Lighting device

Abstract

The embodiment of the utility model provides a lighting device. The lighting device comprises a base, a first connecting piece and a lamp body. The base body is provided with a through hole, a first end of the first connecting piece is provided with a first rotating shaft, the first rotating shaft is clamped in the through hole and can rotate relative to the hole wall of the through hole, a second end of the first connecting piece is connected with the lamp body, and the second end deviates from the first end. The lighting device has the characteristic that the lamp body is relatively easily and rotatably connected with the seat body through the first connecting piece.

Description

Technical Field

[0001] The present application relates to the technical field of lighting device design, and in particular to a lighting device. Background Art

[0002] The use scenarios of lighting devices are very wide. Some lighting devices need to have the ability to adjust the irradiation direction to meet the use requirements of directional illumination. Taking the spotlight involved in home lighting as an example, the lamp body of the spotlight is connected to the base body through a rod-shaped connecting piece. Specifically, the connecting piece is rotatably connected to the base body through structures such as rotating connecting rods, washers and screws, so that the connecting piece can be rotated relative to the base body to adjust the irradiation direction of the lamp body. This solution of connecting through structures such as rotating connecting rods, washers and screws has the problems of complex structure and low assembly efficiency. Utility Model Content

[0003] The embodiment of the present application provides a lighting device to solve the problem of low assembly efficiency of lighting devices in the related art.

[0004] The lighting device provided in the embodiment of the present application includes: a base, a first connecting member and a lamp body; the base is provided with a through hole, the first end of the first connecting member is provided with a first rotating shaft, the first rotating shaft is clamped in the through hole, and the first rotating shaft can rotate relative to the hole wall of the through hole, the second end of the first connecting member is connected to the lamp body, wherein the second end is away from the first end.

[0005] Optionally, a first protrusion and a second protrusion are respectively provided at two ends of the first rotating shaft, the first rotating shaft is sleeved in the through hole, and two end surfaces of the through hole are sandwiched between the first protrusion and the second protrusion.

[0006] Optionally, a first notch is provided at the protruding end of the first rotating shaft, and the first notch extends from the protruding end toward the root of the first rotating shaft.

[0007] Optionally, the extended end of the first rotating shaft is provided with a plug-in guide portion, and in a direction from the root of the first rotating shaft toward the extended end, the cross-sectional area of ​​the outer wall of the plug-in guide portion gradually decreases.

[0008] Optionally, the first connecting member is provided with a third protrusion, and the seat body is provided with a fourth protrusion. When the first side surface of the third protrusion abuts against the fourth protrusion, the first rotating shaft rotates by a preset angle in a direction so that the first side surface and the fourth protrusion are separated from each other, and the second side surface of the third protrusion abuts against the fourth protrusion, wherein the second side surface is separated from the first side surface.

[0009] Optionally, one of the seat body and the first connecting member is provided with an annular angle mark, and the other of the seat body and the first connecting member is provided with an indicator mark, the annular angle mark is distributed around the axis of the first rotating shaft, and the indicator mark points to the annular angle mark.

[0010] Optionally, the lamp body includes a second connecting member, the second connecting member is provided with a shaft groove, the second end is provided with a second shaft, the axis of the second shaft intersects or is not aligned with the axis of the first shaft, and the second shaft is clamped in the shaft groove.

[0011] Optionally, the shaft groove includes a first groove and a second groove arranged at intervals, the second shaft includes a first convex shaft and a second convex shaft arranged on opposite sides of the first connecting member, the first convex shaft is clamped in the first groove, and the second convex shaft is clamped in the second groove.

[0012] Optionally, the first protrusion shaft is provided with a second notch, the second notch extends from an end of the first protrusion shaft facing away from the second protrusion shaft toward the second protrusion shaft, and the notch of the first groove gradually increases from the inner side of the first groove to the outer side; the second protrusion shaft is provided with a third notch, the third notch extends from an end of the second protrusion shaft facing away from the first protrusion shaft toward the first protrusion shaft, and the notch of the second groove gradually increases from the inner side of the second groove to the outer side.

[0013] Optionally, the first connecting member is provided with a threading channel extending from the second end to the first end, and the power supply cable of the lamp body is passed through the threading channel and extends into the base body.

[0014] Optionally, the lighting device is a track light.

[0015] Optionally, the seat body is provided with an electrical connector, the power supply cable is electrically connected to the electrical connector, and the electrical connector is used to be electrically connected to a power supply track.

[0016] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0017] In the embodiment of the present application, during the process of assembling the lighting device, the first end of the first connecting member can be inserted into the through hole of the base body, so that the first rotating shaft and the hole wall of the through hole can be rotated and matched. In this way, the lamp body connected to the first connecting member can be rotated relative to the base body by rotating the first connecting member. In the process of assembling the first connecting member and the base body of the lighting device provided by the embodiment of the present application, it is only necessary to insert the first end of the first connecting member into the through hole of the base body, and the assembly process is simple, thereby improving the assembly efficiency of the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A schematic diagram of a lighting device provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of a lighting device provided in an embodiment of the present application from another angle;

[0021] Figure 3 A schematic diagram of a seat provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of a seat body provided in an embodiment of the present application from another angle;

[0023] Figure 5 A schematic diagram of a first connecting member provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of a first connecting member provided in an embodiment of the present application from another angle;

[0025] Figure 7 A schematic diagram of a second connecting member provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 100-lighting device; 110-base; 111-perforation; 112-fourth protrusion; 113-annular angle mark; 120-first connecting member; 120a-first end; 120b-second end; 121-first rotating shaft; 1211-first protrusion; 1212-second protrusion; 1213-first notch; 1214-plug-in guide; 1241a-second notch; 1241b-third notch; 122-third protrusion; 123-indicator mark; 124-second rotating shaft; 124a-first convex shaft; 124b-second convex shaft; 125-threading channel; 130-lamp body; 131-second connecting member; 1311-rotating shaft groove; 1311a-first groove; 1311b-second groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0031] Furthermore, it is required that the present application be understood not only by the actual terms used but also by the meanings connoted by each term.

[0032] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment provides a lighting device. Figures 1 to 7 The lighting device 100 provided in the embodiment of the present application includes: a base 110 , a first connecting member 120 and a lamp body 130 .

[0034] Exemplarily, the lighting device 100 can be a track light. A track light is also called a guide rail light. As the name implies, a track light is a light installed on a track-like surface, and the illumination angle can be adjusted at will. It is generally used as a spotlight in places where key lighting is required. Track lights generally need to be installed on a matching track. The two sides of the track contain conductive metal strips, and the joints of the track lights are provided with conductive copper sheets. During installation, the conductive copper sheets on the track lights contact the conductive metal strips inside the track, so that the track lights can be powered on, thereby lighting up the track lights. For example, the lighting device 100 can specifically be a track spotlight. The lamp body 130 includes a light-emitting element. For example, the light-emitting element can be a light bulb or a light-emitting diode (LED).

[0035] refer to Figure 3 The seat body 110 is provided with a through hole 111. Figure 5 , the first end 120a of the first connecting member 120 is provided with a first rotating shaft 121. Figure 1 The first rotating shaft 121 is clamped in the through hole 111, and the first rotating shaft 121 can rotate relative to the hole wall of the through hole 111. The second end 120b of the first connecting member 120 is connected to the lamp body 130, wherein the second end 120b is away from the first end 120a.

[0036] In this way, during the process of assembling the lighting device 100, the first end 120a of the first connecting member 120 can be inserted into the through hole 111 of the base 110, so that the first rotating shaft 121 can be rotationally matched with the hole wall of the through hole 111. In this way, the lamp body 130 connected to the first connecting member 120 can be rotated relative to the base 110 by rotating the first connecting member 120. In the lighting device 100 provided in the embodiment of the present application, during the process of assembling the first connecting member 120 and the base 110, it is only necessary to insert the first end 120a of the first connecting member 120 into the through hole 111 of the base 110, and the assembly process is simple, thereby improving the assembly efficiency of the lighting device 100.

[0037] refer to Figure 5 and Figure 6 In some embodiments, the first rotating shaft 121 is provided with a first protrusion 1211 and a second protrusion 1212 at both ends. The first rotating shaft 121 is sleeved in the through hole 111, and the two end surfaces of the through hole 111 are sandwiched between the first protrusion 1211 and the second protrusion 1212. In this way, the first connecting member 120 can be prevented from being separated from the base body 110 due to an accident by sandwiching the two end surfaces of the through hole 111 between the first protrusion 1211 and the second protrusion 1212.

[0038] refer to Figure 5 and Figure 6 In some embodiments, the protruding end of the first rotating shaft 121 is provided with a first notch 1213, and the first notch 1213 extends from the protruding end toward the root of the first rotating shaft 121. In this way, by providing the first notch 1213, when the first end 120a of the first connecting member 120 is inserted into the through hole 111 of the seat body 110, the first end 120a of the first connecting member 120 can shrink and deform toward the axis of the first rotating shaft 121, so that the first rotating shaft 121 of the first connecting member 120 is conveniently engaged with the through hole 111 of the seat body 110.

[0039] It should be noted that the root of the first rotating shaft 121 refers to the portion where the first rotating shaft 121 is connected to the main body of the first connecting member 120, and the extended end of the first rotating shaft 121 is separated from the root of the first rotating shaft 121. Of course, those skilled in the art can also understand the "extended end of the first rotating shaft 121" and the "root of the first rotating shaft 121" according to common knowledge in the art, and will not be explained one by one in the following.

[0040] Exemplarily, the first rotating shaft 121 is a hollow structure. The first rotating shaft 121 is provided with a perforation along its own axial direction. In other words, the first rotating shaft 121 is not a solid structure, so that the ability of the first rotating shaft 121 to undergo elastic deformation can be improved by making the first rotating shaft 121 a hollow structure. It should be noted that the first rotating shaft 121 is made of a material with elastic deformation ability. For example, the first rotating shaft 121 is made of engineering plastics, or the first rotating shaft 121 is made of metal material. In addition, the overall material of the first connecting member 120 can be consistent with the material of the first rotating shaft 121. For example, the first connecting member 120 as a whole can be made of plastic or metal material.

[0041] Exemplarily, the number of the first notches 1213 may be one or at least two. Exemplarily, the number of the first notches 1213 may be four. The four first notches 1213 are evenly distributed along the circumference of the first rotating shaft 121.

[0042] refer to Figure 5 In some embodiments, a plug-in guide portion 1214 is provided at the protruding end of the first rotating shaft 121. In the direction from the root of the first rotating shaft 121 to the protruding end of the first rotating shaft 121, the cross-sectional area of ​​the outer wall of the plug-in guide portion 1214 gradually decreases. Exemplarily, the plug-in guide portion 1214 is a guiding inclined surface provided at the protruding end of the first rotating shaft 121. Thus, by providing the plug-in guide portion 1214, the first rotating shaft 121 can be guided to be inserted into the through hole 111 of the seat body 110, thereby improving the convenience of inserting the first rotating shaft 121 into the through hole 111.

[0043] refer to Figure 5 In some embodiments, the first connecting member 120 is provided with a third protrusion 122. Figure 3 The seat body 110 is provided with a fourth protrusion 112. In the embodiment of the present application, when the first side surface of the third protrusion 122 abuts against the fourth protrusion 112, the first rotating shaft 121 rotates by a preset angle in a direction in which the first side surface and the fourth protrusion 112 are separated from each other, and the second side surface of the third protrusion 122 abuts against the fourth protrusion 112, wherein the second side surface is separated from the first side surface.

[0044] In other words, for example, when the first connector 120 rotates forward by a certain angle, the third protrusion 122 on the first connector 120 can abut against the fourth protrusion 112 on the seat body 110, and when the first connector 120 rotates reversely by a certain angle, the third protrusion 122 on the first connector 120 abuts against the fourth protrusion 112 on the seat body 110. In this way, the maximum angle of the circumferential rotation of the first connector 120 can be limited by the cooperation between the third protrusion 122 and the fourth protrusion 112, so as to prevent the first connector 120 from rotating too many times and causing damage to the power supply cable passing through the first connector 120.

[0045] refer to Figure 1 , Figure 3 and Figure 6 In some embodiments, one of the base 110 and the first connecting member 120 is provided with an annular angle mark 113, and the other of the base 110 and the first connecting member 120 is provided with an indicator mark 123. The annular angle mark 113 is distributed around the axis of the first rotating shaft 121, and the indicator mark 123 points to the annular angle mark 113. Exemplarily, the annular angle mark 113 is a scale mark from 0 to 360 degrees, and the indicator mark 123 is a convex point pointing to a scale area of ​​the annular angle mark 113. In this way, the rotation angle of the first connecting member 120 relative to the base 110 can be determined based on the indicator mark 123 and the annular angle mark 113, so as to facilitate the adjustment of the irradiation direction of the lamp body 130 based on this.

[0046] In some embodiments, the first rotating shaft 121 is frictionally matched with the hole wall of the through hole 111 of the base 110, so that the first rotating shaft 121 can produce a damping effect during the rotation of the first rotating shaft 121 relative to the hole wall of the through hole 111 by means of frictional matching between the first rotating shaft 121 and the hole wall of the through hole 111, thereby enabling the lamp body 130 and the first connecting member 120 to maintain an adjusted angle relative to the base 110. Exemplarily, the first rotating shaft 121 can be frictionally matched with the hole wall of the through hole 111 of the base 110 by means of interference matching between the first rotating shaft 121 and the hole wall of the through hole 111 of the base 110.

[0047] refer to Figure 1 , Figure 2 , Figure 6 and Figure 7 In some embodiments, the lamp body 130 includes a second connecting member 131. Exemplarily, the lamp body 130 also includes a shell, and the second connecting member 131 may be a back cover of the shell. The back cover and the shell may enclose a receiving cavity, and the light-emitting element of the lamp body 130 is disposed in the receiving cavity.

[0048] Specifically, the second connecting member 131 is provided with a rotating shaft groove 1311. The second end 120b of the first connecting member 120 is provided with a second rotating shaft 124. The axis of the second rotating shaft 124 intersects or is not in the same plane as the axis of the first rotating shaft 121. In other words, the axis of the second rotating shaft 124 is not colinear with the axis of the first rotating shaft 121, and is not parallel. The second rotating shaft 124 is clamped in the rotating shaft groove 1311.

[0049] Combination Figure 2 For example, the axis of the second rotating shaft 124 is perpendicular to the axis of the first rotating shaft 121. In this way, the pitch angle of the lamp body 130 can be adjusted by driving the lamp body 130 to rotate around the axis of the second rotating shaft 124. Furthermore, the lamp body 130 can be adjusted to a suitable orientation by driving the lamp body 130 to rotate around the axis of the first rotating shaft 121.

[0050] refer to Figure 6 The second rotating shaft 124 includes a first protruding shaft 124a and a second protruding shaft 124b which are arranged on opposite sides of the first connecting member 120. Figure 7 In some embodiments, the shaft groove 1311 includes a first groove 1311a and a second groove 1311b that are spaced apart. Figure 2 The first protruding shaft 124a is clamped in the first groove 1311a, and the second protruding shaft 124b is clamped in the second groove 1311b. In this way, the connection stability between the first connecting member 120 and the lamp body 130 can be improved by respectively providing the first protruding shaft 124a and the second protruding shaft 124b.

[0051] refer to Figure 6 In some embodiments, the first protruding shaft 124a is provided with a second notch 1241a. The second notch 1241a extends from the end of the first protruding shaft 124a away from the second protruding shaft 124b toward the second protruding shaft 124b. In this way, by providing the second notch 1241a, when the first protruding shaft 124a is inserted into the first groove 1311a, the first protruding shaft 124a can shrink and deform toward the axis of the first protruding shaft 124a, thereby facilitating the first protruding shaft 124a to be inserted into the first groove 1311a.

[0052] refer to Figure 6 In some embodiments, the second convex shaft 124b is provided with a third notch 1241b. The third notch 1241b extends from the end of the second convex shaft 124b away from the first convex shaft 124a toward the first convex shaft 124a. In this way, by providing the third notch 1241b, when the second convex shaft 124b is inserted into the second groove 1311b, the second convex shaft 124b can shrink and deform toward the axis of the second convex shaft 124b, thereby facilitating the second convex shaft 124b to be inserted into the second groove 1311b.

[0053] refer to Figure 7 In some embodiments, the notch of the first groove 1311a gradually increases from the inside of the first groove 1311a to the outside opening. In this way, it is easy to guide the first protruding shaft 124a to be clamped in the first groove 1311a. The notch of the second groove 1311b gradually increases from the inside of the second groove 1311b to the outside opening. In this way, it is easy to guide the second protruding shaft 124b to be clamped in the second groove 1311b.

[0054] It should also be noted that, in some embodiments, the first groove 1311a is open, the inner wall of the first groove 1311a is a first arc surface, and the center angle of the first arc surface is greater than 180 degrees. In this way, the first protruding shaft 124a can be prevented from accidentally popping out of the first groove 1311a by making the center angle of the first arc surface greater than 180 degrees.

[0055] In some embodiments, the second groove 1311b is open, the inner wall of the second groove 1311b is a second arc surface, and the center angle of the second arc surface is greater than 180 degrees. In this way, the second protruding shaft 124b can be prevented from accidentally popping out of the second groove 1311b by making the center angle of the second arc surface greater than 180 degrees.

[0056] refer to Figure 6 In some embodiments, the first connector 120 is provided with a threading channel 125 extending from the second end 120b to the first end 120a. The power supply cable of the lamp body 130 is passed through the threading channel 125 and extends into the base body 110. In other words, the power supply cable of the lamp body 130 passes through the first connector 120 and extends into the base body 110.

[0057] For example, in the case where the lighting device 100 is a track spotlight, the base 110 is provided with an electrical connector, and the electrical connector is electrically connected to the power supply rail; the power supply cable of the lamp body 130 is electrically connected to the electrical connector. The electrical connector is used to electrically connect to the power supply rail. Thus, the lamp body 130 can draw electricity from the power supply rail via the power supply cable and the electrical connector. Those skilled in the art also refer to the electrical connector in the base 110 as a power supply. It should be noted that the power supply method of the track lamp 100 can also refer to the prior art, and therefore, the power supply method of the track lamp 100 will no longer be described in detail in the embodiment of the present application.

[0058] In addition, illustratively, a power supply track (not shown) can be installed on the ceiling. The electrical connector of the base 110 can be electrically connected to the power supply track, and the base 110 is provided with a connecting mechanism, which is used to connect to the power supply track, so that the lighting device 100 can be connected to the power supply track via the connecting mechanism. Figure 1 and Figure 2After the lighting device 100 is installed in place, the base 110 can be located above the first connecting member 120, the first connecting member 120 extends vertically, and the first rotating shaft 121 also extends vertically. The lamp body 130 is rotatably connected to the lower end of the first connecting member 120 around the second rotating shaft 124. Therefore, the lamp body 130 can be rotated horizontally by driving the first connecting member 120 to rotate around the axis of the first rotating shaft 121; the pitch angle of the lamp body 130 can be adjusted by driving the lamp body 130 to rotate around the second rotating shaft 124. In this way, the effect of adjusting the irradiation direction of the lamp body 130 as needed can be achieved.

[0059] 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.

[0060] Although the embodiments of the present application have been shown and described, it will be understood 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 embodiments of the present application, and the scope of the embodiments of the present application is defined by the appended claims and their equivalents.

Claims

1. A lighting device, characterized in that: include: A base body (110), a first connecting member (120) and a lamp body (130); The base body (110) is provided with a through hole (111); the first end (120a) of the first connecting member (120) is provided with a first rotating shaft (121); the first rotating shaft (121) is clamped in the through hole (111), and the first rotating shaft (121) can rotate relative to the hole wall of the through hole (111); the second end (120b) of the first connecting member (120) is connected to the lamp body (130), wherein the second end (120b) is opposite to the first end (120a).

2. The lighting device according to claim 1, characterized in that: The first rotating shaft (121) is provided with a first protrusion (1211) and a second protrusion (1212) at both ends respectively; the first rotating shaft (121) is sleeved in the through hole (111); and the two end surfaces of the through hole (111) are sandwiched between the first protrusion (1211) and the second protrusion (1212).

3. The lighting device according to claim 1, characterized in that: The protruding end of the first rotating shaft (121) is provided with a first notch (1213), and the first notch (1213) extends from the protruding end toward the root of the first rotating shaft (121).

4. The lighting device according to claim 1, characterized in that: The protruding end of the first rotating shaft (121) is provided with a plug-in guide portion (1214), and in the direction from the root of the first rotating shaft (121) toward the protruding end, the cross-sectional area of ​​the outer wall of the plug-in guide portion (1214) gradually decreases.

5. The lighting device according to claim 1, characterized in that: The first connecting member (120) is provided with a third protrusion (122), and the base body (110) is provided with a fourth protrusion (112). When the first side surface of the third protrusion (122) abuts against the fourth protrusion (112), the first rotating shaft (121) rotates by a preset angle in a direction so that the first side surface and the fourth protrusion (112) are separated from each other, and the second side surface of the third protrusion (122) abuts against the fourth protrusion (112), wherein the second side surface is separated from the first side surface.

6. The lighting device according to claim 1, characterized in that: One of the base body (110) and the first connecting member (120) is provided with an annular angle mark (113), and the other of the base body (110) and the first connecting member (120) is provided with an indication mark (123), wherein the annular angle mark (113) is distributed around the axis of the first rotating shaft (121), and the indication mark (123) points to the annular angle mark (113).

7. The lighting device according to claim 1, characterized in that: The lamp body (130) comprises a second connecting member (131), the second connecting member (131) is provided with a rotating shaft groove (1311), the second end (120b) is provided with a second rotating shaft (124), the axis of the second rotating shaft (124) intersects or is not aligned with the axis of the first rotating shaft (121), and the second rotating shaft (124) is clamped in the rotating shaft groove (1311).

8. The lighting device according to claim 7, characterized in that: The rotating shaft groove (1311) includes a first groove (1311a) and a second groove (1311b) which are arranged at intervals. The second rotating shaft (124) includes a first convex shaft (124a) and a second convex shaft (124b) which are arranged on two opposite sides of the first connecting member (120). The first convex shaft (124a) is clamped in the first groove (1311a), and the second convex shaft (124b) is clamped in the second groove (1311b).

9. The lighting device according to claim 8, characterized in that: The first convex shaft (124a) is provided with a second notch (1241a), the second notch (1241a) extends from an end of the first convex shaft (124a) away from the second convex shaft (124b) toward the second convex shaft (124b), and the notch of the first groove (1311a) gradually increases from the inside of the first groove (1311a) toward the outside; The second convex shaft (124b) is provided with a third notch (1241b), and the third notch (1241b) extends from the end of the second convex shaft (124b) away from the first convex shaft (124a) toward the first convex shaft (124a), and the notch of the second groove (1311b) gradually increases from the inner side of the second groove (1311b) toward the outer side.

10. The lighting device according to claim 1, characterized in that: The first connecting member (120) is provided with a threading channel (125) extending from the second end (120b) to the first end (120a); a power supply cable of the lamp body (130) is passed through the threading channel (125) and extends into the base body (110); The lighting device is a track light, the base (110) is provided with an electrical connector, the power supply cable is electrically connected to the electrical connector, and the electrical connector is used to be electrically connected to a power supply track.

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