Safety warning device for photovoltaic power construction

Abstract

The invention belongs to the technical field of power construction, and discloses a safety warning device for photovoltaic power construction. Comprising a warning board and a base, the base is fixedly connected to the bottom of the warning board, the warning board further comprises a plurality of rectangular openings, the rectangular openings are formed in the warning board, an opening and closing assembly used for closing and opening the rectangular openings is arranged in the warning board, and a counterweight assembly used for increasing the weight of the base is arranged at the bottom of the base. By arranging the opening and closing assembly, in strong wind weather, in order to prevent the warning board from being blown down, a connecting plate and a U-shaped rod move downwards, the U-shaped rod drives a plurality of rectangular plates to move downwards through the connecting rod, the rectangular plates relieve blocking of a rectangular opening, the rectangular opening is in an open state, and wind can pass through the rectangular opening oppositely; the wind area of the warning board is reduced, the stability of the warning board is enhanced, and by arranging the rectangular frame and the connecting net, the warning board can be used as a stretcher when a person is injured on a construction site, and the wounded person can be transferred in time.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power construction, and more specifically, to a safety warning device for photovoltaic electric power construction. Background Art

[0002] At present, photovoltaic power construction is usually carried out in a complex outdoor environment. Photovoltaic power stations usually occupy a large area and the construction areas are scattered. Effective safety warning devices are needed to remind and warn construction workers and passers-by. Due to the uncertainty of the outdoor construction environment, the warning devices also need to have a certain stability. For example, the warning devices need to resist strong winds and prevent lodging.

[0003] The current warning device is usually composed of a base and a warning sign. The warning device is placed near the construction site through the base for warning purposes. The current warning device has poor wind resistance. When there is strong wind, the warning device is easily blown down due to the large wind-exposed area of ​​the warning sign, making it inconvenient to use. Summary of the invention

[0004] The present invention is to solve the problem of poor wind resistance of current warning devices in the background technology, and proposes a safety warning device for photovoltaic power construction.

[0005] To achieve the above object, the present invention provides the following technical solution: a safety warning device for photovoltaic power construction, comprising a warning sign and a base, wherein the base is fixedly connected to the bottom of the warning sign, and further comprising: A plurality of rectangular openings are provided on the warning sign, an opening and closing assembly for closing and opening the rectangular openings is provided in the warning sign, and a counterweight assembly for increasing the weight of the base is provided at the bottom of the base; The counterweight assembly includes a counterweight seat fixedly connected to the bottom of the base, a circular cavity is arranged in the counterweight seat, a plurality of counterweight balls are arranged in the circular cavity, and the plurality of counterweight balls are evenly distributed in the circular cavity along the circumferential direction. A counterweight moving assembly for driving the counterweight balls to move is arranged in the base, a block is arranged between two adjacent counterweight balls, a releasing assembly for releasing the block is arranged in the base, and the releasing assembly is also used to drive the opening and closing assembly.

[0006] Furthermore, the opening and closing assembly includes a plurality of rectangular plates located in the rectangular opening, connecting rods are fixedly connected between the rectangular plates, wherein the bottom ends of two connecting rods are fixedly connected to U-shaped rods, and a connecting plate is fixedly connected between the two U-shaped rods.

[0007] Furthermore, the counterweight moving assembly includes a first annular plate arranged at the bottom of the annular cavity, a plurality of the counterweight balls are arranged on the first annular plate, a plurality of first connecting ropes are fixedly connected to the first annular plate, one end of the first connecting rope is fixedly connected to a first rotating shaft, the first rotating shaft is rotatably connected in the base, a half gear is fixedly connected to the outer wall of the first rotating shaft, a tooth plate is arranged in the base, the tooth plate can engage with one of the half gears when moving downward, and an elastic second connecting rope is fixedly connected between the counterweight ball and the inner wall of the annular cavity.

[0008] Furthermore, the release assembly includes a motor fixedly connected to the base, the output shaft of the motor is fixedly connected to the second rotating shaft, the outer wall of the second rotating shaft is fixedly connected to the first gear, the first rack and the second rack are respectively meshed on both sides of the first gear, the first rack is fixedly connected to the bottom of the connecting plate, the second rack is fixedly connected to the first cross bar, the bottom of the first cross bar is fixedly connected to the second circular plate, and the plurality of blocks are fixedly connected to the bottom of the second circular plate.

[0009] Furthermore, a wind direction rotation component for rotating following the wind direction is provided on the base, and the wind direction rotation component includes two third rotating shafts rotatably connected to the base, and the top ends of the third rotating shafts are fixedly connected to wind direction blocks, and the weights of the two ends of the wind direction blocks are inconsistent. The outer wall of the third rotating shaft is fixedly connected to a friction ring abutting against the base.

[0010] Furthermore, a second gear is fixedly connected to the bottom end of the third rotating shaft, a ring gear is meshed on the outer side of the second gear, a lifting ring is fixedly connected to the ring gear, the top of the lifting ring is rotatably connected to a rotating ring, a third connecting rope is fixedly connected to the top of the rotating ring, and a second cross bar is fixedly connected to the first rack.

[0011] Furthermore, a rectangular cavity is provided in the warning sign, a plurality of slide rails are fixedly connected in the rectangular cavity, a rectangular frame is slidably connected between corresponding two of the slide rails, a connecting net is fixedly connected to the rectangular frame, and a connecting cover is hingedly connected to the side wall of the warning sign.

[0012] The technical effects and advantages of the safety warning device for photovoltaic power construction of the present invention are as follows: (1) By setting up an opening and closing component, in order to prevent the warning sign from being blown down in strong winds, the connecting plate and the U-shaped rod move downward. The U-shaped rod drives the multiple rectangular plates to move downward through the connecting rod, so that the rectangular plates release the obstruction of the rectangular opening. The rectangular opening is in an open state, and the wind can pass through the rectangular opening, which reduces the wind-exposed area of ​​the warning sign, thereby enhancing the stability of the warning sign. By setting up a rectangular frame and a connecting net, it can be used as a stretcher when someone is injured at the construction site, so as to transfer the injured in time.

[0013] (2) By setting up the counterweight assembly, the counterweight seat and the counterweight ball can increase the weight of the device and enhance the stability of the device. When encountering strong wind weather, in order to prevent the warning sign from being blown down, the motor is started to drive the second shaft and the first gear to rotate. The first gear can drive the rectangular plate to move through the first rack. The first gear can also drive the first cross bar and the second circular plate to move through the second rack. The second circular plate drives the block to move upward. The block no longer blocks the counterweight ball. The first rack can also drive the toothed plate to move downward through the second cross bar. The toothed plate can drive the corresponding half gear to rotate. The half gear drives the first shaft to rotate and wrap the first connecting rope around its surface. The first connecting rope pulls the first circular plate to tilt the first circular plate. The counterweight ball can move to the lower end, that is, the counterweight ball moves in the direction of the wind, thereby increasing the weight of the counterweight seat facing the direction of the wind, thereby enhancing stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the warning sign, the connecting net and the rectangular plate in the present invention; Figure 3 It is a cross-sectional schematic diagram of the base and the counterweight seat in the present invention; Figure 4 It is a schematic diagram of a first partial three-dimensional structure in the present invention; Figure 5 It is a schematic diagram of a second partial three-dimensional structure in the present invention; Figure 6 For the present invention Figure 4 The enlarged schematic diagram at A in the middle; Figure 7 It is a cross-sectional schematic diagram of the warning sign in the present invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of point B in the middle.

[0015] In the figure: 1. Warning sign; 2. Base; 3. Rectangular opening; 4. Rectangular plate; 5. Connecting rod; 6. U-shaped rod; 7. Connecting plate; 8. Counterweight seat; 9. Annular cavity; 10. Counterweight ball; 11. First annular plate; 12. First connecting rope; 13. First rotating shaft; 14. Half gear; 15. Tooth plate; 16. Second connecting rope; 17. Motor; 18. Second rotating shaft; 19. First gear; 20. First rack; 21. Second rack; 22. First cross bar; 23. Second annular plate; 24. Stopper; 25. Third rotating shaft; 26. Wind direction block; 27. Friction ring; 28. Second gear; 29. ​​Ring gear; 30. Lifting ring; 31. Rotating ring; 32. Third connecting rope; 33. Second cross bar; 34. Rectangular cavity; 35. Slide rail; 36. Rectangular frame; 37. Connecting net; 38. Connecting cover. DETAILED DESCRIPTION

[0016] 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.

[0017] Reference Figure 1 - Figure 8 A safety warning device for photovoltaic power construction includes a warning sign 1 and a base 2, wherein the base 2 is fixedly connected to the bottom of the warning sign 1, and further includes: A plurality of rectangular openings 3 are provided on the warning sign 1. An opening and closing assembly for closing and opening the rectangular openings 3 is provided in the warning sign 1. A counterweight assembly for increasing the weight of the base 2 is provided at the bottom of the base 2. When in use, the warning sign 1 is set near the photovoltaic power construction site to remind passers-by. When encountering strong winds, in order to prevent the wind from blowing down the warning sign 1, the rectangular opening 3 is opened by the opening and closing component, and the wind can pass through the rectangular opening 3, thereby reducing the wind-exposed area of ​​the warning sign 1. By setting a counterweight component, the weight of the warning sign 1 can be increased, thereby enhancing the stability of the warning sign 1.

[0018] Reference Figure 2 and Figure 3 The opening and closing assembly includes a plurality of rectangular plates 4 located in the rectangular opening 3, and connecting rods 5 are fixedly connected between the rectangular plates 4, wherein the bottom ends of two connecting rods 5 are fixedly connected to U-shaped rods 6, and a connecting plate 7 is fixedly connected between the two U-shaped rods 6; when it is necessary to open the rectangular opening 3 to reduce the wind-receiving area of ​​the warning sign 1, the connecting plate 7 is moved downward, and the connecting plate 7 drives the plurality of rectangular plates 4 to move downward at the same time through the U-shaped rod 6 and the connecting rod 5, so that the rectangular plates 4 no longer block the rectangular opening 3, and the rectangular opening 3 is in an open state, and wind can pass through the rectangular opening 3. When it is necessary to close the rectangular opening 3, the connecting plate 7 is reset upward, and the rectangular plate 4 blocks the rectangular opening 3 again.

[0019] Reference Figure 1 , Figure 3 and Figure 5The counterweight assembly includes a counterweight seat 8 fixedly connected to the bottom of the base 2, a circular cavity 9 is arranged in the counterweight seat 8, a plurality of counterweight balls 10 are arranged in the circular cavity 9, and the plurality of counterweight balls 10 are evenly distributed in the circular cavity 9 along the circumferential direction, a counterweight moving assembly for driving the counterweight balls 10 to move is arranged in the base 2, a block 24 is arranged between two adjacent counterweight balls 10, a release assembly for releasing the block 24 is arranged in the base 2, and the release assembly is also used to drive the opening and closing assembly; by arranging the counterweight seat 8 and the counterweight balls 10, the weight of the warning sign 1 can be increased, thereby enhancing the stability of the warning sign 1, and the blocking of the block 24 to the counterweight ball 10 can be released by the release assembly, so that the counterweight ball 10 can move in the circular cavity 9, and the counterweight ball 10 moves in the wind direction, and the center of gravity of the counterweight seat 8 is biased toward the wind direction to resist the wind force, thereby further enhancing the stability of the warning sign 1.

[0020] Reference Figure 4 and Figure 5 The counterweight moving assembly includes a first annular plate 11 arranged at the bottom of the annular cavity 9, a plurality of the counterweight balls 10 are arranged on the first annular plate 11, a plurality of first connecting ropes 12 are fixedly connected to the first annular plate 11, one end of the first connecting rope 12 is fixedly connected to a first rotating shaft 13, the first rotating shaft 13 is rotatably connected in the base 2, a half gear 14 is fixedly connected to the outer wall of the first rotating shaft 13, a tooth plate 15 is arranged in the base 2, the tooth plate 15 can mesh with one of the half gears 14 when it moves downward, and an elastic second connecting rope 16 is fixedly connected between the counterweight ball 10 and the inner wall of the annular cavity 9; when strong wind blows toward the warning sign 1 from a certain direction, the blocking restriction on the counterweight ball 10 is first released by driving the stopper 24 of the release assembly, so that the tooth plate 15 rotates to a certain half gear 14 (because the arc length of the tooth plate 15 is greater than the arc length between two adjacent half gears 14). The tooth plate 15 is long, so no matter what angle the tooth plate 15 rotates to, the tooth plate 15 can always be kept moving downward and meshing with one of the half gears 14), the position of the half gear 14 is on the leeward side, so that the tooth plate 15 moves downward, the tooth plate 15 can drive the half gear 14 to rotate, and the half gear 14 drives the first rotating shaft 13 to rotate. The first rotating shaft 13 can wrap the first connecting rope 12 around its surface, and the first circular plate 11 can be pulled by the first connecting rope 12, so that the first circular plate 11 is in an inclined state and tilted in the direction of the wind. Under the action of gravity, the counterweight ball 10 will tilt in the direction of the wind, so that the center of gravity of the counterweight seat 8 is shifted in the direction of the wind. When the wind is strong, the center of gravity is shifted in the direction of the wind to enhance the stability of the warning sign 1. When the strong wind ends, the counterweight ball 10 returns to the vicinity of the original position under the action of the second connecting rope 16, so that the block 24 is reset downward, and the block 24 can prompt the counterweight ball 10 to reset.

[0021] Reference Figure 4 , Figure 5 and Figure 6 The release assembly includes a motor 17 fixedly connected to the base 2, the output shaft of the motor 17 is fixedly connected to the second rotating shaft 18, the outer wall of the second rotating shaft 18 is fixedly connected to the first gear 19, the first gear 19 is respectively meshed with a first rack 20 and a second rack 21, the first rack 20 is fixedly connected to the bottom of the connecting plate 7, the second rack 21 is fixedly connected to the first cross bar 22, the bottom of the first cross bar 22 is fixedly connected to the second circular plate 23, and the plurality of stoppers 24 are fixedly connected to the bottom of the second circular plate 23; when it is necessary to drive the opening and closing assembly and the stoppers 24, Start the motor 17, the motor 17 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the first gear 19 to rotate, the first gear 19 drives the first rack 20 to move downward, the first rack 20 drives the connecting plate 7 to move downward, thereby driving the rectangular plate 4 to leave the rectangular opening 3, the first gear 19 can also drive the second rack 21 to move upward, the second rack 21 drives the first cross bar 22 to move upward, the first cross bar 22 drives the second circular plate 23 to move upward, the second circular plate 23 drives multiple blocks 24 to move upward, thereby releasing the blocking restriction of the block 24 on the counterweight ball 10.

[0022] Reference Figure 1 , Figure 4 and Figure 6 The base 2 is provided with a wind direction rotating component for rotating with the wind direction, and the wind direction rotating component includes two third rotating shafts 25 rotatably connected to the base 2, and a wind direction block 26 is fixedly connected to the top of the third rotating shaft 25. The weights of the two ends of the wind direction block 26 are inconsistent, and the outer wall of the third rotating shaft 25 is fixedly connected to a friction ring 27 abutting against the base 2; when there is a weak wind blowing towards the warning sign 1, due to the friction between the friction ring 27 and the base 2, the wind cannot blow the wind direction block 26 to rotate, and when a strong wind blows towards the warning sign 1, the strong wind can overcome the friction between the friction ring 27 and the base 2 to blow the wind direction block 26 to rotate. Since the weights of the two ends of the wind direction block 26 are inconsistent, the strong wind can blow the wind direction block 26 so that it always points to the direction of the wind.

[0023] Reference Figure 4 and Figure 6, the bottom end of the third rotating shaft 25 is fixedly connected to a second gear 28, the outer side of the second gear 28 is meshed with a ring gear 29, a lifting ring 30 is fixedly connected to the ring gear 29, the top of the lifting ring 30 is rotatably connected to a rotating ring 31, the top of the rotating ring 31 is fixedly connected to a third connecting rope 32, the top of the third connecting rope 32 is fixedly connected to a second cross bar 33, and the second cross bar 33 is fixedly connected to the first rack 20; when strong wind blows the wind direction block 26, the wind direction block 26 will rotate and keep pointing in the direction of the wind, the wind direction block 26 drives the third rotating shaft 25 to rotate, the third rotating shaft 25 drives the second gear 28 to rotate, the second gear 28 drives the ring gear 29 to rotate, the ring gear 29 drives the lifting ring 30 to rotate, and the lifting ring 30 drives the tooth plate 15 to rotate, so that the tooth plate 15 rotates to the leeward side, (by setting the second gear The gear ratio of the wheel 28 and the ring gear 29 can achieve that the second gear 28 rotates a smaller angle to drive the ring gear 29 to rotate a larger angle, thereby rotating the toothed plate 15 in place). During the rotation of the lifting ring 30, the rotating ring 31 remains stationary. When the motor 17 drives the first rack 20 to move downward, the first rack 20 can also drive the second cross bar 33 to move downward. The third connecting rope 32, the rotating ring 31, the lifting ring 30 and the toothed plate 15 all move downward until the toothed plate 15 engages with the corresponding half gear 14, and the second cross bar 33 continues to move downward. The second cross bar 33 will contact the top of the rotating ring 31, so that the second cross bar 33 continues to move downward. The second cross bar 33 can drive the toothed plate 15 to move downward, thereby driving the half gear 14 on the leeward side to rotate, so that the first annular plate 11 tilts, and the purpose of shifting the center of gravity according to the wind direction is achieved.

[0024] Reference Figure 1 , Figure 7 and Figure 8 A rectangular cavity 34 is provided in the warning sign 1, and a plurality of slide rails 35 are fixedly connected in the rectangular cavity 34. A rectangular frame 36 is slidably connected between two corresponding slide rails 35, and a connecting net 37 is fixedly connected to the rectangular frame 36. A connecting cover 38 is hingedly connected to the side wall of the warning sign 1. When a person is injured at the construction site, the connecting cover 38 is opened, and the stretcher composed of the rectangular frame 36 and the connecting net 37 is slid out of the slide rail 35 of the rectangular cavity 34. The injured person can be transferred using the stretcher. When a strong wind blows toward the warning sign 1, the rectangular plate 4 leaves the rectangular opening 3. Since the connecting net 37 is provided, the connecting net 37 will not block the wind.

[0025] Working principle: When in use, the warning sign 1 is set near the photovoltaic power construction site to remind people passing by. When encountering strong winds, in order to prevent the wind from blowing down the warning sign 1, the rectangular opening 3 is opened by the opening and closing component, and the wind can pass through the rectangular opening 3, reducing the wind-receiving area of ​​the warning sign 1. By setting the counterweight component, the weight of the warning sign 1 can be increased, thereby enhancing the stability of the warning sign 1; When the rectangular opening 3 needs to be opened to reduce the wind-exposed area of ​​the warning sign 1, the connecting plate 7 moves downward, and the connecting plate 7 drives the plurality of rectangular plates 4 to move downward simultaneously through the U-shaped rod 6 and the connecting rod 5, so that the rectangular plates 4 no longer block the rectangular opening 3, and the rectangular opening 3 is in an open state, and wind can pass through the rectangular opening 3. When the rectangular opening 3 needs to be closed, the connecting plate 7 is reset upward, and the rectangular plates 4 block the rectangular opening 3 again; By providing the counterweight seat 8 and the counterweight ball 10, the weight of the warning sign 1 can be increased, thereby enhancing the stability of the warning sign 1. The blocking of the counterweight ball 10 by the block 24 can be released by releasing the assembly, so that the counterweight ball 10 can move in the annular cavity 9, and the counterweight ball 10 moves in the wind direction. The center of gravity of the counterweight seat 8 is biased toward the wind direction to resist the wind force, thereby further enhancing the stability of the warning sign 1. When strong wind blows toward the warning sign 1 from a certain direction, the blocking restriction of the counterweight ball 10 is first released by the release assembly driving block 24, so that the tooth plate 15 rotates to a certain half gear 14 (because the arc length of the tooth plate 15 is greater than the arc length between two adjacent half gears 14, no matter to which angle the tooth plate 15 rotates, the tooth plate 15 can always be kept moving downward and meshing with one of the half gears 14), the position of the half gear 14 is the leeward side, so that the tooth plate 15 moves downward, the tooth plate 15 can drive the half gear 14 to rotate, and the half gear 14 drives the first rotating shaft 13 to rotate, and the first rotating shaft 13 rotates. The rotating shaft 13 can wind the first connecting rope 12 around its surface, and the first circular plate 11 can be pulled by the first connecting rope 12, so that the first circular plate 11 is in an inclined state and tilted in the direction of the wind. Under the action of gravity, the counterweight ball 10 will tilt in the direction of the wind, so that the center of gravity of the counterweight seat 8 is shifted in the direction of the wind. When the wind is strong, the center of gravity is shifted in the direction of the wind to enhance the stability of the warning sign 1. When the strong wind ends, the counterweight ball 10 returns to the vicinity of the original position under the action of the second connecting rope 16, so that the stopper 24 is reset downward, and the stopper 24 can cause the counterweight ball 10 to reset. When it is necessary to drive the opening and closing assembly and the stopper 24, the motor 17 is started, the motor 17 drives the second rotating shaft 18 to rotate, the second rotating shaft 18 drives the first gear 19 to rotate, the first gear 19 drives the first rack 20 to move downward, the first rack 20 drives the connecting plate 7 to move downward, thereby driving the rectangular plate 4 to leave the rectangular opening 3, the first gear 19 can also drive the second rack 21 to move upward, the second rack 21 drives the first cross bar 22 to move upward, the first cross bar 22 drives the second annular plate 23 to move upward, the second annular plate 23 drives the multiple stoppers 24 to move upward, thereby releasing the blocking restriction of the stoppers 24 on the counterweight ball 10; When a weak wind blows toward the warning sign 1, the wind cannot blow the wind direction block 26 to rotate due to the friction between the friction ring 27 and the base 2. When a strong wind blows toward the warning sign 1, the strong wind can overcome the friction between the friction ring 27 and the base 2 to blow the wind direction block 26 to rotate. Since the weights at both ends of the wind direction block 26 are inconsistent, the strong wind can blow the wind direction block 26 to always point to the direction of the wind. When strong wind blows the wind direction block 26, the wind direction block 26 will rotate and keep pointing in the direction of the wind, the wind direction block 26 drives the third shaft 25 to rotate, the third shaft 25 drives the second gear 28 to rotate, the second gear 28 drives the ring gear 29 to rotate, the ring gear 29 drives the lifting ring 30 to rotate, the lifting ring 30 drives the tooth plate 15 to rotate, so that the tooth plate 15 rotates to the leeward side (by setting the gear ratio of the second gear 28 and the ring gear 29, it can be achieved that the second gear 28 rotates a smaller angle to drive the ring gear 29 to rotate a larger angle, so that the tooth plate 15 rotates in place), during the rotation process of the lifting ring 30 In the embodiment, the rotating ring 31 remains stationary. When the motor 17 drives the first rack 20 to move downward, the first rack 20 can also drive the second cross bar 33 to move downward. The third connecting rope 32, the rotating ring 31, the lifting ring 30 and the toothed plate 15 all move downward until the toothed plate 15 meshes with the corresponding half gear 14. The second cross bar 33 continues to move downward. The second cross bar 33 contacts the top of the rotating ring 31, so that the second cross bar 33 continues to move downward. The second cross bar 33 can drive the toothed plate 15 to move downward, thereby driving the half gear 14 on the leeward side to rotate, so that the first circular plate 11 tilts, and the purpose of shifting the center of gravity according to the wind direction is achieved. When someone is injured at the construction site, the connecting cover 38 is opened, and the stretcher consisting of the rectangular frame 36 and the connecting net 37 is slid out from the slide rail 35 of the rectangular cavity 34. The stretcher can be used to transfer the injured person. When strong wind blows towards the warning sign 1, the rectangular plate 4 leaves the rectangular opening 3. Since the connecting net 37 is set, the connecting net 37 will not block the wind.

[0026] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0027] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety warning device for photovoltaic power construction, comprising a warning sign (1) and a base (2), wherein the base (2) is fixedly connected to the bottom of the warning sign (1), characterized in that: Also includes: A plurality of rectangular openings (3), wherein the plurality of rectangular openings (3) are provided on the warning sign (1), an opening and closing assembly for closing and opening the rectangular openings (3) is provided in the warning sign (1), and a counterweight assembly for increasing the weight of the base (2) is provided at the bottom of the base (2); The counterweight assembly comprises a counterweight seat (8) fixedly connected to the bottom of the base (2), the counterweight seat (8) being provided with an annular cavity (9), a plurality of counterweight balls (10) being provided in the annular cavity (9), the plurality of counterweight balls (10) being evenly distributed in the annular cavity (9) along the circumferential direction, a counterweight moving assembly for driving the counterweight balls (10) to move being provided in the base (2), a stopper (24) being provided between two adjacent counterweight balls (10), a releasing assembly for releasing the stopper (24) being provided in the base (2), and the releasing assembly is also used to drive the opening and closing assembly.

2. A safety warning device for photovoltaic power construction according to claim 1, characterized in that: The opening and closing assembly comprises a plurality of rectangular plates (4) located in the rectangular opening (3), connecting rods (5) being fixedly connected between the rectangular plates (4), wherein the bottom ends of two connecting rods (5) are fixedly connected to U-shaped rods (6), and a connecting plate (7) is fixedly connected between the two U-shaped rods (6).

3. A safety warning device for photovoltaic power construction according to claim 2, characterized in that: The counterweight moving assembly comprises a first annular plate (11) arranged at the bottom of the annular cavity (9), a plurality of the counterweight balls (10) are arranged on the first annular plate (11), a plurality of first connecting ropes (12) are fixedly connected to the first annular plate (11), one end of the first connecting rope (12) is fixedly connected to a first rotating shaft (13), the first rotating shaft (13) is rotatably connected in the base (2), a half gear (14) is fixedly connected to the outer wall of the first rotating shaft (13), a tooth plate (15) is arranged in the base (2), the tooth plate (15) can mesh with one of the half gears (14) when moving downward, and an elastic second connecting rope (16) is fixedly connected between the counterweight ball (10) and the inner wall of the annular cavity (9).

4. A safety warning device for photovoltaic power construction according to claim 3, characterized in that: The release assembly comprises a motor (17) fixedly connected to the base (2); the output shaft of the motor (17) is fixedly connected to a second rotating shaft (18); the outer wall of the second rotating shaft (18) is fixedly connected to a first gear (19); the first gear (19) is respectively meshed with a first rack (20) and a second rack (21); the first rack (20) is fixedly connected to the bottom of the connecting plate (7); the second rack (21) is fixedly connected to a first cross bar (22); the bottom of the first cross bar (22) is fixedly connected to a second circular plate (23); and a plurality of stoppers (24) are fixedly connected to the bottom of the second circular plate (23).

5. A safety warning device for photovoltaic power construction according to claim 4, characterized in that: The base (2) is provided with a wind direction rotating assembly for rotating in accordance with the wind direction, the wind direction rotating assembly comprising two third rotating shafts (25) rotatably connected to the base (2), the top ends of the third rotating shafts (25) being fixedly connected to wind direction blocks (26), the weights of the two ends of the wind direction blocks (26) being inconsistent, and the outer wall of the third rotating shaft (25) being fixedly connected to a friction ring (27) abutting against the base (2).

6. A safety warning device for photovoltaic power construction according to claim 5, characterized in that: A second gear (28) is fixedly connected to the bottom end of the third rotating shaft (25); a ring gear (29) is meshed on the outer side of the second gear (28); a lifting ring (30) is fixedly connected to the ring gear (29); a rotating ring (31) is rotatably connected to the top of the lifting ring (30); a third connecting rope (32) is fixedly connected to the top of the rotating ring (31); a second cross bar (33) is fixedly connected to the top end of the third connecting rope (32); and the second cross bar (33) is fixedly connected to the first rack (20).

7. A safety warning device for photovoltaic power construction according to claim 6, characterized in that: A rectangular cavity (34) is provided in the warning sign (1), a plurality of slide rails (35) are fixedly connected in the rectangular cavity (34), a rectangular frame (36) is slidably connected between two corresponding slide rails (35), a connecting net (37) is fixedly connected to the rectangular frame (36), and a connecting cover (38) is hingedly connected to the side wall of the warning sign (1).

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