination, so that the requirement of selecting a proper illumination mode in different use environments can be met.

For another example, when the desk lamp is not needed for high-brightness illumination at night, the second light bar 222 can be turned off, and the first light bar 221 is turned on to emit a relatively soft light for use as a night light. Accordingly, when high-brightness illumination is required by the desk lamp, the first light bar 221 can be turned off and the second light bar 222 can be turned on, so that the desk lamp enters another illumination mode. The setting makes the illumination mode of desk lamp more various to satisfy many scenes and use. The lighting mode of the desk lamp, that is, the on or off timing of the first light bar 221 and the second light bar 222, is not limited herein.

In some embodiments, as shown in fig. 1 and fig. 6, the light outlet 20a is located at an end of the lamp panel 20, the first lamp strip 221 and the second lamp strip 222 are respectively located at two sides of a connecting position of the support rod 10 and the lamp panel 20, and the light outlet 20a is disposed at the end of the lamp panel 20, so that the first lamp strip 221 emits light at the light outlet 20 to generate an annular lighting effect, which is more obvious, and thus the overall visual effect of the desk lamp is improved.

As shown in fig. 1 to 3, the hinge assembly 30 includes a rotating rod 31, a rotating ball 32, and a ball bushing 33. Dwang 31's one end is connected with lamp plate 20, the other end links to each other with rolling ball 32, rolling ball 32 rotationally sets up in ball axle sleeve 33, rolling ball 32 has seted up line hole 32a, it is used for supplying and passes with light source subassembly 22 electric connection's wire 50 to cross line hole 32a, dwang 31 is the cavity tubulose, and can communicate installation space and cross line hole 32a, there is clearance 33a between the lateral wall of the one side of line hole 32a and ball axle sleeve 33 is seted up to rolling ball 32, so that it is linked together through the inner chamber of this clearance 33a with ball axle sleeve 33 to cross line hole 32a, the one end of keeping away from lamp plate 20 of ball axle sleeve 33 is connected.

As shown in fig. 4 and 5, the support rod 10 has a lumen 10a, that is, the support rod 10 is in a hollow tubular shape, so that the support rod 10 not only can be used for supporting the lamp panel 20, but also can meet the requirement of internal routing, so that the wire 50 connected to the lamp panel 20 cannot be exposed, and the integral aesthetic feeling of the desk lamp is maintained. Specifically, after the ball bushing 33 is connected with the support rod 10, the inner cavity of the ball bushing 33 is communicated with the lumen 10a of the support rod 10, so that the guide 50 passing through the wire passing hole 32a of the rotary ball 32 can enter the inner cavity of the ball bushing 33 from the gap 33a and finally enter the lumen 10a of the support rod 10, thereby realizing the internal routing of the desk lamp. In this embodiment, because 50 with light source subassembly 22 electric connection's of lamp plate 20 wire can pass dwang 31 and rolling ball 32 in proper order, and get into ball axle sleeve 33 from the line hole 32a that crosses of rolling ball 32, finally follow ball axle sleeve 33 entering bracing piece 10, thereby not only make 50 of wire connecting light source subassembly 22 not expose, and can reduce lamp plate 20 relative bracing piece 10 rotation in-process, wire 50 is owing to can not be by the centre gripping between two rotating-structure's butt face, thereby can reduce the risk that wire 50 was worn and torn.

It should be noted that, the connection manner between the rotating rod 31 and the housing cover 21 is not limited herein, for example, in some embodiments, as shown in fig. 8 to 10, the rotating rod 31 is screwed to the mounting plate 31a, and the mounting plate 31a is mounted to the housing cover 21, so that the rotating rod 31 and the housing cover 21 are fixedly mounted together.

The ball bushing 33 is threadedly coupled to the support pole 10 so that the ball bushing 33 can be easily detached from the support pole 10 to flexibly dispose the rotary ball 32 in the ball bushing 33.

In other embodiments, the ball bushing 33 and the support rod 10 are inserted into each other, or the ball bushing 33 and the support rod 10 are connected to each other by a connecting bushing. For the connection between the ball sleeve 33 and the support rod 10, no further description is needed, as long as the installation and disassembly requirements of the internal structural component of the ball sleeve 33 can be met, so that the ball sleeve 33 can be installed on the support rod 10 and detached from the support rod 10.

Referring to fig. 3 to 5, a damping member 34 and an elastic member 35 are disposed in the ball bushing 33, and the elastic member 35 is used for elastically abutting the damping member 34 against the rotating ball 32, so that the damping member 34 can frictionally position the rotating ball 32 and lock the rotating position of the lamp panel 20 relative to the support rod 10. In this embodiment, the damping member 34 can frictionally position the rolling ball 32 under the driving of the elastic member 35, so that after the lamp panel 20 rotates relative to the support rod 10, the damping member 34 can lock the relative position of the lamp panel 20 relative to the support rod 10, so that the lamp panel 20 illuminates towards an expected direction, and when the illumination direction needs to be adjusted, the lamp panel 20 only needs to be swung to overcome the retarding force of the damping member 34 on the rolling ball 32.

As shown in fig. 6 and 8, the surface of the damper 34 that contacts the rotating ball 32 is a curved surface, and the curvature of the curved surface is substantially equal to the curvature of the surface of the rotating ball 32. This kind of curved surface contact's mode can increase the surface friction of damping piece 34 with ball 32 to make damping piece 34 can provide better damping effect, thereby make lamp plate 20 can stably throw light on towards the direction that needs the illumination.

It should be noted that the elastic member 35 may be an elastic rod or an elastic rod.

In some embodiments, as shown in fig. 6 and 7, the elastic member 35 may be a spring, a washer 36 is disposed on a side of the damping member 34 facing away from the rotating ball 32, and the elastic member 35 elastically abuts between the washer 36 and the support rod 10, so that the elastic force provided by the elastic member 35 can make the washer 36 abut against the damping member 34, and keep the damping member 34 abutting against the rotating ball 32, so as to form a stable friction positioning effect on the rotating ball 32.

In this embodiment, when the elastic member 35 is a spring, the washer 36 can provide a relatively uniform contact surface between the damping member 34 and the spring, so that the acting force of the spring on the damping member 34 is relatively uniform, and the elastic expansion of the spring between the washer 36 and the support rod 10 does not deviate from its own axis, so as to stably elastically support the damping member 34 against the rotating ball 32.

The damping member 34 is opened with a through-slot 34a communicating with the gap 33a, and the lead 50 can extend into the through-slot 34a along the gap 33a and enter the lumen 10a through the washer 36 and the spring in sequence. This kind of structure setting can reduce lamp plate 20 relative support bar 10 rotation in-process, the wearing and tearing between the lateral wall of wire 50 and ball axle sleeve 33.

Specifically, since the grommet 36 is disposed in the ball bushing 33, when the lead wire 50 passes through the inner hole 36a of the grommet 36 from the wire passage groove 34a of the damping member 34, the lead wire 50 will not contact the ball bushing 33 as much as possible, thereby reducing the possibility that the lead wire 50 is worn by moving relative to the inner wall of the ball bushing 33.

As shown in fig. 9 and 10 in combination, in some embodiments, the housing cover 21 includes an upper housing 211 and a lower housing 212, and the upper housing 211 and the lower housing 212 are coupled together to enclose a resultant installation space. One of the upper and lower cases 211 and 212 is provided with a ring-shaped lamp cover 213, and the other is provided with a through hole 21a, and the edge of the through hole 21a is adjacent to the edge of the ring-shaped lamp cover 213, so as to form a light outlet 20a, specifically, the light outlet 20a is enclosed by the ring-shaped lamp cover 213. Annular lamp shade 213 both can satisfy light like this and see through the needs for the light that first lamp strip 221 sent forms annular light effect after seeing through annular lamp shade 213, and annular lamp shade 213 can be to components such as the inside first lamp strip 221 of installation space of lieing in dustproof protection simultaneously.

In this embodiment, the ring-shaped lamp housing 213 may be mounted on the upper case 211 or the lower case 212 by a detachable structure.

In other embodiments, the annular lampshade 213 may also be integrally formed on the upper shell 211 or the lower shell 212, so as to reduce the number of parts, simplify the assembly structure, and improve the assembly effect.

It should be noted that the housing 21 serves as a carrier for installing the light source assembly 22 and can adapt to the penetrating requirement of the light emitted by the light source assembly 22, and when the housing 21 includes the upper shell 211 and the lower shell 212, the portion of the lower shell 212 corresponding to the second light bar 222 is made of a transparent material, so that the light emitted by the second light bar 222 can penetrate through the lower shell 212.

In some embodiments, as shown in fig. 7 and 10, a connecting frame 24 is disposed in the installation space, the connecting frame 24 includes an annular connecting portion 24a, the annular connecting portion 24a surrounds the outer periphery of the annular lampshade 213, and the annular connecting portion 24a and the annular lampshade 213 are spaced apart from each other to form an annular groove, and the first light bar 221 is disposed in the annular groove, so that when the first light bar 221 emits light, the light penetrates through the annular lampshade 213 to form an annular lighting effect.

Referring to fig. 7, the light homogenizing member 23 is disposed in the annular groove, and the light homogenizing member 23 is located on the light emitting side of the first light bar 221, so that the color temperature of the light emitted from the first light bar 221 can be changed by using the light homogenizing member 23, and even if the light emitted from the LED lamp beads adopted by the first light bar 221 is a cool color, for example, the first light bar 221 emits white light, under the adjustment of the light homogenizing member 23, the light can be adaptively changed into a softer warm color.

For example, when the light uniformizing member 23 is yellow, the light emitted by the first light bar 221 will transmit through the light uniformizing member 23 and be shifted to yellow, and when the light uniformizing member 23 is blue, the light emitted by the first light bar 221 will transmit through the light uniformizing member 23 and be shifted to blue. In this embodiment, different color temperatures can be obtained by replacing the light uniforming members 23 of different colors. In the above embodiment, the light uniformizing element 23 may be a sheet-shaped or plate-shaped light-transmitting body, which is bent and connected end to form an annular structure, so as to adapt to the extending direction of the first light bar 221, and thus the annular light effect emitted by the first light bar 221 can reach the desired color temperature under the adjustment of the light uniformizing element 23. In addition, even piece 23's setting makes light effect even, can not appear local bright spot and produce the graininess, then promotes the whole luminous effect of desk lamp.

It should be noted that, since the light homogenizing member 23 can satisfy the requirement of light transmission and has a certain color, a good color temperature adjusting effect can be achieved for the transmitted light, and therefore, even if the light emitted by the first light bar 221 is white light, a warm light source with a softer color temperature can be formed under the adjustment of the light homogenizing member 23. The lamp beads on the first lamp strip 221 can be LED lamp beads, and the first lamp strip 221 can be conveniently and quickly processed in a patch packaging manner in the structural form.

In other embodiments, the first light bar 221 may also be made of other light emitting bodies such as fluorescent light beads, and the structural form of the first light bar 221 is not limited herein, as long as the first light bar is adaptively arranged around the periphery of the light outlet 20a to generate an annular light effect.

In some embodiments, the cross-section of the connecting frame 24 is T-shaped, so that the annular connecting portion 24a can be formed to meet the installation requirement of the first light bar 221, and the annular edge of the connecting frame 24 can be stably connected to the upper shell 211 or the lower shell 212.

It should be noted that, in some embodiments, the annular lampshade 213 and the lower shell 212 are integrally formed and made of a light-transmitting material, which can meet the light-transmitting requirement of the first light bar 221 and the second light bar 222, and meanwhile, the annular lampshade 213 and the lower shell 212 are integrated, which can improve the processing efficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. A desk lamp, comprising:

a support bar;

the lamp panel comprises a housing and a light source assembly, the housing encloses an installation space, and the light source assembly is arranged in the installation space;

the lamp panel is connected with the support rod through the hinge assembly;

wherein, the clamshell has relative first surface and second surface, be formed with the light-emitting window on the clamshell, the light-emitting window runs through the first surface with the second surface, the light source subassembly includes first lamp strip and second lamp strip, first lamp strip is followed all sides of light-emitting window set up, with in light-emitting window department sends annular light, the second lamp strip is followed the length direction of lamp plate arrange in installation space.

2. The desk lamp of claim 1, wherein said hinge assembly comprises a rotating rod, a rotating ball and a ball bushing, one end of the rotating rod is connected with the lamp panel, the other end of the rotating rod is connected with the rotating ball, the rotating ball is rotatably arranged on the ball shaft sleeve and is provided with a wire passing hole, the wire passing hole is used for a lead wire electrically connected with the light source component to pass through, the rotating rod is in a hollow tubular shape, and can communicate the installation space with the thread passing hole, a gap is formed between the side wall of the rotating ball at the side provided with the thread passing hole and the side wall of the ball shaft sleeve, so that the wire passing hole is communicated with the inner cavity of the ball shaft sleeve through the gap, one end of the ball shaft sleeve far away from the lamp panel is connected with the support rod, the support rod is provided with a tube cavity, and the tube cavity of the support rod is communicated with the inner cavity of the ball shaft sleeve.

3. The desk lamp as claimed in claim 2, wherein the ball bushing is connected with the support rod by a screw thread, or the ball bushing is inserted into the support rod, or the ball bushing is connected with the support rod by a connecting bushing.

4. The desk lamp as claimed in claim 2, wherein a damping member and an elastic member are disposed in the ball bushing, and the elastic member is used for elastically abutting the damping member against the rotating ball, so that the damping member can frictionally position the rotating ball and lock the rotating position of the lamp panel relative to the support rod.

5. The desk lamp as claimed in claim 4, wherein the surface of the damping member abutting the rotating ball is a curved surface having a curvature substantially equal to a curvature of the surface of the rotating ball.

6. The desk lamp as claimed in claim 4, wherein the elastic member comprises a spring, a washer is disposed on a side of the damping member facing away from the rotating ball, and the spring is elastically abutted between the washer and the support rod.

7. The desk lamp as claimed in claim 6, wherein the damping member is provided with a wire passing groove communicated with the gap, and the wire can extend into the wire passing groove along the gap and sequentially pass through the washer and the spring to enter the tube cavity.

8. The desk lamp as claimed in claim 1, wherein the housing comprises an upper shell and a lower shell, the upper shell and the lower shell are connected together to enclose the installation space, one of the upper shell and the lower shell is provided with a ring-shaped lampshade, the other one of the upper shell and the lower shell is provided with a through hole, and the edge of the through hole is abutted with the edge of the ring-shaped lampshade to form the light outlet.

9. The desk lamp as claimed in claim 8, wherein a connecting frame is disposed in the mounting space, the connecting frame includes an annular connecting portion, the annular connecting portion is disposed around the outer circumference of the annular lampshade, the annular connecting portion and the annular lampshade are spaced apart from each other to form an annular groove, and the first lamp strip is disposed in the annular groove.

10. The desk lamp as claimed in claim 9, wherein a light homogenizing member is disposed in the annular groove, and the light homogenizing member is disposed on a light emitting side of the first light bar.

11. The desk lamp as claimed in any one of claims 1 to 10, wherein the light outlet is located at an end of the lamp panel, and the first light bar and the second light bar are respectively located at two sides of a connecting position of the support bar and the lamp panel.

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