CN212961273U - Desk lamp capable of adjusting illumination direction - Google Patents

Abstract

The utility model provides a desk lamp capable of adjusting the illumination direction, which comprises a lamp body, a base and a support column; wherein, the light source component comprises a lamp body for illumination; the base is used for the supporting part, and the lamp body is located the base top, and the lamp body passes through the support column and is connected with the base top and uses the top surface place plane of base as first plane, is equipped with the first rotating groove of top end open-ended on the base. The first rotating assembly is rotatably connected with the base through the first rotating groove, the plane of the rotating range of the first rotating assembly is a second plane, and the second plane is parallel to the first plane. The utility model provides a first rotation subassembly drive support column drives lamp body horizontal rotation to make the illumination direction of lamp body prolong horizontal adjustable, make the desk lamp can adjust and to shine bigger scope, promoted the practicality of desk lamp structure, realize the multi-angle and rotate.

Description

Desk lamp capable of adjusting illumination direction

Technical Field

The utility model relates to the field of lamps and lanterns, in particular to desk lamp of adjustable illumination direction.

Background

The desk lamp is an electric lamp with a base and placed on a desk, and is one of essential electrical appliances in the household life. The desk lamp mainly has the lighting function, and is convenient for reading, learning and working; in daily life, the desk lamp is popular among people due to the small size and convenience.

When people use the light of the desk lamp to read books, study and other activities, the existing desk lamp is still, the illumination angle cannot be adjusted, and the glasses of a user are easy to cause fatigue after long-time use because the light environment is fixed and unchanged. Therefore, it is desirable to provide a desk lamp with adjustable illumination direction to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a desk lamp of adjustable illumination direction, it supports the lamp body through base cooperation support column, and first rotation subassembly drives the support column and rotates along the horizontal direction to solve the problem that desk lamp illumination angle among the prior art can not be adjusted.

In order to solve the technical problem, the utility model adopts the technical scheme that: a desk lamp with adjustable illumination direction, comprising:

the base is used for supporting a component, the interior of the base is of a hollow structure, a first rotating groove is formed in the bottom end of the interior of the base, and a first through hole in sleeve connection with the first rotating assembly is formed in the first rotating groove;

the lamp body is arranged above the base and used for lighting; and

the support column is used for connecting the base and the lamp body;

one end of the supporting column is rotatably connected with the base through a first rotating assembly, the first rotating assembly is used for changing the direction of the supporting column, the straight line where the first rotating assembly is located is perpendicular to the plane where the base is located, the supporting column rotates around the straight line where the first rotating assembly is located, and the illumination direction of the lamp body can be adjusted; the first rotating assembly includes:

the first rotating seat is arranged in the base and is rotationally connected with the first rotating groove; and

the positioning seat is rotatably connected with the base, the center of the positioning seat penetrates through the first through hole and is connected with the first rotating seat, and the top end of the positioning seat is connected with the supporting column.

The utility model discloses in, the positioning seat includes: the positioning seat comprises a positioning plate which is rotatably connected with the top surface of the base, and the top end of the base is provided with an arc-shaped adjusting groove;

the bottom end of the positioning plate is provided with an adjusting bulge connected with the arc-shaped adjusting groove, and the adjusting bulge is in sliding connection with the arc-shaped adjusting groove, so that the rotating range of the support column along the second plane is limited.

The utility model discloses in, the positioning seat still includes:

the top end of the first rotating shaft is connected with the center of the bottom end of the positioning plate, and the bottom end of the first rotating shaft penetrates through the first through hole and is connected with the first rotating seat; and

the first positioning ring is arranged at the bottom end of the positioning plate, the first rotating shaft is positioned at the center of the first positioning ring, and the first positioning ring is used for limiting the distance between the positioning plate and the base;

the center of the first rotating seat is vertically provided with an inserting sleeve, and the first rotating shaft is inserted into the inserting sleeve.

The second retaining ring includes:

the spacing part is connected with the bottom end of the positioning plate, extends along the bottom surface of the positioning plate and is used for reducing the contact surface of the positioning plate and the top surface of the base; and

the top end of the second rotating portion is connected with the bottom end of the spacing portion and vertically extends downwards, the bottom end of the second rotating portion is connected with the inserting sleeve in an inserting mode, and the outer ring of the second rotating portion is connected with the first through hole in a rotating mode.

The utility model discloses in, first rotation seat includes:

a first rotating part which is rotatably connected with the first rotating groove; and

the first limiting part is connected with the top end of the first rotating part, and the cross section of the first limiting part is larger than that of the first through hole, so that the position of the first rotating seat is limited;

a second positioning ring is arranged at the top end in the base, and the second positioning ring is sleeved on the outer ring of the first positioning ring;

the first limiting portion comprises a plurality of elastic pieces, the elastic pieces are arranged in a surrounding mode with the axis of the first rotating shaft as the center, and the elastic pieces are used for elastically extruding the outer ring of the second positioning ring.

In the utility model, a positioning column is arranged at the bottom end of the positioning plate and is arranged between the first rotating shaft and the first positioning ring;

the first limiting part is further provided with a connecting hole, the connecting hole is located corresponding to the positioning column, and the first limiting part is connected with the positioning column through a screw.

The utility model discloses in, the connecting hole with the elastic component is all followed the telescopic center pin of pegging graft is annular array, just the connecting hole with the even spaced distribution of elastic component is in on the first spacing portion.

The utility model discloses in, the elastic component includes:

the elastic arm is arranged at the top end of the first limiting part and used for extruding the bottom end of the second positioning ring, and the elastic arm extends along the bottom surface of the second positioning ring; and

the positioning bulge is connected with one end of the elastic arm and is positioned on the outer ring of the second positioning ring and used for limiting the position of the second positioning ring.

The utility model discloses in, the lamp body pass through the second runner assembly with the support column rotates to be connected, the second runner assembly includes:

the third rotating seat is connected with one end of the supporting column, a third rotating groove is formed in the third rotating seat, the extending direction of the long edge of the third rotating groove is perpendicular to the extending direction of the long edge of the supporting column, a second through hole is formed in one side of the third rotating seat, and the second through hole is communicated with the third rotating groove;

the second rotating block is arranged in the third rotating seat and is rotationally connected with the third rotating groove; and

the fourth rotating seat is arranged on one side of the third rotating seat and is connected with one end of the lamp body, and the fourth rotating seat comprises an inserting shaft connected with the second through hole;

the plug shaft is rotatably connected with the second through hole, one end of the plug shaft is fixedly connected with the second rotating block, and the second rotating block drives the fourth rotating seat to rotate by taking the axis of the plug shaft as the center.

In the utility model, the inside of the inserting sleeve is provided with a clamping bulge, the bottom end of the first rotating shaft is provided with a clamping groove corresponding to the clamping bulge,

the joint is protruding with the joint groove is pegged graft, thereby makes first rotation seat with the locating plate synchronous rotation, thereby promotes the stability of first rotation subassembly structure.

The utility model discloses compare in prior art, its beneficial effect is: the utility model discloses an adjustable illumination direction's desk lamp supports the lamp body through base cooperation support column, and first rotation subassembly drives the positioning seat through first rotation seat and rotates along the horizontal direction, and the control range that has promoted the illumination direction of lamp body has promoted the practicality of desk lamp, realizes multi-angle rotating. In addition, first rotation seat rotates and fixes a position with the base cooperation, and the rotation range of first rotation equipment is injectd in positioning seat and the base cooperation, compact structure, and stability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.

Fig. 1 is a perspective view of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 2 is a cross-sectional view of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 3 is a schematic structural diagram of the first rotating assembly of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 4 is a schematic view of the positioning seat structure of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 5 is a side view of the positioning seat of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 6 is a perspective view of the first rotating base of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 7 is an exploded view of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Fig. 8 is a schematic structural diagram of a second rotating assembly of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Fig. 9 is an exploded view of the second rotating assembly of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Fig. 10 is an enlarged view of a portion of the structure of fig. 8.

Fig. 11 is a schematic structural view of a fourth rotating base according to a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Fig. 12 is a schematic diagram of an internal structure of a third rotating groove of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Fig. 13 is an exploded view of a third rotating base structure of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Fig. 14 is a schematic structural view of a second rotating block of the preferred embodiment of the desk lamp with adjustable illumination direction according to the present invention.

Reference numerals: the light assembly comprises alight body 11, anupper housing 111, a light-transmittingcover 112, a light-emitting assembly 113, abase 12, a firstrotating groove 121, a first throughhole 122, an arc-shaped adjusting groove 123, asecond positioning ring 124, a limitinggroove 125, abottom case 12a, acover case 12b, a supportingcolumn 13, a second rotating seat 132, afirst rotating assembly 14, a first rotatingseat 141, a first rotatingpart 1411, a first limitingpart 1412, anelastic protrusion 14121, a connectinghole 14122, aclamping protrusion 1413, apositioning seat 142, apositioning plate 1421, an adjustingprotrusion 1421a, a first rotatingshaft 1422, aclamping groove 1422a, afirst positioning ring 1423, aspacing part 1423a, a second rotatingpart 1423b, apositioning post 1424, afixing block 1425, a first limiting block 1425a, a second limitingblock 1425b, a second rotating shaft 143, asecond rotating assembly 15, a third rotatingseat 151, a third rotatinggroove 1511, a second limitingprotrusion 1511a, a second through hole, a second rotatingblock 152, afirst positioning protrusion 1521, fourth rotatingseat 153, plug-inshaft 1531,damping positioning piece 154.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.

Referring to fig. 1 and 2, fig. 1 is a perspective view of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, and fig. 2 is a cross-sectional view of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

The utility model provides a desk lamp capable of adjusting the illumination direction, which comprises alamp body 11, abase 12 and asupport column 13; wherein, thelight source assembly 11 includes alamp body 11 for illumination; thebase 12 is used for supporting the component, thelamp body 11 is located above thebase 12, and thelamp body 11 is connected with the top end of the base 12 through the supportingcolumn 13 and uses the plane of the top surface of the base 12 as a first plane, and thebase 12 is provided with a firstrotating groove 121 with an opening at the top end.

The utility model discloses in,first rotation subassembly 14 rotates throughfirst rotation groove 121 andbase 12 to be connected, and the rotation range place plane offirst rotation subassembly 14 is the second plane, and the second plane is parallel with first plane.First rotation component 14drive support column 13drives lamp body 11 horizontal rotation to make the illumination direction oflamp body 11 prolong transversely adjustable, make the desk lamp can adjust and to shine bigger scope, promoted the practicality of desk lamp structure, realize the multi-angle and rotate.

With reference to fig. 3, fig. 3 is a schematic structural diagram of a first rotating assembly of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention. Right the structure of the firstrotating assembly 14 of the present invention is explained:

the firstrotating assembly 14 of the present invention includes a firstrotating base 141 and apositioning base 142. The utility model provides a base 12 is hollow structure, andbase 12 is provided with first through-hole 122 for the position that the top correspondsfirst rotation groove 121. The firstrotating base 141 is disposed in thebase 12, and the first rotatingbase 141 is rotatably connected to the firstrotating groove 121. Thepositioning base 142 is rotatably connected with the cover plate 1552 of thebase 12, and the top end of thepositioning base 142 is connected with the lower end of the supportingcolumn 13.

With reference to fig. 4 and 5, fig. 4 is a schematic view of the positioning seat structure of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, and fig. 5 is a side view of the positioning seat of the preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

Thepositioning seat 142 includes apositioning plate 1421, a firstrotating shaft 1422, asecond positioning ring 1423, and afixing block 1425. Wherein thepositioning plate 1421 is rotatably connected to the top surface of thebase 12; the fixedblock 1425 is arranged on the top end of thepositioning plate 1421 and is connected with the bottom end of the supportingcolumn 13. The bottom end of thepositioning plate 1421 is provided with an adjustingprotrusion 1421a, the adjustingprotrusion 1421a is slidably connected to the arc-shapedadjusting groove 123 on the top surface of thebase 12, so as to define the rotation range of the supportingcolumn 13 along the second plane, and the adjustingprotrusion 1421a can adjust the rotation position of the supportingcolumn 13 along the second plane, thereby improving the stability of the overall structure of the desk lamp.

The utility model provides afirst pivot 1422 top is connected with the center department of locatingplate 1421 bottom surface, and first through-hole 122 is run through tofirst pivot 1422 bottom to be connected withfirst rotation seat 141. Thesecond positioning ring 1423 is disposed at the bottom end of thepositioning plate 1421, and thesecond positioning ring 1423 is sleeved on the outer ring of the firstrotating shaft 1422, the firstrotating shaft 1422 is located at the center of thesecond positioning ring 1423, and thesecond positioning ring 1423 is used to limit the distance between the positioning plate and thebase 12.

The utility model provides afirst rotation seat 141 is the vertical grafting sleeve that is provided with of center department, andfirst pivot 1422 pegs graft with the grafting sleeve to makefirst rotation seat 141 and positioningseat 142 rotate about same axis, promoted the structural stability offirst rotation subassembly 14, and rotate the accurate nature of adjusting.

Further, aclamping protrusion 1413 is arranged inside the inserting sleeve, and aclamping groove 1422a corresponding to theclamping protrusion 1413 is arranged at the bottom end of the firstrotating shaft 1422; the engagingprotrusion 1413 is engaged with the engaginggroove 1422a, so that the first rotatingbase 141 and thepositioning plate 1421 rotate synchronously.

Referring to fig. 6, fig. 6 is a perspective view of a first rotating base of the desk lamp with adjustable illumination direction according to the preferred embodiment of the present invention. The firstrotating base 141 of the present invention includes a firstrotating portion 1411 and a first position-limitingportion 1412. The firstrotating part 1411 is disposed at the bottom end of the first rotatingbase 141 and is rotatably connected with the firstrotating groove 121; the first position-limitingportion 1412 is connected to the top end of the firstrotating portion 1411, and the cross section of the first position-limitingportion 1412 is larger than the cross section of the first throughhole 122, so as to limit the position of the first rotatingbase 141, prevent the first rotatingbase 141 from falling off from the first throughhole 122, and improve the structural stability of the firstrotating assembly 14.

Further, asecond positioning ring 124 is disposed at the top end inside thebase 12, and thesecond positioning ring 124 is sleeved on the outer ring of thesecond positioning ring 1423; the first position-limitingportion 1412 includes a plurality ofelastic members 14121, a plurality ofelastic members 14121 are disposed around the axis of the firstrotating shaft 1422, and anelastic member 14121 is used for elastically pressing the outer ring of thesecond positioning ring 124, so as to fix the position of the firstrotating assembly 14.

In the present invention, theelastic member 14121 includes an elastic arm and a positioning protrusion; the elastic arm is arranged at the top end of the first limiting part and is used for extruding the bottom end of thesecond positioning ring 124, and the elastic arm extends along the bottom surface of thesecond positioning ring 124; the positioning protrusion is connected to one end of the elastic arm, and the positioning protrusion is located at the outer ring of thesecond positioning ring 124 for limiting the position of thesecond positioning ring 124, thereby ensuring the stability of theelastic member 14121 pressing thesecond positioning ring 124 for fixing.

In this embodiment, apositioning column 1424 is disposed at the bottom end of thepositioning plate 1421, and thepositioning column 1424 is disposed between the firstrotating shaft 1422 and thesecond positioning ring 1423. The first position-limitingportion 1412 further has a connectinghole 14122, the connectinghole 14122 is located corresponding to thepositioning post 1424, and the first position-limitingportion 1412 is connected to thepositioning post 1424 by a screw, so that the stability between the first rotatingbase 141 and thepositioning base 142 is improved.

The utility model discloses in, connectinghole 14122 all is annular array along the telescopic center pin of pegging graft withelastic component 14121, and connectinghole 14122 and the even spaced distribution ofelastic component 14121 are onfirst spacing portion 1412.

Thesecond positioning ring 1423 in this embodiment includes aspacing portion 1423a and a secondrotating portion 1423b, which is connected to the bottom end of thepositioning plate 1421 and extends along the bottom surface of thepositioning plate 1421, so as to reduce the contact surface between thepositioning plate 1421 and the top surface of thebase 12, thereby facilitating the rotating operation. The top end of the secondrotating part 1423b is connected to the bottom end of thespacing part 1423a and extends vertically downward, the bottom end of the secondrotating part 1423b is connected to the inserting sleeve, and the secondrotating part 1423b is rotatably connected to the first throughhole 122, so that the stability of the first rotating assembly in the using process is improved.

With reference to fig. 7, the structure of thebase 12 of the present invention is illustrated:

the base 12 in the utility model is a hollow structure, thebase 12 comprises abottom shell 12a for accommodating the battery component and acover shell 12b which is buckled with thebottom shell 12a for sealing; the firstrotating groove 121 is located in thebottom case 12a, and thecover case 12b is provided with a first throughhole 122 at a position corresponding to the firstrotating groove 121.

In this embodiment, the top surface of thebase 12 is further provided with a limitinggroove 125, and the limitinggroove 125 is used to limit the position of thepositioning plate 1421, so as to improve the stability of the connection between the base 12 and thepositioning seat 142.

Right the utility model provides a secondrotating assembly 15 structure explains:

with reference to fig. 8, 9, 10 and 11, wherein fig. 8 is a schematic diagram of a structure of a second rotating assembly of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, fig. 9 is an exploded diagram of a second rotating assembly of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, fig. 10 is an enlarged schematic diagram of a local structure of fig. 8, and fig. 11 is a schematic diagram of a structure of a fourth rotating base of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

In the utility model, the secondrotating assembly 15 comprises a thirdrotating seat 151, a secondrotating block 152 and a fourthrotating seat 153, wherein the thirdrotating seat 151 is connected with one end of thesupport column 13 far away from thebase 12, a thirdrotating groove 1511 is arranged in the thirdrotating seat 151, the extending direction of the long edge of the thirdrotating groove 1511 is vertical to the extending direction of the long edge of thesupport column 13, a second through hole 1532 is arranged on one side of the thirdrotating seat 153, and the second throughhole 1512 is communicated with the thirdrotating groove 1511; the secondrotating block 152 is disposed in the thirdrotating seat 151, and is rotatably connected to the thirdrotating groove 1511; the fourth rotatingbase 153 is disposed at one side of the thirdrotating base 151 and connected to one end of thelamp body 11, and the fourth rotatingbase 153 includes a plug-inshaft 1531 connected to the second throughhole 1512.

The insertingshaft 1531 is rotatably connected to the second throughhole 1512, one end of the insertingshaft 1531 is fixedly connected to the secondrotating block 152, and the secondrotating block 152 drives the fourth rotatingbase 153 to rotate around the axis of the insertingshaft 1531. Therefore, the light emitting surface of thelamp body 11 rotates around the axis of the insertingshaft 1531, the light emitting direction of thelamp body 11 is adjustable along the third plane, and the practicability of the desk lamp is improved.

In this embodiment, a dampingpositioning plate 154 is disposed between the fourthrotating seat 153 and the thirdrotating seat 151, the dampingpositioning plate 154 is used to define the position of the thirdrotating seat 151, and the dampingpositioning plate 154 is an annular structure and is sleeved with the insertingshaft 1531.

With reference to fig. 12, 13 and 14, fig. 12 is a schematic diagram of a third rotating groove structure of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, fig. 13 is an exploded view of a third rotating seat structure of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention, and fig. 14 is a schematic diagram of a second rotating block structure of a preferred embodiment of the desk lamp with adjustable illumination direction of the present invention.

In the utility model, afirst positioning protrusion 1521 is arranged on one side of the secondrotating block 152; be provided with the spacing arch 1511a of second in thesecond rotation groove 1511, the spacing arch 1511a of second is used for injecing the position offirst location arch 1521 to injectlamp body 11 along the planar rotation range of second, thereby avoided the electric wire winding thatlamp body 11 coiling leads to, promote the security that desk lamp subassembly used.

Preferably, the outer side of thefirst positioning protrusion 1521 in this embodiment is an arc-shaped structure, the inner wall of the thirdrotating groove 1511 is provided with a plurality of positioning members for limiting the position of thefirst positioning protrusion 1521, and the plurality of positioning members are distributed in an annular array, so that the stability of the rotational connection between the secondrotating block 152 and the thirdrotating groove 1511 is greatly improved.

The structure of thelamp body 11 in this embodiment will be explained with reference to fig. 13:

thelamp body 11 of the present invention includes a housing and alight emitting assembly 113; the housing is engaged with thetransparent cover 112 through theupper housing 11, and forms a cavity for accommodating thelight emitting element 113, and the light emitting surface of thelight emitting element 113 is opposite to thetransparent cover 112. Wherein, the fourth rotates theseat 153 other end and is connected with light emittingcomponent 113, andcasing 11 rotatesseat 153 top joint with the fourth, andprinting opacity cover 112 rotatesseat 153 bottom joint with the fourth, has promoted the stability thatlamp body 11 and secondrotating component 11 are connected.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims (10)

1. The utility model provides an adjustable illumination direction's desk lamp which characterized in that includes:

the base is used for supporting a component, the interior of the base is of a hollow structure, a first rotating groove is formed in the bottom end of the interior of the base, and a first through hole in sleeve connection with the first rotating assembly is formed in the first rotating groove;

the lamp body is arranged above the base and used for lighting; and

the support column is used for connecting the base and the lamp body;

one end of the supporting column is rotatably connected with the base through a first rotating assembly, the first rotating assembly is used for changing the direction of the supporting column, the straight line where the first rotating assembly is located is perpendicular to the plane where the base is located, the supporting column rotates around the straight line where the first rotating assembly is located, and the illumination direction of the lamp body can be adjusted; the first rotating assembly includes:

the first rotating seat is arranged in the base and is rotationally connected with the first rotating groove; and

the positioning seat is rotatably connected with the base, the center of the positioning seat penetrates through the first through hole and is connected with the first rotating seat, and the top end of the positioning seat is connected with the supporting column.

2. The adjustable direction of illumination desk lamp of claim 1, wherein said positioning base comprises: the positioning seat comprises a positioning plate which is rotatably connected with the top surface of the base, and the top end of the base is provided with an arc-shaped adjusting groove;

the bottom end of the positioning plate is provided with an adjusting bulge connected with the arc-shaped adjusting groove, and the adjusting bulge is in sliding connection with the arc-shaped adjusting groove, so that the rotating range of the support column along the second plane is limited.

3. The adjustable direction of illumination desk lamp of claim 2, wherein said positioning base further comprises:

the top end of the first rotating shaft is connected with the center of the bottom end of the positioning plate, and the bottom end of the first rotating shaft penetrates through the first through hole and is connected with the first rotating seat; and

the first positioning ring is arranged at the bottom end of the positioning plate, the first rotating shaft is positioned at the center of the first positioning ring, and the first positioning ring is used for limiting the distance between the positioning plate and the base;

the center of the first rotating seat is vertically provided with an inserting sleeve, and the first rotating shaft is inserted into the inserting sleeve.

4. The adjustable lighting direction desk lamp as claimed in claim 3, wherein the first positioning ring comprises:

the spacing part is connected with the bottom end of the positioning plate, extends along the bottom surface of the positioning plate and is used for reducing the contact surface of the positioning plate and the top surface of the base; and

the top end of the second rotating portion is connected with the bottom end of the spacing portion and vertically extends downwards, the bottom end of the second rotating portion is connected with the inserting sleeve in an inserting mode, and the outer ring of the second rotating portion is connected with the first through hole in a rotating mode.

5. The adjustable illumination direction desk lamp as claimed in claim 3, wherein the first rotating base comprises:

a first rotating part which is rotatably connected with the first rotating groove; and

the first limiting part is connected with the top end of the first rotating part, and the cross section of the first limiting part is larger than that of the first through hole, so that the position of the first rotating seat is limited;

a second positioning ring is arranged at the top end in the base, and the second positioning ring is sleeved on the outer ring of the first positioning ring;

the first limiting portion comprises a plurality of elastic pieces, the elastic pieces are arranged in a surrounding mode with the axis of the first rotating shaft as the center, and the elastic pieces are used for elastically extruding the outer ring of the second positioning ring.

6. The desk lamp with the adjustable illumination direction as claimed in claim 5, wherein a positioning column is arranged at the bottom end of the positioning plate, and the positioning column is arranged between the first rotating shaft and the first positioning ring;

the first limiting part is further provided with a connecting hole, the connecting hole is located corresponding to the positioning column, and the first limiting part is connected with the positioning column through a screw.

7. The illumination direction adjustable desk lamp of claim 6, wherein the connecting holes and the elastic member are both in an annular array along the central axis of the insertion sleeve, and the connecting holes and the elastic member are uniformly distributed on the first limiting portion at intervals.

8. The adjustable illumination direction desk lamp as claimed in claim 5, wherein the elastic member comprises:

the elastic arm is arranged at the top end of the first limiting part and used for extruding the bottom end of the second positioning ring, and the elastic arm extends along the bottom surface of the second positioning ring; and

the positioning bulge is connected with one end of the elastic arm and is positioned on the outer ring of the second positioning ring and used for limiting the position of the second positioning ring.

9. The desk lamp with adjustable illumination direction according to claim 2, wherein the lamp body is rotatably connected to the supporting pillar by a second rotating component, and the second rotating component comprises:

the third rotating seat is connected with one end of the supporting column, a third rotating groove is formed in the third rotating seat, the extending direction of the long edge of the third rotating groove is perpendicular to the extending direction of the long edge of the supporting column, a second through hole is formed in one side of the third rotating seat, and the second through hole is communicated with the third rotating groove;

the second rotating block is arranged in the third rotating seat and is rotationally connected with the third rotating groove; and

the fourth rotating seat is arranged on one side of the third rotating seat and is connected with one end of the lamp body, and the fourth rotating seat comprises an inserting shaft connected with the second through hole;

the plug shaft is rotatably connected with the second through hole, one end of the plug shaft is fixedly connected with the second rotating block, and the second rotating block drives the fourth rotating seat to rotate by taking the axis of the plug shaft as the center.

10. The desk lamp with adjustable illumination direction as claimed in claim 3, wherein the inserting sleeve is provided with a locking protrusion inside, the bottom end of the first rotating shaft is provided with a locking groove corresponding to the locking protrusion,

the clamping protrusion is connected with the clamping groove in an inserting mode, so that the first rotating seat and the positioning plate rotate synchronously.

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