Dust falling device for smart construction site

Abstract

The application discloses a dust falling device for a smart construction site, and relates to the technical field of smart construction sites.The dust falling device comprises a bottom plate, a supporting assembly is arranged on the bottom plate, a supporting plate is arranged on the supporting assembly, a guide rail is arranged on the supporting plate, fixed plates are fixed on the two sides of the guide rail, fixed screws are connected to the fixed plates, the fixed plates are fixed to the supporting plate through the fixed screws, and a sliding strip is slidably arranged on the inner side of the guide rail.The dust falling device for a smart construction site is characterized in that a mechanical linkage structure is used to realize automatic large-angle reciprocating swing of the spray head while the spray head is horizontally moved, so that the dust falling coverage range and the dynamic dust suppression capacity are obviously improved.The spray head installed at the end of the swing arm simultaneously has two degrees of freedom of movement, i.e., transverse movement along the length of the guide rail and periodic swing perpendicular to the movement direction, so that a dynamically expanded three-dimensional water mist coverage net is formed, the suppression efficiency of large-area and diffused dust is higher, the operation is reliable, and the maintenance cost is low.

Description

Technical Field

[0001] This invention relates to the field of smart construction site technology, specifically a dust suppression device for smart construction sites. Background Technology

[0002] Construction site dust suppression devices are a series of specialized equipment used to control dust pollution at construction sites. Their core principle is to fix dust by physically covering it or increasing air humidity. Common devices include tower crane sprinkler systems, which use ring-shaped nozzles on high-altitude booms to create a large-area water mist curtain; perimeter sprinklers, which form a three-dimensional dust barrier at the construction site boundary; and mobile fog cannons, which atomize water into micron-sized particles under high pressure, efficiently adsorbing and settling airborne dust. Other devices include road water trucks, dust netting covering exposed soil layers, and closed-loop spraying for material piles. These devices can significantly reduce the concentration of PM10 and PM2.5, and are key technologies for implementing green construction and preventing air pollution.

[0003] According to a search, Chinese patent document, publication number CN119281017A, discloses a smart construction site dust suppression device based on the Internet of Things (IoT). The device includes a project water supply system and a water tank. The water tank is located on one side of the project water supply system, with an inlet and an outlet on each side. The outlet of the project water supply system is connected to the inlet of the water tank via a first connecting pipe. An automatic water shut-off mechanism is installed at the end of the first connecting pipe inside the water tank. A vertical centrifugal booster pump is connected to the outlet of the water tank via a second connecting pipe. An outlet pipe is fixedly connected to the outlet of the vertical centrifugal booster pump, and multiple spray pipes are fixedly installed at both ends of the outlet pipe from front to back. This IoT-based smart construction site dust suppression device can effectively solve the environmental problems caused by construction site dust, eliminate resource waste and environmental pollution caused by traditional processes, and improve dust suppression efficiency.

[0004] However, the aforementioned IoT-based smart construction site dust suppression devices still have limitations in practical applications. Their nozzles are mostly fixed installations or can only spray at small angles, resulting in a relatively limited water mist coverage area, forming a static or near-static wetted zone. This design struggles to adapt to complex and changing construction site environments, especially when dust sources move or spread with the construction process, as fixed nozzles cannot effectively track and cover them. A greater drawback is the lack of integrated movement and oscillation functions in existing devices. They cannot flexibly move their spray positions with the movement of construction machinery or dusty areas, nor can they achieve large-scale automatic oscillation of the nozzles during movement. Therefore, their dust suppression effect is often confined to preset fixed points, failing to form a dynamic, wide-area, and follow-up dust suppression barrier. Their efficiency and adaptability are significantly limited when dealing with large-area, diffuse dust or rapidly changing work surfaces. Summary of the Invention

[0005] The purpose of this invention is to provide a dust suppression device for smart construction sites to solve the problems mentioned in the background art.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A dust suppression device for smart construction sites is provided, including a base plate, a support assembly on the base plate, a support plate on the support assembly, a guide rail mounted on the support plate, fixing plates fixed on both sides of the guide rail, fixing screws connected to the fixing plates, the fixing plates being fixed to the support plate by the fixing screws, a slide rail slidably mounted on the inner side of the guide rail, through grooves opened on both sides of the guide rail, racks installed inside the through grooves, multiple rotating shafts rotatably mounted on both sides of the slide rail, a toothed sleeve meshing with the rack fixed on the outer side of each rotating shaft, a support assembly on both sides of the guide rail corresponding to the position of each rotating shaft, the rotating shafts rotatingly engaging with the corresponding support assembly, a linkage assembly on the inner side of the support assembly, a swing arm mounted on the linkage assembly, a mounting assembly at the end of the swing arm, a nozzle connected to the mounting assembly, and a drive assembly on the support plate, the drive assembly being used to drive the slide rail to reciprocate along the guide rail.

[0008] Furthermore: the support components include columns, diagonal braces, inserts, slots, sockets, and rods. The columns are located at the top four corners of the base plate. The diagonal braces are fixed between two adjacent columns. The inserts are fixed at the bottom of the columns. The slots are located at the top four corners of the base plate and are adapted to the inserts. The sockets are located on the base plate and the inserts. After the inserts are inserted into the slots, the sockets overlap. The rods are inserted into the sockets and their ends protrude from the sides of the base plate. The two ends of the rods are threaded with fixing nuts.

[0009] Furthermore: the support assembly includes a mounting base and a support rod. The mounting base is rotatably located on the outside of the rotating shaft. Limit grooves are provided on both sides of the guide rail. The end of the mounting base slides into the limit groove. The support rod is fixedly located at the upper and lower ends of the mounting base.

[0010] Furthermore: the linkage assembly includes a connecting shaft, a linkage bevel gear, and a half-tooth bevel gear. The connecting shaft is rotatably positioned between two support rods. There are two linkage bevel gears, which are symmetrically fixed on the outside of the connecting shaft. The half-tooth bevel gear is fixed on the end of the rotating shaft away from the guide rail. When the rotating shaft rotates, it drives the half-tooth bevel gear to periodically mesh with the two linkage bevel gears. The swing arm is fixedly connected to the connecting shaft.

[0011] Furthermore: The mounting components include mounting holes, slots, and fastening bolts. The mounting holes are formed on the swing arm, the slots are formed at the end of the swing arm and communicate with the mounting holes, the fastening bolts are connected to the swing arm and pass through the slots, the nozzles are set inside the mounting holes, and tightening the fastening bolts can compress the slots.

[0012] Furthermore: the top of the nozzle has an annular groove, the rotating ring is rotatably located inside the annular groove, and multiple circumferentially distributed locking blocks are fixed around the rotating ring. The inner side of the annular groove has a locking groove corresponding to the locking blocks. A positioning ring is fixed at the top of the annular groove on the nozzle, and the bottom of the positioning ring fits against the top of the locking block. An adjusting head is fixed at the top of the rotating ring, and the adjusting head has spray nozzles of various specifications.

[0013] Furthermore: the drive assembly includes a mounting plate, a drive motor, a transmission shaft, a rocker arm, and a guide wheel. The mounting plate is fixedly mounted on the bottom of the support plate, the drive motor is fixedly mounted on the bottom of the mounting plate, the transmission shaft is mounted on the output end of the drive motor, the transmission shaft passes through the mounting plate and the support plate and rotates with both, the rocker arm is fixedly mounted on the outside of the transmission shaft, the guide wheel is rotatably mounted on the end of the rocker arm, and a guide frame is fixedly mounted on the end of the slide bar, with the guide wheel rolling with the inner wall of the guide frame.

[0014] Furthermore: a water tank is provided on the base plate, and a double-headed water pump is installed on the water tank. Both output ends of the double-headed water pump are connected to a main pipe. A water supply pipe is connected to the bottom of each nozzle. A rectangular groove is opened on the support plate, and the bottom end of the water supply pipe passes through the rectangular groove and connects to the corresponding main pipe.

[0015] Furthermore, casters are provided at the four corners of the bottom of the base plate, and the casters are fixed to the base plate with screws.

[0016] Furthermore, both the guide rail and the slider have trapezoidal cross-sections.

[0017] The beneficial effects of this invention are:

[0018] 1. This invention achieves automatic large-angle reciprocating oscillation of the nozzle while it moves horizontally through a mechanical linkage structure, significantly improving the dust suppression coverage and dynamic dust control capability. The drive motor drives the rocker arm to rotate at a constant speed through the transmission shaft. The guide wheel at the end of the rocker arm rolls within the guide frame at the end of the slide bar, converting the circular motion into the linear reciprocating motion of the slide bar along the guide rail. At the same time, the rotating shaft fixed on both sides of the slide bar meshes with the inner rack of the guide rail through the outer tooth sleeve, synchronously converting the linear movement of the slide bar into the rotational motion of the rotating shaft. When the rotating shaft rotates, the half-tooth bevel gear with only half-circumferential teeth periodically and alternately meshes with the two linkage bevel gears on the connecting shaft, enabling the connecting shaft and the rigidly fixed rocker arm to achieve automatic reversing oscillation without external electrical control. Finally, the nozzle installed at the end of the rocker arm has both lateral movement along the length of the guide rail and periodic oscillation perpendicular to the direction of movement, thus forming a dynamically expanding three-dimensional water mist coverage network. This results in higher suppression efficiency for large-area, diffuse dust, reliable operation, and low maintenance costs.

[0019] 2. This invention adopts a modular and adjustable design, combining excellent on-site adaptability and operational flexibility. The frame components are quickly aligned via slots on the base plate and inserts at the bottom of the columns, and secured with through-hole rods and fixing nuts at both ends. Combined with diagonal bracing, this forms a stable overall structure with strong anti-overturning properties. It can withstand the dynamic loads of moving parts and is easy to disassemble and transport quickly. The rotating ring at the top of the nozzle has various sizes of spray nozzles. By rotating the adjustment head, different spray nozzles can be aligned with the flow channel, thereby flexibly changing the particle size and spray angle of the water mist. To address the varying dust suppression needs at different stages of a construction site (such as large particle settling during earthwork excavation or suspended dust from concrete mixing), the entire device is equipped with casters on its base, allowing for easy movement to different work areas. The water supply system utilizes a dual-headed pump and a centralized main pipe, with rectangular grooves on the support plate providing ample space for the water pipes connecting the nozzles, ensuring the safety and durability of the pipelines during movement. This design, which integrates rapid deployment, flexible adjustment, and reliable operation, greatly enhances the overall efficiency and service life of a single unit in complex construction site environments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the linkage component structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the installation component structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the guide wheel and guide frame structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the guide rail structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the drive shaft and rocker arm structure of the present invention.

[0027] Figure 7 This is a schematic diagram of the base plate and column structure of the present invention.

[0028] In the diagram: 1. Base plate; 2. Column; 3. Diagonal brace; 4. Insert block; 5. Slot; 6. Insertion hole; 7. Insert rod; 8. Support plate; 9. Guide rail; 10. Fixing plate; 11. Fixing screw; 12. Sliding bar; 13. Through groove; 14. Rack; 15. Rotating shaft; 16. Gear sleeve; 17. Mounting base; 18. Limiting groove; 19. Support rod; 20. Connecting shaft; 21. Linkage bevel gear; 22. Half gear 23. Bevel gear; 24. Swing arm; 25. Mounting hole; 26. Groove; 27. Fastening bolt; 28. Nozzle; 29. ​​Ring groove; 30. Rotary ring; 31. Locking block; 32. Locking groove; 33. Positioning ring; 34. Adjusting head; 35. Mounting plate; 36. Drive motor; 37. Drive shaft; 38. Rocker arm; 39. Guide wheel; 40. Guide frame; 41. Water tank; 42. Rectangular groove; 43. Water supply pipe. Detailed Implementation

[0029] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions.

[0031] Example 1: The present invention provides a technical solution, such as... Figures 1-7 As shown, a dust suppression device for smart construction sites includes a base plate 1, a support assembly on the base plate 1, a support plate 8 on the frame assembly, a guide rail 9 mounted on the support plate 8, and fixing plates 10 fixed on both sides of the guide rail 9. Fixing screws 11 are connected to the fixing plates 10, which are then fixed to the support plate 8. A slide bar 12 is slidably mounted on the inner side of the guide rail 9, and through grooves 13 are formed on both sides of the guide rail 9. A rack 14 is installed inside the through grooves 13, and the slide bar 12 is rotatably mounted on both sides. There are multiple rotating shafts 15, and a toothed sleeve 16 that meshes with a rack 14 is fixed on the outer side of each rotating shaft 15. Support components are provided on both sides of the guide rail 9 corresponding to the position of each rotating shaft 15. The rotating shaft 15 and the corresponding support component are rotatably engaged. A linkage component is provided on the inner side of the support component. A swing arm 23 is installed on the linkage component. A mounting component is provided at the end of the swing arm 23. A nozzle 27 is connected to the mounting component. A drive component is provided on the support plate 8. The drive component is used to drive the slide bar 12 to move back and forth along the guide rail 9.

[0032] like Figures 1-7As shown, the frame assembly includes columns 2, diagonal braces 3, insert blocks 4, slots 5, insertion holes 6, and insert rods 7. Columns 2 are located at the top four corners of the base plate 1. Diagonal braces 3 are fixedly installed between two adjacent columns 2. Insert blocks 4 are fixedly installed at the bottom of columns 2. Slots 5 are located at the top four corners of the base plate 1 and are adapted to insert blocks 4. Insert holes 6 are located on the base plate 1 and insert blocks 4. After insert blocks 4 are inserted into slots 5, insertion holes 6 overlap. Insert rods 7 are inserted into insertion holes 6, with both ends protruding from the sides of the base plate 1. Both ends of insert rods 7 are threaded with fixing nuts and connect to slots 5 on the base plate 1 via insert blocks 4. The precise coordination enables rapid positioning. The overlapping insertion holes 6 allow the insertion rod 7 to pass through and lock. Then, the axial preload is applied by the fixing nuts at both ends, firmly pressing the column 2, the base plate 1, and the insertion block 4 into a rigid whole. The diagonal bracing rod 3 forms a triangular stable structure between adjacent columns 2. This design enables rapid modular installation and disassembly of the device. At the same time, the double fixing of insertion and threaded locking greatly enhances the overall structure's anti-overturning stability and load-bearing capacity, effectively resisting vibration and lateral forces in complex construction site environments, and ensuring the foundation for the smooth operation of the upper motion mechanism.

[0033] like Figures 1-7 As shown, the support assembly includes a mounting base 17 and a support rod 19. The mounting base 17 is rotatably mounted on the outside of the rotating shaft 15. Limiting grooves 18 are formed on both sides of the guide rail 9. The ends of the mounting base 17 slide in conjunction with the limiting grooves 18. The support rod 19 is fixedly mounted on the upper and lower ends of the mounting base 17. The mounting base 17 is sleeved on the rotating shaft 15 and can rotate on its outside. Its ends are embedded in the limiting grooves 18 on both sides of the guide rail 9, restricting the mounting base 17 and the upper and lower support rods 19 fixed thereto to slide only along the length of the limiting grooves 18. When the rotating shaft 15 rotates, the mounting base 17 acts as a rotational support, while the sliding of the support rod 19 accommodates the axial displacement of the rotating shaft 15 caused by the rolling of the gear sleeve 16 along the rack 14. This structure cleverly combines the rotational motion support and axial movement guidance functions of the rotating shaft 15. The limiting grooves 18 ensure that the support assembly slides stably along a predetermined trajectory, preventing swaying and offset during the swing process, and providing a precise and reliable installation and movement foundation for the linkage assembly.

[0034] like Figures 1-7As shown, the linkage assembly includes a connecting shaft 20, a linkage bevel gear 21, and a half-tooth bevel gear 22. The connecting shaft 20 is rotatably mounted between two support rods 19. There are two linkage bevel gears 21, which are symmetrically fixed on the outside of the connecting shaft 20. The half-tooth bevel gear 22 is fixed on the end of the rotating shaft 15 away from the guide rail 9. When the rotating shaft 15 rotates, it drives the half-tooth bevel gear 22 to periodically mesh with the two linkage bevel gears 21. The swing arm 23 is fixedly connected to the connecting shaft 20. When the rotating shaft 15 drives the half-tooth bevel gear 22 to rotate, since it only has teeth on half of its circumference, it will periodically mesh with the two linkage bevel gears on the connecting shaft 20 in sequence. When gear 21 meshes, within one cycle, the half-tooth bevel gear 22 first meshes with one of the linkage bevel gears 21 to drive the connecting shaft 20 to rotate in the forward direction. After disengaging, it meshes with the other linkage bevel gear 21 after a free stroke to drive the connecting shaft 20 to rotate in the reverse direction, thereby realizing the automatic reciprocating swing of the swing arm 23. This design converts the linear movement of the slide bar 12 into the rotation of the rotating shaft 15 through the rack 14 and the gear sleeve 16, and then through the alternating meshing of the half-tooth bevel gear 22 with the two linkage bevel gears 21, without the need for additional control circuits or reversing valves, thus efficiently and reliably converting unidirectional rotational motion into the periodic automatic reciprocating swing of the swing arm 23. The structure is ingenious and the transmission is stable.

[0035] like Figures 1-7 As shown, the mounting assembly includes a mounting hole 24, a slot 25, and a fastening bolt 26. The mounting hole 24 is located on the swing arm 23, and the slot 25 is located at the end of the swing arm 23 and communicates with the mounting hole 24. The fastening bolt 26 is connected to the swing arm 23 and passes through the slot 25. The nozzle 27 is located inside the mounting hole 24. Tightening the fastening bolt 26 compresses the slot 25, allowing the nozzle 27 to be inserted into the mounting hole 24 at the end of the swing arm 23. By tightening the fastening bolt 26, the bolt shank compresses both sides of the slot 25, causing the width of the slot 25 to narrow, thereby uniformly clamping and fixing the nozzle 27 from all sides. The slot 25's contraction locking principle provides a reliable and non-damaging radial clamping force for the nozzle 27. Installation and disassembly are simple and quick, facilitating the replacement or maintenance of different models of nozzles 27 according to site requirements, thus improving the adaptability and maintenance efficiency of the device.

[0036] like Figures 1-7As shown, the nozzle 27 has an annular groove 28 at its top, and a rotating ring 29 is rotatably disposed inside the annular groove 28. Multiple circumferentially distributed locking blocks 30 are fixedly disposed around the rotating ring 29. A locking groove 31 corresponding to the locking blocks 30 is formed on the inner side of the annular groove 28. A positioning ring 32 is fixedly disposed on the nozzle 27 at the top of the annular groove 28, with its bottom fitting against the top of the locking blocks 30. An adjusting head 33 is fixedly disposed at the top of the rotating ring 29, and the adjusting head 33 has various sizes of spray nozzles. The rotating ring 29 at the top of the nozzle 27 is connected to the annular groove 28 via the locking blocks 30. The slot 31 is used to achieve circumferential positioning and can be rotated under force. The positioning ring 32 prevents the rotating ring 29 from axially dislodging. By rotating the adjustment head 33, different specifications of spray nozzles can be aligned with the water outlet channel, thereby changing the spray angle and particle size of the water mist. The card block 30 and the slot 31 provide a clear sense of gear position, making it easy to quickly and accurately select the atomization mode. Multiple specifications of spray nozzles are integrated into one nozzle 27, allowing users to flexibly adjust according to dust conditions (such as initial settling requiring a large volume of water, and suspended dust requiring a fine mist), thus optimizing the dust suppression effect and water resource utilization rate.

[0037] like Figures 1-7 As shown, the drive assembly includes a mounting plate 34, a drive motor 35, a transmission shaft 36, a rocker arm 37, and a guide wheel 38. The mounting plate 34 is fixedly mounted on the bottom of the support plate 8, and the drive motor 35 is fixedly mounted on the bottom of the mounting plate 34. The transmission shaft 36 is mounted on the output end of the drive motor 35 and passes through the mounting plate 34 and the support plate 8, rotating in cooperation with both. The rocker arm 37 is fixedly mounted on the outside of the transmission shaft 36, and the guide wheel 38 is rotatably mounted on the end of the rocker arm 37. A guide frame 39 is fixedly mounted on the end of the slide bar 12, and the guide wheel 38 rolls in cooperation with the inner wall of the guide frame 39. The drive motor 35 drives the transmission shaft 36. The rocker arm 37 fixed thereon rotates at a constant speed. The guide wheel 38 at the end of the rocker arm 37 rolls in the guide frame 39 at the end of the slide bar 12. Due to the constraint of the guide frame 39 on the movement of the guide wheel 38, the circular motion of the rocker arm 37 is converted into the linear reciprocating motion of the guide frame 39 and the slide bar 12 fixed thereto along the guide rail 9. This crank-slider mechanism directly converts the continuous rotation of the motor into the efficient linear reciprocating motion of the slide bar 12. It has a compact structure, and the rolling contact between the guide wheel 38 and the guide frame 39 results in low friction, low noise, and low wear. It runs smoothly and realizes the automatic and continuous reciprocating movement of the slide bar 12 and the upper nozzle 27 system.

[0038] like Figures 1-7As shown, a water tank 40 is mounted on the base plate 1, and a dual-head water pump is installed on the water tank 40. Both output ends of the dual-head water pump are connected to a main pipe. Each nozzle 27 has a water supply pipe 42 connected to its bottom. A rectangular groove 41 is provided on the support plate 8. The bottom end of the water supply pipe 42 passes through the rectangular groove 41 and connects to the corresponding main pipe. The dual-head water pump draws water from the water tank 40 and supplies water to the system through its two output ends and the corresponding main pipe. The water supply pipe 42 connects the main pipe to each nozzle 27. The rectangular groove 41 on the support plate 8 provides space for the water supply pipe 42 to move, preventing interference or wear during the swing of the swing arm 23 and the movement of the slider 12. The dual-head water pump design can balance pipeline pressure or serve different zones. The centralized water supply method simplifies the pipeline layout. The design of the rectangular groove 41 ensures that the water supply pipe 42 bends flexibly with the moving parts without stress concentration, significantly improving the reliability and service life of the pipeline under complex movements and preventing leakage.

[0039] like Figures 1-7 As shown, casters are provided at the four corners of the bottom of the base plate 1. The casters are fixed to the base plate 1 with screws. The casters at the four corners of the bottom of the base plate 1 can rotate freely around the vertical axis, allowing the device to move flexibly in any direction under manual pushing. This gives the entire dust suppression device a high degree of mobility, enabling it to be easily transferred to different dust-prone areas within the construction site. This achieves mobile dust suppression and greatly improves the operating coverage and efficiency of a single device.

[0040] like Figures 1-7 As shown, both the guide rail 9 and the slider 12 have trapezoidal cross sections. The guide rail 9 and the slider 12 adopt matching trapezoidal cross sections, so that after the two are combined, the inclined side of the slider 12 and the inclined guide groove surface of the guide rail 9 form a contact fit. This shape can naturally prevent the slider 12 from disengaging in the plane perpendicular to the direction of movement. The trapezoidal cross section has excellent guiding and self-locking properties, which can effectively resist the lateral force and lifting force generated during the swing process, ensure the accurate movement trajectory of the slider 12, prevent it from jumping off the rail or getting stuck, enhance the rigidity and running stability of the moving parts, and adapt to the harsh working conditions of long-term high-frequency use on the construction site.

[0041] The specific working process of this invention is as follows:

[0042] The movement and swing of the nozzle 27 are coordinated through mechanical linkage. The drive motor 35 drives the slide bar 12 to move linearly back and forth along the guide rail 9 through the rocker arm 37 and the guide wheel 38. The toothed sleeves 16 on both sides of the slide bar 12 mesh with the rack 14 on the guide rail 9, converting the linear motion into the rotation of the rotating shaft 15. The half-tooth bevel gear 22 at the end of the rotating shaft 15 rotates accordingly and periodically meshes with the two linkage bevel gears 21 on the connecting shaft 20, thereby driving the connecting shaft 20 and the swing arm 23 fixed thereto to perform automatic reciprocating swing. The nozzle 27 installed at the end of the swing arm 23 thus obtains a compound motion of horizontal movement and periodic swing. The nozzle 27 itself can select different specifications of spray nozzles to change the water mist state by rotating the adjustment head 33. The water source is supplied from the water tank 40 by a double-headed water pump through the main pipe and the water supply pipe 42. The entire device is installed on the base plate 1 with casters and can be flexibly moved to the required position. Its frame is quickly assembled and locked by the plug block 4, the plug rod 7 and the fixing nut to form a stable support.

[0043] It should be noted that the control method of the present invention is controlled by a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The power supply is also common knowledge in the art. Therefore, the present invention will not explain the control method and circuit connection in detail.

[0044] The beneficial effects of the present invention are specifically reflected in the fact that 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 within the protection scope of the present invention.

Claims

1. A dust suppression device for smart construction sites, comprising a base plate (1), characterized in that: A support assembly is provided on the base plate (1), and a support plate (8) is provided on the support assembly. A guide rail (9) is installed on the support plate (8). Fixing plates (10) are fixed on both sides of the guide rail (9). Fixing screws (11) are connected to the fixing plates (10). The fixing plates (10) are fixed to the support plate (8) by fixing screws (11). A slide bar (12) is slidably provided on the inner side of the guide rail (9). Through grooves (13) are opened on both sides of the guide rail (9). A rack (14) is installed inside the through grooves (13). Multiple rotating shafts are rotatably provided on both sides of the slide bar (12). (15) Each rotating shaft (15) is fixedly provided with a toothed sleeve (16) that meshes with the rack (14) on the outside. Support components are provided on both sides of the guide rail (9) corresponding to the position of each rotating shaft (15). The rotating shaft (15) and the corresponding support component are rotated together. A linkage component is provided on the inside of the support component. A swing arm (23) is installed on the linkage component. An installation component is provided at the end of the swing arm (23). A nozzle (27) is connected to the installation component. A drive component is provided on the support plate (8). The drive component is used to drive the slide (12) to move back and forth along the guide rail (9).

2. The dust suppression device for smart construction sites according to claim 1, characterized in that, The support components include a column (2), a diagonal brace (3), a plug (4), a slot (5), a socket (6), and a rod (7). The column (2) is located at the top four corners of the base plate (1). The diagonal brace (3) is fixed between two adjacent columns (2). The plug (4) is fixed at the bottom of the column (2). The slot (5) is located at the top four corners of the base plate (1) and is adapted to the plug (4). The socket (6) is located on the base plate (1) and the plug (4). After the plug (4) is inserted into the slot (5), the socket (6) overlaps. The rod (7) is inserted into the socket (6) and its two ends protrude from the side of the base plate (1). The two ends of the rod (7) are threaded with fixing nuts.

3. The dust suppression device for smart construction sites according to claim 1, characterized in that, The support assembly includes a mounting base (17) and a support rod (19). The mounting base (17) is rotatably located on the outside of the rotating shaft (15). Limiting grooves (18) are provided on both sides of the guide rail (9). The end of the mounting base (17) is slidably engaged with the limiting groove (18). The support rod (19) is fixedly located at the upper and lower ends of the mounting base (17).

4. A dust suppression device for smart construction sites according to claim 3, characterized in that, The linkage assembly includes a connecting shaft (20), a linkage bevel gear (21), and a half-tooth bevel gear (22). The connecting shaft (20) is rotatably positioned between two support rods (19). There are two linkage bevel gears (21). The two linkage bevel gears (21) are symmetrically fixed on the outside of the connecting shaft (20). The half-tooth bevel gear (22) is fixed on the end of the rotating shaft (15) away from the guide rail (9). When the rotating shaft (15) rotates, it drives the half-tooth bevel gear (22) to periodically mesh with the two linkage bevel gears (21). The swing arm (23) is fixedly connected to the connecting shaft (20).

5. A dust suppression device for smart construction sites according to claim 1, characterized in that, The mounting components include mounting holes (24), slots (25), and fastening bolts (26). The mounting holes (24) are formed on the swing arm (23), the slots (25) are formed at the end of the swing arm (23) and communicate with the mounting holes (24), and the fastening bolts (26) are connected to the swing arm (23) and pass through the slots (25). The nozzle (27) is set inside the mounting holes (24). Tightening the fastening bolts (26) can compress the slots (25).

6. A dust suppression device for smart construction sites according to claim 1, characterized in that, The nozzle (27) has an annular groove (28) at its top end. A rotating ring (29) is rotatably disposed inside the annular groove (28). Multiple circumferentially distributed locking blocks (30) are fixedly disposed around the rotating ring (29). A locking groove (31) corresponding to the locking block (30) is provided on the inner side of the annular groove (28). A positioning ring (32) is fixedly disposed on the nozzle (27) at the top end of the annular groove (28). The bottom of the positioning ring (32) is in contact with the top of the locking block (30). An adjusting head (33) is fixedly disposed on the top end of the rotating ring (29). The adjusting head (33) is provided with spray nozzles of various specifications.

7. A dust suppression device for smart construction sites according to claim 1, characterized in that, The drive assembly includes a mounting plate (34), a drive motor (35), a transmission shaft (36), a rocker arm (37), and a guide wheel (38). The mounting plate (34) is fixedly mounted on the bottom of the support plate (8). The drive motor (35) is fixedly mounted on the bottom of the mounting plate (34). The transmission shaft (36) is mounted on the output end of the drive motor (35). The transmission shaft (36) passes through the mounting plate (34) and the support plate (8) and rotates with both of them. The rocker arm (37) is fixedly mounted on the outside of the transmission shaft (36). The guide wheel (38) is rotatably mounted on the end of the rocker arm (37). The end of the slide bar (12) is fixedly provided with a guide frame (39). The guide wheel (38) rolls with the inner wall of the guide frame (39).

8. A dust suppression device for smart construction sites according to claim 1, characterized in that, A water tank (40) is provided on the base plate (1), and a double-headed water pump is installed on the water tank (40). Both output ends of the double-headed water pump are connected to a main pipe. The bottom of each nozzle (27) is connected to a water supply pipe (42). A rectangular groove (41) is provided on the support plate (8). The bottom end of the water supply pipe (42) passes through the rectangular groove (41) and is connected to the corresponding main pipe.

9. A dust suppression device for smart construction sites according to claim 1, characterized in that, The bottom of the base plate (1) is equipped with casters at the four corners, and the casters are fixed to the base plate (1) with screws.

10. A dust suppression device for smart construction sites according to claim 1, characterized in that, Both the guide rail (9) and the slider (12) have trapezoidal cross sections.

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