CN114517899A

CN114517899A - Desk lamp

Info

Publication number: CN114517899A
Application number: CN202011312966.0A
Authority: CN
Inventors: 沈迪根; 温晓良
Original assignee: Leedarson Lighting Co Ltd
Current assignee: Leedarson Lighting Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2022-05-20

Abstract

The invention belongs to the technical field of lamps, and particularly relates to a desk lamp. The desk lamp comprises a lamp holder, a lamp post and a lamp holder, wherein the lamp post is installed on the lamp holder and used for supporting the lamp holder, the desk lamp further comprises a switching assembly connected with the lamp post and the lamp holder, the switching assembly comprises a switching head and a connecting piece, the switching head is installed at one end, far away from the lamp holder, of the lamp post and is provided with a switching hole, the connecting piece is installed on the lamp holder and is provided with a first connecting end used for connecting the lamp holder and the switching head, and the first connecting end is adaptive to the switching hole, is inserted into the switching hole and can rotate by 360 degrees around the axis of the switching hole. Therefore, the lamp holder is rotatably connected with the adapter through the connecting piece, so that the lamp holder can rotate in the whole space dimension, the lighting area of the lamp holder can be adjusted in the whole space dimension, the area below the lamp holder can be lighted, the area beside and above the lamp body can be lighted, the effective lighting space of the lamp holder is effectively expanded, and the practicability of the desk lamp is further improved.

Description

Desk lamp

Technical Field

The invention belongs to the technical field of lamps, and particularly relates to a desk lamp.

Background

The desk lamp is a mobile lighting lamp which is used more in daily life and can be moved to different environments to provide lighting according to needs. The desk lamp comprises a lamp holder, a lamp post and a lamp holder, wherein a lighting assembly is arranged in the lamp holder to provide lighting through emergent light rays, and the lamp post is connected with the lamp holder and used for supporting the lamp holder to enable the lamp holder to be suspended in a lighting environment.

In the prior art, in order to conveniently accomodate, the lamp holder of desk lamp is often made into folded cascade's lamp holder, and the lamp holder is pivoted to the lamp pole with the lamp pole pin joint promptly and can be relative the lamp pole pivot to coincide with the lamp pole to folding the lamp holder to the coincide in the lamp pole when need not using the desk lamp to throw light on, the space that the lamp holder took when reducing the desk lamp and idle, pivot the lamp holder to become certain angle with the lamp pole when using the desk lamp. So, because lamp holder and lamp pole pin joint, the lamp holder with can only use the pin joint axle as the pivot, along the relative lamp pole upset of certain direction, and can't realize the rotation on the whole space dimension to can't realize carrying out illumination area's adjustment on whole space dimension, illumination area is limited.

Disclosure of Invention

The embodiment of the invention aims to provide a desk lamp to solve the technical problem that in the prior art, the lamp cap of the desk lamp cannot adjust the illumination area in the whole space dimension, so that the illumination area is limited.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a desk lamp, which comprises a lamp holder, lamp pole and lamp holder, the lamp pole is installed on the lamp stand and is used for supporting the lamp holder, desk lamp is still including the switching subassembly of connecting lamp pole and lamp holder, the switching subassembly includes adapter and connecting piece, the adapter is installed in the one end that the lamp pole was kept away from the lamp stand, and be provided with the switching hole on the adapter, the connecting piece is installed on the lamp holder and is had the first connecting end that is used for linking to each other lamp holder and adapter, first connecting end adaptation is pegged graft in the switching hole and can use the hole axis in switching hole as 360 rotations of axle.

In some embodiments, the connection member further has a second connection end opposite to the first connection end and connected to the lamp cap, a first boss is protruded from a position of the connection member between the first connection end and the second connection end, the adapter assembly further includes an anti-rotation gasket sleeved on the first connection end, and the first boss is located between the connection member and the lamp cap and is matched with the adapter and the lamp cap to clamp the anti-rotation gasket. Thus, when the connecting piece is rotated

In some embodiments, the anti-rotation spacer is a resilient sheet.

In some embodiments, the adapter assembly further comprises a connection nut disposed in the connection adapter hole, an external thread adapted to the internal thread of the connection nut is disposed on an outer wall surface of the first connection end, and the first connection end is screwed to the connection nut.

In some embodiments, a plurality of annular clamping protrusions extend along the hole axis of the transfer hole on the outer wall surface of the first connecting end of the connecting piece, a plurality of annular clamping grooves are correspondingly arranged at positions of the inner wall surface of the transfer hole corresponding to the clamping protrusions, the first connecting end is inserted into the transfer hole, and the clamping protrusions are clamped in the clamping grooves in a one-to-one correspondence manner.

In some embodiments, the lamp cap is provided with an insertion hole, the second connection end of the connection member can be inserted into the insertion hole, and the lamp cap is inserted into the insertion hole through the connection member so as to be detachably connected with the connection member.

In some embodiments, the desk lamp further includes a male terminal and a female terminal for electrically connecting the lamp holder and the lamp socket, the male terminal is embedded in the connecting member, a female terminal fixing member is disposed at a position where the lamp holder is connected to the adapter, the female terminal is embedded in the female terminal fixing member and faces the male terminal, the insertion hole is formed in the female terminal fixing member, and the male terminal is inserted into the female terminal when the second connection of the connecting member is inserted into the insertion hole.

In some embodiments, the second connecting end of the connecting piece is provided with a first embedded groove, the male terminal is embedded in the first embedded groove, and the outer periphery of the first embedded groove is provided with an inserting arm which can be inserted into the inserting hole in an adaptive manner; the position that female terminal mounting is located the spliced eye is provided with the second and inlays the dress groove, and female terminal inlays and locates in the second inlays the dress groove, forms the grafting clearance that supplies grafting arm adaptation grafting between the cell wall of second inlay dress groove and the pore wall of spliced eye.

In some embodiments, a second boss is further convexly arranged at a position between the first boss and the second connecting end of the connecting piece, the first embedded groove is arranged in the middle of the second boss, the female terminal fixing piece is provided with an open end into which the second boss can be inserted in an adaptive manner, a step portion which is matched with and abuts against the second boss is arranged in the open end, and the inserting hole is arranged in the middle of the step portion.

In some embodiments, the adapter has a first connecting portion and a second connecting portion that are disposed opposite to each other, the first connecting portion and the second connecting portion are both provided with an adapter hole, the desk lamp includes two lamp caps with the same structure, and the two lamp caps are connected to the first connecting portion and the second connecting portion through an adapter assembly respectively.

One or more technical schemes in the desk lamp provided by the invention at least have one of the following technical effects: the lamp holder is rotatably connected with the adapter through the connecting piece, so that the lamp holder can rotate in the whole space dimension, the lighting area of the lamp holder can be adjusted in the whole space dimension, the area below the lamp holder can be illuminated, the area beside and above the lamp body can also be illuminated, the effective lighting space of the lamp holder is effectively expanded, and further the practicability of the desk lamp is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a desk lamp according to an embodiment of the present invention;

FIG. 2 is a detailed exploded view of the desk lamp shown in FIG. 1;

FIG. 3 is an exploded view of the lamp head and adapter assembly of the desk lamp shown in FIG. 1;

FIG. 4 is a sectional view taken along line A-A of FIG. 1;

FIG. 5 is a schematic view of a connecting member of the adapter assembly of the desk lamp shown in FIG. 1;

fig. 6 is a schematic structural view of the female terminal fixing member of the desk lamp shown in fig. 1.

Wherein, in the figures, the respective reference numerals:

10-a lamp holder; 20-a light pole; 21-a first rod; 22-a second rod; 30-a lamp cap; 31-a plug hole; 32-female terminal fixture; 321-a second embedding groove; 322-a plug gap; 323-positioning ribs; 324-a connection post receptacle; 325-open end; 326-a step portion; 33-a housing; 331-open end; 332-counter bore; 40-a switching assembly; 41-adapter; 411-a transfer port; 412-a coupling nut; 413-a switching fixture; 4131-stop boss; 414-a first connection; 415-a second connection; 42-a connector; 421-a first connection end; 4211-through groove; 422-a second connection end; 423-first embedding groove; 424-socket arm; 4241-guiding bevel; 425-avoiding the gap; 426-connecting column; 4261-threaded hole; 427-a first boss; 428-a second boss; 43-anti-rotation gasket; 44-a fastener; 50-male terminal; 60-female terminal.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to fig. 1 to 6 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1 to 6, an embodiment of the invention provides a desk lamp. Specifically, as shown in fig. 1 and fig. 2, the lamp includes a lamp socket 10, a lamp post 20 and a lamp cap 30, wherein the lamp post 20 is mounted on the lamp socket 10 and is used for supporting the lamp cap 30, wherein the lamp post 20 may be, but not limited to, pivotally connected to the lamp socket 10, so that the lamp post 20 can be folded to coincide with the lamp socket 10, the lamp post 20 may be, but not limited to, using a segmented lamp post 20 having a rotational joint, for example, the lamp post 20 may be, but not limited to, including a first rod 21 and a second rod 22, one end of the first rod 21 is pivotally connected to the lamp socket 10, one end of the second rod 22 is pivotally connected to the other end of the first rod 21, and the lamp cap 30 is mounted to the other end of the second rod 22, so that, when being stored, the second rod 22 of the lamp post 20 can be folded to overlap with the first rod 21, thereby reducing the volume of the lamp post 20 and reducing the space occupied by the lamp post 20 when being stored and packaged. Further, the lamp head 30 may, but not limited to, include the outer shell 33, and set up and the light source assembly, the heat dissipation assembly, the diffusion assembly and the like in the outer shell 33, the power cord electric connection that lays in the light source assembly and the lamp stand 10 and the lamp pole 20 to can be lighted by the circular telegram and make the lamp head 30 send light, in this embodiment, the structure of the lamp head 30 may adopt the existing lamp head 30 structure on the market, and the specific structure thereof is not described herein.

Further, as shown in fig. 2 to 4, in this embodiment, the table lamp further includes a switching assembly 40 connecting the lamp post 20 and the lamp head 30, the switching assembly 40 includes an adapter 41 and a connector 42, the adapter 41 is installed at an end of the lamp post 20 away from the lamp socket 10, the adapter 41 is provided with a switching hole 411, the connector 42 is installed on the lamp head 30 and has a first connection end 421 for connecting the lamp head 30 and the adapter 41, and the first connection end 421 is inserted into the switching hole 411 in a matching manner and can rotate by 360 ° around a hole axis of the switching hole 411.

According to the desk lamp provided by the embodiment of the invention, the adapter 41 is arranged at one end of the lamp pole 20, the adapter 411 is arranged on the adapter 41, the connecting piece 42 is arranged on the lamp holder 30, the first connecting end 421 of the adapter 41 can be inserted into the adapter 411, the adapter 41 can rotate in the adapter 411 for 360 degrees by taking the hole axis of the adapter 411 as an axis, and the lamp holder 30 is driven to rotate synchronously, so that the lamp holder 30 is rotatably connected with the adapter 41 through the connecting piece 42, the lamp holder 30 rotates in the whole spatial dimension, the lighting area of the lamp holder 30 can be adjusted in the whole spatial dimension, the area below the lamp holder 30 can be lighted, the side lamp body and the area above the lamp holder can be lighted, the effective lighting space of the lamp holder 30 can be effectively expanded, and the practicability of the desk lamp provided by the invention is further improved.

In another embodiment of the present invention, as shown in fig. 3, 4 and 5, the connecting member 42 further has a second connecting end 422 opposite to the first connecting end 421 and connected to the lamp cap 30, the connecting member 42 is provided with a first boss 427 at a position between the first connecting end 421 and the second connecting end 422, the adapter assembly 40 further includes an anti-rotation spacer 43 sleeved on the first connecting end 421, the first boss 427 is located between the connecting member 42 and the lamp cap 30 and cooperates with the adapter 41 and the lamp cap 30 to clamp the anti-rotation spacer 43, so that the anti-rotation spacer 43 is always clamped by the first boss 427 and the adapter 41 no matter how the connecting member 42 rotates relative to the adapter 41, and a certain friction force is always present between the anti-rotation spacer 43 and the first boss 427 and the adapter 41. Thus, when the adaptor is rotated, the first bosses 427 can maintain the cap 30 at a certain fixed rotation angle by means of friction between the first bosses 427 and the rotation preventing washers 43, without rotation and failure of angle adjustment.

In another embodiment of the present invention, as shown in fig. 4, the anti-rotation spacer 43 is preferably an elastic plate, so that the anti-rotation spacer 43 is pressed by the first boss 427 and the adapter 41, and the friction force generated thereby is larger, and the anti-rotation capability is stronger. In some embodiments, the anti-rotation pad 43 may be a rubber pad or the like.

In another embodiment of the present invention, as shown in fig. 3 and 4, the adapter assembly 40 further includes a connection nut 412 disposed in the connection adapter hole 411, an outer wall surface of the first connection end 421 is provided with an external thread adapted to the internal thread of the connection nut 412, and the first connection end 421 is screwed to the connection nut 412, so that the connection member 42 is screwed to the connection nut 412 through the first connection end 421, that is, the connection member 42 is screwed to the adapter 41, which can improve the connection stability and reliability between the connection member 42 and the adapter 41, and ensure that the connection member 42 can rotate relative to the adapter 41360 °.

Specifically, in this embodiment, as shown in fig. 3 and fig. 4, the adapter 41 is a cylindrical member with an open end, and the adapter fixing member 413 is sleeved inside the adapter 41, the adapting hole 411 is opened on the adapter fixing member 413 and penetrates through the adapter fixing member 413 along the insertion direction of the first connection end 421, and a stop boss 4131 is protruded at a position of a hole wall of the inserting hole 31 close to one end of the lamp holder 30, so that the connection nut 412 can be put into the adapting hole 411 from an end of the adapting hole 411 away from the wind head and abut against the stop boss 4131 to prevent the connection nut from being pulled by the first connection end 421 and being separated from the adapter hole 411 after being connected with the first connection end 421.

In another embodiment of the present invention, as an alternative to the above embodiment, a plurality of annular locking protrusions are arranged on an outer wall surface of the first connection end 421 of the connection member 42 in an extending manner along a hole axis of the adapting hole 411, a plurality of annular locking grooves are correspondingly arranged on an inner wall surface of the adapting hole 411 at positions corresponding to the locking protrusions, the first connection end 421 is inserted into the adapting hole 411, and the locking protrusions are locked in the locking grooves in a one-to-one correspondence manner. In this way, when the adapter fixture 413 and the coupling nut 412 are not provided in the adapter 41, it is also possible to stably connect the connector 42 and the adapter 41, and to ensure that the adapter can rotate 360 °.

Specifically, in the present embodiment, the first connecting element 42 of the connecting element 42 is preferably an elastic connecting element 42, or the locking protrusion disposed thereon is preferably an elastic locking protrusion, so that the first connecting end 421 can be inserted into the inserting hole 31, and the locking protrusion can be elastically locked into the corresponding slot and can rotate in the slot.

In another embodiment of the present invention, as shown in fig. 2 to 4, the lamp cap 30 is provided with an insertion hole 31, the second connection end 422 of the connection member 42 can be inserted into the insertion hole 31, and the lamp cap 30 is inserted into the insertion hole 31 through the connection member 42 so as to be detachably connected to the connection member 42. Therefore, the lamp cap 30 is connected with the adapter 41 on the lamp post 20 through the connecting piece 42 in a plugging manner, and when the lamp cap is used, the first connecting end 421 of the connecting piece 42 is inserted into the plugging hole 31 of the lamp cap 30 to complete the assembly of the lamp cap 30 and the lamp post 20, so that the lamp cap can be normally used, the assembly is convenient, and the operation is simple. On the contrary, when the desk lamp needs to be packaged, the lamp holder 30 is pulled out of the connecting piece 42, and then the lamp holder 30 can be packaged and transported independently, so that the desk lamp can be packaged with the fragile lamp holder 30 and the lamp post 20, namely the lamp holder 10 and the like, in a separated mode, the lamp holder 30 with high packaging safety requirements can be better protected by using less packaging materials, the lamp holder 10 and the lamp post 20 with relatively low packaging safety requirements can be packaged by using safety regulations of corresponding levels, the situation that redundancy is caused by high requirements of the lamp holder 30 on the packaging of the lamp holder 10 and the lamp post 20 can be avoided, the packaging cost can be effectively reduced, the whole volume of the packaging is reduced, and the transportation cost is reduced.

In another embodiment of the present invention, as shown in fig. 2 to 4, the desk lamp of the present embodiment further includes a male terminal 50 and a female terminal 60 electrically connected to the lamp holder 30 and the lamp socket 10 in a plug-in manner, wherein the male terminal 50 and the female terminal 60 may be, but not limited to, DC terminals. Further, the male terminal 50 is embedded in the upper portion or the interior of the connecting member 42, the female terminal fixing member 32 is disposed at a position where the lamp cap 30 is connected to the adapter 41, the female terminal 60 is embedded in the upper portion or the interior of the female terminal fixing member 32 and is opposite to the male terminal 50, and the insertion hole 31 is formed in the female terminal fixing member 32, so that the lamp cap 30 is inserted into the connecting member 42 through the female terminal fixing member 32, when the second connecting end 422 of the connecting member 42 is inserted into the insertion hole 31, the male terminal 50 and the female terminal 60 are inserted into each other in a synchronous and corresponding manner, so that the lamp cap 30 is electrically connected to the lamp post 20, and the lamp cap 30 can be normally powered on for use. In addition, in this embodiment, the connection position of the male terminal 50 and the female terminal 60, which is electrically connected between the lamp holder 30 and the lamp post 20, and the rotation connection position between the lamp holder 30 and the adaptor are separately arranged, and the connection position and the rotation connection position do not interfere with each other, so that the rotation of the lamp holder 30 is prevented from affecting the connection stability of the male terminal 50 and the female terminal 60, meanwhile, the male terminal 50 and the female terminal 60 are prevented from being worn when the lamp holder 30 rotates, and the power-on stability of the lamp holder 30 is higher.

In another embodiment of the present invention, as shown in fig. 3, 4 and 5, the second connection end 422 of the connection member 42 is provided with a first embedded groove 423, and the male terminal 50 is embedded in the first embedded groove 423, specifically, in this embodiment, the middle of the first connection end 421 of the connection member 42 is provided with a through groove 4211 penetrating through the first embedded groove 423, one end of the male terminal 50 is located in the through groove 4211, and the other end of the male terminal penetrates through the groove bottom wall of the first embedded groove 423 and protrudes into the first embedded groove 423 to be fittingly inserted into the female terminal 60.

Further, as shown in fig. 3, 4 and 5, the outer periphery of the first insertion groove 423 is provided with an insertion arm 424 capable of being inserted into the insertion hole 31 in an adaptive manner, the female terminal fixing member 32 is provided with a second insertion groove 321 at a position located in the insertion hole 31, the female terminal 60 is inserted into the second insertion groove 321, and an insertion gap 322 for the insertion arm 424 to be inserted in an adaptive manner is formed between a groove wall of the second insertion groove 321 and a hole wall of the insertion hole 31. When the lamp head 30 and the connecting member 42 are connected by plugging, the plugging arm 424 on the connecting member 42 is correspondingly inserted into the plugging gap 322 on the female terminal fixing member 32, so that the plugging connection structure is simple, and the operation of connection and detachment is convenient.

Further, as shown in fig. 5, in the present embodiment, the outer periphery of the end of the plugging arm 424 facing the female terminal holder 32 is provided with a guiding inclined surface 4241, and the guiding inclined surface 4241 is inclined along the insertion direction of the plugging arm 424 to be in guiding fit with the hole wall of the plugging hole 31, so as to facilitate the insertion of the plugging arm 424 into the plugging gap 322.

In another embodiment of the present invention, as shown in fig. 4, 5 and 6, a plurality of positioning ribs 323 are arranged at intervals between the wall of the second embedding groove 321 and the wall of the inserting hole 31, an avoiding gap 425 is arranged at a position of the inserting arm 424 corresponding to each positioning rib 323, the inserting arm 424 is inserted into the inserting gap 322, and each positioning rib 323 is respectively inserted into the corresponding avoiding gap 425. In this way, the positioning rib 323 is provided to support the second fitting groove 321 provided in the insertion hole 31, thereby ensuring the molding stability of the second fitting groove 321 and the mounting stability of the female terminal 60.

In another embodiment of the present invention, as shown in fig. 4, 5 and 6, a second boss 428 is further protruded from the connecting element 42 at a position between the first boss 427 and the second connecting end 422, the first embedded groove 423 is disposed in a middle portion of the second boss 428, the female terminal fixing element 32 has an open end 325 into which the second boss 428 can be fittingly inserted, a step 326 adapted to abut against the second boss 428 is disposed in the open end 325, and the plug hole 31 is disposed in a middle portion of the step 326. The step portion 326 and the second boss 428 are provided to cooperate to limit the insertion depth of the second connecting end 422 in the insertion hole 31, so as to prevent the second connecting end 422 from being excessively inserted into the insertion hole 31 and affecting the normal electrical connection between the male terminal 50 and the female terminal 60.

In another embodiment of the present invention, as shown in fig. 4, 5 and 6, the second connection end 422 of the connection member 42 is further provided with a connection column 426, a connection column insertion hole 324 is provided at a position of the female terminal fixture 32 corresponding to the connection column 426, and when the second connection end 422 is inserted into the insertion hole 31, the connection column 426 is inserted into the connection column insertion hole 324 and can be tightly connected with the female terminal fixture 32 through the fastener 44. Therefore, the connection post 426 is disposed on the connection member 42 and is connected to the connection post insertion hole 324 of the female terminal fixing member 32 in an adaptive manner, so as to further improve the female terminal fixing member 32, i.e., the connection reliability and stability between the lamp cap 30 and the connection member 42, and prevent the lamp cap 30 from being loosened.

Further, in this embodiment, as shown in fig. 3 to 5, the lamp holder 30 further includes a housing 33 with an opening at one end, the female terminal fixing member 32 is sleeved at the opening end 331 of the housing 33, the connecting post 426 is provided with an aperture facing the housing 33 and provided with a threaded hole 4261, the housing 33 is provided with a counter bore 332 at a position corresponding to the threaded hole, the fastener 44 is preferably a fastening screw or bolt, the threaded end of the screw or bolt passes through the through hole and then is screwed into the threaded hole 4261, and the nut is accommodated in the counter bore 332, so that the connecting post 426, the female terminal fixing member and the housing 33 of the lamp holder 30 are fastened together, and the connection stability of the connecting member 42 and the lamp holder 30 is improved.

In another embodiment of the present invention, as shown in fig. 1 to 3, the adapter 41 has a first connection portion 414 and a second connection portion 415 that are oppositely disposed, a switch hole 411 is disposed on each of the first connection portion 414 and the second connection portion 415, the desk lamp includes two lamp caps 30 with the same structure, and the two lamp caps 30 are respectively connected to the first connection portion 414 and the second connection portion 415 through the switch assembly 40. Thus, the two lamp caps 30 are connected to the two opposite sides of the adapter 41, so that the effective illumination range of the table lamp can be enlarged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a desk lamp, includes lamp stand, lamp pole and lamp holder, the lamp pole install in be used for on the lamp stand to support the lamp holder, its characterized in that, desk lamp is still including connecting the lamp pole with the switching subassembly of lamp holder, the switching subassembly includes adapter and connecting piece, the adapter install in the lamp pole is kept away from the one end of lamp stand, just be provided with the switching hole on the switching head, the connecting piece install in on the lamp pole and have be used for with the lamp holder with the first connection end that the adapter links to each other, first connection end adaptation peg graft in the switching hole and can with the hole axis in switching hole is 360 rotations of axle.

2. The desk lamp of claim 1, wherein: the adapter assembly further comprises an anti-rotation gasket sleeved on the first connecting end, and the first boss is located between the connecting piece and the lamp holder and matched with the adapter and the lamp holder to clamp the anti-rotation gasket tightly.

3. The desk lamp of claim 2, wherein: the anti-rotation gasket is an elastic sheet.

4. The desk lamp of claim 2, wherein: the switching assembly further comprises a connecting nut which is connected with the switching hole, a male thread which is matched with the female thread of the connecting nut is arranged on the outer wall surface of the first connecting end, and the first connecting end is in threaded connection with the connecting nut.

5. The desk lamp of claim 2, wherein: the outer wall surface of the first connecting end of the connecting piece is provided with a plurality of annular clamping protrusions extending along the axis of the transfer hole, a plurality of annular clamping grooves are correspondingly arranged on the inner wall surface of the transfer hole corresponding to the positions of the clamping protrusions, the first connecting end is inserted into the transfer hole, and the clamping protrusions are clamped in the clamping grooves in a one-to-one correspondence mode.

6. The desk lamp of any one of claims 2-5, wherein: the lamp holder is provided with an inserting hole, the second connecting end of the connecting piece can be inserted into the inserting hole, and the lamp holder is inserted into the inserting hole through the connecting piece so as to be detachably connected with the connecting piece.

7. The desk lamp of claim 6, wherein: the desk lamp is characterized in that the desk lamp further comprises a male terminal and a female terminal, the male terminal is embedded in the connecting piece, the lamp holder is provided with a female terminal fixing piece at the position where the adapter is connected, the female terminal is embedded in the female terminal fixing piece and is right opposite to the male terminal, the inserting hole is formed in the female terminal fixing piece, and the second connecting portion of the connecting piece is connected and inserted in the inserting hole, and the male terminal is connected with the female terminal in an inserting mode.

8. The desk lamp of claim 7, wherein: the second connecting end of the connecting piece is provided with a first embedded groove, the male terminal is embedded in the first embedded groove, and the outer periphery of the first embedded groove is provided with an inserting arm which can be inserted into the inserting hole in an adaptive manner; the female terminal fixing part is provided with a second embedded groove at the position in the inserting hole, the female terminal is embedded in the second embedded groove, and an inserting gap for the inserting arm to be inserted in an adaptive mode is formed between the groove wall of the second embedded groove and the hole wall of the inserting hole.

9. The desk lamp of claim 8, wherein: the connecting piece is located the position between first boss and the second link still protruding second boss that is equipped with, first inlay groove set up in the middle part of second boss, female terminal mounting has and supplies the second boss adaptation male opening end, be provided with the adaptation in the opening end and offset the step portion of second boss, the spliced eye set up in the middle part of step portion.

10. The desk lamp according to any one of claims 1 to 5, wherein: the adapter has relative first connecting portion and the second connecting portion that sets up, first connecting portion with all be provided with on the second connecting portion the switching hole, the desk lamp includes two that the structure is the same the lamp holder, two the lamp holder passes through respectively the switching subassembly connect in first connecting portion with the second connecting portion.