Dust falling equipment for building construction site

Abstract

The invention discloses dust falling equipment for a building construction site, and belongs to the technical field of building construction. A building construction site dust falling device comprises an operation table, the upper end of the operation table is connected with a circular rotating block, and a speed measuring fan is driven to rotate through natural wind, so that a first controller monitors the number of times of contact between a rectangular trigger block and a trigger groove per minute, and then the wind speed grade is judged according to the number of times of contact; and finally, according to the wind speed grades, a second driving motor is started to rotate by the number of turns, so that spraying holes of an atomizing nozzle are enlarged, the number of the spraying holes of the atomizing nozzle can be controlled according to the wind speed detected by a speed measuring fan, the utilization rate of water resources is effectively increased, and the waste rate of the water resources is reduced. And meanwhile, the speed measuring cavity has the wind gathering effect, so that thrust is generated on the water mist, the spraying range of the water mist is increased, and the dust falling efficiency of the dust falling equipment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more specifically, to a dust reduction device for construction sites. Background Art

[0002] A dust reduction device for construction sites is to optimize the urban air environment and improve the quality of people's living environment. At present, dust prevention and control at construction sites, especially airborne dust prevention and control, have become key and difficult issues in construction management work. Due to the frequent entry and exit of vehicles such as earth excavation and transportation, material supply, and construction waste removal at construction sites, a large amount of dust is inevitably generated, polluting the urban air environment. Therefore, an airborne dust reduction device must be installed at the construction site to reduce the pollution of the construction industry to the urban air environment.

[0003] Currently, the dust reduction devices used at construction sites mainly use the water sprayed by atomizing nozzles to perform dust reduction operations on the dust in the air. However, the spraying intensity of the atomizing nozzles is constant. If the natural wind pressure level at the construction site is too high, it will cause an increase in the dust content in the air, resulting in the atomizing nozzles being unable to effectively perform dust reduction operations on the dust in the air, thereby reducing the dust reduction effect of the dust reduction device. If the natural wind level at the construction site is too low, it will reduce the utilization rate of the water mist sprayed by the atomizing nozzles, thereby increasing the waste rate of water resources. Summary of the Invention

[0004] The purpose of the present invention is to provide a dust reduction device for construction sites to solve the problems raised in the above background art.

[0005] A dust reduction device for construction sites includes an operation platform. A circular rotating block is connected to the upper end of the operation platform. An air velocity detection component is connected to the upper end of the circular rotating block. A first controller is connected to one end of the air velocity detection component. A driving component is connected to the end of the first controller away from the air velocity detection component. A dust reduction component is connected to the upper end of the driving component. And a trigger groove is provided at one end of the first controller. The wind speed detection component includes a speed measurement cavity. A U-shaped support block is connected to the outside of the speed measurement cavity. A speed measurement fan is connected to the inner cavity of the speed measurement cavity. A first rotating rod is connected to the axis of the speed measurement fan. A first bevel gear is connected to the end of the first rotating rod away from the speed measurement fan. A second bevel gear meshes with the end of the first bevel gear away from the first rotating rod. A rectangular trigger block is connected to the lower end of the second bevel gear. The second bevel gear and the rectangular trigger block are connected by a first circular rotating rod. The first circular rotating rod is connected through the lower surface of the speed measurement cavity. The speed measurement cavity is a hollow structure. At the same time, the inner diameter of the speed measurement cavity gradually decreases from the end close to the wind speed detection component to the end close to the dust reduction component. The structure of the speed measurement cavity is a circular barrel structure. The trigger groove fits with the rectangular trigger block; The drive component includes a second drive motor. The output end of the second drive motor is connected to a first rotating wheel. A first rotating belt is sleeved on the outer surface of the first rotating wheel. A second rotating wheel is sleeved on the end of the first rotating belt away from the first rotating wheel. A second rotating rod is connected to the inner cavity of the second rotating wheel. A third bevel gear is connected to the end of the second rotating rod away from the second rotating wheel. A fourth bevel gear meshes with one end of the third bevel gear. A second rotating belt is connected to the end of the fourth bevel gear away from the third bevel gear. The diameter of the second rotating wheel is equal to a multiple of the diameter of the first rotating wheel. The second drive motor is fixed on the upper surface of the circular rotating block; The dust reduction component includes a dust reduction cavity. An annular connection block is connected to the outer surface of the dust reduction cavity close to the water delivery pipe. An arc connection block is connected to the outer surface of one end of the annular connection block. An internal gear ring is connected to the end of the arc connection block away from the annular connection block. The internal gear ring is rotatably connected to the dust reduction cavity. An annular groove is formed on the surface of the dust reduction cavity close to the annular connection block. The wake-up connection block is connected to the internal gear ring through the annular groove.

[0006] Preferably, a water delivery pipe is connected to the end of the dust reduction component close to the wind speed detection component. A water pump is connected to the end of the water delivery pipe away from the dust reduction component. A water storage tank is installed outside the water pump. A water injection port is connected to the upper surface of one side of the water storage tank. The output end of the water pump is connected to a water volume adjustment component. A first drive motor is connected to the lower end of the circular rotating block. The water volume adjustment component is located at the junction of the water pump and the water delivery pipe.

[0007] Preferably, a circular connection block is connected to one end of the dust-removing cavity away from the internal gear ring. Chutes are provided in four directions of the circular connection block. An arc-shaped blocking block is connected to the inner cavity of each chute. One end of each arc-shaped blocking block close to the internal gear ring is connected to a first rack. A first circular hole is provided in the middle of the circular connection block, and the first circular hole is fitted with a water delivery pipe. When the four arc-shaped blocking blocks are in contact, they form a circular blocking block that is fitted with the water delivery pipe. The middle part of the circular blocking block is a second circular hole, and the water delivery pipe passes through one end of the dust-removing cavity and contacts the arc-shaped blocking block.

[0008] Preferably, one end of the first rack meshes with a first gear. A second gear is connected to one end of the first gear close to the arc-shaped connection block. Connection blocks are connected to the outer surfaces of four directions of the dust-removing cavity. A mist spray head is connected to one end of the dust-removing cavity close to the circular connection block. The four directions are the four directions of up, down, left, and right of the dust-removing cavity. When one end of the arc-shaped blocking block moves to the other end of the chute, the arc-shaped blocking block is separated from the first circular hole, thereby increasing the holes for the mist spray head to spray water.

[0009] Preferably, the connection block is connected to the inner surface of the speed measurement cavity. The second gear meshes with the internal gear ring. The end of the second transmission belt away from the fourth conical gear is sleeved on the outer surface of the annular connection block.

[0010] Preferably, the water volume adjustment component includes an adjustment cavity. A third circular hole is provided at one end of the adjustment cavity. A semi-arc-shaped blocking plate is connected to the inner cavity of the third circular hole. The junction of the water pump and the water delivery pipe is located in the inner cavity of the third circular hole. At the same time, the semi-arc-shaped blocking plate is located at the junction of the water pump and the water delivery pipe.

[0011] Preferably, a sliding groove is provided at one end of the adjustment cavity close to the semi-arc-shaped blocking plate. A first threaded rod is connected to the inner cavity of the sliding groove. A third driving motor is connected to one end of the first threaded rod away from the semi-arc-shaped blocking plate.

[0012] Compared with the prior art, the advantages of the present invention are: 1. In the present invention, the rotation of the speed measurement fan is driven by natural wind, so that the first controller monitors the number of times the rectangular trigger block contacts the trigger groove per minute. Then, according to the number of contacts, the wind speed level is judged, and the wind speed level is divided into four levels. Finally, according to the wind speed level, the number of rotations of the second drive motor is started, so as to expand the spraying holes of the atomizing nozzle. Furthermore, the number of spraying holes of the atomizing nozzle can be controlled according to the wind speed detected by the speed measurement fan, thereby effectively improving the utilization rate of water resources, reducing the waste rate of water resources, and improving the dust reduction effect of the dust reduction equipment. At the same time, the speed measurement cavity has a specific wind gathering effect, which will generate a thrust on the water mist, thereby increasing the spraying range of the water mist and improving the dust reduction efficiency of the dust reduction equipment.

[0013] 2. In the present invention, the speed measurement cavity is of a circular barrel structure, and the inner diameter of the speed measurement cavity gradually decreases from the end close to the wind speed detection component to the end close to the dust reduction component. Since the end of the speed measurement cavity close to the dust reduction component is conical, when the natural wind exits from the outlet of the speed measurement cavity at the end close to the dust reduction component, it will have a wind gathering effect on the natural wind, thereby increasing the wind speed of the natural wind and providing a driving force for the water mist sprayed by the atomizing nozzle, thus enhancing the spraying range of the water mist and further improving the dust reduction effect of the dust reduction equipment.

[0014] 3. In the present invention, when the first controller monitors that the wind speed level is four, the third drive motor will be started, thereby increasing the rotation speed of the water pump and the spraying volume of the water delivery pipe. Furthermore, the semi-circular baffle will be separated from the third circular hole, and then the spraying intensity of the atomizing nozzle will be increased, further strengthening the spraying intensity of the water mist, thereby increasing the spraying range of the atomizing nozzle and further improving the dust reduction efficiency of the dust reduction equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the present invention; Figure 3 is a schematic diagram of the structure of the wind speed detection component of the present invention; Figure 4 is a schematic diagram of the structure of the drive component of the present invention; Figure 5 is a schematic diagram of the structure of the dust reduction cavity of the present invention; Figure 6 is a schematic diagram of the internal structure of the dust reduction cavity of the present invention; Figure 7 is a schematic diagram of a partial structure of the dust reduction cavity of the present invention; Figure 8 is a front view structural schematic diagram of the dust reduction cavity of the present invention; Figure 9 is a schematic diagram of the structure of the water volume adjustment component of the present invention.

[0016] Description of reference numerals in the figure: 1, operating table; 2, circular rotating block; 3, wind speed detection component; 301, speed measurement cavity; 302, U-shaped support block; 303, speed measurement fan; 304, first rotating rod; 305, first bevel gear; 306, second bevel gear; 307, rectangular trigger block; 4, first controller; 5, drive component; 501, second drive motor; 502, first rotating wheel; 503, first rotating belt; 504, second rotating rod; 505, third bevel gear; 506, fourth bevel gear; 507, second rotating belt; 508, second rotating wheel; 6, dust reduction component; 601, dust reduction cavity; 602, annular connecting block; 603, arc connecting block; 604, connecting block; 605, internal gear ring; 606, circular connecting block; 607, chute; 608, arc blocking block; 609, atomizing nozzle; 610, first rack; 611, first gear; 612, second gear; 7, water delivery pipe; 8, first drive motor; 9, water pump; 10, water storage tank; 11, water volume adjustment component; 1101, adjustment cavity; 1102, third circular hole; 1103, semi-arc blocking plate; 1104, sliding groove; 1105, first threaded rod; 1106, third drive motor; 12, water injection port. Detailed implementation manners

[0017] Example: Please refer to Figure 1 and Figure 2 and, a dust reduction device for a construction site, including an operating table 1, a circular rotating block 2 is connected to the upper end of the operating table 1, a wind speed detection component 3 is connected to the upper end of the circular rotating block 2, one end of the wind speed detection component 3 is connected to a first controller 4, one end of the first controller 4 away from the wind speed detection component 3 is connected to a drive component 5, a dust reduction component 6 is connected to the upper end of the drive component 5, and a trigger groove is opened at one end of the first controller 4, and if the number of times the rectangular trigger block 307 contacts the trigger groove monitored by the first controller 4 per minute is towards 120 times, then it is calculated according to 120 times; Please refer to Figure 3, the wind speed detection component 3 includes a speed measurement cavity 301. A U-shaped support block 302 is connected to the outside of the speed measurement cavity 301. A speed measurement fan 303 is connected to the inner cavity of the speed measurement cavity 301. A first rotating rod 304 is connected to the axis of the speed measurement fan 303. One end of the first rotating rod 304 away from the speed measurement fan 303 is connected to a first bevel gear 305. A second bevel gear 306 meshes with one end of the first bevel gear 305 away from the first rotating rod 304. A rectangular trigger block 307 is connected to the lower end of the second bevel gear 306. The second bevel gear 306 and the rectangular trigger block 307 are connected by a first circular rotating rod, and the first circular rotating rod is connected to the first circular rotating rod through the lower surface of the speed measurement cavity 301. The speed measurement cavity 301 is a hollow structure. At the same time, the inner diameter of the speed measurement cavity 301 gradually decreases from the end close to the wind speed detection component 3 to the end close to the dust reduction component 6. The structure of the speed measurement cavity 301 is a circular barrel structure. The trigger groove fits with the rectangular trigger block 307; Please refer to Figure 4 , the driving component 5 includes a second driving motor 501. The output end of the second driving motor 501 is connected to a first rotating wheel 502. A first rotating belt 503 is sleeved on the outer surface of the first rotating wheel 502. A second rotating wheel 508 is sleeved on one end of the first rotating belt 503 away from the first rotating wheel 502. A second rotating rod 504 is connected to the inner cavity of the second rotating wheel 508. One end of the second rotating rod 504 away from the second rotating wheel 508 is connected to a third bevel gear 505. A fourth bevel gear 506 meshes with one end of the third bevel gear 505. A second rotating belt 507 is connected to the end of the fourth bevel gear 506 away from the third bevel gear 505. The second driving motor 501 is fixed on the upper surface of the circular rotating block 2; Please refer to Figure 5 and Figure 6 , the dust reduction component 6 includes a dust reduction cavity 601. An annular connection block 602 is connected to the outer surface of one end of the dust reduction cavity 601 close to the water delivery pipe 7. An arc-shaped connection block 603 is connected to the outer surface of one end of the annular connection block 602. An internal gear ring 605 is connected to the end of the arc-shaped connection block 603 away from the annular connection block 602. The internal gear ring 605 is rotatably connected to the dust reduction cavity 601. An annular groove is formed on the surface of one end of the dust reduction cavity 601 close to the annular connection block 602. The annular connection block 602 is connected to the internal gear ring 605 through the annular groove. The wind speed is divided into four levels. When the number of times the rectangular trigger block 307 contacts the trigger groove per minute is less than thirty times, the second driving motor 501 remains unchanged. At this time, for every time the number of times the rectangular trigger block 307 contacts the trigger groove per minute exceeds thirty times, the second driving motor 501 will rotate one circle.

[0018] Specifically, the rotation of the speed measurement fan 303 is driven by natural wind, so that the first controller 4 can monitor the number of times the rectangular trigger block 307 contacts the trigger groove per minute. Then, according to the number of contacts, the wind speed level is judged, and the wind speed level has four levels. Finally, according to the wind speed level, the number of rotations of the second drive motor 501 is started, so as to expand the spraying holes of the atomizing nozzle 609. Furthermore, the number of spraying holes of the atomizing nozzle 609 can be controlled according to the wind speed detected by the speed measurement fan 303, thereby effectively improving the utilization rate of water resources, reducing the waste rate of water resources, and improving the dust reduction effect of the dust reduction equipment.

[0019] Please refer to Figure 2 , one end of the dust reduction component 6 close to the wind speed detection component 3 is connected with a water delivery pipe 7, one end of the water delivery pipe 7 far from the dust reduction component 6 is connected with a water pump 9, a water storage tank 10 is installed outside the water pump 9, a water injection port 12 is connected to the upper surface of one side of the water storage tank 10, and the output end of the water pump 9 is connected with a water volume adjustment component 11. The lower end of the circular rotating block 2 is connected with a first drive motor 8, and the water volume adjustment component 11 is located at the junction of the water pump 9 and the water delivery pipe 7.

[0020] Specifically, the speed measurement cavity 301 is of a circular barrel structure, and at the same time, the inner diameter of the speed measurement cavity 301 gradually decreases from the end close to the wind speed detection component 3 to the end close to the dust reduction component 6. Since the end of the speed measurement cavity 301 close to the dust reduction component 6 is conical, when the natural wind exits from the outlet of the speed measurement cavity 301 at the end close to the dust reduction component 6, it will have a wind gathering effect on the natural wind, thereby increasing the wind speed of the natural wind and providing a driving force for the water mist sprayed by the atomizing nozzle 609, thus enhancing the spraying range of the water mist and further improving the dust reduction effect of the dust reduction equipment.

[0021] Please refer to Figure 7 and Figure 8 , one end of the dust reduction cavity 601 far from the internal gear ring 605 is connected with a circular connection block 606. Four sliding grooves 607 are opened in four directions of the circular connection block 606. An arc-shaped blocking block 608 is connected in the inner cavity of each sliding groove 607. One end of each arc-shaped blocking block 608 close to the internal gear ring 605 is connected with a first rack 610. A first circular hole is opened in the middle part of the circular connection block 606, and the first circular hole is fitted with the water delivery pipe 7. When the four arc-shaped blocking blocks 608 are in contact, they form a circular blocking block and are fitted with the water delivery pipe 7. The middle part of the circular blocking block is a second circular hole, and the water delivery pipe 7 contacts the arc-shaped blocking block 608 through one end penetrating the dust reduction cavity 601.

[0022] Please refer to Figure 7 and Figure 8, one end of the first rack 610 is engaged with a first gear 611. One end of the first gear 611 close to the arc-shaped connecting block 603 is connected to a second gear 612. Connecting blocks 604 are connected to the outer surface of the dust reduction cavity 601 in four directions. One end of the dust reduction cavity 601 close to the circular connecting block 606 is connected to a spray nozzle 609. The four directions are the up, down, left, and right directions of the dust reduction cavity 601. When one end of the arc-shaped blocking block 608 moves to the other end of the sliding groove 607, the arc-shaped blocking block 608 is separated from the first circular hole, thereby increasing the holes for the spray nozzle 609 to spray water.

[0023] The connecting block 604 is connected to the inner surface of the speed measurement cavity 301. The second gear 612 is engaged with the internal gear ring 605. One end of the second transmission belt 507 far from the fourth bevel gear 506 is sleeved on the outer surface of the annular connecting block 602.

[0024] Please refer to Figure 9 , the water volume adjustment component 11 includes an adjustment cavity 1101. A third circular hole 1102 is opened at one end of the adjustment cavity 1101. A semi-circular blocking plate 1103 is connected to the inner cavity of the third circular hole 1102. The junction of the water pump 9 and the water delivery pipe 7 is located in the inner cavity of the third circular hole 1102. At the same time, the semi-circular blocking plate 1103 is located at the junction of the water pump 9 and the water delivery pipe 7.

[0025] Please refer to Figure 9 , a sliding groove 1104 is opened at one end of the adjustment cavity 1101 close to the semi-circular blocking plate 1103. A first threaded rod 1105 is connected to the inner cavity of the sliding groove 1104. One end of the first threaded rod 1105 far from the semi-circular blocking plate 1103 is connected to a third driving motor 1106.

[0026] Specifically, when the first controller 4 monitors that the wind speed level is four, the second driving motor 501 will be started, thereby increasing the rotation speed of the water pump 9, increasing the spraying volume of the water delivery pipe 7, and then separating the semi-circular blocking plate 1103 from the third circular hole 1102. Then, the spraying intensity of the spray nozzle 609 is increased, further strengthening the spraying intensity of the water mist, thereby increasing the spraying range of the spray nozzle 609, and further improving the dust reduction efficiency of the dust reduction device.

[0027] Working principle: First, water is injected into the water storage tank 10 through the water injection port 12 until the water storage tank 10 is full. Then, the first driving motor 8 is started to drive the circular rotating block 2 to rotate, thereby driving the wind speed detection component 3 and the dust reduction component 6 to rotate until one end of the speed measurement cavity 301 close to the speed measurement fan 303 is located on the windward side. At this time, the water pump 9 is started and the water in the water storage tank 10 is transported through the water delivery pipe 7 to the second circular hole formed by the arc-shaped blocking block 608, and then is transported to the outside through the atomizing nozzle 609, thereby performing a dust reduction operation on the outside air. When the speed measurement cavity 301 is on the windward side, the wind drives the speed measurement fan 303 to rotate. As the speed measurement fan 303 rotates, it drives the first rotating rod 304 to rotate, thereby driving the first bevel gear 305 to rotate, and then driving the second bevel gear 306 to rotate. And the rotation of the second bevel gear 306 drives the rectangular trigger block 307 to rotate; And each time the rectangular trigger block 307 rotates, it will contact the trigger groove formed on the surface of the first controller 4 once. At this time, the first controller 4 will monitor the number of times the rectangular trigger block 307 contacts the trigger groove per minute. If the number of times the rectangular trigger block 307 contacts the trigger groove per minute is less than 30 times, it will remain the current state. If the number of times the rectangular trigger block 307 contacts the trigger groove per minute is greater than 30 times and less than 60 times, the first controller 4 will control the second driving motor 501 to rotate one circle. If the number of times the rectangular trigger block 307 contacts the trigger groove per minute is greater than 60 times and less than 90 times, the first controller 4 will control the second driving motor 501 to rotate one more circle, and so on. Each time the number of times the rectangular trigger block 307 contacts the trigger groove per minute exceeds 30 times, the first controller 4 will control the second driving motor 501 to rotate one circle; In this way, according to the number of times the first controller 4 monitors the rectangular trigger block 307 contacting the trigger groove per minute, the first controller 4 controls the second driving motor 501 to rotate, driving the first rotating wheel 502 to rotate, thereby driving the first rotating belt 503 to rotate, and then driving the second rotating wheel 508 to rotate. As the second rotating wheel 508 rotates, it drives the second rotating rod 504 to rotate, thereby driving the third bevel gear 505 to rotate, and then driving the fourth bevel gear 506 to rotate. And the rotation of the fourth bevel gear 506 drives the second rotating belt 507 to rotate, thereby driving the rotation of the annular connecting block 602, and then driving the rotation of the internal gear ring 605; As the inner gear ring 605 rotates, the second gear 612 is driven to rotate, thereby driving the first gear 611 to rotate, and then driving the first rack 610 to move toward the outside of the inner gear ring 605, so that the arc-shaped blocking block 608 moves toward the outside of the inner gear ring 605 along the slide groove 607. In this way, each rotation of the second drive motor 501 will drive the arc-shaped blocking block 608 to move one step toward the outside of the inner gear ring 605 and expose a circle of holes on the surface of the atomizing nozzle 609. Similarly, when the first controller 4 detects that the number of times the rectangular trigger block 307 contacts the trigger groove exceeds one hundred and twenty times per minute, the arc-shaped blocking block 608 will be separated from the second circular hole, and the third drive motor 1106 will be started; The arc-shaped blocking block 608 is spaced opposite to the second circular hole, which increases the spraying hole of the atomizing nozzle 609, thereby increasing the spraying area of the atomizing nozzle 609. At the same time, during the spraying process of the atomizing nozzle 609, the wind passing through the velocity measuring cavity 301 will generate a thrust on the sprayed water mist, further expanding the spraying range of the atomizing nozzle 609. Starting the third drive motor 1106 will drive the first threaded rod 1105 to rotate, so that the semi-arc blocking plate 1103 moves along the sliding groove 1104 toward the third drive motor 1106 until the semi-arc blocking plate 1103 is completely separated from the third circular hole 1102, and then the rotation speed of the water pump 9 is increased, thereby increasing the spray volume of the water pump 9, and then increasing the intensity of the water mist sprayed by the atomizing nozzle 609 until the dust reduction operation is completed, and all operations are ended.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dust reduction device for a construction site, comprising an operation console (1), characterized in that: A circular rotating block (2) is connected to the upper end of the operating table (1). A wind speed detection component (3) is connected to the upper end of the circular rotating block (2). One end of the wind speed detection component (3) is connected to a first controller (4). One end of the first controller (4) away from the wind speed detection component (3) is connected to a driving component (5). A dust reduction component (6) is connected to the upper end of the driving component (5). The wind speed detection component (3) includes a speed measurement cavity (301). A U-shaped support block (302) is connected to the outer side of the speed measurement cavity (301). A speed measurement fan (303) is connected to the inner cavity of the speed measurement cavity (301). A first rotating rod (304) is connected to the axis of the speed measurement fan (303). A first bevel gear (305) is connected to the end of the first rotating rod (304) away from the speed measurement fan (303). A second bevel gear (306) meshes with the end of the first bevel gear (305) away from the first rotating rod (304). A rectangular trigger block (307) is connected to the lower end of the second bevel gear (306). The driving component (5) includes a second driving motor (501). The output end of the second driving motor (501) is connected to a first rotating wheel (502). A first rotating belt (503) is sleeved on the outer surface of the first rotating wheel (502). A second rotating wheel (508) is sleeved on the end of the first rotating belt (503) away from the first rotating wheel (502). A second rotating rod (504) is connected to the inner cavity of the second rotating wheel (508). A third bevel gear (505) is connected to the end of the second rotating rod (504) away from the second rotating wheel (509). A fourth bevel gear (506) meshes with one end of the third bevel gear (505). A second rotating belt (507) is connected to the end of the fourth bevel gear (506) away from the third bevel gear (505). The dust reduction component (6) includes a dust reduction cavity (601). An annular connecting block (602) is connected to the outer surface of one end of the dust reduction cavity (601) close to the water delivery pipe (7). An arc-shaped connecting block (603) is connected to the outer surface of one end of the annular connecting block (602). An internal gear ring (605) is connected to the end of the arc-shaped connecting block (603) away from the annular connecting block (602).

2. The dust reduction device for construction site dust according to claim 1, wherein: A water delivery pipe (7) is connected to one end of the dust reduction component (6) close to the wind speed detection component (3). A water pump (9) is connected to the end of the water delivery pipe (7) away from the dust reduction component (6). A water storage tank (10) is installed outside the water pump (9). A water injection port (12) is connected to the upper surface of one side of the water storage tank (10). A water volume adjustment component (11) is connected to the output end of the water pump (9). A first driving motor (8) is connected to the lower end of the circular rotating block (2).

3. The dust reduction device for a construction site according to claim 2, characterized in that: One end of the dust - settling cavity (601) far from the internal gear ring (605) is connected with a circular connecting block (606). Four positions of the circular connecting block (606) are each provided with a sliding groove (607). An arc - shaped blocking block (608) is connected in the inner cavity of each sliding groove (607). One end of each arc - shaped blocking block (608) close to the internal gear ring (605) is connected with a first rack (610).

4. A dust reduction device for construction sites according to claim 3, characterized in that: One end of the first rack (610) meshes with a first gear (611). One end of the first gear (611) close to the arc - shaped connecting block (603) is connected with a second gear (612). Connecting blocks (604) are connected to the outer surface of four positions of the dust - settling cavity (601). One end of the dust - settling cavity (601) close to the circular connecting block (606) is connected with a spray nozzle (609).

5. The dust reduction device for construction site dust according to claim 4, characterized in that: The connecting block (604) is connected to the inner surface of the speed - measuring cavity (301). The second gear (612) meshes with the internal gear ring (605). One end of the second transmission belt (507) far from the fourth bevel gear (506) is sleeved on the outer surface of the annular connecting block (602).

6. The dust reduction device for a construction site according to claim 5, characterized in that: The water - volume adjusting component (11) includes an adjusting cavity (1101). One end of the adjusting cavity (1101) is provided with a third circular hole (1102). A semi - arc - shaped blocking plate (1103) is connected in the inner cavity of the third circular hole (1102).

7. The dust reduction device for a construction site according to claim 6, wherein: One end of the adjusting cavity (1101) close to the semi - arc - shaped blocking plate (1103) is provided with a sliding groove (1104). A first threaded rod (1105) is connected in the inner cavity of the sliding groove (1104). One end of the first threaded rod (1105) far from the semi - arc - shaped blocking plate (1103) is connected with a third driving motor (1106).

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