Energy-saving table lamp capable of conveniently adjusting irradiation range

Abstract

The invention relates to the technical field of energy-saving table lamps, in particular to an energy-saving table lamp convenient to adjust irradiation range, which comprises a base, a lamp holder, a lampshade and a lamp tube, the lamp holder is arranged on the base, the lampshade is arranged at the top end of the lamp holder, the lamp tube is arranged in the lampshade, the lamp holder comprises a first holder body and a second holder body, and one end of the first holder body is hinged to the base; one end of the first frame body is hinged to the base, the other end of the first frame body is hinged to the second frame body, the first frame body comprises an outer tube body and an inner tube body movably inserted into the outer tube body, the outer tube body and the inner tube body are hinged to the base and the second frame body respectively, the left side and the right side of the lampshade are each provided with the two light reflecting plates, and the two light reflecting plates can rotate relatively, so that the width of the lampshade is adjusted; therefore, the irradiation range of the table lamp is changed, and various light requirements of users are met.

Description

Technical Field

[0001] The invention relates to the technical field of energy-saving desk lamps, in particular to an energy-saving desk lamp with an easily adjustable irradiation range. Background Art

[0002] As one of the common household appliances, a desk lamp is placed on a desktop for users to read and work. In traditional technology, a desk lamp generally includes a base, a lamp stand, a lampshade and a lamp tube, wherein the lamp tube generally adopts an LED energy-saving bulb, and the lamp stand usually adopts a shieldable and retractable structure to adjust the position of the lampshade.

[0003] At present, the existing table lamp shades are usually fixed structures. Under the constraints of the shade, the illumination range of the table lamp is usually fixed and cannot be adjusted to meet the various usage needs of users. For example, when the user is reading, the illumination range of the table lamp needs to be able to completely cover the book and provide sufficient light intensity to make the text clearly legible and reduce eye fatigue caused by insufficient or excessive light. For example, when the user is painting, hand-making or repairing small objects, a more sufficient and concentrated light beam is required. At this time, the user needs to make the illumination range of the table lamp small and the intensity high to meet the user's delicate operation and reduce mistakes caused by insufficient light.

[0004] In addition, when users use computers at their desks, the computer screen itself emits light, while the surrounding light is dim, which can easily cause eye fatigue over time. Therefore, in order to increase the light intensity around the desktop, we need a desk lamp with a large illumination range and low brightness to reduce the brightness difference between the computer screen and the surrounding environment. However, since traditional desk lamps cannot meet the requirements for adjusting the illumination range, we propose an energy-saving desk lamp that is easy to adjust the illumination range to solve the above drawbacks. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving desk lamp with an easily adjustable irradiation range, so as to solve the problems raised in the above-mentioned background technology.

[0006] The present invention is achieved through the following technical solutions:

[0007] An energy-saving desk lamp that is convenient for adjusting the irradiation range, comprising a base, a lamp stand, a lampshade and a lamp tube, wherein the lamp stand is arranged on the base, the lampshade is arranged at the top of the lamp stand, and the lamp tube is arranged in the lampshade, the lamp stand comprises a first frame body and a second frame body, one end of the first frame body is hinged to the base, and the other end of the first frame body is hinged to the second frame body, the first frame body comprises an outer tube body and an inner tube body movably inserted into the outer tube body, and the outer tube body and the inner tube body are respectively hinged to the base and the second frame body;

[0008] The lampshade is in an inverted U shape, a lampshade frame is fixedly arranged on the outside of the lampshade, the lampshade frame is in a U shape, a rotating part is also arranged on the lampshade frame, the rotating part is hingedly arranged with the free end of the second frame, the left and right side walls of the lampshade are both provided with notches, the left and right side notches of the lampshade are both provided with reflectors, and the top end of the reflector is rotatably connected with the front and rear side walls of the lampshade;

[0009] A lampshade adjusting component is also provided inside the lampshade, and the input end of the lampshade adjusting component is connected to the inner tube body through a traction rope. The lampshade adjusting component is used to control the bottom ends of the two reflectors to move closer to or farther away from each other; when the inner tube body is pulled outward, the bottom ends of the two reflectors move away from each other, and when the inner tube body is inserted inward, the bottom ends of the two reflectors move closer to each other.

[0010] Optionally, an inner surface of one end of the front and rear side walls of the lampshade is provided with an embedded groove, and the lampshade adjustment assembly includes a bidirectional screw rotatably arranged in the embedded groove, the bidirectional screw is distributed along the width direction of the lampshade, and displacement blocks are symmetrically arranged at both ends of the bidirectional screw, the displacement blocks are slidably connected to the embedded groove, and the displacement blocks are also threadedly connected to the bidirectional screw;

[0011] A moving block is provided on the inner surface of the reflector plate for sliding along the width direction of the reflector plate, and the moving block is hingedly arranged with the corresponding displacement block.

[0012] Optionally, a winding wheel is fixedly mounted on the middle position of the bidirectional screw, one end of the traction rope is wound around the winding wheel, a threading channel for the traction rope to pass through is opened in the side wall of the lampshade, one end of the threading channel is communicated with the embedded groove, and the other end of the threading channel is located in the middle position of the top wall of the lampshade, and a threading hole for the traction rope to pass through is jointly opened on the rotating part and the lampshade frame, and a through hole is opened on the top of the inner tube body, and the free end of the traction rope passes through the threading channel, the threading hole and the through hole in sequence and is connected to the bottom end of the inner tube body.

[0013] Optionally, a pulling spring is provided at the bottom end of the inner tube body, a connecting piece is provided at the top end of the pulling spring, and one end of the traction rope extending into the inner tube body is fixedly connected to the connecting piece.

[0014] Optionally, a positioning ring is fixedly provided on the inner wall of the embedded groove and on both sides of the winding wheel, and a torsion spring is provided between the positioning ring and the bidirectional screw. In a natural state, the traction rope is in a straight state and the torsion spring is in a tightened state. When the torsion spring is released from the tightened state, the winding wheel can reel in the traction rope.

[0015] Optionally, one side wall of the inner tube body is provided with a through opening distributed along its length direction, and the side wall of the outer tube body is provided with a strip opening distributed along its length direction, and the strip opening and the through opening are aligned; the inner wall of the inner tube body is slidably connected with a follower block along its length direction, the traction rope is fixedly connected to the follower block, a positioning bolt is fixedly provided on the surface of the follower block, the positioning bolt passes through the through opening and the strip opening, and a nut is threadedly connected to the outside of the positioning bolt.

[0016] Optionally, the inner top wall of the lampshade is provided with an outer protective tube along its own height direction, and a lifting part is provided inside the outer protective tube. The bottom end of the lifting part is fixedly connected to the lamp tube through a connecting frame, and an elastic part is also provided between the lifting part and the inner top wall of the lampshade.

[0017] Optionally, the top of the reflector is in the shape of a round rod, an arc groove is provided on the outer surface of the top of the reflector along the circumferential direction, teeth are evenly distributed in the arc groove, and the bottom ends of the left and right side walls of the lampshade are provided with mounting openings, a winding shaft is rotatably provided in the mounting opening, and a driven gear is also mounted on the outside of the winding shaft, and the driven gear is meshed with the teeth;

[0018] Extension bodies are symmetrically provided on both sides of the top of the lifting part, and openings for the extension bodies to pass through are axially opened on the side walls of the outer protective tube. The ends of the two extension bodies are connected with pulling ropes, and the other ends of the pulling ropes are wound around the outside of the winding shaft. When the reflector is flush with the side wall of the lampshade, the connecting frame is fitted with the bottom end of the outer protective tube; when the reflector is expanded outward from being flush with the side wall of the lampshade, the lifting part moves downward.

[0019] Optionally, the inner surface of the reflective plate is provided with guide rods distributed along the width direction of the reflective plate, and the moving block is slidably matched with the guide rods.

[0020] Optionally, the front and rear ends of the reflector are respectively fitted with the front and rear side walls of the lampshade, and the top of the reflector is fitted with the lower edge of the side wall of the lampshade.

[0021] Compared with the prior art, the present invention provides an energy-saving desk lamp that is easy to adjust the irradiation range, and has the following beneficial effects:

[0022] 1. The lampshade of the present invention has two reflectors on the left and right sides respectively, and the two reflectors can rotate relative to each other, so as to adjust the width of the lampshade to change the irradiation range of the desk lamp and meet the various lighting needs of users;

[0023] 2. The height of the lamp stand and the width of the lamp shade in the present invention are linked to each other. When the lamp stand is raised, the width of the lamp shade is also increased accordingly. When the lamp stand is lowered, the width of the lamp shade is also reduced accordingly, thereby facilitating the user to adjust the width of the lamp shade.

[0024] 3. The two reflectors in the present invention can expand outward and exceed the initial angle of the lampshade. At the same time, the lamp tube can also be lowered inside the lampshade, thereby fully expanding the irradiation range of the desk lamp to meet the lighting needs of a wider range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the lampshade structure of the present invention;

[0027] Figure 3 A cross-sectional view of the lampshade of the present invention in a first state;

[0028] Figure 4 A cross-sectional view of the lampshade of the present invention in the second state;

[0029] Figure 5 A cross-sectional view of the lampshade of the present invention in the third state;

[0030] Figure 6 It is a partial structural cross-sectional view of the lampshade of the present invention;

[0031] Figure 7 This is a schematic diagram of the lamp structure of the present invention;

[0032] Figure 8 It is a cross-sectional view of the first frame structure of the present invention;

[0033] Fig. 9 for Figure 3 The corresponding figure at A is enlarged;

[0034] Fig.10 for Figure 4 The corresponding figure at B is enlarged;

[0035] Fig.11 for Figure 4 The corresponding figure at C is enlarged;

[0036] Fig.12 for Figure 8 The corresponding figure is enlarged at point D in the middle.

[0037] In the figure: 100, base; 200, lamp holder; 201, first frame; 2011, outer tube; 2012, inner tube; 202, second frame; 203, pull spring; 204, connector; 205, through hole; 206, strip hole; 207, follower block; 208, positioning bolt; 209, nut; 300, lampshade; 301, lampshade holder; 302, rotating part; 303, reflector; 304, guide rod; 305, embedded groove; 306, threading channel; 307, threading hole; 308, outer protective tube; 309, lifting part; 310, connecting frame; 311, elastic member; 312, teeth; 313, winding shaft; 314, driven gear; 315, extension body; 316, pulling rope; 400, lamp tube; 500, lampshade adjustment assembly; 501, bidirectional screw; 502, displacement block; 503, moving block; 504, winding wheel; 505, positioning ring; 600, traction rope. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Please refer to Figure 1 - Fig.12 , an energy-saving desk lamp that is easy to adjust the irradiation range, includes a base 100, a lamp holder 200, a lampshade 300 and a lamp tube 400, wherein the lamp holder 200 is arranged on the base 100, the lampshade 300 is arranged at the top of the lamp holder 200, and the lamp tube 400 is arranged in the lampshade 300, the lamp holder 200 includes a first frame 201 and a second frame 202, one end of the first frame 201 is hinged to the base 100, and the other end of the first frame 201 is hinged to the second frame 202; the lampshade 300 is inverted U shape, and a lampshade frame 301 is fixedly provided on the outside of the lampshade 300, and the lampshade frame 301 is in a U shape, and a rotating part 302 is also provided on the lampshade frame 301, and the rotating part 302 is hinged to the free end of the second frame 202. It should be noted that the first frame 201 and the base 100, the first frame 201 and the second frame 202, and the second frame 202 and the rotating part 302 are all rotatably connected via damping bearings, which facilitates the adjustment of the position and angle of the lampshade 300, and the position and angle of the lampshade 300 can remain stable at any position.

[0040] Furthermore, the first frame 201 includes an outer tube 2011 and an inner tube 2012 movably inserted into the outer tube 2011. The outer tube 2011 and the inner tube 2012 are respectively hinged to the base 100 and the second frame 202, that is, the inner tube 2012 is extended and retracted inside the outer tube 2011, so that the length of the first frame 201 can be adjusted, and then the height of the lampshade 300 can be adjusted. It should be supplemented that a knob screw is threadedly connected to the side wall of the outer tube 2011, and the inner end of the knob screw is used to abut against the inner tube 2012, so as to fix the position of the inner tube 2012, that is, to adjust the length of the first frame 201.

[0041] like Figure 2 As shown, the left and right side walls of the lampshade 300 are both provided with notches, and reflectors 303 are provided at the notches on the left and right sides of the lampshade 300, and the top of the reflector 303 is rotatably connected to the front and rear side walls of the lampshade 300; that is, the front and rear ends of the top of the reflector 303 are both provided with rotating shafts, and the rotating shafts are rotatably connected to the front and rear side walls of the lampshade 300. When the reflector 303 rotates, the irradiation range of the light can be controlled.

[0042] A lampshade adjustment component 500 is also provided inside the lampshade 300. The input end of the lampshade adjustment component 500 is connected to the inner tube body 2012 through a traction rope 600. The lampshade adjustment component 500 is used to control the bottom ends of the two reflectors 303 to move closer to or farther from each other. When the inner tube body 2012 is pulled outward, the bottom ends of the two reflectors 303 move away from each other, and when the inner tube body 2012 is inserted inward, the bottom ends of the two reflectors 303 move closer to each other. That is, when the height of the lampshade 300 increases, the bottom ends of the two reflectors 303 move away from each other, thereby further expanding the irradiation range; when the height of the lampshade 300 decreases, the bottom ends of the two reflectors 303 move closer to each other, thereby further reducing the irradiation range.

[0043] The structure of the lampshade adjustment assembly 500 is described below:

[0044] An inner surface of one end of the front and rear side walls of the lampshade 300 is provided with an embedded groove 305. The lampshade adjustment assembly 500 includes a bidirectional screw 501 rotatably arranged in the embedded groove 305. The bidirectional screw is distributed along the width direction of the lampshade 300. Displacement blocks 502 are symmetrically arranged at both ends of the bidirectional screw 501. The displacement blocks 502 are slidably connected with the embedded groove 305 and are also threadedly connected with the bidirectional screw 501. The inner surface of the reflector 303 is provided with a moving block 503 slidably along the width direction of the reflector 303. The moving block 503 is hingedly arranged with the corresponding displacement block 502. Therefore, when the bidirectional screw 501 rotates toward one side, the two displacement blocks 502 move away from each other, thereby driving the bottom ends of the two reflectors 303 to move away from each other; conversely, when the bidirectional screw 501 rotates toward the other side, the two displacement blocks 502 move closer to each other, thereby driving the bottom ends of the two reflectors 303 to move away from each other.

[0045] A winding wheel 504 is fixedly mounted in the middle of the bidirectional screw 501, one end of the traction rope 600 is wound around the winding wheel 504, a threading channel 306 is provided in the side wall of the lampshade 300 for the traction rope 600 to pass through, one end of the threading channel 306 is communicated with the embedded groove 305, and the other end of the threading channel 306 is located in the middle of the top wall of the lampshade 300, and a threading hole 307 is provided on the rotating part 302 and the lampshade frame 301 for the traction rope 600 to pass through. Figure 2 As shown, a through hole is provided at the top of the inner tube 2012, and the free end of the traction rope 600 passes through the threading channel 306, the threading hole 307 and the through hole in sequence and is connected to the bottom end of the inner tube 2012. When the inner tube 2012 is inserted into the outer tube 2011, it is equivalent to the traction rope 600 continuously pulling the winding wheel 504 to rotate, thereby driving the two displacement blocks 502 to approach each other.

[0046] In addition, the inner surface of the reflector 303 is provided with guide rods 304 distributed along the width direction thereof, and the moving block 503 is slidably matched with the guide rods 304. The front and rear ends of the reflector 303 are respectively fitted with the front and rear side walls of the lampshade 300, and the top of the reflector 303 is fitted with the lower edge of the side wall of the lampshade 300, which is used to reduce the gap between the reflector 303 and the side wall of the lampshade 300, prevent light from emitting from the gap of the reflector 303, and improve the closure of the lampshade 300.

[0047] Furthermore, a pull spring 203 is provided at the bottom end of the inner tube 2012, and a connecting piece 204 is provided at the top end of the pull spring 203. Figure 8As shown, one end of the traction rope 600 extending into the inner tube body 2012 is fixedly connected to the connector 204. Positioning collars 505 are fixedly provided on the inner wall of the embedded groove 305 and on both sides of the winding wheel 504. A torsion spring is provided between the positioning collar 505 and the bidirectional screw 501. In the natural state, the traction rope 600 is in a straight state, and the torsion spring is in a tightened state. When the torsion spring is released from the tightened state, the winding wheel 504 can reel the traction rope 600. When the inner tube body 2012 is pulled outward, the torsion spring is gradually released from the tightened state, and at this time, the two displacement blocks 502 can be driven away from each other, and the winding wheel 504 can continuously reel the traction rope 600, so that the traction rope 600 is always in a straight state.

[0048] On the other hand, a through hole 205 distributed along the length direction of the inner tube 2012 is provided on one side wall, and a strip-shaped opening 206 distributed along the length direction of the outer tube 2011 is provided on the side wall, and the strip-shaped opening 206 and the through hole 205 are aligned and distributed; a follower block 207 is slidably connected to the inner wall of the inner tube 2012 along the length direction of the inner tube 2012, and the traction rope 600 is fixedly connected to the follower block 207, and a positioning bolt 208 is fixedly provided on the surface of the follower block 207, and the positioning bolt 208 passes through the through hole 205 and the strip-shaped opening 206, and a nut 209 is connected to the outer thread of the positioning bolt 208. Since one end of the traction rope 600 is connected to the connecting piece 204 in the inner tube 2012, and the follower block 207 is connected to the traction rope 600, when the inner tube 2012 is inserted inward or pulled out, the follower block 207 can move synchronously with the inner tube 2012.

[0049] When the user only needs to move the height of the lampshade 300 but does not need to adjust the irradiation range, the user can tighten the nut 209 so that the end of the nut 209 fits tightly against the outer surface of the outer tube body 2011, thereby fixing the position of the driven block 207; at this time, when the inner tube body 2012 is pulled outward, the traction rope 600 located at the bottom of the driven block 207 will be in a relaxed state; conversely, when the inner tube body 2012 is inserted inward, the pulling spring 203 will be fully stretched.

[0050] In the specific application process of this embodiment, in the initial state, the two reflectors 303 are aligned with the left and right side walls of the lampshade 300 respectively. Figure 3 When the user needs to expand the irradiation range, the inner tube 3012 can be pulled up, and vice versa, when the user needs to reduce the irradiation range, the inner tube 3012 can be inserted inward. In addition, when the user only needs to adjust the height of the lampshade 300 and does not need to adjust the angles of the two reflectors 303, the nut 209 can be tightened.

[0051] Example 2: Please refer to Figure 1 - Fig.12This embodiment also proposes an energy-saving desk lamp that is easy to adjust the irradiation range. The difference between this embodiment and the first embodiment is that: the inner top wall of the lampshade 300 is provided with an outer protective tube 308 along its own height direction, and a lifting part 309 is provided inside the outer protective tube 308. The bottom end of the lifting part 309 is fixedly connected to the lamp tube 400 through a connecting frame 310, and an elastic member 311 is also provided between the lifting part 309 and the inner top wall of the lampshade 300. The lifting part 309 and the outer protective tube 308 are slidably matched in the vertical direction, and the elastic member 311 is an elastic rope or a spring. When the lifting part 309 is not subjected to the external force of the system, under the pulling force of the elastic member 311, the connecting frame 310 always abuts against the bottom end of the outer protective tube 308.

[0052] In some embodiments of the present application, the top of the reflector 303 is in the shape of a round rod, and an arc groove is provided on the outer surface of the top of the reflector 303 along the circumferential direction. The center of the circle corresponding to the arc groove coincides with the central axis of the reflector 303, and teeth 312 are evenly distributed in the arc groove. The bottom ends of the left and right side walls of the lampshade 300 are provided with installation openings, and a winding shaft 313 is rotatably provided in the installation opening. A driven gear 314 is also mounted on the outside of the winding shaft 313, and the driven gear 314 is meshed with the teeth 312; therefore, when the reflector 303 rotates, the corresponding driven gear 314 can be driven to rotate.

[0053] In addition, extension bodies 315 are symmetrically provided on both sides of the top of the lifting part 309, and openings for the extension bodies 315 to pass through are axially opened on the side walls of the outer protective tube 308. The ends of the two extension bodies 315 are connected to pulling ropes 316, and the other ends of the pulling ropes 316 are wound around the outside of the winding shaft 313. When the reflector 303 is flush with the side wall of the lampshade 300, the connecting frame 310 is in contact with the bottom end of the outer protective tube 308; when the reflector 303 is expanded outward from being flush with the side wall of the lampshade 300, the lifting part 309 moves downward; when the reflector 303 is stored from the outside to the inside, the pulling rope 316 gradually becomes relaxed.

[0054] In summary, in the initial state of this embodiment, the two reflectors 303 are flush with the left and right side walls of the lampshade 300 respectively. When the two reflectors 303 are stored inward, the pull rope 316 gradually becomes relaxed, and the position of the lamp tube 400 remains unchanged. Due to the storage of the reflectors 303, the light irradiation range becomes narrower and narrower. When the two reflectors 303 are expanded outward, the reflectors 303 can drive the winding shaft 313 to rotate, so that the winding shaft 313 pulls the pull rope 316, driving the lifting part 309 to carry the lamp tube 400 down. Since the expansion range of the reflectors 303 is limited, the lower the height of the lamp tube 400 is, the less it will be blocked by the lampshade 300, which helps to further expand the irradiation range to meet more lighting needs of users.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving desk lamp that is easy to adjust the irradiation range, comprising a base (100), a lamp stand (200), a lamp shade (300) and a lamp tube (400), wherein the lamp stand (200) is arranged on the base (100), the lamp shade (300) is arranged on the top of the lamp stand (200), and the lamp tube (400) is arranged in the lamp shade (300), characterized in that: The lamp stand (200) comprises a first frame body (201) and a second frame body (202); one end of the first frame body (201) is hinged to the base (100), and the other end of the first frame body (201) is hinged to the second frame body (202); the first frame body (201) comprises an outer tube body (2011) and an inner tube body (2012) movably inserted into the outer tube body (2011); the outer tube body (2011) and the inner tube body (2012) are hinged to the base (100) and the second frame body (202) respectively; The lampshade (300) is in an inverted U shape. A lampshade frame (301) is fixedly provided on the outside of the lampshade (300). The lampshade frame (301) is in a U shape. A rotating portion (302) is also provided on the lampshade frame (301). The rotating portion (302) is hingedly arranged with the free end of the second frame (202). The left and right side walls of the lampshade (300) both have notches. Reflectors (303) are provided at the notches on the left and right sides of the lampshade (300). The top end of the reflector (303) is rotatably connected with the front and rear side walls of the lampshade (300). A lampshade adjustment component (500) is also provided inside the lampshade (300), and an input end of the lampshade adjustment component (500) is connected to the inner tube body (2012) via a traction rope (600). The lampshade adjustment component (500) is used to control the bottom ends of the two reflectors (303) to move closer to or farther away from each other; when the inner tube body (2012) is pulled outward, the bottom ends of the two reflectors (303) move away from each other, and when the inner tube body (2012) is inserted inward, the bottom ends of the two reflectors (303) move closer to each other.

2. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 1, characterized in that: An inner surface of one end of the front and rear side walls of the lampshade (300) is provided with an embedded groove (305); the lampshade adjustment component (500) comprises a bidirectional screw (501) rotatably arranged in the embedded groove (305); the bidirectional screw (501) is distributed along the width direction of the lampshade (300); displacement blocks (502) are symmetrically arranged at both ends of the bidirectional screw (501); the displacement blocks (502) are slidably connected to the embedded groove (305); and the displacement blocks (502) are also threadedly connected to the bidirectional screw (501); A moving block (503) is provided on the inner surface of the reflective plate (303) so as to slide along the width direction of the reflective plate (303), and the moving block (503) is hingedly arranged with the corresponding displacement block (502).

3. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 2, characterized in that: A winding wheel (504) is fixedly mounted at the middle position of the bidirectional screw rod (501), one end of the traction rope (600) is wound around the winding wheel (504), a threading channel (306) for the traction rope (600) to pass through is provided in the side wall of the lampshade (300), one end of the threading channel (306) is communicated with the embedded groove (305), the other end of the threading channel (306) is located in the middle position of the top wall of the lampshade (300), a threading hole (307) for the traction rope (600) to pass through is provided on the rotating part (302) and the lampshade frame (301), a through hole is provided at the top end of the inner tube body (2012), and the free end of the traction rope (600) passes through the threading channel (306), the threading hole (307) and the through hole in sequence and is connected to the bottom end of the inner tube body (2012).

4. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 3, characterized in that: A pulling spring (203) is provided at the bottom end of the inner tube body (2012), a connecting piece (204) is provided at the top end of the pulling spring (203), and one end of the pulling rope (600) extending into the inner tube body (2012) is fixedly connected to the connecting piece (204).

5. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 4, characterized in that: Positioning rings (505) are fixedly provided on the inner wall of the embedded groove (305) and on both sides of the winding wheel (504), and a torsion spring is provided between the positioning ring (505) and the bidirectional screw (501). In a natural state, the traction rope (600) is in a straight state and the torsion spring is in a tightened state. When the torsion spring is released from the tightened state, the winding wheel (504) can reel in the traction rope (600).

6. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 5, characterized in that: A through hole (205) distributed along the length direction of the inner tube body (2012) is formed on one side wall of the inner tube body (2012), and a strip-shaped opening (206) distributed along the length direction of the outer tube body (2011) is formed on the side wall of the outer tube body (2011), and the strip-shaped opening (206) and the through hole (205) are aligned and distributed; a driven block (207) is slidably connected to the inner wall of the inner tube body (2012) along the length direction of the inner tube body (2012), and the traction rope (600) is fixedly connected to the driven block (207), and a positioning bolt (208) is fixedly provided on the surface of the driven block (207), and the positioning bolt (208) passes through the through hole (205) and the strip-shaped opening (206), and a nut (209) is threadedly connected to the outside of the positioning bolt (208).

7. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 1, characterized in that: The inner top wall of the lampshade (300) is provided with an outer protective tube (308) along its own height direction, and a lifting part (309) is provided inside the outer protective tube (308). The bottom end of the lifting part (309) is fixedly connected to the lamp tube (400) via a connecting frame (310), and an elastic member (311) is also provided between the lifting part (309) and the inner top wall of the lampshade (300).

8. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 7, characterized in that: The top of the reflector (303) is in the shape of a round rod, and an arc-shaped groove is formed on the outer surface of the top of the reflector (303) along the circumferential direction, and teeth (312) are evenly distributed in the arc-shaped groove. The bottom ends of the left and right side walls of the lampshade (300) are both provided with mounting openings, and a winding shaft (313) is rotatably arranged in the mounting openings. A driven gear (314) is also mounted on the outside of the winding shaft (313), and the driven gear (314) is meshed with the teeth (312); Extension bodies (315) are symmetrically arranged on both sides of the top of the lifting part (309); an opening for the extension body (315) to pass through is axially provided on the side wall of the outer protective tube (308); the ends of the two extension bodies (315) are connected with a pulling rope (316); the other end of the pulling rope (316) is wound around the outside of the winding shaft (313); when the reflector (303) is flush with the side wall of the lampshade (300), the connecting frame (310) is in contact with the bottom end of the outer protective tube (308); when the reflector (303) is expanded outward from being flush with the side wall of the lampshade (300), the lifting part (309) moves downward.

9. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 2, characterized in that: The inner surface of the reflective plate (303) is provided with guide rods (304) distributed along the width direction of the reflective plate (303), and the moving block (503) is slidably matched with the guide rods (304).

10. The energy-saving desk lamp with easy-to-adjust irradiation range according to claim 1, characterized in that: The front and rear ends of the reflector (303) are respectively fitted with the front and rear side walls of the lampshade (300), and the top of the reflector (303) is fitted with the lower edge of the side wall of the lampshade (300).

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