Lamp

Abstract

The utility model discloses a lamp and relates to the technical field of lighting lamps. The LED lamp comprises a lamp barrel, a fixing assembly, a lens assembly, a light-emitting assembly, a first magnetic attraction piece and a second magnetic attraction piece. Wherein a cavity is formed in the lamp tube; the fixing assembly is fixedly arranged in the cavity; one end of the lens assembly is assembled in the fixing assembly in a reciprocating motion mode and used for controlling light. The light-emitting assembly is fixedly arranged in the cavity and located in the lens assembly; the first magnetic attraction part is arranged on the lens assembly and is far away from the peripheral side of one end of the fixing assembly; the second magnetic attraction part is used for being matched with the first magnetic attraction part, and the second magnetic attraction part is detachably assembled on the peripheral wall of the lamp barrel; the second magnetic attraction piece is moved to drive the first magnetic attraction piece to move, and then the lens assembly is driven to reciprocate relative to the fixing assembly so as to adjust the beam angle of the light-emitting assembly. By adopting the technical scheme, the device has the advantages of simple structure and convenience and rapidness in beam angle adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting lamps, in particular to a lamp. Background Art

[0002] The beam angle, that is, the angle between the two directions of light intensity, is expressed on the illuminated wall as the size of the light spot and the light intensity. In actual applications, the choice of beam angle needs to be determined according to the lighting needs and the scene. For example, in a lighting scene where a specific area or object needs to be highlighted, the beam angle of the lamp can be adjusted to a smaller angle; in a scene where the entire wall or floor needs to be illuminated, the beam angle of the lamp can be adjusted to a larger angle. Some existing lamps cannot adjust the beam angle, causing inconvenience to users. Other lamps can adjust the beam angle, but their structures are complex and the operation is cumbersome. Some of them adjust the beam angle by rotating the part of the lamp tube with a lens inside relative to the other parts of the lamp tube with a light source inside to extend or retract the lamp tube. This has the problem that the lamp tube is not a complete whole, and it is easy for water to enter the lamp during the adjustment process, resulting in poor waterproofing effect or impurities such as dust to be stuck in the gap between the part of the lamp tube with a lens inside and the other parts of the lamp tube, causing damage to the lamp. Utility Model Content

[0003] The purpose of the present invention is to provide a lamp that solves at least one of the above technical problems and has the advantages of simple structure and convenient and quick adjustment of the beam angle.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a lamp, comprising:

[0005] A lamp tube having a cavity therein;

[0006] A fixing component, fixedly disposed in the cavity;

[0007] a lens assembly, one end of which is reciprocally movable and assembled in the fixed assembly for controlling light;

[0008] a light-emitting assembly, fixedly disposed in the cavity and located inside the lens assembly;

[0009] A first magnetic member is provided on the lens assembly and is located away from the outer peripheral side of one end of the fixing assembly; and

[0010] a second magnetic member, used to cooperate with the first magnetic member, and the second magnetic member can be detachably assembled on the outer peripheral wall of the lamp tube;

[0011] The second magnetic member is moved to drive the first magnetic member to move, thereby driving the lens assembly to move back and forth relative to the fixed assembly to adjust the beam angle of the light-emitting assembly.

[0012] The utility model is further provided with an internal thread on the inner peripheral wall of the fixing component, and an external thread on the outer peripheral wall of the lens component close to one end of the fixing component, and the internal thread cooperates with the external thread to enable the lens component to rotate and move back and forth relative to the fixing component.

[0013] The utility model is further provided with the lens assembly comprising: a scale ring with the first magnetic member detachably mounted on the outer peripheral wall thereof, a lens cover having one end clamped to the inner side of the scale ring and the outer peripheral wall thereof provided with the external thread at the other end thereof, and a lens having one end clamped between the inner side of the scale ring and the lens cover clamped to one end of the inner side of the scale ring and the other end placed in the lens cover;

[0014] The second magnetic member is rotated to drive the first magnetic member to rotate, thereby driving the scale ring to rotate, and finally driving the lens cover and the lens to rotate relative to the fixed assembly to perform reciprocating movement.

[0015] The present invention is further provided with beam angle numbers arranged around a surface of the scale ring away from the fixed component so that a user can adjust the beam angle of the light-emitting component.

[0016] The present invention further provides that the second magnetic attraction component includes: an arc-shaped magnetic attraction piece and a magnetic attraction column arranged on the side of the magnetic attraction piece facing the outer peripheral wall of the lamp tube and extending downward; the magnetic attraction column is provided with one or more.

[0017] The present invention is further provided with that the surface of the magnetic column abutting against the outer peripheral wall of the lamp tube is an arc-shaped surface so as to fit the outer peripheral wall of the lamp tube.

[0018] The utility model is further provided that the lamp also includes: a light-transmitting cover plate assembled at one end of the lamp tube; the light-transmitting cover plate is used to cover the end of the lamp tube provided with the lens assembly to prevent the lens assembly from falling out.

[0019] The utility model is further provided with an annular film between the peripheral side of one end of the light-transmitting cover extending into the lamp tube and the inner peripheral wall of the lamp tube, so as to fix the light-transmitting cover plate on one end of the lamp tube.

[0020] The present invention further provides that a blocking ring protruding toward the central axis of the fixing component is provided at one end of the fixing component away from the light-transmitting cover plate to prevent the lens assembly from falling out in a direction away from the light-transmitting cover plate.

[0021] The present invention is further provided that the lamp further includes: a base and a rotating shaft with one end connected to the lamp tube and the other end connected to the base, so that the lamp tube can be rotated upward or downward relative to the base.

[0022] After adopting the above technical solution, the beneficial effect of the utility model is as follows: In the utility model, the user only needs to move the second magnetic member on the outer wall of the lamp tube according to their own needs. Under the magnetic force, the first magnetic member also moves accordingly, thereby driving the lens assembly to reciprocate relative to the fixed assembly. Since the position of the light-emitting assembly is fixed, the distance between the lens assembly and the light-emitting assembly also changes during the reciprocating movement of the lens assembly, thereby achieving the purpose of adjusting the beam angle of the light-emitting assembly. The overall operation is simple and fast, which improves the convenience of users in adjusting the beam angle of the light-emitting assembly. In addition, the overall structure of the lamp is simple, which is easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 these drawings without paying any creative labor.

[0024] Figure 1 This is a schematic diagram of the structure of the lamp from the front view;

[0025] Figure 2 This is a structural diagram of the lamp from another perspective;

[0026] Figure 3 This is a schematic diagram of the structure of the lamp with the lamp tube hidden and the second magnetic component removed;

[0027] Figure 4 This is a schematic diagram of the exploded structure of this lamp;

[0028] Figure 5 is a structural diagram of the first magnetic component, the light-emitting component, the fixing component and the lens component;

[0029] Figure 6 is a schematic structural diagram of the lens assembly and the first magnetic attraction component;

[0030] Figure 7 is a structural diagram of a fixing assembly, a first magnetic attraction member, and a lens assembly;

[0031] Figure 8 Schematic diagram of the structure of the second magnetic component.

[0032] Explanation of the accompanying drawings: 100, lamp tube; 110, cavity; 200, fixing assembly; 210, internal thread; 220, blocking ring; 230, first fixing part; 240, second fixing part; 300, lens assembly; 310, scale ring; 320, lens cover; 321, external thread; 330, lens; 400, light-emitting assembly; 410, light source support frame; 420, light source part; 510, first magnetic part; 520, second magnetic part; 521, magnetic sheet; 522, magnetic column; 522a, curved surface; 610, light-transmitting cover; 620, back cover; 700, annular film; 800, base; 900, rotating shaft. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings.

[0034] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0035] This embodiment relates to a lamp, referring to Figures 1-4, including: a lamp tube 100, a fixing component 200, a lens component 300, a light-emitting component 400, a first magnetic component 510 and a second magnetic component 520. Among them, a cavity 110 is provided in the lamp tube 100, and the lamp tube 100 serves as a shell to protect other components; the fixing component 200 is fixedly arranged in the cavity 110; one end of the lens component 300 can be reciprocated and assembled in the fixing component 200 for controlling light. The light-emitting component 400 is fixedly arranged in the cavity 110 and is located inside the lens component 300; the irradiation direction of the light-emitting component 400 is toward the side away from the fixing component 200. The first magnetic component 510 is arranged on the lens component 300 and is away from the outer peripheral side of one end of the fixing component 200; the second magnetic component 520 is used to cooperate with the first magnetic component 510. The second magnetic component 520 can be detachably assembled on the outer peripheral wall of the lamp tube 100 for easy storage. Move the second magnetic member 520 to drive the movement of the first magnetic member 510, thereby driving the lens assembly 300 to move back and forth relative to the fixed assembly 200 to adjust the beam angle of the light-emitting assembly 400. Specifically, the user can move the second magnetic member 520 according to their own needs. Under the magnetic force, the first magnetic member 510 also moves, thereby driving the lens assembly 300 to move back and forth relative to the fixed assembly 200. Since the position of the light-emitting assembly 400 is fixed in the cavity 110 and is located inside the lens assembly 300, the distance between the lens assembly 300 and the light-emitting assembly 400 also changes during the reciprocating movement of the lens assembly 300, thereby achieving the purpose of adjusting the beam angle of the light-emitting assembly 400. The overall operation process is simple, convenient and fast, and the overall structure of the lamp is simple and easy to disassemble and assemble. In addition, unlike some lamps on the market that have a two-part tube, one containing a lens and the other containing a light source, the lens portion reciprocates relative to the light source portion to adjust the beam angle, similar to the focusing method of a camera. These lamp tube designs are not complete and seamless, resulting in water ingress and poor waterproofing. However, the lamp tube 100 of this lamp is a complete, seamless tube, preventing water from entering the outer periphery.

[0036] It should be noted that the first magnetic member 510 and the second magnetic member 520 can both be magnets, or one can be made of magnetic material and the other of metal material. It is sufficient that the first magnetic member 510 and the second magnetic member 520 can generate mutual attraction, including that the attraction generated is magnetic attraction. In addition, the first magnetic member 510 should be considered to include the following three situations: the first magnetic member 510 is a component that is specially provided on the lens assembly 300, the first magnetic member 510 itself is any component in the lens assembly 300, such as the scale ring 310, the lens cover 320 or the lens 330 mentioned below, and the first magnetic member 510 is the lens assembly 300 itself. In this embodiment, the first magnetic member 510 and the second magnetic member 520 are both magnets that attract each other; and the first magnetic member 510 is a component that is specially provided on the lens assembly 300.

[0037] In this embodiment, referring to Figure 4-Figure 5 The fixing assembly 200 has an internal thread 210 on its inner circumferential wall, and the lens assembly 300 has an external thread 321 on its outer circumferential wall near one end of the fixing assembly 200. The internal thread 210 and the external thread 321 cooperate to allow the lens assembly 300 to rotate and reciprocate relative to the fixing assembly 200. Specifically, the internal thread 210 and the external thread 321 cooperate to allow the lens assembly 300 to reciprocate relative to the fixing assembly 200 along the transverse central axis of the lamp tube 100, thereby adjusting the distance between the lens assembly 300 and the light-emitting assembly 400. In other embodiments, a retaining ring may be further provided on the outer circumferential wall of the lens assembly 300 near one end of the fixing assembly 200, with a groove provided on the retaining ring for engagement with the internal thread 210.

[0038] Furthermore, the lens assembly 300 includes a scale ring 310, a lens cover 320, and a lens 330. A first magnetic member 510 is detachably mounted on the outer circumference of the scale ring 310, and the scale ring 310 is hollow. One end of the lens cover 320 is clamped to the inside of the scale ring 310, and the other end of the outer circumference is provided with an external thread 321. The lens cover 320 protects the lens 330 from scratches. One end of the lens 330 is clamped between the inside of the scale ring 310 and the end of the lens cover 320 clamped to the inside of the scale ring 310, and the other end is placed within the lens cover 320. When the user adjusts the beam angle of the lamp, the second magnetic component 520 is rotated to drive the first magnetic component 510 to rotate accordingly. Since the first magnetic component 510 is assembled on the scale ring 310, the first magnetic component 510 also drives the scale ring 310 to rotate, and finally drives the lens cover 320 and the lens 330 to rotate relative to the fixed component 200 to perform reciprocating movement.

[0039] In this embodiment, referring to Figure 5-Figure 6, the scale ring 310 is provided with a beam angle number around the side away from the fixed component 200, so that the user can adjust the beam angle of the light emitting component 400. Specifically, the scale ring 310 is provided with a beam angle number around the side facing the light irradiation direction of the light emitting component 400. The user can adjust the deviation angle of the second magnetic component 520 according to the beam angle number on the scale ring 310, and then adjust the distance between the lens 330 and the light emitting component 400 to change the beam angle of the light emitting component 400. In this embodiment, the beam angle number ranges from 15 degrees to 36 degrees, and is evenly arranged in a clockwise direction at 15 degrees, 16 degrees, 17 degrees, 18 degrees, 19 degrees, 20 degrees, 21 degrees, 22 degrees, 23 degrees, 24 degrees, 25 degrees, 26 degrees, 27 degrees, 28 degrees, 29 degrees, 30 degrees, 31 degrees, 32 degrees, 33 degrees, 34 degrees, 35 degrees, and 36 degrees. Examples are given here to help you understand the application scenarios corresponding to specific beam angles. When the beam angle of the light-emitting component 400 is 15 degrees, it is suitable for providing accent lighting for small ornaments and decorations; when the beam angle of the light-emitting component 400 is 24 degrees, it is suitable for providing accent lighting for work surfaces such as coffee tables and desktops or illuminating walls to form a clear hill-like small light spot; when the beam angle of the light-emitting component 400 is 30 degrees, it is suitable for both accent lighting and wall washing lighting; when the beam angle of the light-emitting component 400 is 36 degrees, it is suitable for illuminating walls to form a soft large light arc effect or provide corridor lighting.

[0040] In other embodiments, the beam angle range can also be set to 20 degrees-50 degrees.

[0041] In this embodiment, referring to Figure 4 and Figure 6 , multiple first magnetic members 510 are provided, arranged at intervals. Specifically, there are three first magnetic members 510, and the three first magnetic members 510 are arranged circumferentially on the outer circumference of the scale ring 310. This makes it easy for the user to place the second magnetic member 520 from any location on the outer circumference of the lamp tube 100 corresponding to the outer circumference of the scale ring 310, and there will always be a first magnetic member 510 to cooperate with it, thus facilitating user operation.

[0042] In this embodiment, referring to Figure 8The second magnetic part 520 is arc-shaped. The arc-shaped setting ensures the aesthetic appearance of the overall lamp, while better fitting the cylindrical shape of the lamp tube 100, preventing the second magnetic part 520 from accidentally falling off during rotation due to not being able to fit the outer wall of the lamp tube 100 well. Furthermore, the second magnetic part 520 includes: an arc-shaped magnetic sheet 521 and a magnetic column 522 arranged on the side of the magnetic sheet 521 facing the outer wall of the lamp tube 100 and extending downward. The magnetic sheet 521 is convenient for users to grasp. There are one or more magnetic columns 522. In this embodiment, there are multiple magnetic columns 522, specifically three. The magnetic columns 522 are spaced apart to ensure that there is sufficient magnetic force to drive the first magnetic part 510 to rotate, while reducing the overall weight of the second magnetic part 520, further reducing the overall weight of the lamp. The side of the magnetic post 522 that contacts the outer wall of the lamp tube 100 is an arcuate surface 522a, so as to fit closely to the outer wall of the lamp tube 100, thereby increasing the effective contact area between the magnetic post 522 and the outer wall of the lamp tube 100 and preventing accidental falling due to insufficient effective contact area. In other embodiments, only one magnetic post 522 is provided.

[0043] In this embodiment, referring to Figure 3-Figure 4 The lamp also includes: a light-transmitting cover plate 610 assembled on one end of the lamp tube 100; the light-transmitting cover plate 610 is used to cover the end of the lamp tube 100 provided with the lens assembly 300 to prevent the lens assembly 300 from falling out. Specifically, the light-transmitting cover plate 610 is provided at one end of the lamp tube 100 and is located on the side of the irradiation direction of the light-emitting assembly 400. The light-transmitting cover plate 610 ensures that the light of the light-emitting assembly 400 can penetrate. In this embodiment, an annular film 700 is provided between the peripheral side of the end of the light-transmitting cover plate 610 extending into the lamp tube 100 and the inner peripheral wall of the lamp tube 100, so that the light-transmitting cover plate 610 can be fixed on the lamp tube 100. Specifically, an annular groove is provided on the peripheral side of the end of the light-transmitting cover plate 610 extending into the lamp tube 100, and the annular film 700 is placed in the annular groove. The light-transmitting cover 610 and the lamp tube 100 are fixed by an annular film 700, which avoids the problems of long curing time, poor fixing effect, and glue overflow affecting the overall appearance of the lamp caused by fixing the two by gluing in traditional lamps. And because the application scenarios of lamps are very wide, the fixing method of the annular film 700 can also prevent the light-transmitting cover 610 from loosening or falling off when the lamp expands and contracts due to heat, causing the lens 330 and other components inside the lamp to produce water mist and cannot be used normally. In this embodiment, the light-transmitting cover 610 is a transparent glass cover. In some embodiments, the light-transmitting cover 610 can also be a frosted cover.

[0044] In some embodiments, the outer side of the light-transmitting cover 610 may also be circumferentially provided with beam angle numbers so that the user can directly view the beam angle numbers on the side of the light-transmitting cover 610 facing the user, which is more intuitive.

[0045] In this embodiment, referring to Figure 5 and Figure 7 The end of the fixing assembly 200 away from the transparent cover plate 610 is provided with a blocking ring 220 that protrudes toward the central axis of the fixing assembly 200 to prevent the lens assembly 300 from falling away from the transparent cover plate 610. The blocking ring 220 cooperates with the transparent cover plate 610 to limit the movement space of the lens assembly 300 in the transverse direction.

[0046] In this embodiment, the fixing assembly 200 includes: a first fixing member 230 fixedly disposed within the cavity 110 and a second fixing member 240 detachably assembled on the first fixing member 230; the first fixing member 230 and the second fixing member 240 are semicircular, and the inner circumferential walls of the first fixing member 230 and the second fixing member 240 are respectively provided with a first internal thread and a second internal thread, which cooperate to form an internal thread 210 corresponding to the external thread 321. In this embodiment, the light-emitting assembly 400 includes: a light source support frame 410 fixedly disposed within the cavity 110 and a light source component 420 disposed on the light source support frame 410, and the light source support frame 410 is used to fix the light source component 420.

[0047] In this embodiment, referring to Figure 1-Figure 3 The lamp also includes a base 800 and a rotating shaft 900 having one end connected to the lamp tube 100 and the other end connected to the base 800, so that the lamp tube 100 can be rotated upward or downward relative to the base 800. The user can rotate the rotating shaft 900 to rotate the lamp tube 100 upward or downward relative to the base 800, thereby adjusting the illumination angle and illumination direction of the lamp.

[0048] In this embodiment, a power supply device electrically connected to the light source part 420 is provided in the cavity 110 of the lamp tube 100 on the side away from the light-transmitting cover plate 610, for supplying power to the light source part 420. The lamp also includes: a back cover 620 snapped onto the end of the lamp tube 100 away from the light-transmitting cover plate 610 to prevent dust and the like from entering the interior of the lamp tube 100. The snap-on design of the back cover 620 facilitates user maintenance and replacement of the power supply device. The light-transmitting cover plate 610, the back cover 620 and the lamp tube 100 cooperate to form an enclosed space for placing components such as the light-transmitting component, the fixing component 200, and the power supply device, so as to prevent impurities such as water and dust from entering the interior of the lamp and affecting the normal operation of each component.

[0049] In this embodiment, this lamp is a spotlight. In other embodiments, this lamp can also be a head-mounted searchlight or a landscape lamp installed underwater.

[0050] The process of adjusting the beam angle of the utility model is roughly as follows: In this embodiment, refer to Figures 1-4In the initial state, the second magnetic member 520 is located at a position on the outer wall of the lamp tube 100 opposite the scale ring 310 where the beam angle is 15 degrees. At this time, the side of the external thread 321 away from the transparent cover plate 610 abuts against the side of the blocking ring 220 facing the transparent cover plate 610. When the second magnetic member 520 is rotated clockwise along the outer wall of the lamp tube 100 from the position where the outer wall of the lamp tube 100 opposite the scale ring 310 where the beam angle is 15 degrees to the position where the outer wall of the lamp tube 100 opposite the scale ring 310 where the beam angle is 36 degrees, the first magnetic member 510 also rotates clockwise, driving the scale ring 310, the lens cover 320, and the lens 330 to rotate clockwise along their transverse central axes, i.e., to move laterally toward the transparent cover plate 610. During the rotation, the distance between the lens 330 and the light source 420 increases, the beam angle increases, the central light intensity decreases, and the light spot increases. On the contrary, the distance between the lens 330 and the light source 420 is reduced, the beam angle becomes smaller, the central light intensity becomes larger, and the light spot becomes smaller. In the process of adjusting the overall beam angle, the operation is simple, the adjustment angle of the beam angle is clear and easy to operate for the user.

[0051] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A lamp, characterized in that: include: A lamp tube (100) is provided with a cavity (110) therein; A fixing assembly (200) is fixedly disposed in the cavity (110); a lens assembly (300), one end of which is reciprocally movable and assembled in the fixing assembly (200) for controlling light; a light emitting assembly (400) fixedly disposed in the cavity (110) and located inside the lens assembly (300); A first magnetic attraction member (510) is provided on the lens assembly (300) and on the outer peripheral side of one end away from the fixing assembly (200); as well as a second magnetic member (520) for cooperating with the first magnetic member (510), wherein the second magnetic member (520) is detachably mounted on the outer peripheral wall of the lamp tube (100); The second magnetic member (520) is moved to drive the first magnetic member (510) to move, thereby driving the lens assembly (300) to move back and forth relative to the fixed assembly (200) to adjust the beam angle of the light-emitting assembly (400).

2. The lamp according to claim 1, characterized in that An internal thread (210) is provided on the inner peripheral wall of the fixing assembly (200), and an external thread (321) is provided on the outer peripheral wall of the lens assembly (300) close to one end of the fixing assembly (200). The internal thread (210) cooperates with the external thread (321) to enable the lens assembly (300) to rotate and reciprocate relative to the fixing assembly (200).

3. The lamp according to claim 2, characterized in that The lens assembly (300) comprises: a scale ring (310) on the outer peripheral wall of which the first magnetic attraction member (510) is detachably mounted; a lens cover (320) with one end clamped to the inner side of the scale ring (310) and the outer peripheral wall of the other end provided with the external thread (321); and a lens (330) with one end clamped between the inner side of the scale ring (310) and the lens cover (320) clamped to one end of the inner side of the scale ring (310) and the other end disposed in the lens cover (320); The second magnetic member (520) is rotated to drive the first magnetic member (510) to rotate, thereby driving the scale ring (310) to rotate, and finally driving the lens cover (320) and the lens (330) to rotate relative to the fixed assembly (200) to perform reciprocating movement.

4. The lamp according to claim 3, characterized in that A beam angle number is provided around a surface of the scale ring (310) away from the fixed component (200) to facilitate a user to adjust the beam angle of the light emitting component (400).

5. The lamp according to any one of claims 1 to 4, characterized in that: The second magnetic attraction member (520) comprises: an arc-shaped magnetic attraction sheet (521) and a magnetic attraction column (522) arranged on one side of the magnetic attraction sheet (521) facing the outer peripheral wall of the lamp tube (100) and extending downward; one or more magnetic attraction columns (522) are provided.

6. The lamp according to claim 5, characterized in that The side of the magnetic column (522) that abuts against the outer peripheral wall of the lamp tube (100) is an arc-shaped surface (522a) so as to fit the outer peripheral wall of the lamp tube (100).

7. The lamp according to claim 1, characterized in that The lamp further comprises: a light-transmitting cover plate (610) mounted on one end of the lamp tube (100); the light-transmitting cover plate (610) is used to cover the end of the lamp tube (100) provided with the lens assembly (300) to prevent the lens assembly (300) from falling out.

8. The lamp according to claim 7, characterized in that An annular film (700) is provided between the peripheral side of one end of the light-transmitting cover plate (610) extending into the lamp tube (100) and the inner peripheral wall of the lamp tube (100), so as to fix the light-transmitting cover plate (610) to one end of the lamp tube (100).

9. The lamp according to claim 7, characterized in that A blocking ring (220) protruding toward the central axis of the fixing assembly (200) is provided at one end of the fixing assembly (200) away from the light-transmitting cover plate (610) to prevent the lens assembly (300) from falling out in a direction away from the light-transmitting cover plate (610).

10. The lamp according to any one of claims 7 to 9, characterized in that: The lamp further comprises a base (800) and a rotating shaft (900) having one end connected to the lamp tube (100) and the other end connected to the base (800), so that the lamp tube (100) can rotate upward or downward relative to the base (800).

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