Illumination angle adjustable lighting device for stadium

Abstract

The invention relates to the technical field of stadium lighting devices, and discloses a stadium lighting device with an adjustable lighting angle, which comprises a connecting frame, an angle adjusting plate is arranged in the connecting frame, and a first supporting shaft is fixedly connected to the angle adjusting plate; an angle adjusting mechanism used for driving the first supporting shaft and the angle adjusting plate to rotate is installed in the connecting frame, an orientation adjusting plate is arranged on the lower side of the angle adjusting plate, a second supporting shaft is fixed to the upper side of the orientation adjusting plate, and the two ends of the second supporting shaft are rotationally connected with the angle adjusting plate through bearings. The LED illuminating lamp is arranged on the lower side of the orientation adjusting plate, a rotation adjusting mechanism used for driving the second supporting shaft and the orientation adjusting plate to rotate is installed on the lower side of the angle adjusting plate, and an automatic dust removing mechanism is installed on the orientation adjusting plate. The heat dissipation performance of the lamp is good, and the service life is prolonged; and dust on the lamp is conveniently removed, and the influence of dust on lamp light is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of stadium lighting devices, and in particular to a lighting device for stadiums with adjustable illumination angle. Background Art

[0002] Universities have built stadiums for students to exercise. In addition, university stadiums are often used to hold various activities. A large number of lighting devices are installed in the stadiums for lighting. However, the lighting fixtures in existing university stadiums are all fixedly installed. After installation, the light cannot be adjusted. When holding activities in the stadiums, it is often necessary to adjust the angle and direction of the light to focus on the activities. In addition, the lamps in existing stadiums are mostly high-power lamps, which will generate a lot of heat when used. However, their own heat dissipation performance is limited, and they are prone to high temperature overheating, which will affect the service life of the lamps. In addition, when the lamps are used for a long time, dust will accumulate on the lighting panel, and the dust will affect the propagation of light. Summary of the invention

[0003] The object of the present invention is to provide a lighting device for sports stadiums with adjustable lighting angle, which is convenient for adjusting the irradiation angle and direction of light; has good heat dissipation performance of the lamp and increases the service life; is convenient for cleaning the lamp and reduces the influence of dust on the light of the lamp.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A lighting device for a sports stadium with adjustable illumination angle, comprising a connecting frame, an angle adjustment plate, a direction adjustment plate, an LED lighting lamp, an angle adjustment mechanism, a rotation adjustment mechanism, an auxiliary heat dissipation mechanism and an automatic dust cleaning mechanism, wherein the angle adjustment plate is arranged in the connecting frame, a first support shaft is fixedly connected to the angle adjustment plate, both ends of the first support shaft are rotatably connected to the connecting frame through bearings, the angle adjustment mechanism for driving the first support shaft and the angle adjustment plate to rotate is installed in the connecting frame, the direction adjustment plate is arranged on the lower side of the angle adjustment plate, a second support shaft is fixed on the upper side of the direction adjustment plate, both ends of the second support shaft are rotatably connected to the angle adjustment plate through bearings, the LED lighting lamp is arranged on the lower side of the direction adjustment plate, the LED lighting lamp is detachably fixed to the direction adjustment plate by screws, the rotation adjustment mechanism for driving the second support shaft and the direction adjustment plate to rotate is installed on the lower side of the angle adjustment plate, the auxiliary heat dissipation mechanism is installed on the back of the LED lighting lamp, the automatic dust cleaning mechanism is installed on the direction adjustment plate, and the automatic dust cleaning mechanism cleans the light-emitting panel of the LED lighting lamp. When in use, the connecting frame is fixed to the roof of the stadium by bolts, and the interior of the stadium is illuminated by LED lamps. The angle adjustment mechanism drives the first support shaft and the angle adjustment plate to rotate forward and backward, and the angle adjustment plate drives the direction adjustment plate and the LED lamp to rotate forward and backward, so as to adjust the illumination angle of the LED lamp. In addition, the second support shaft is driven to rotate by the rotation adjustment mechanism, and the direction adjustment plate is driven to rotate left and right by the second support shaft, and the LED lamp is driven to rotate left and right by the direction adjustment plate, so as to adjust the illumination direction of the LED lamp, so as to control the light of the LED lamp. When in use, the LED lamp is cooled by the auxiliary heat dissipation mechanism to reduce the temperature of the LED lamp and increase the service life of the LED lamp. After a period of use, the light-emitting panel of the LED lamp can be cleaned by the automatic cleaning mechanism.

[0005] Preferably, the connecting frame is provided with a plurality of mounting holes for bolts to pass through.

[0006] Preferably, the angle adjustment mechanism comprises: a first motor, a threaded rod, a threaded sleeve, a rack, a first cylindrical gear, a sliding block and a linear slide rail.

[0007] Preferably: the first motor is fixed in the connecting frame, the first motor is detachably fixed to the connecting frame by screws, no threads are provided at both ends of the threaded rod, both ends of the threaded rod are rotatably connected to the connecting frame by bearings, the output shaft of the first motor is fixed to the threaded rod through a coupling, a threaded sleeve is installed on the threaded rod, the rack is fixed on the lower side of the threaded sleeve, the first cylindrical gear meshing with the rack is provided on the lower side of the rack, the first cylindrical gear is fixedly installed on the first support shaft, the slider is fixed on the upper side of the threaded sleeve, the slider is slidably installed on the linear slide rail, and the linear slide rail is fixed to the connecting frame by screws.

[0008] Preferably, the rotation adjustment mechanism includes: a second motor, a second cylindrical gear and a third cylindrical gear, the second motor is fixed to the lower side of the angle adjustment plate, the second motor is detachably fixed to the angle adjustment plate by screws, the second cylindrical gear is fixedly mounted on the output shaft of the second motor, a third cylindrical gear meshing with the second cylindrical gear is provided on one side of the second cylindrical gear, and the third cylindrical gear is fixedly mounted on the second support shaft. When in use, the second cylindrical gear is driven to rotate by the output shaft of the second motor, the third cylindrical gear is driven to rotate by the rotation of the second cylindrical gear, the second support shaft is driven to rotate by the rotation of the third cylindrical gear, the adjustment plate is driven to rotate toward the second support shaft, and the LED lighting lamp is driven to rotate left and right by rotating toward the adjustment plate, thereby adjusting the irradiation direction of the LED lighting lamp.

[0009] Preferably: the auxiliary heat dissipation mechanism includes: a heat exchange shell, heat dissipation fins and coolant, the heat exchange shell is adhered and fixed to the LED lighting lamp by glue, a plurality of heat dissipation fins are fixed on the left and right sides of the heat exchange shell, and the heat exchange shell is filled with the coolant.

[0010] Preferably, the heat exchange shell and the heat dissipation fins are both made of copper.

[0011] Preferably, the automatic dust cleaning mechanism comprises: an air pipe, an air nozzle, an air pump, a rubber hose, a third motor, a driving wheel, a driven wheel and a transmission belt.

[0012] Preferably: the air pipe is rotatably connected to the orientation adjustment plate through a bearing, a plurality of the air nozzles are arranged on the air pipe, the air pump is fixed to the orientation adjustment plate, the air pump is connected to the air pipe through the rubber hose, the third motor is fixed to the orientation adjustment plate through screws, the driving wheel is fixedly mounted on the output shaft of the third motor, the driving wheel is transmission-connected to the driven wheel through the transmission belt, and the driven wheel is fixed to the air pipe. When cleaning, the air flow is delivered into the air pipe through the air pump, and the air flow is ejected through the air nozzle, and at the same time, the driving wheel is driven to rotate back and forth through the third motor, the driven wheel is driven to rotate back and forth through the driving wheel, and the air pipe is driven to rotate back and forth through the driven wheel, so that the air pipe drives the air nozzle to pass through the lower side of the LED lighting lamp, and the air flow ejected from the air nozzle cleans up the dust attached to the light-emitting board of the LED lighting lamp.

[0013] The beneficial effects of the present invention are: 1. The lighting device for sports stadiums with adjustable illumination angle, when in use, fixes the connecting frame to the roof of the sports stadium by bolts, illuminates the interior of the sports stadium by LED lighting lamps, drives the threaded rod to rotate by the output shaft of the first motor, drives the threaded sleeve to move by the rotation of the threaded rod, drives the rack to move by the movement of the threaded sleeve, drives the first cylindrical gear to rotate by the movement of the rack, drives the first support shaft to rotate by the rotation of the first cylindrical gear, drives the angle adjustment plate to rotate by the rotation of the first support shaft, drives the direction adjustment plate and the LED lighting lamp to rotate forward and backward by the rotation of the angle adjustment plate, thereby adjusting the illumination angle of the LED lighting lamp; 2. The output shaft of the second motor drives the second cylindrical gear to rotate, the second cylindrical gear drives the third cylindrical gear to rotate, the third cylindrical gear drives the second support shaft to rotate, the second support shaft drives the direction adjustment plate to rotate, and the direction adjustment plate drives the LED lighting lamp to rotate left and right, thereby adjusting the irradiation direction of the LED lighting lamp; 3. When the LED lighting lamp is in use, the heat of the LED lighting lamp is absorbed by the coolant, and the heat on the coolant is dissipated outward through multiple heat dissipation fins to prevent the LED lighting lamp from overheating and increase the service life of the LED lighting lamp; 4. After a period of use, the air pump delivers air to the air pipe, and the air is ejected through the air nozzle. At the same time, the third motor drives the driving wheel to rotate back and forth, the driving wheel drives the driven wheel to rotate back and forth, and the driven wheel drives the air pipe to rotate back and forth, so that the air pipe drives the air nozzle to pass through the lower side of the LED lighting lamp, and the air ejected from the air nozzle cleans up the dust attached to the light-emitting board of the LED lighting lamp.

[0014] In summary, the present invention is convenient for adjusting the irradiation angle and direction of light; has good heat dissipation performance for the lamp, thereby increasing the service life; is convenient for cleaning the lamp, thereby reducing the influence of dust on the light of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the back structure of the present invention.

[0017] Figure 3 It is a schematic diagram of the installation and use status of the present invention.

[0018] Figure 4 It is a schematic diagram of the partial structure of the present invention Figure 1 .

[0019] Figure 5 It is a schematic diagram of the partial structure of the present invention Figure 2 .

[0020] Figure 6 It is a schematic diagram of the partial structure of the present invention Figure 3 .

[0021] Figure 7 It is a schematic diagram of the partial structure of the present invention Figure 4 .

[0022] Figure 8 It is a schematic diagram of the partial structure of the present invention Figure 5 .

[0023] Fig. 9 It is a schematic diagram of the partial structure of the present invention Figure 6 .

[0024] Fig.10 For the present invention Fig. 9 Internal cross-sectional view of .

[0025] Legend: 1. Connecting frame; 101. Mounting hole; 2. Angle adjustment plate; 201. First support shaft; 3. Direction adjustment plate; 301. Second support shaft; 4. LED lighting lamp; 5. Angle adjustment mechanism; 501. First motor; 502. Threaded rod; 503. Threaded sleeve; 504. Rack; 505. First cylindrical gear; 506. Slider; 507. Linear guide rail; 6. Rotation adjustment mechanism; 601. Second motor; 602. Second cylindrical gear; 603. Third cylindrical gear; 7. Auxiliary heat dissipation mechanism; 701. Heat exchange shell; 702. Heat dissipation fins; 703. Coolant; 8. Automatic dust cleaning mechanism; 801. Air pipe; 802. Air nozzle; 803. Air pump; 804. Rubber hose; 805. Third motor; 806. Driving wheel; 807. Driven wheel; 808. Transmission belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Specific examples are given below.

[0028] See also Figures 1 to 10In an embodiment of the present invention, a lighting device for a sports stadium with adjustable illumination angle includes a connecting frame 1, an angle adjustment plate 2, a direction adjustment plate 3, an LED lighting lamp 4, an angle adjustment mechanism 5, a rotation adjustment mechanism 6, an auxiliary heat dissipation mechanism 7 and an automatic dust cleaning mechanism 8. The connecting frame 1 is provided with a plurality of mounting holes 101 for bolts to pass through. During installation, the bolts are passed through the mounting holes 101 and fixed to the roof of the sports stadium of the university, thereby fixing the connecting frame 1. The connecting frame 1 is provided with an angle adjustment plate 2, and a first support shaft 201 is fixedly connected to the angle adjustment plate 2. Both ends of the first support shaft 201 are passed through bearings. The connecting frame 1 is rotatably connected to the connecting frame 1, and an angle adjustment mechanism 5 for driving the first support shaft 201 and the angle adjustment plate 2 to rotate is installed in the connecting frame 1. A direction adjustment plate 3 is arranged on the lower side of the angle adjustment plate 2, and a second support shaft 301 is fixed on the upper side of the direction adjustment plate 3. Both ends of the second support shaft 301 are rotatably connected to the angle adjustment plate 2 through bearings. The LED lighting lamp 4 is arranged on the lower side of the direction adjustment plate 3, and the LED lighting lamp 4 is detachably fixed to the direction adjustment plate 3 by screws. A rotation adjustment mechanism 6 for driving the second support shaft 301 and the direction adjustment plate 3 to rotate is installed on the lower side of the angle adjustment plate 2. The LED lighting lamp 4 An auxiliary heat dissipation mechanism 7 is installed on the back side of the LED lamp 4 to dissipate heat through the auxiliary heat dissipation mechanism 7, thereby improving the service life of the LED lamp 4. An automatic dust cleaning mechanism 8 is installed on the direction adjustment plate 3, and the automatic dust cleaning mechanism 8 cleans the light-emitting panel of the LED lamp 4. When in use, the connecting frame 1 is fixed to the roof of the university's sports stadium by bolts, and the interior of the sports stadium is illuminated by the LED lamp 4. The first support shaft 201 and the angle adjustment plate 2 are driven to rotate forward and backward by the angle adjustment mechanism 5, and the direction adjustment plate 3 and the LED lamp 4 are driven to rotate forward and backward by the angle adjustment plate 2, thereby adjusting L The irradiation angle of the ED lamp 4 is adjusted by rotating the adjustment mechanism 6 to drive the second support shaft 301 to rotate, and the adjustment plate 3 is driven to rotate left and right by the second support shaft 301, and the LED lamp 4 is driven to rotate left and right by the adjustment plate 3, so as to adjust the irradiation direction of the LED lamp 4 so as to control the light of the LED lamp 4. When the LED lamp 4 is in use, the auxiliary heat dissipation mechanism 7 is used to dissipate heat for it to reduce the temperature of the LED lamp 4 and increase the service life of the LED lamp 4. After a period of use, the light-emitting panel of the LED lamp 4 can be cleaned by the automatic cleaning mechanism 8.

[0029] The angle adjustment mechanism 5 includes: a first motor 501, a threaded rod 502, a threaded sleeve 503, a rack 504, a first cylindrical gear 505, a slider 506 and a linear slide rail 507. The first motor 501 is fixed in the connecting frame 1. The first motor 501 is detachably fixed to the connecting frame 1 by screws. No threads are arranged at both ends of the threaded rod 502. Both ends of the threaded rod 502 are rotatably connected to the connecting frame 1 by bearings. The output shaft of the first motor 501 is fixed to the threaded rod 502 through a coupling. A threaded sleeve 503 is installed on the threaded rod 502. A rack 504 is fixed to the lower side of the threaded sleeve 503. A first cylindrical gear 505 meshing with the rack 504 is arranged on the lower side of the rack 504. The first cylindrical gear 505 is fixedly installed on the first support shaft 2 01, a slider 506 is fixed on the upper side of the threaded sleeve 503, and the slider 506 is slidably installed on the linear slide rail 507, and the linear slide rail 507 is fixed to the connecting frame 1 by screws. When in use, the output shaft of the first motor 501 drives the threaded rod 502 to rotate, and the threaded sleeve 503 is moved by the rotation of the threaded rod 502, and the rack 504 is moved by the movement of the threaded sleeve 503, and the first cylindrical gear 505 is rotated by the movement of the rack 504, and the first cylindrical gear 505 is rotated to drive the first support shaft 201 to rotate, and the angle adjustment plate 2 is driven to rotate by the rotation of the first support shaft 201, and the direction adjustment plate 3 and the LED lighting lamp 4 are rotated back and forth by the rotation of the angle adjustment plate 2, so as to adjust the illumination angle of the LED lighting lamp 4.

[0030] The rotation adjustment mechanism 6 includes: a second motor 601, a second cylindrical gear 602 and a third cylindrical gear 603. The second motor 601 is fixed to the lower side of the angle adjustment plate 2. The second motor 601 is detachably fixed to the angle adjustment plate 2 by screws. The second cylindrical gear 602 is fixedly installed on the output shaft of the second motor 601. A third cylindrical gear 603 meshing with the second cylindrical gear 602 is provided on one side of the second cylindrical gear 602. The third cylindrical gear 603 is fixedly installed on the second support shaft 301. When in use, the second cylindrical gear 602 is driven to rotate by the output shaft of the second motor 601, and the third cylindrical gear 603 is driven to rotate by the rotation of the second cylindrical gear 602. The second support shaft 301 is driven to rotate by the rotation of the third cylindrical gear 603. The rotation of the second support shaft 301 drives the adjustment plate 3 to rotate. The rotation of the adjustment plate 3 drives the LED lighting lamp 4 to rotate left and right, thereby adjusting the illumination direction of the LED lighting lamp 4.

[0031] The auxiliary heat dissipation mechanism 7 includes: a heat exchange shell 701, heat dissipation fins 702 and coolant 703. The heat exchange shell 701 is adhered and fixed to the LED lighting lamp 4 by glue. Multiple heat dissipation fins 702 are fixed on the left and right sides of the heat exchange shell 701. The heat exchange shell 701 is filled with coolant 703. The coolant 703 has a large specific heat capacity and can absorb more heat. The heat exchange shell 701 and the heat dissipation fins 702 are both made of copper, so that they have good thermal conductivity. When in use, the heat of the LED lighting lamp 4 is absorbed by the coolant 703, and the heat on the coolant 703 is dissipated outward through the multiple heat dissipation fins 702.

[0032] The automatic dust cleaning mechanism 8 includes: an air pipe 801, an air nozzle 802, an air pump 803, a rubber hose 804, a third motor 805, a driving wheel 806, a driven wheel 807 and a transmission belt 808. The air pipe 801 is rotatably connected to the direction adjustment plate 3 through a bearing, a plurality of air nozzles 802 are arranged on the air pipe 801, the air pump 803 is fixed on the direction adjustment plate 3, and the air pump 803 is connected to the air pipe 801 through a rubber hose 804. The third motor 805 is fixed to the direction adjustment plate 3 through screws, and a driving wheel 806 is fixedly installed on the output shaft of the third motor 805. The driving wheel 806 is transmitted to the driven wheel 807 through a transmission belt 808. The driven wheel 807 is dynamically connected to the air pipe 801, and the air pipe 801 is parked on one side of the LED lighting lamp 4 when not in use. When cleaning, the air flow is transported into the air pipe 801 through the air pump 803, and the air flow is ejected through the air nozzle 802. At the same time, the driving wheel 806 is driven to rotate back and forth through the third motor 805, and the driven wheel 806 drives the driven wheel 807 to rotate back and forth, and the driven wheel 807 drives the air pipe 801 to rotate back and forth, so that the air pipe 801 drives the air nozzle 802 to pass through the lower side of the LED lighting lamp 4, and the air flow ejected by the air nozzle 802 cleans away the dust attached to the light-emitting panel of the LED lighting lamp 4.

[0033] The LED lighting lamp 4, the first motor 501, the second motor 601, the air pump 803, and the third motor 805 are all purchased as existing technology products, and the relevant controllers are attached when purchased. The controllers of the above-mentioned electrical components are installed side by side in the gymnasium, and each controller is connected to each electrical component by a wire for control and use.

[0034] Working principle: When the lighting device for sports stadiums with adjustable illumination angle is used, the connecting frame 1 is fixed to the roof of the sports stadium of the university by bolts, and the interior of the sports stadium is illuminated by the LED lighting lamp 4. The threaded rod 502 is driven to rotate by the output shaft of the first motor 501, and the threaded sleeve 503 is driven to move by the rotation of the threaded rod 502, and the rack 504 is driven to move by the movement of the threaded sleeve 503, and the first cylindrical gear 505 is driven to rotate by the movement of the rack 504, and the first cylindrical gear 505 is driven to rotate by the rotation of the first supporting shaft 201, and the angle adjustment plate 2 is driven to rotate by the rotation of the first supporting shaft 201, and the direction adjustment plate 3 and the LED lighting lamp 4 are driven to rotate forward and backward by the rotation of the angle adjustment plate 2, so as to adjust the illumination angle of the LED lighting lamp 4; The output shaft of the second motor 601 drives the second cylindrical gear 602 to rotate, the rotation of the second cylindrical gear 602 drives the third cylindrical gear 603 to rotate, the rotation of the third cylindrical gear 603 drives the second support shaft 301 to rotate, the rotation of the second support shaft 301 drives the adjustment plate 3 to rotate, and the rotation of the adjustment plate 3 drives the LED lighting lamp 4 to rotate left and right, thereby adjusting the irradiation direction of the LED lighting lamp 4; When the LED lighting lamp 4 is in use, the heat of the LED lighting lamp 4 is absorbed by the coolant 703, and the heat on the coolant 703 is dissipated outwards through the plurality of heat dissipation fins 702, so as to prevent the LED lighting lamp 4 from overheating and increase the service life of the LED lighting lamp 4; After a period of use, air is delivered to the air pipe 801 through the air pump 803, and the air is ejected through the air nozzle 802. At the same time, the third motor 805 drives the driving wheel 806 to rotate back and forth, and the driving wheel 806 drives the driven wheel 807 to rotate back and forth, and the driven wheel 807 drives the air pipe 801 to rotate back and forth, so that the air pipe 801 drives the air nozzle 802 to pass through the lower side of the LED lighting lamp 4, and the air ejected by the air nozzle 802 cleans away the dust attached to the light-emitting panel of the LED lighting lamp 4.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lighting device for sports stadiums with adjustable illumination angle, characterized in that: The invention comprises a connecting frame (1), an angle adjustment plate (2), a direction adjustment plate (3), an LED lighting lamp (4), an angle adjustment mechanism (5), a rotation adjustment mechanism (6), an auxiliary heat dissipation mechanism (7) and an automatic dust cleaning mechanism (8), wherein the connecting frame (1) is provided with the angle adjustment plate (2), a first support shaft (201) is fixedly connected to the angle adjustment plate (2), both ends of the first support shaft (201) are rotatably connected to the connecting frame (1) via bearings, the connecting frame (1) is provided with the angle adjustment mechanism (5) for driving the first support shaft (201) and the angle adjustment plate (2) to rotate, the lower side of the angle adjustment plate (2) is provided with the direction adjustment plate (3), the direction adjustment plate (3) is provided with a plurality of support shafts (201) and a plurality of support shafts (201) connected to the connecting frame ( ... A second support shaft (301) is fixed on the upper side, and both ends of the second support shaft (301) are rotatably connected to the angle adjustment plate (2) via bearings. The LED lighting lamp (4) is arranged on the lower side of the orientation adjustment plate (3), and the LED lighting lamp (4) is detachably fixed to the orientation adjustment plate (3) via screws. The lower side of the angle adjustment plate (2) is provided with the rotation adjustment mechanism (6) for driving the second support shaft (301) and the orientation adjustment plate (3) to rotate. The back side of the LED lighting lamp (4) is provided with the auxiliary heat dissipation mechanism (7), and the orientation adjustment plate (3) is provided with the automatic dust cleaning mechanism (8), and the automatic dust cleaning mechanism (8) cleans the light emitting panel of the LED lighting lamp (4).

2. The lighting device for sports stadiums with adjustable illumination angle according to claim 1, characterized in that: The connection frame (1) is provided with a plurality of mounting holes (101) for bolts to pass through.

3. The lighting device for sports stadiums with adjustable illumination angle according to claim 1, characterized in that: The angle adjustment mechanism (5) comprises: a first motor (501), a threaded rod (502), a threaded sleeve (503), a rack (504), a first cylindrical gear (505), a slider (506) and a linear slide rail (507).

4. The lighting device for sports stadiums with adjustable illumination angle according to claim 3, characterized in that: The first motor (501) is fixed in the connecting frame (1); the first motor (501) is detachably fixed to the connecting frame (1) by means of screws; no threads are arranged at both ends of the threaded rod (502); both ends of the threaded rod (502) are rotatably connected to the connecting frame (1) by means of bearings; the output shaft of the first motor (501) is fixed to the threaded rod (502) by means of a coupling; a threaded sleeve (503) is installed on the threaded rod (502); The rack (504) is fixed to the lower side of the sleeve (503), the lower side of the rack (504) is provided with the first cylindrical gear (505) meshing therewith, the first cylindrical gear (505) is fixedly mounted on the first supporting shaft (201), the upper side of the threaded sleeve (503) is fixed with the slider (506), the slider (506) is slidably mounted on the linear guide rail (507), and the linear guide rail (507) is fixed to the connecting frame (1) by means of screws.

5. The lighting device for sports stadiums with adjustable illumination angle according to claim 1, characterized in that: The rotation adjustment mechanism (6) comprises: a second motor (601), a second cylindrical gear (602) and a third cylindrical gear (603); the second motor (601) is fixed to the lower side of the angle adjustment plate (2); the second motor (601) is detachably fixed to the angle adjustment plate (2) by means of screws; the second cylindrical gear (602) is fixedly mounted on the output shaft of the second motor (601); a third cylindrical gear (603) meshing with the second cylindrical gear (602) is provided on one side of the second cylindrical gear (602); and the third cylindrical gear (603) is fixedly mounted on the second support shaft (301).

6. The lighting device for sports stadiums with adjustable illumination angle according to claim 1, characterized in that: The auxiliary heat dissipation mechanism (7) comprises: a heat exchange shell (701), heat dissipation fins (702) and a coolant (703); the heat exchange shell (701) is bonded and fixed to the LED lighting lamp (4) by glue; a plurality of heat dissipation fins (702) are fixed on both left and right sides of the heat exchange shell (701); and the heat exchange shell (701) is filled with the coolant (703).

7. The lighting device for sports stadiums with adjustable illumination angle according to claim 6, characterized in that: The heat exchange shell (701) and the heat dissipation fins (702) are both made of copper.

8. The lighting device for sports stadiums with adjustable illumination angle according to claim 1, characterized in that: The automatic dust cleaning mechanism (8) comprises: an air delivery pipe (801), an air nozzle (802), an air delivery pump (803), a rubber hose (804), a third motor (805), a driving wheel (806), a driven wheel (807), and a transmission belt (808).

9. The lighting device for sports stadiums with adjustable illumination angle according to claim 8, characterized in that: The air delivery pipe (801) is rotatably connected to the orientation adjustment plate (3) via a bearing; a plurality of air nozzles (802) are provided on the air delivery pipe (801); the air delivery pump (803) is fixed to the orientation adjustment plate (3); the air delivery pump (803) is connected to the air delivery pipe (801) via the rubber hose (804); the third motor (805) is fixed to the orientation adjustment plate (3) via screws; the driving wheel (806) is fixedly mounted on the output shaft of the third motor (805); the driving wheel (806) is transmission-connected to the driven wheel (807) via the transmission belt (808); and the driven wheel (807) is fixed to the air delivery pipe (801).

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