Lighting device

Abstract

The invention provides a lighting device, and relates to the technical field of vehicle manufacturing equipment.The lighting device comprises a lamp shaft, a lampshade and a winding mechanism, and the lamp shaft is provided with a lamp body and a light transmittance sensor; the lampshade is connected with the lamp shaft; the lamp body and the light transmittance sensor are both located on the inner side of the coverage range of the lampshade. The winding mechanism comprises a light-transmitting film, a first shaft, a second shaft and a driving motor, the driving motor drives the first shaft and the second shaft to rotate synchronously, and the first shaft is parallel to the second shaft; the two ends of the light-transmitting film are wound on the first shaft and the second shaft respectively, and the part, located between the first shaft and the second shaft, of the light-transmitting film is wound on the lampshade; the light transmittance sensor is electrically connected with the winding mechanism and used for detecting the light transmittance of the area, covered with the light-transmitting film, of the lampshade, so that when the light transmittance is lower than a preset value, the driving motor is controlled to be started.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing equipment, and in particular to a lighting device. Background Art

[0002] Since vehicle operation in the pit is essential, whether it is chassis wax spraying, chassis maintenance or other chassis operations, the lighting lamps in the pit will have their light-transmitting rates of the lamp covers reduced due to long-term dust coverage or splashed black wax during chassis wax spraying, affecting the light brightness, and thus affecting the work efficiency and quality of the personnel in the pit. Traditional lamp covers need to be frequently cleaned or replaced manually, resulting in problems such as low maintenance efficiency and long operation interruption time. Summary of the Invention

[0003] The purpose of the present invention is to provide a lighting device to alleviate the problems in the existing pit lighting process, such as the traditional lamp cover needs to be frequently cleaned or replaced manually, resulting in low maintenance efficiency and long operation interruption time.

[0004] A lighting device provided by the present invention includes: A lamp shaft, on which a lamp body and a light transmittance sensor are provided; A lamp cover, which is connected to the lamp shaft; both the lamp body and the light transmittance sensor are located inside the coverage area of the lamp cover; A winding mechanism, which includes a light-transmitting film, a first shaft, a second shaft and a driving motor. The driving motor drives the first shaft and the second shaft to rotate synchronously, and the first shaft and the second shaft are parallel; both ends of the light-transmitting film are respectively wound around the first shaft and the second shaft, and the part of the light-transmitting film located between the first shaft and the second shaft is wound around the lamp cover; The light transmittance sensor is electrically connected to the winding mechanism, and the light transmittance sensor is used to detect the light transmittance of the area on the lamp cover covered by the light-transmitting film, so as to control the driving motor to start when the light transmittance is lower than a preset value.

[0005] Further, the lamp cover is rotatably connected to the lamp shaft and they are coaxially arranged.

[0006] Further, the winding mechanism further includes a third shaft, a fourth shaft and a fifth shaft which are arranged in parallel. The light-transmitting film extending from the first shaft is sequentially wound around the lamp cover, the third shaft, the fourth shaft and the fifth shaft and then connected to the second shaft; The first shaft is located at the middle position of the triangle formed by the lamp cover, the third shaft and the fourth shaft; The fifth shaft abuts against the lamp cover and is located outside the triangle; the light-transmitting film extending from the first shaft passes between the lamp cover and the fifth shaft; The second shaft is located outside the triangle; The inner surface of the light-transmitting film wound around the lamp cover faces the lamp cover; the inner surface of the part of the light-transmitting film wound around the fifth shaft faces the lamp cover.

[0007] Further, the lighting device further includes a bracket and a connecting rod, and the lamp shaft, the third shaft, and the fourth shaft are all rotatably connected to the bracket; The connecting rod includes a first end and a second end which are oppositely arranged. The first end is rotatably connected to the fourth shaft, and the second end is rotatably connected to the fifth shaft.

[0008] Further, the lighting device further includes a support rod. One end of the support rod is rotatably connected to the fifth shaft, and a locking ring is provided at the other end. The locking ring can be opened and closed; The locking ring can be locked on the lamp shaft so that the support rod supports the fifth shaft toward the side away from the lamp shaft.

[0009] Further, a tension spring is provided between the lamp shaft and the fifth shaft.

[0010] Further, the drive motor is coaxially arranged with the first shaft and the two are fixedly connected; the first shaft and the second shaft are connected by gears.

[0011] Further, a deviation correction sensor is provided between the first shaft and the lamp shade; The lighting device further includes a translation mechanism. The translation mechanism is connected to the winding mechanism and is used to drive the winding mechanism to move along the axial direction of the first shaft; The deviation correction sensor is electrically connected to the translation mechanism.

[0012] Further, the translation mechanism includes an electric cylinder, a slider, and a slide rail. The push rod of the electric cylinder is connected to the slider, and the slider is respectively connected to the winding mechanism and the slide rail.

[0013] Further, the lamp shaft is hollow, and the wires of the lamp body and the light transmittance sensor both pass through the hollow part of the lamp shaft.

[0014] The present invention has at least the following advantages or beneficial effects: The lighting device provided by the present invention includes: a lamp shaft, a lamp shade, and a winding mechanism. A lamp body and a light transmittance sensor are provided on the lamp shaft; the lamp shade is connected to the lamp shaft; both the lamp body and the light transmittance sensor are located inside the coverage range of the lamp shade; the winding mechanism includes a light-transmitting film, a first shaft, a second shaft, and a drive motor. The drive motor drives the first shaft and the second shaft to rotate synchronously. The first shaft and the second shaft are parallel; both ends of the light-transmitting film are respectively wound around the first shaft and the second shaft, and the part of the light-transmitting film between the first shaft and the second shaft is wound around the lamp shade; the light transmittance sensor is electrically connected to the winding mechanism, and the light transmittance sensor is used to detect the light transmittance of the area on the lamp shade covered by the light-transmitting film, so that when the light transmittance is lower than a preset value, the drive motor is controlled to start.

[0015] During the operation in the trench, the light transmittance sensor continuously detects the light transmittance of the lamp cover. When the light transmittance is lower than the preset value, it indicates that the light-transmitting film on the outer side of the lamp cover has been contaminated and normal lighting cannot be achieved. Therefore, the drive motor is started to drive the first shaft and the second shaft to rotate synchronously, so that the light-transmitting film is released from the first shaft and then wound around the second shaft. During the winding process, the light-transmitting film wound around the outer side of the lamp cover is replaced, ensuring the lighting effect inside the trench. At the same time, there is no need for workers to manually wipe and clean the lamp cover, reducing the labor intensity of workers, reducing the time of operation interruption, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the lighting device provided in Embodiment 1 of the present invention; Figure 2 For Figure 1 Partial enlarged view of position M in Figure 3 Left view of the lighting device provided in Embodiment 1 of the present invention; Figure 4 For Figure 3 Cross-sectional view in the A-A direction of Figure 5 For Figure 4 Partial enlarged view of position N in Figure 6 For Figure 3 Cross-sectional view in the B-B direction of Figure 7 For Figure 6 Partial enlarged view of position H in Figure 8 Top view of the lighting device provided in Embodiment 1 of the present invention; Figure 9 For Figure 8 Cross-sectional view in the C-C direction of Figure 10 For Figure 9 Partial enlarged view of position L in Figure 11 Front view of the lighting device provided in Embodiment 1 of the present invention; Figure 12 For Figure 11 Cross-sectional view in the D-D direction of Figure 13 ForFigure 12 Partial enlarged view of the middle K position; Figure 14 Trend chart of the light-transmitting film of the lighting device provided in Embodiment 2 of the present invention (the fifth axis is in the working state); Figure 15 Trend chart of the light-transmitting film of the lighting device provided in Embodiment 2 of the present invention (the fifth axis is in the open state).

[0018] Icons: 1 - trench; 2 - coupling one; 3 - gear; 4 - gear shaft; 5 - bearing one; 6 - coupling two; 7 - first shaft; 8 - light-transmitting film; 91 - upper side limit shaft; 92 - lower side limit shaft; 10 - deviation rectifying sensor; 11 - deviation rectifying sensor bracket; 12 - lamp shade; 13 - lamp body; 14 - light transmittance sensor; 15 - bearing two; 16 - lamp shaft; 17 - motor cover; 18 - driving motor; 19 - motor bracket; 20 - electric cylinder; 21 - electric cylinder bracket; 22 - coupling three; 23 - electric cylinder thrust bracket; 24 - slider; 25 - slide rail; 26 - support frame one; 27 - second shaft; 28 - controller plus panel; 29 - support frame two; 30 - third shaft; 31 - fourth shaft; 32 - fifth shaft; 33 - connecting rod; 34 - support rod. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and illustrated herein generally can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0021] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0023] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "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 mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Embodiment 1 As Figures 1 - 13 shown, the lighting device can be applied to positions where the environment is easily polluted. For example, in the trench 1, when the vehicle is operating in the trench 1, whether it is chassis wax spraying, chassis repair or other chassis operations, the light transmission rate of the lamp cover 12 will be reduced due to the long-term coverage of dust or the splashing of black wax during the chassis wax spraying process, affecting the light brightness.

[0026] Moreover, when applied to the trench 1, one lighting device can be provided on each of the left and right sides.

[0027] As Figure 2 shown, the lighting device provided in this embodiment includes: a lamp shaft 16, a lamp cover 12, and a winding mechanism.

[0028] As Figure 2 and Figure 7 shown, the lighting device further includes a first support frame 26 and a second support frame 29, and the second support frame 29 is fixed at a position near the middle of the front and rear positions of the trench 1.

[0029] As Figure 13As shown, the motor cover 17 of the drive motor 18 is fixed to the first support frame 26, and the drive motor 18 is fixed to the first support frame 26 through the motor bracket 19.

[0030] As Figure 5 and Figure 13 shown, the rotating shaft of the drive motor 18 is connected to the gear shaft 4 through the first coupling 2. A gear 3 is installed on the gear shaft 4. The gear shaft 4 is fixedly connected to the first support frame 26 through the first bearing 5. The other end of the gear shaft 4 is connected to the first shaft 7 through the second coupling 6. The connection mode between the second shaft 27 and the gear shaft 4 is the same as that of the first shaft 7. The two gears 3 on the gear shaft 4 respectively connected to the first shaft 7 and the second shaft 27 are meshed.

[0031] As Figure 5 shown, a lamp body 13 and a light transmittance sensor 14 are provided on the lamp shaft 16. The lamp cover 12 is rotatably connected to the lamp shaft 16. Both the lamp body 13 and the light transmittance sensor 14 are located inside the coverage area of the lamp cover 12.

[0032] As Figure 2 and Figure 7 shown, the winding mechanism includes a light-transmitting film 8, a first shaft 7, a second shaft 27, and a drive motor 18. The drive motor 18 drives the first shaft 7 and the second shaft 27 to rotate synchronously. The first shaft 7 and the second shaft 27 are parallel. Both ends of the light-transmitting film 8 are respectively wound around the first shaft 7 and the second shaft 27. The part of the light-transmitting film 8 located between the first shaft 7 and the second shaft 27 is wound around the lamp cover 12; the light transmittance sensor 14 is electrically connected to the winding mechanism. The light transmittance sensor 14 is used to detect the light transmittance of the area on the lamp cover 12 covered by the light-transmitting film 8, so as to control the drive motor 18 to start when the light transmittance is lower than a preset value.

[0033] The light-transmitting film 8 is respectively wound around the first shaft 7 and the second shaft 27. The light-transmitting film 8 on the first shaft 7 passes through the lamp cover 12 through the upper limiting shaft 91, and then is wound into the second shaft 27 from the lower limiting shaft 92.

[0034] As Figure 5 shown, the front and rear sides of the lamp cover 12 are fixed to the lamp shaft 16 through the second bearing 15. The lamp body 13 can be fixed to the outer surface of the lamp shaft 16 through a clamp and is arranged in a circumferential segmented manner.

[0035] As Figure 7 shown, the light transmittance sensor 14 is also fixed to the lamp shaft 16. Both sides of the lamp shaft 16 are fixed to the second support frame 29.

[0036] During the operation of the trench 1, the light transmittance sensor 14 continuously detects the light transmittance of the lamp cover 12. When the light transmittance is lower than the preset value, it indicates that the light-transmitting film 8 outside the lamp cover 12 has been contaminated and normal lighting cannot be achieved. Therefore, the drive motor 18 is started to drive the first shaft 7 and the second shaft 27 to rotate synchronously, so that the light-transmitting film 8 is released from the first shaft 7 and then wound around the second shaft 27. During the winding process, the light-transmitting film 8 wound around the outside of the lamp cover 12 is replaced, ensuring the lighting effect inside the trench 1. At the same time, there is no need for workers to manually wipe and clean the lamp cover 12, reducing the labor intensity of workers, reducing the time of operation interruption, and improving work efficiency.

[0037] A deviation correction sensor 10 is provided between the first shaft 7 and the lamp cover 12; the lighting device further includes a translation mechanism, which is connected to the winding mechanism and is used to drive the winding mechanism to move axially along the first shaft 7; the deviation correction sensor 10 is electrically connected to the translation mechanism.

[0038] The deviation correction sensor 10 is fixedly connected to the upper limit shaft 91 through the deviation correction sensor bracket 11, and the light-transmitting film 8 passes through the deviation correction sensor 10 during the rotation and transmission process. The first support frame 26 is fixed on the slider 24, the slider 24 is connected to the linear slide rail 25, the linear slide rail 25 is arranged at the bottom of the trench 1, the electric cylinder 20 is fixed on the trench 1 through the electric cylinder bracket 21, the push rod of the electric cylinder 20 is connected to the electric cylinder thrust bracket 23 through the coupling 22, and the other side of the electric cylinder thrust bracket 23 is fixedly connected to the first support frame 26. The controller plus panel 28 is placed beside the drive motor 18. The deviation correction sensor 10 will send a signal to the controller through the change of the left and right positions of the light-transmitting film 8, and the controller will then adjust the left and right positions of the light-transmitting film 8 by controlling the telescopic movement of the electric cylinder 20 to ensure that the light-transmitting film 8 will not deviate to one side during the transmission process.

[0039] The lamp shaft 16 is a hollow steel pipe, and the wire harnesses of the lamp body 13 and the light transmittance sensor 14 are both led out from the inside of the steel pipe. The light transmittance sensor 14 detects from the inside to the outside of the lamp cover 12. If the light transmittance is lower than the set value, it will send a signal to control the drive motor 18 to rotate a set number of turns to replace the light-transmitting film 8 outside the lamp cover 12.

[0040] When the current of the drive motor 18 continuously exceeds the limit, the system will give an early warning of the reel jamming fault, and there will be an alarm prompt at the controller plus panel 28 to remind the worker to repair and maintain the device.

[0041] Embodiment 2 As Figure 14 and Figure 15 shown, the difference from Embodiment 1 is that in this embodiment, the setting method of the winding mechanism is different.

[0042] The winding mechanism further includes a third shaft 30, a fourth shaft 31, and a fifth shaft 32 that are arranged in parallel. The light-transmitting film 8 extending from the first shaft 7 is sequentially wound around the lamp shade 12, the third shaft 30, the fourth shaft 31, and the fifth shaft 32 and then connected to the second shaft 27. The first shaft 7 is located at the middle position of the triangle formed by the lamp shade 12, the third shaft 30, and the fourth shaft 31. The fifth shaft 32 abuts against the lamp shade 12 and is located outside the triangle. The light-transmitting film 8 extending from the first shaft 7 passes between the lamp shade 12 and the fifth shaft 32. The second shaft 27 is located outside the triangle. The inner surface of the light-transmitting film wound around the lamp shade 12 faces the lamp shade 12. The inner surface of a part of the light-transmitting film 8 wound around the fifth shaft 32 faces the lamp shade 12.

[0043] The light-transmitting film 8 is led out from the first shaft 7 located at the central position, extends forward and downward, then bypasses the lamp shade 12 backward and downward, extends backward and then bypasses the third shaft 30 upward and to the side, bypasses the fourth shaft 31 downward and forward, bypasses the fifth shaft 32 upward and forward, and finally extends backward and upward to be connected to the second shaft 27. By adopting the above winding method, the first shaft 7 can be surrounded at the middle position of the light-transmitting film 8. Moreover, the light-transmitting film 8 between the first shaft 7 and the lamp shade 12 can be blocked by the light-transmitting film 8 between the fourth shaft 31 and the fifth shaft 32, and the light-transmitting film 8 between the fifth shaft 32 and the second shaft 27, so as to prevent the splashed stains from contaminating the light-transmitting film 8 that is about to be wound around the lamp shade 12. At the same time, the commutation winding method is adopted, that is, the light-transmitting film 8 wound outside the lamp shade 12 has its inner surface facing the lamp shade 12 and its outer surface facing the pollution source. After the commutation effect of the third shaft 30 and the fourth shaft 31, the light-transmitting film 8 wound around the fifth shaft 32 has its inner surface facing the pollution source and its outer surface facing the fifth shaft 32. Therefore, the clean side (inner surface) of the light-transmitting film 8 wound around the fifth shaft 32 abuts against the clean side (outer surface) of the light-transmitting film 8 wound around the lamp shade 12, so that the outer surface of the light-transmitting film 8 that is about to be wound around the lamp shade 12 is clean, so that the lighting device can be applied to a more complex environment, and the usage cost of the light-transmitting film 8 can be reduced.

[0044] The lighting device further includes a bracket and a connecting rod 33. The lamp shaft 16, the third shaft 30, and the fourth shaft 31 are all rotatably connected to the bracket. The connecting rod 33 includes a first end and a second end that are oppositely arranged. The first end is rotatably connected to the fourth shaft 31, and the second end is rotatably connected to the fifth shaft 32.

[0045] The lamp shaft 16, the third shaft 30, and the fourth shaft 31 are all rotatably connected to the bracket. The spatial positions of the lamp shaft 16, the third shaft 30, and the fourth shaft 31 relative to the bracket remain unchanged, and they can only rotate. The fifth shaft 32 is lapped above the lamp shade 12 due to gravity. The function of the connecting rod 33 is to prevent the fifth shaft 32 from falling off.

[0046] The lighting device further includes a support rod 34. One end of the support rod 34 is rotatably connected to the fifth shaft 32, and a locking ring is provided at the other end. The locking ring can be opened and closed. The locking ring can be locked on the lamp shaft 16 so that the support rod 34 supports the fifth shaft 32 away from the lamp shaft 16 side.

[0047] During operation, the support rod 34 is not used, that is, the support rod 34 is not connected to the lamp shaft 16. When the light-transmitting film 8 needs to be replaced, the fifth shaft 32 can be lifted, and then the locking ring is locked on the lamp shaft 16. The support rod 34 lifts the fifth shaft 32, and the fifth shaft 32 is separated from the lamp cover 12. After connecting the light-transmitting film 8 to the first shaft 7, the locking ring is unlocked, and the support rod 34 is separated from the lamp shaft 16. The fifth shaft 32 falls on the lamp cover 12, and then the other end of the light-transmitting film 8 is connected to the second shaft 27.

[0048] A tension spring is provided between the lamp shaft 16 and the fifth shaft 32 to press the fifth shaft 32 against the lamp cover 12 and reduce the gap.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lighting device, characterized in that: include: A lamp axis (16), wherein a lamp body (13) and a light transmittance sensor (14) are arranged on the lamp axis (16); A lampshade (12), the lampshade (12) being connected to the lamp shaft (16); the lamp body (13) and the light transmittance sensor (14) are both located inside the coverage area of ​​the lampshade (12); A winding mechanism, the winding mechanism comprising a light-transmitting film (8), a first shaft (7), a second shaft (27) and a driving motor (18), the driving motor (18) driving the first shaft (7) and the second shaft (27) to rotate synchronously, the first shaft (7) and the second shaft (27) being parallel; two ends of the light-transmitting film (8) are respectively wound around the first shaft (7) and the second shaft (27), and a portion of the light-transmitting film (8) located between the first shaft (7) and the second shaft (27) is wound around the lampshade (12); The light transmittance sensor (14) is electrically connected to the winding mechanism, and is used to detect the light transmittance of the area on the lampshade (12) covered by the light-transmitting film (8), so as to control the drive motor (18) to start when the light transmittance is lower than a preset value.

2. The lighting device according to claim 1, characterized in that: The lampshade (12) is rotatably connected to the lamp shaft (16), and the two are coaxially arranged.

3. The lighting device according to claim 2, characterized in that: The winding mechanism further comprises a third shaft (30), a fourth shaft (31) and a fifth shaft (32) arranged in parallel, and the light-transmitting film (8) extending from the first shaft (7) is sequentially wound around the lampshade (12), the third shaft (30), the fourth shaft (31) and the fifth shaft (32) and then connected to the second shaft (27); The first axis (7) is located at the middle position of a triangle formed by the lampshade (12), the third axis (30) and the fourth axis (31); The fifth axis (32) abuts against the lampshade (12) and is located outside the triangle; the light-transmitting film (8) extending from the first axis (7) passes between the lampshade (12) and the fifth axis (32); The second axis (27) is located outside the triangle; The inner surface of the light-transmitting film wound around the lampshade (12) faces the lampshade (12); and the inner surface of the portion of the light-transmitting film (8) wound around the fifth shaft (32) faces the lampshade (12).

4. The lighting device according to claim 3, characterized in that: The lighting device further comprises a bracket and a connecting rod (33), and the lamp axis (16), the third axis (30), and the fourth axis (31) are all rotatably connected to the bracket; The connecting rod (33) comprises a first end and a second end which are arranged opposite to each other, the first end being rotationally connected to the fourth shaft (31), and the second end being rotationally connected to the fifth shaft (32).

5. The lighting device according to claim 4, characterized in that: The lighting device further comprises a support rod (34), one end of the support rod (34) being rotatably connected to the fifth shaft (32), and the other end of the support rod being provided with a locking ring, the locking ring being openable and closable; The locking ring can be locked on the lamp shaft (16) so that the support rod (34) supports the fifth shaft (32) towards a side away from the lamp shaft (16).

6. The lighting device according to claim 5, characterized in that: A tension spring is provided between the lamp axis (16) and the fifth axis (32).

7. The lighting device according to claim 1, characterized in that: The drive motor (18) is coaxially arranged with the first shaft (7), and the two are fixedly connected; the first shaft (7) and the second shaft (27) are connected via a gear (3).

8. The lighting device according to claim 1, characterized in that: A deviation correction sensor (10) is provided between the first shaft (7) and the lampshade (12); The lighting device further comprises a translation mechanism, the translation mechanism being connected to the winding mechanism and being used to drive the winding mechanism to move axially along the first axis (7); The deviation correction sensor (10) is electrically connected to the translation mechanism.

9. The lighting device according to claim 8, characterized in that: The translation mechanism comprises an electric cylinder (20), a slider (24) and a slide rail (25); a push rod of the electric cylinder (20) is connected to the slider (24); and the slider (24) is respectively connected to the winding mechanism and the slide rail (25).

10. The lighting device according to claim 1, characterized in that: The lamp shaft (16) is hollow, and the electrical wires of the lamp body (13) and the light transmittance sensor (14) are strung out from the hollow portion of the lamp shaft (16).

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