Lighting device

Abstract

The present invention provides an illumination device, which relates to the technical field of vehicle manufacturing equipment. The illumination device includes: a lamp shaft, a lamp cover, and a winding mechanism. A lamp body and a light transmittance sensor are arranged on the lamp shaft; the lamp cover is connected to the lamp shaft; both the lamp body and the light transmittance sensor are located inside the coverage range of the lamp cover; the winding mechanism 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.

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 operations in the pit are essential, whether it is chassis wax spraying, chassis repair 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 that in the existing pit lighting process, traditional lamp covers need 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:

[0005] A lamp shaft, on which a lamp body and a light transmittance sensor are arranged;

[0006] A lamp cover, which is connected to the lamp shaft; both the lamp body and the light transmittance sensor are located inside the coverage of the lamp cover;

[0007] 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 between the first shaft and the second shaft is wound around the lamp cover;

[0008] 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.

[0009] Further, the lamp cover is rotatably connected to the lamp shaft and they are coaxially arranged.

[0010] 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;

[0011] The first shaft is located at the middle position of the triangle formed by the lamp cover, the third shaft and the fourth shaft;

[0012] 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;

[0013] The second shaft is located outside the triangle;

[0014] 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.

[0015] Furthermore, 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;

[0016] The connecting rod includes a first end and a second end arranged oppositely, the first end is rotatably connected to the fourth shaft, and the second end is rotatably connected to the fifth shaft.

[0017] Furthermore, 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 arranged at the other end, and the locking ring can be opened and closed;

[0018] The locking ring can be locked on the lamp shaft so that the support rod supports the fifth shaft away from the lamp shaft side.

[0019] Furthermore, a tension spring is arranged between the lamp shaft and the fifth shaft.

[0020] Furthermore, 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.

[0021] Furthermore, a deviation correction sensor is arranged between the first shaft and the lamp cover;

[0022] The lighting device further includes a translation mechanism, and the translation mechanism is connected to the winding mechanism for driving the winding mechanism to move along the axial direction of the first shaft;

[0023] The deviation correction sensor is electrically connected to the translation mechanism.

[0024] Furthermore, 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.

[0025] Furthermore, 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.

[0026] The present invention at least has the following advantages or beneficial effects:

[0027] 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 arranged 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 of the lamp shade; the winding mechanism 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 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 as to control the driving motor to start when the light transmittance is lower than a preset value.

[0028] During the operation in the trench, the light transmittance sensor continuously detects the light transmittance of the lamp shade. When the light transmittance is lower than the preset value, it indicates that the light-transmitting film outside the lamp shade has been contaminated and normal lighting cannot be achieved. Therefore, the driving motor starts, driving 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 onto the second shaft. During the winding process, the light-transmitting film wound outside the lamp shade 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 shade, reducing the labor intensity of workers, reducing the time of operation interruption, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 drawings in the following description 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.

[0030] Figure 1 Schematic diagram of the lighting device provided in Embodiment 1 of the present invention;

[0031] Figure 2 For Figure 1 Partial enlarged view of position M in

[0032] Figure 3 Left view of the lighting device provided in Embodiment 1 of the present invention;

[0033] Figure 4 For Figure 3 Cross-sectional view in the A-A direction in

[0034] Figure 5 For Figure 4 Partial enlarged view of position N in

[0035] Figure 6 For Figure 3 Cross-sectional view in the B-B direction in

[0036] Figure 7 is Figure 6 The enlarged partial view of the position H in

[0037] Figure 8 The top view of the lighting device provided in Embodiment 1 of the present invention;

[0038] Figure 9 is Figure 8 The sectional view in the direction of C-C in

[0039] Figure 10 is Figure 9 The enlarged partial view of the position L in

[0040] Figure 11 The front view of the lighting device provided in Embodiment 1 of the present invention;

[0041] Figure 12 is Figure 11 The sectional view in the direction of D-D in

[0042] Figure 13 is Figure 12 The enlarged partial view of the position K in

[0043] Figure 14 The 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);

[0044] Figure 15 The 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).

[0045] Icons: 1 - trench; 2 - first coupling; 3 - gear; 4 - gear shaft; 5 - first bearing; 6 - second coupling; 7 - first shaft; 8 - light-transmitting film; 91 - upper side limiting shaft; 92 - lower side limiting shaft; 10 - deviation rectifying sensor; 11 - deviation rectifying sensor bracket; 12 - lamp shade; 13 - lamp body; 14 - light transmittance sensor; 15 - second bearing; 16 - lamp shaft; 17 - motor cover; 18 - driving motor; 19 - motor bracket; 20 - electric cylinder; 21 - electric cylinder bracket; 22 - third coupling; 23 - electric cylinder thrust bracket; 24 - slider; 25 - slide rail; 26 - first support frame; 27 - second shaft; 28 - controller plus panel; 29 - second support frame; 30 - third shaft; 31 - fourth shaft; 32 - fifth shaft; 33 - connecting rod; 34 - support rod. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying 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.

[0048] It should be noted that similar reference numerals and letters indicate similar 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.

[0049] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "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 product of the invention 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 cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0050] 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.

[0051] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "coupled" 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.

[0052] Embodiment 1

[0053] AsFigures 1 - 13 As shown, the lighting device can be applied to locations 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 maintenance or other chassis operations, due to the long-term dust covering on the lamp cover 12, or the black wax splashing during the chassis wax spraying process, the light transmittance of the lamp cover 12 will be reduced, affecting the light brightness.

[0054] Moreover, when applied to the trench 1, one lighting device can be provided on each of the left and right sides.

[0055] As Figure 2 shown, the lighting device provided in this embodiment includes: a lamp shaft 16, a lamp cover 12 and a winding mechanism.

[0056] As Figure 2 and Figure 7 shown, the lighting device further includes a support frame one 26 and a support frame two 29, and the support frame two 29 is fixed at the middle position of the front and rear positions of the trench 1.

[0057] As Figure 13 shown, the motor cover 17 of the driving motor 18 is fixed to the support frame one 26, and the driving motor 18 is fixed to the support frame one 26 through the motor bracket 19.

[0058] As Figure 5 and Figure 13 shown, the rotating shaft of the driving motor 18 is connected to the gear shaft 4 through a coupling one 2, a gear 3 is installed on the gear shaft 4, the gear shaft 4 is fixedly connected to the support frame one 26 through a bearing one 5, the other end of the gear shaft 4 is connected to the first shaft 7 through a coupling two 6, and 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.

[0059] 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 range of the lamp cover 12.

[0060] 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 driving motor 18. The driving motor 18 drives the first shaft 7 and the second shaft 27 to rotate synchronously, and the first shaft 7 and the second shaft 27 are parallel. The two ends of the light-transmitting film 8 are respectively wound around the first shaft 7 and the second shaft 27, and the part of the light-transmitting film 8 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, and 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 driving motor 18 to start when the light transmittance is lower than a preset value.

[0061] The light-transmitting film 8 is respectively wound around the first shaft 7 and the second shaft 27, and the light-transmitting film 8 on the first shaft 7 passes through the lamp cover 12 via the upper limiting shaft 91, and then is wound into the second shaft 27 from the lower limiting shaft 92.

[0062] As Figure 5 shown, the front and rear sides of the lamp cover 12 are fixed on the lamp shaft 16 through the second bearing 15, and the lamp body 13 can be fixed on the outer surface of the lamp shaft 16 through a clamp and is arranged in a circumferential segmented manner.

[0063] As Figure 7 shown, the light transmittance sensor 14 is also fixed on the lamp shaft 16, and both sides of the lamp shaft 16 are fixed to the second support frame 29.

[0064] 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 onto 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.

[0065] 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 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.

[0066] The deviation correction sensor 10 is fixedly connected to the upper limiting 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 to 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 signals 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 does not deviate to one side during the transmission process.

[0067] The lamp shaft 16 is a hollow steel pipe. The wire harnesses of the lamp body 13 and the light transmittance sensor 14 are led out from the inside of the steel pipe. The light transmittance sensor 14 detects from the inside to the outside of the lamp shade 12. If the light transmittance is lower than the set value, a signal will be sent to control the driving motor 18 to rotate a set number of turns to replace the light-transmitting film 8 on the outside of the lamp shade 12.

[0068] When the current of the driving motor 18 is continuously over-limit, the system will give an early warning of the reel jamming fault, and there will be an alarm prompt at the controller plus the panel 28 to remind the worker to repair and maintain the device.

[0069] Embodiment 2

[0070] 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.

[0071] The winding mechanism further includes a third shaft 30, a fourth shaft 31 and a fifth shaft 32 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 the part of the light-transmitting film 8 wound around the fifth shaft 32 faces the lamp shade 12.

[0072] The light-transmitting film 8 is led out from the first shaft 7 located at the central position, extends forward and downward, bypasses the lamp cover 12 backward and downward, extends backward, bypasses the third shaft 30 upward and laterally, bypasses the fourth shaft 31 downward and forward, bypasses the fifth shaft 32 upward and forward, and finally extends backward and upward and is 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 cover 12 can be blocked by the light-transmitting film 8 between the fourth shaft 31 and the fifth shaft 32, and 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 on the lamp cover 12. At the same time, the commutation winding method is adopted, that is, the light-transmitting film 8 wound on the outside of the lamp cover 12 has its inner surface facing the lamp cover 12 and its outer surface facing the pollution source. Through the commutation effect of the third shaft 30 and the fourth shaft 31, the light-transmitting film 8 wound on 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 on the fifth shaft 32 abuts against the clean side (outer surface) of the light-transmitting film 8 wound on the lamp cover 12, so that the outer surface of the light-transmitting film 8 that is about to be wound on the lamp cover 12 is clean, so that the lighting device can be applied to a more complex environment, and the use cost of the light-transmitting film 8 can be reduced.

[0073] 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 arranged oppositely. The first end is rotatably connected to the fourth shaft 31, and the second end is rotatably connected to the fifth shaft 32.

[0074] 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 cover 12 due to gravity. The function of the connecting rod 33 is to prevent the fifth shaft 32 from falling off.

[0075] 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 arranged 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 toward the side away from the lamp shaft 16.

[0076] 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.

[0077] A tension spring is arranged between the lamp shaft 16 and the fifth shaft 32 to press the fifth shaft 32 against the lamp shade 12 and reduce the gap.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended 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 for some or all of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lighting device, characterized in that, Comprising: A lamp shaft (16), on which a lamp body (13) and a light transmittance sensor (14) are provided; A lamp cover (12), which is connected to the lamp shaft (16); both the lamp body (13) and the light transmittance sensor (14) are located inside the coverage of the lamp cover (12); A winding mechanism, which includes a light-transmitting film (8), a first shaft (7), a second shaft (27), and a driving motor (18). The driving motor (18) drives the first shaft (7) and the second shaft (27) to rotate synchronously, and 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), and the part of the light-transmitting film (8) 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 driving motor (18) to start when the light transmittance is lower than a preset value; The lamp cover (12) is rotatably connected to the lamp shaft (16) and they are coaxially arranged; The winding mechanism further includes a third shaft (30), a fourth shaft (31), and a fifth shaft (32) arranged in parallel. The light-transmitting film (8) extending from the first shaft (7) is successively wound around the lamp cover (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 cover (12), the third shaft (30), and the fourth shaft (31); The fifth shaft (32) abuts against the lamp cover (12) and is located outside the triangle; the light-transmitting film (8) extending from the first shaft (7) passes between the lamp cover (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 cover (12) faces the lamp cover (12); the inner surface of the part of the light-transmitting film (8) wound around the fifth shaft (32) faces the lamp cover (12); 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 arranged oppositely. The first end is rotatably connected to the fourth shaft (31), and the second end is rotatably connected to the fifth shaft (32); 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, and 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); 2. The lighting device according to claim 1, characterized in that A tension spring is provided between the lamp shaft (16) and the fifth shaft (32).

3. 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) is connected to the second shaft (27) through a gear (3).

4. The lighting device according to claim 1, characterized in that A deviation correction sensor (10) is arranged between the first shaft (7) and the lamp shade (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.

5. The lighting device according to claim 4, characterized in that, The translation mechanism includes an electric cylinder (20), a slider (24) and a slide rail (25). The 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).

6. The lighting device according to claim 1, characterized in that, The lamp shaft (16) is hollow, and the wires of the lamp body (13) and the light transmittance sensor (14) both pass out from the hollow part of the lamp shaft (16).

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