Table lamp

Abstract

The invention discloses a table lamp, and relates to the technical field of table lamps, the table lamp comprises a lamp holder and at least two lamp assemblies, and the at least two lamp assemblies are arranged in the circumferential direction of the lamp holder; each lamp assembly is provided with at least two lamp arms which are sequentially hinged, each lamp arm is provided with a light-emitting device, and the lamp arms of the lamp assemblies can be unfolded in different directions. According to the technical scheme, the table lamp can meet different lighting requirements.

Description

Technical Field

[0001] The invention relates to the technical field of table lamps, and in particular to a table lamp. Background Art

[0002] At present, desk lamps can usually only illuminate a fixed area, and the lighting area is limited. If a larger area needs to be illuminated, or different areas need to be illuminated, multiple desk lamps need to be used, which is inconvenient to use. Summary of the invention

[0003] The main purpose of the present invention is to provide a desk lamp, which is intended to enable the desk lamp to meet different lighting needs.

[0004] To achieve the above-mentioned purpose, the desk lamp proposed in the present invention includes a lamp holder and at least two groups of lamp assemblies, and the at least two groups of lamp assemblies are arranged along the circumference of the lamp holder; the lamp assembly has at least two lamp arms hinged in sequence, and the lamp arms are provided with light-emitting devices, and the lamp arms of at least two groups of lamp assemblies can be unfolded in different directions.

[0005] In one embodiment, the two lamp arms hinged to each other are respectively a first lamp arm and a second lamp arm, the first lamp arm is connected between the lamp holder and the second lamp arm, the first lamp arm is provided with a storage groove, and at least part of the structure of the second lamp arm can be folded in the storage groove.

[0006] In one embodiment, the second lamp arm is provided with a first induction switch, and the first induction switch is configured to detect the unfolding and folding state of the second lamp arm relative to the first lamp arm, so as to control the on / off state of the light emitting device on the second lamp arm;

[0007] Wherein, when the second lamp arm is folded in the storage slot, the light-emitting device is turned off, and when the second lamp arm is extended outward from the storage slot, the light-emitting device is turned on.

[0008] In one embodiment, the first induction switch is configured as a Hall sensor, and the first lamp arm is provided with a first magnet;

[0009] And / or, the first induction switch is configured as a proximity switch;

[0010] And / or, in one embodiment, the first induction switch is arranged at an end of the second lamp arm away from the hinged position.

[0011] In one embodiment, the lamp arm comprises at least two sub-lamp arms arranged side by side, the arrangement direction of the two sub-lamp arms is parallel to the hinge axis of the lamp arm, and the sub-lamp arms are provided with the light-emitting device;

[0012] And / or, the lamp arm includes a connecting body and the light-emitting device, the connecting body connects the lamp holder and at least one of the other lamp arms, the light-emitting device is arranged on one side of the connecting body and extends along the length direction of the lamp arm; when two adjacent lamp arms are unfolded to the same straight line, the light-emitting devices of the two lamp arms are located on the same side of the lamp assembly.

[0013] In one embodiment, the lamp holder is provided with a first accommodation space, the lamp assembly is hinged to the lamp holder, and at least one group of the lamp assembly can be accommodated in the first accommodation space.

[0014] In one embodiment, a lamp arm hinged to the lamp holder is provided with a second induction switch, and the second induction switch is configured to detect the unfolding and folding state of the lamp arm relative to the lamp holder, so as to control the on / off state of the light emitting device on the lamp arm;

[0015] Wherein, when the lamp arm is folded in the first accommodation space, the light-emitting device is turned off, and when the lamp arm is extended outward from the first accommodation space, the light-emitting device is turned on.

[0016] In one embodiment, the lamp holder includes a base and a bracket, one end of the bracket is connected to the base, the lamp assembly is hinged to one end of the bracket away from the base, and the bracket is provided with the first accommodating space.

[0017] In one embodiment, the base is provided with a second accommodating space, and the bracket is hinged to the base and can be folded into the second accommodating space.

[0018] In one embodiment, the lamp holder is provided with a first control unit, the lamp arm is provided with a second control unit, and the second control unit is electrically connected to the first control unit and the light emitting device respectively;

[0019] And / or, two adjacent lamp arms are hinged via a damping shaft.

[0020] The technical solution of the present invention is to set at least two groups of lamp assemblies in the table lamp, and each lamp assembly has at least two lamp arms hinged in sequence; the lamp assemblies in different directions can be unfolded to illuminate areas in different directions; the lamp arms on the lamp assemblies can also be rotated to adjust the illumination direction, illumination angle and illumination height of the lamp assemblies, so that the table lamp can meet different lighting needs and improve the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A structural diagram of an embodiment of a desk lamp provided by the present invention;

[0023] Figure 2 for Figure 1 Another state diagram of the middle table lamp;

[0024] Figure 3 for Figure 1 A diagram showing a state in which the second lamp arm of a lamp assembly of a middle table lamp is folded into the first lamp arm;

[0025] Figure 4 for Figure 1 A diagram of a middle table lamp with a lamp assembly folded into a lamp holder;

[0026] Figure 5 A diagram showing a state in which a lamp assembly is folded into a lamp holder in another embodiment of the table lamp provided by the present invention;

[0027] Figure 6 for Figure 5 A diagram showing the lamp components of the mid-table lamp being folded into the lamp holder.

[0028] Description of Figure Numbers:

[0029] 100. Desk lamp; 1. Lamp holder; 11. Base; 12. Bracket; 121. First accommodating space; 13. Second magnet; 14. Control switch; 2. Lamp assembly; 21. Lamp arm; 211. Sub-lamp arm; 2111. Connecting body; 2112. Light-emitting device; 212. First lamp arm; 2121. Storage slot; 213. Second lamp arm; 214. First induction switch; 215. First magnet; 216. Second induction switch; 22. Damping shaft.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] 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.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] At present, desk lamps can usually only illuminate a fixed area, and the lighting area is limited. If a larger area needs to be illuminated, or different areas need to be illuminated, multiple desk lamps need to be used, which is inconvenient to use.

[0035] Based on the above problems, the present invention proposes a desk lamp 100 that can meet different lighting requirements.

[0036] Combined with reference Figure 1 and Figure 2 In one embodiment of the present invention, the desk lamp 100 includes a lamp holder 1 and at least two groups of lamp assemblies 2, and the at least two groups of lamp assemblies 2 are arranged along the circumference of the lamp holder 1; the lamp assembly 2 has at least two lamp arms 21 hinged in sequence, and the lamp arms 21 are provided with light-emitting devices 2112, and the lamp arms 21 of the at least two groups of lamp assemblies 2 can be unfolded in different directions.

[0037] The table lamp 100 proposed in the embodiment of the present application has a lamp holder 1 as a bearing base and a lamp assembly 2 arranged on the lamp holder 1. The lamp assembly 2 has at least two lamp arms 21. Each lamp arm 21 includes a connecting body 2111 and a light emitting device 2112 arranged on the connecting body 2111. The connecting body 2111 is a long strip structure. At least one end of the connecting body 2111 is hinged to the lamp holder 1 or other lamp arms 21. The light emitting device 2112 can be a lamp bead. A plurality of light emitting devices 2112 arranged in sequence along the length direction are arranged on the connecting body 2111. The light emitting device 2112 can also be set as a lamp tube or other structures, which are not limited here. The lamp arms 21 of the same lamp assembly 2 are hinged in sequence, and the length of the lighting source can be extended by unfolding the lamp arms 21. The irradiation angle and height of each lamp arm 21 can also be adjusted according to actual lighting needs. The lamp arms 21 of the lamp assembly 2 can also be folded to reduce the volume of the lamp assembly 2 and the table lamp 100.

[0038] In this embodiment, at least two groups of lamp assemblies 2 are arranged along the circumference of the lamp holder 1. For example, two groups of lamp assemblies 2 are arranged side by side, and the lamp arms 21 of the two groups of lamp assemblies 2 can be unfolded in opposite directions. Three groups of lamp assemblies 2 can also be arranged in a triangle, or four or more groups of lamp assemblies 2 can be arranged in a polygon. By arranging lamp assemblies 2 in different directions of the desk lamp 100, the lamp assemblies 2 in different directions can be unfolded to emit light in different directions and different areas. The lamp arms 21 on the lamp assemblies 2 can also be rotated to adjust the irradiation direction, irradiation angle, and irradiation height of the lamp assemblies 2, so that the desk lamp 100 can meet different lighting needs and improve the flexibility of use.

[0039] Combined with reference Figure 1 and Figure 3 In one embodiment, the two lamp arms 21 hinged to each other are respectively a first lamp arm 212 and a second lamp arm 213 , the first lamp arm 212 is connected between the lamp holder 1 and the second lamp arm 213 , the first lamp arm 212 is provided with a storage groove 2121 , and at least part of the structure of the second lamp arm 213 can be folded in the storage groove 2121 .

[0040] In this embodiment, at least part of the structure of the second lamp arm 213 can be rotated and folded in the storage groove 2121 of the first lamp arm 212, which can reduce the volume of the folded lamp assembly 2. Optionally, the entire second lamp arm 213 can be folded in the storage groove 2121 of the first lamp arm 212; or, in the following embodiments, the lamp arm 21 has at least two sections of sub-lamp arms 211 arranged side by side, and one section or part of the sub-lamp arms 211 can be folded in the storage groove 2121 of the first lamp arm 212, so that the other sub-lamp arms 211 of the second lamp arm 213 are located outside the storage groove 2121, which is not limited here.

[0041] Among them, when the lamp assembly 2 has two lamp arms 21, one end of the first lamp arm 212 is connected to the lamp holder 1, and the second lamp arm 213 is hinged to the other end of the first lamp arm 212; when the lamp assembly 2 has three or more lamp arms 21, any two adjacent lamp arms 21 serve as the first lamp arm 212 and the second lamp arm 213 respectively. Taking three lamp arms 21 as an example, the three lamp arms 21 are respectively a first lamp arm connected to the lamp holder 1, a middle lamp arm hinged to the first lamp arm, and a last lamp arm hinged to the middle lamp arm. The first lamp arm can be used as the first lamp arm 212, and the middle lamp arm can be used as the second lamp arm 213; the middle lamp arm can also be used as the first lamp arm 212, and the last lamp arm can be used as the second lamp arm 213; the last lamp arm can be folded in the storage groove 2121 of the middle lamp arm, and the middle lamp arm can be folded in the storage groove 2121 of the first lamp arm.

[0042] See also Figure 1 and Figure 2 In one embodiment, the second lamp arm 213 is provided with a first sensing switch 214, and the first sensing switch 214 is configured to detect the unfolding and folding states of the second lamp arm 213 relative to the first lamp arm 212, so as to control the switching state of the light-emitting device 2112 on the second lamp arm 213; wherein, when the second lamp arm 213 is folded in the storage groove 2121, the light-emitting device 2112 is extinguished, and when the second lamp arm 213 is unfolded outward from the storage groove 2121, the light-emitting device 2112 is lit.

[0043] In this embodiment, the first sensing switch 214 detects whether the second lamp arm 213 is folded in the storage slot 2121 of the first lamp arm 212, thereby controlling the switch state of the light emitting device 2112 on the second lamp arm 213. When the first sensing switch 214 detects that the second lamp arm 213 is unfolded from the storage slot 2121, the light emitting device 2112 is turned on to emit light; when the first sensing switch 214 detects that the second lamp arm 213 is folded into the storage slot 2121, the light emitting device 2112 is turned off to extinguish the light emitting device 2112; thus, there is no need to additionally control the switch state of the light emitting device 2112, thereby improving the convenience of use of the desk lamp 100.

[0044] Moreover, in some embodiments, a second control unit is provided in the lamp arm 21. In this case, the first sensing switch 214 is provided on the second lamp arm 213. The first sensing switch 214 can be directly electrically connected to the second control unit in the second lamp arm 213, and transmit the sensing signal to the second control unit to control the switching state of the light-emitting device 2112 through the second control unit, thereby facilitating the connection of the control circuit in the lamp assembly 2.

[0045] Optionally, the first induction switch 214 can be configured as a Hall sensor, and a magnet is correspondingly provided on the first lamp arm 212, and the Hall element detects the folding state of the second lamp arm 213 by sensing the change in the magnetic field strength around it. The first induction switch 214 can also be configured as a proximity switch, which is triggered when the second lamp arm 213 is folded in the storage slot 2121. Alternatively, the first induction switch 214 can also be configured as a photoelectric first induction switch 214 or other induction devices.

[0046] See also Figure 1 In one embodiment, the first sensing switch 214 is disposed at an end of the second lamp arm 213 away from the hinged position.

[0047] This arrangement ensures that the first sensing switch 214 is triggered only when the second lamp arm 213 is folded into the storage slot 2121, thereby preventing the first sensing switch 214 from being too close to the hinged position and causing the first sensing switch 214 to be triggered when the second lamp arm 213 is not completely folded. This can reduce the risk of accidentally triggering the first sensing switch 214 and improve control accuracy.

[0048] See also Figure 1 In one embodiment, the first induction switch 214 is configured as a Hall sensor, and the first lamp arm 212 is provided with a first magnet 215 .

[0049] In this embodiment, a Hall sensor is used as the first induction switch 214, and the Hall sensor can generate an induction signal according to the change of the magnetic field strength around it. In specific applications, when the second lamp arm 213 is folded into the storage slot 2121, the distance between the Hall sensor and the first magnet 215 on the first lamp arm 212 becomes smaller, and the magnetic field strength around the Hall sensor increases. When the magnetic field strength sensed by the Hall sensor reaches the preset magnetic field strength, it is determined that the second lamp arm 213 has been folded into the storage slot 2121, and the Hall sensor sends an induction signal to enable the control unit to turn off the light-emitting device 2112 of the second lamp arm 213. When the second lamp arm 213 is moved out of the storage slot 2121, the Hall sensor is away from the first magnet 215, and the magnetic field strength around the Hall sensor is weakened, so that it is determined that the second lamp arm 213 is moved out of the storage slot 2121, and the Hall sensor sends an induction signal to enable the control unit to light up the light-emitting device 2112 on the second lamp arm 213. The Hall sensor is used as the sensing element, which is more sensitive to the detection of the folded and unfolded state of the second lamp arm 213, and can trigger the sensing switch without contacting the first lamp arm 212, thereby reducing the risk of damage caused by contact between the sensing switch and the first lamp arm 212.

[0050] Optionally, the first magnet 215 may be built into the first lamp arm 212 , or may be embedded in the surface of the first lamp arm 212 . For example, the first magnet 215 may be embedded in the wall of the storage groove 2121 , which is not limited here.

[0051] In one implementation, the first induction switch 214 is configured as a proximity switch.

[0052] In this embodiment, the proximity switch is a position switch that can be triggered without direct mechanical contact with the first lamp arm 212. When the second lamp arm 213 drives the proximity switch to fold into the storage slot 2121, and the distance between the sensing surface of the proximity switch and the first lamp arm 212 meets the triggering distance, the proximity switch can respond without mechanical contact or applying any pressure, thereby sending a sensing signal to turn off the light-emitting device 2112 of the second lamp arm 213; when the second lamp arm 213 is moved out of the storage slot 2121, the proximity switch moves away from the first lamp arm 212, thereby judging that the second lamp arm 213 is moved out of the storage slot 2121, and then sending a sensing signal to enable the control unit to light up the light-emitting device 2112 on the second lamp arm 213.

[0053] See also Figure 1 In one embodiment, the lamp arm 21 includes a connecting body 2111 and a light-emitting device 2112. The connecting body 2111 connects the lamp holder 1 and at least one of the other lamp arms 21. The light-emitting device 2112 is arranged on one side of the connecting body 2111 and extends along the length direction of the lamp arm 21. When two adjacent lamp arms 21 are unfolded to the same straight line, the light-emitting devices 2112 of the two lamp arms 21 are located on the same side of the lamp assembly 2.

[0054] In this embodiment, the light emitting device 2112 is fixed on the connecting body 2111, and the connecting body 2111 can be used to set the control unit and conductive unit of the lamp arm 21. The connecting body 2111 extends along the length direction of the lamp arm 21, and the light emitting device 2112 is set on the side of the connecting body 2111. When the two mutually hinged lamp arms 21 are unfolded to the same straight line, the light emitting devices 2112 of the two lamp arms 21 are located on the same side of the lamp assembly 2, thereby extending the length of the lighting source and increasing the lighting area and the lighting brightness in the same direction.

[0055] Optionally, the light-emitting surface of the light-emitting device 2112 is arranged back to back to the connecting body 2111; in some embodiments, the light-emitting device 2112 also has two light-emitting surfaces arranged back to back, and the two light-emitting surfaces are arranged along the length direction of the hinge axis of the lamp arm 21, so that the light-emitting device 2112 can emit light in multiple directions, thereby increasing the lighting area.

[0056] In one embodiment, the lamp arm 21 includes at least two sub-lamp arms 211 arranged side by side, the arrangement direction of the two sub-lamp arms 211 is parallel to the hinge axis of the lamp arm 21 , and the sub-lamp arms 211 are provided with light-emitting devices 2112 .

[0057] This arrangement, through the arrangement of multiple sub-lamp arms 211, increases the light-emitting area of ​​each section of the lamp arm 21, which is beneficial to improving the light-emitting brightness and the illumination area; and, a storage groove 2121 for folding other lamp arms 21 can also be formed between two adjacent sections of the sub-lamp arms 211.

[0058] Combined with reference Figures 1 to 6 In one embodiment, the lamp holder 1 is provided with a first accommodating space 121 , the lamp assembly 2 is hinged to the lamp holder 1 , and at least one group of lamp assembly 2 can be accommodated in the first accommodating space 121 .

[0059] In this embodiment, the lamp assembly 2 that is not in use can be folded into the lamp holder 1 to reduce the volume and occupied space of the desk lamp 100. Figure 5 and Figure 6 As shown, the lamp holder 1 can be provided with a larger first accommodation space 121 or multiple first accommodation spaces 121 corresponding to each lamp assembly 2, so that each lamp assembly 2 can be folded in the lamp holder 1 at the same time; Figure 4 As shown, only one group or part of the lamp assemblies 2 are accommodated, and this is not limited here.

[0060] See also Figure 5 and Figure 6 In one embodiment, the lamp holder 1 includes a base 11 and a bracket 12, one end of the bracket 12 is connected to the base 11, the lamp assembly 2 is hinged to the end of the bracket 12 away from the base 11, and the bracket 12 is provided with a first accommodating space 121.

[0061] In this embodiment, the base 11 is used to provide a stable bearing foundation, and can be set as a support structure, which can be placed on a horizontal bearing surface to make the table lamp 100 stand upright; the base 11 can also be provided with a clamping structure or a magnetic structure, so that the table lamp 100 can be adsorbed or clamped on an inclined surface or a vertical surface. The bracket 12 is connected to the base 11 and is used to connect the lamp assembly 2. Optionally, it can be configured that when the base 11 is placed on a horizontal bearing surface, the bracket 12 is in a vertical state, and the lamp assembly 2 is hinged to the top of the bracket 12.

[0062] Optionally, a main control unit of the desk lamp 100 may be provided in the base 11 , and a control switch 14 for controlling the on / off state of the desk lamp 100 may also be provided. The control switch 14 may be a button, a knob, a touch screen or other structures, which are not limited here.

[0063] In one embodiment, the base 11 is provided with a second accommodation space, and the bracket 12 is hinged to the base 11 and can be folded into the second accommodation space.

[0064] In this embodiment, the bracket 12 can rotate relative to the base 11. The illumination angle and illumination area of ​​the lamp assembly 2 can be adjusted by rotating the bracket 12, and the bracket 12 can also be folded into the base 11 to reduce the volume and storage space of the desk lamp 100 when the desk lamp 100 is not in use.

[0065] Combined with reference Figure 1 and Figure 2 In one embodiment, the lamp arm 21 hinged to the lamp holder 1 is provided with a second sensing switch 216, and the second sensing switch 216 is configured to detect the unfolding and folding states of the lamp arm 21 relative to the lamp holder 1, so as to control the switching state of the light-emitting device 2112 on the lamp arm 21; wherein, when the lamp arm 21 is folded in the first accommodating space 121, the light-emitting device 2112 is extinguished, and when the lamp arm 21 is unfolded outward from the first accommodating space 121, the light-emitting device 2112 is lit.

[0066] In this embodiment, the second induction switch 216 is used to detect whether the lamp arm 21 is folded in the first accommodation space 121 of the lamp holder 1, thereby controlling the switch state of the light emitting device 2112 on the lamp arm 21. When the second induction switch 216 detects that the lamp arm 21 is unfolded from the first accommodation space 121, the light emitting device 2112 is turned on to emit light; when the second induction switch 216 detects that the lamp arm 21 is folded into the first accommodation space 121, the light emitting device 2112 is turned off to extinguish the light emitting device 2112; thus, there is no need to additionally control the switch state of the light emitting device 2112, thereby improving the convenience of use of the desk lamp 100.

[0067] Optionally, the second induction switch 216 can be configured as a Hall sensor, and the second magnet 13 is correspondingly provided on the lamp holder 1, and the Hall element detects the folding state of the lamp arm 21 by sensing the change in the magnetic field strength around it. The second induction switch 216 can also be configured as a proximity switch, and when the lamp arm 21 is folded in the first accommodation space 121, the lamp holder 1 triggers the proximity switch. Alternatively, the second induction switch 216 can also be configured as a photoelectric second induction switch 216 or other induction devices.

[0068] Combined with reference Figure 1 and Figure 2 In one embodiment, the second induction switch 216 is configured as a Hall sensor, and the lamp holder 1 is provided with a second magnet 13 .

[0069] In this embodiment, a Hall sensor is used as the second induction switch 216, and the Hall sensor can generate an induction signal according to the change of the magnetic field strength around it. In specific applications, when the lamp arm 21 is folded into the first accommodating space 121, the distance between the Hall sensor and the second magnet 13 on the lamp holder 1 becomes smaller, and the magnetic field strength around the Hall sensor increases. When the magnetic field strength sensed by the Hall sensor reaches the preset magnetic field strength, it is determined that the lamp arm 21 has been folded into the first accommodating space 121, and the Hall sensor sends an induction signal to enable the control unit to turn off the light-emitting device 2112 of the lamp arm 21. When the lamp arm 21 is moved out of the first accommodating space 121, the Hall sensor is away from the second magnet 13, and the magnetic field strength around the Hall sensor is weakened, so that it is determined that the lamp arm 21 is moved out of the first accommodating space 121, and the Hall sensor sends an induction signal to enable the control unit to light up the light-emitting device 2112 on the lamp arm 21. Using the Hall sensor as the induction element, the detection of the folding and unfolding state of the lamp arm 21 is more sensitive, and the induction switch can be triggered without contacting the lamp holder 1, thereby reducing the risk of damage caused by contact between the induction switch and the lamp holder 1.

[0070] Optionally, the second magnet 13 may be built into the lamp holder 1 or embedded in the surface of the lamp holder 1 . For example, the second magnet 13 may be embedded in the groove wall of the first accommodating space 121 , which is not limited here.

[0071] In one implementation, the second induction switch 216 is configured as a proximity switch.

[0072] In this embodiment, the proximity switch is a position switch that can be triggered without direct mechanical contact with the lamp holder 1. When the lamp arm 21 drives the proximity switch to fold into the first accommodating space 121, and the distance between the sensing surface of the proximity switch and the lamp holder 1 meets the triggering distance, the proximity switch can respond without mechanical contact or applying any pressure, thereby sending a sensing signal to turn off the light-emitting device 2112 of the lamp arm 21; when the lamp arm 21 is moved out of the first accommodating space 121, the proximity switch moves away from the lamp holder 1, thereby judging that the lamp arm 21 is moved out of the first accommodating space 121, and then sending a sensing signal to enable the control unit to light up the light-emitting device 2112 on the lamp arm 21.

[0073] In one embodiment, the lamp holder 1 is provided with a first control unit, and the lamp arm 21 is provided with a second control unit, and the second control unit is electrically connected to the first control unit and the light emitting device 2112 respectively.

[0074] In this embodiment, the first control unit serves as the master control unit of the desk lamp 100, and the second control unit serves as the slave control unit. The second control unit can receive the control signal of the first control unit to control the switch state of the light emitting device 2112. Optionally, when an induction switch is provided on the lamp arm 21, the second control unit can also receive the electrical signal of the induction switch to control the switch state of the light emitting device 2112. With such a configuration, the switch state of the light emitting device 2112 can be precisely controlled, and the operating pressure of the first control unit can be reduced by correspondingly controlling the operating state of the light emitting device 2112 on the corresponding lamp arm 21 through the second slave control unit.

[0075] See also Figure 1 In one embodiment, two adjacent lamp arms 21 are hingedly connected via a damping shaft 22 .

[0076] This arrangement provides damping through the damping shaft 22 to fix the angle between two adjacent lamp arms 21 so that the lamp arms 21 are fixed at a desired position, thereby eliminating the need to set other fixing structures, simplifying the structure of the lamp assembly 2 and facilitating use.

[0077] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A desk lamp, characterized in that: It comprises a lamp holder and at least two groups of lamp assemblies, wherein the at least two groups of lamp assemblies are arranged along the circumference of the lamp holder; The lamp assembly has at least two lamp arms hinged in sequence, and the lamp arms are provided with light-emitting devices. At least two groups of lamp arms of the lamp assembly can be unfolded in different directions.

2. The desk lamp according to claim 1, characterized in that: The two lamp arms hinged to each other are respectively a first lamp arm and a second lamp arm, the first lamp arm is connected between the lamp holder and the second lamp arm, the first lamp arm is provided with a storage groove, and at least part of the structure of the second lamp arm can be folded in the storage groove.

3. The desk lamp according to claim 2, characterized in that: The second lamp arm is provided with a first induction switch, and the first induction switch is configured to detect the unfolding and folding state of the second lamp arm relative to the first lamp arm, so as to control the on / off state of the light emitting device on the second lamp arm; Wherein, when the second lamp arm is folded in the storage slot, the light-emitting device is turned off, and when the second lamp arm is extended outward from the storage slot, the light-emitting device is turned on.

4. The table lamp according to claim 3, characterized in that: The first induction switch is configured as a Hall sensor, and the first lamp arm is provided with a first magnet; And / or, the first induction switch is configured as a proximity switch; And / or, the first induction switch is arranged at an end of the second lamp arm away from the hinged position.

5. The desk lamp according to claim 1, characterized in that: The lamp arm comprises at least two sub-lamp arms arranged side by side, the arrangement direction of the two sub-lamp arms is parallel to the hinge axis of the lamp arm, and the sub-lamp arm is provided with the light-emitting device; And / or, the lamp arm includes a connecting body and the light-emitting device, the connecting body connects the lamp holder and at least one of the other lamp arms, the light-emitting device is arranged on one side of the connecting body and extends along the length direction of the lamp arm; when two adjacent lamp arms are unfolded to the same straight line, the light-emitting devices of the two lamp arms are located on the same side of the lamp assembly.

6. The desk lamp according to claim 1, characterized in that: The lamp holder is provided with a first accommodating space, the lamp assembly is hinged to the lamp holder, and at least one group of the lamp assembly can be accommodated in the first accommodating space.

7. The table lamp according to claim 6, characterized in that: A lamp arm hinged to the lamp holder is provided with a second induction switch, and the second induction switch is configured to detect the unfolding and folding state of the lamp arm relative to the lamp holder, so as to control the on / off state of the light emitting device on the lamp arm; Wherein, when the lamp arm is folded in the first accommodation space, the light-emitting device is turned off, and when the lamp arm is extended outward from the first accommodation space, the light-emitting device is turned on.

8. The table lamp according to claim 6, characterized in that: The lamp holder includes a base and a bracket, one end of the bracket is connected to the base, the lamp assembly is hinged to one end of the bracket away from the base, and the bracket is provided with the first accommodating space.

9. The table lamp according to claim 8, characterized in that: The base is provided with a second accommodating space, and the bracket is hinged to the base and can be folded into the second accommodating space.

10. The table lamp according to any one of claims 1 to 9, characterized in that: The lamp holder is provided with a first control unit, the lamp arm is provided with a second control unit, and the second control unit is electrically connected to the first control unit and the light emitting device respectively; And / or, two adjacent lamp arms are hinged via a damping shaft.

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