Green building engineering dust falling device

Abstract

The application relates to the technical field of dust falling devices, and particularly provides a green building engineering dust falling device. The green building engineering dust falling device comprises a moving vehicle, a regulation and control main spraying assembly and two outer spraying assemblies. The application can form main dust falling spraying and auxiliary dust falling spraying, effectively processes dust of different heights and spaces, ensures that there is no dead angle for dust falling, and can adjust the spraying amount and the spraying direction according to actual needs, so as to adapt to different construction environments and dust raising conditions, ensure the uniform distribution of dust falling in the room, avoid the situation that the dust falling is too thick or too thin in some places, in addition, the height and the angle of the multiple outer spraying elements can be adjusted, dust falling water drops can effectively contact large-particle dust, the adsorption effect is enhanced, dust falling treatment is conducted on the extension space and the low place in the room, especially the secondary dust raising caused by the movement of the device, and the dust falling effect is further improved.

Description

Technical Field

[0001] This invention relates to the field of dust suppression device technology, and in particular to a dust suppression device for green building projects. Background Technology

[0002] Construction dust suppression equipment is an environmentally friendly construction device designed to reduce dust pollution generated during construction and protect the health of workers and the surrounding environment. Indoor dust on construction sites is usually composed of a mixture of various materials such as cement, sand, gravel, wood chips, and paint particles. The chemical composition and physical properties of these particles vary, and their sizes differ significantly, resulting in different settling speeds and collection difficulties. At the same time, indoor spaces are relatively enclosed with poor air circulation, making it easy for dust to accumulate in the air and causing localized increases in concentration. Existing dust suppression equipment is mainly designed for outdoor environments and fails to fully consider the special characteristics of indoor spaces. The uneven distribution of dust at low and high levels makes it difficult for dust suppression equipment to cover all areas, especially in low-lying areas and around the equipment. Due to the poor indoor ventilation environment of construction sites, dust at low levels is more likely to remain suspended in the air, resulting in higher local concentrations. Furthermore, the movement of the equipment and workers can easily stir up dust accumulated on the indoor floor, causing it to be stirred up. In addition, the dust in construction sites may carry static electricity, making it easier for dust particles to adhere to the surface of the dust suppression equipment in the indoor environment, and then forming secondary dust when the equipment is moved, increasing the difficulty of dust suppression. Summary of the Invention

[0003] Therefore, it is necessary to provide a dust suppression device for green building projects to solve at least one of the technical problems in the background art.

[0004] A dust suppression device for green building projects includes a mobile vehicle, a main spray control assembly, and two external spray assemblies. The mobile vehicle includes a frame, four electric drive wheels, an internal liquid storage tank, and two spray boom elements. The frame has a hollow interior forming an installation cavity. Adjustable suspensions are rotatably mounted at the four corners of the frame's outer wall, and the four electric drive wheels are respectively mounted in the adjustable suspensions. A filling hole is recessed in the center of the outer side of the frame, and a spray mounting groove is recessed on the inner side of the frame's top surface. A signal receiver is located in the center of the outer side of the frame's top surface. The internal liquid storage tank is installed inside the installation cavity, and the internal cavity of the internal liquid storage tank is connected to the spray mounting groove. A filling connection hole is recessed in the center of the outer side of the internal liquid storage tank, and a filling pipe protrudes from the filling connection hole. The outer end of the filling pipe is installed in the filling hole. Spray outlet holes are recessed at both ends of the top of the inner liquid storage tank's outer side. Boom mounting boxes are located at both ends of the outer side of the frame's top surface. Each boom mounting box has a hollow interior forming a hollow cavity, and a boom is located at the inner end of the hollow cavity. The drive motor has a rotating arm motor at the outer end of the hollow cavity. The output shaft of the rotating arm drive motor has a drive gear, and the output shaft of the rotating arm motor has a rotating gear. A drive mounting platform protrudes from the center of the top surface of the hollow cavity. A hollow steel tube is rotatably mounted inside the drive mounting platform. A first gear is mounted at the inner end of the hollow steel tube and meshes with the drive gear. The bottom of the inner side of the rotating arm mounting box has recessed connecting mounting holes at both ends. A connecting hose is mounted in the connecting mounting hole. The inner end of the connecting hose is rotatably connected to the inner end of the hollow steel tube, and the outer end of the connecting hose is connected to the spray outlet. A rotating mounting hole is recessed in the center of the outer end of the rotating arm mounting box. A first bevel gear is mounted at the outer end of the hollow steel tube and protrudes from the rotating mounting hole. Two spray rotating arm elements are respectively mounted in the two rotating mounting holes. The bottom of the main spray control assembly is mounted in the spray mounting groove. The inner ends of the two external spray assemblies are respectively rotatably mounted in the two spray rotating arm elements.

[0005] As a further improvement of the present invention, each spraying boom element includes a sealed drum, an extension arm, a curved arm, an extension hollow shaft, an outlet hollow pipe, and an outlet bevel gear. The middle part of the sealed drum is rotatably installed in a rotating mounting hole. A rotating adjusting gear is provided at the inner end of the outer wall of the sealed drum, and the rotating adjusting gear is meshed with the rotating gear. A sealing rotating hole is recessed at the inner end of the sealed drum, and the outer end of the hollow steel pipe is rotatably installed in the sealing rotating hole, so that the first bevel gear is rotatably installed in the inner cavity of the sealed drum. The inner side of the extension arm is installed in the outer end of the sealed drum, and the inner side of the curved arm is installed in the outer cavity. On the outside of the extension arm, the internal cavity of the extension arm is connected to the internal cavity of the sealing rotary cylinder and the internal cavity of the curved arm. The middle of the internal cavity of the curved arm is provided with an outflow mounting ring. The two ends of the extension hollow shaft are respectively rotatably mounted on the two ends of the internal cavity of the extension arm. The inner end of the extension hollow shaft is provided with a second bevel gear, which meshes with the first bevel gear. The outer end of the extension hollow shaft is provided with a third bevel gear. The middle of the outflow hollow tube is rotatably mounted in the outflow mounting ring. The outflow bevel gear is installed on the inner end of the outflow hollow tube and meshes with the third bevel gear.

[0006] As a further improvement of the present invention, the main spray control assembly includes a control seat, an intermediate seat, a control cylinder, an electric suction fan, two first control cylinders, two second control cylinders, a spray cylinder, a conical guide plate, and spray elements. The bottom of the control seat is installed in the spray mounting groove. Rotary holes are recessed at both ends of the internal cavity of the control seat. First rotating platforms protrude from both ends of the bottom outer side of the control seat. Intermediate adjusting shafts protrude from both ends of the bottom of the intermediate seat. The two intermediate adjusting shafts are rotatably installed in the two rotating holes of the seat. Second rotating platforms protrude from both ends of the top outer side of the intermediate seat. Third rotating platforms protrude from the top sides of both sides of the intermediate seat. Control mounting rotating platforms protrude from both ends of the top of the intermediate seat. The bottom ends of the two first control cylinders are rotatably installed in the two first rotating platforms. The top of each cylinder is rotatably mounted in two second rotating platforms, and the bottom of each of the two second regulating cylinders is rotatably mounted in two third rotating platforms. Spray shafts protrude from both ends of the bottom of the regulating cylinder, and spray rotating platforms protrude from both sides of the top of the regulating cylinder. Two spray shafts are rotatably mounted in two regulating rotating platforms, and the tops of the two second regulating cylinders are rotatably mounted in two spray rotating platforms. The bottom of the spray cylinder is mounted on the top of the regulating cylinder. The spray cylinder is hollow, forming a spray chamber. Multiple mounting posts protrude at intervals along the circumferential direction from the bottom of the inner wall of the spray chamber. Multiple mist outlet grooves are recessed at intervals along the circumferential direction from the top of the outer wall of the spray chamber. Each mist outlet groove is equipped with a spray mesh. The outer wall of the conical guide plate is mounted on the inner end of multiple mounting posts. An electric suction fan is mounted on the bottom of the conical guide plate, and the spray element is mounted in the spray chamber.

[0007] As a further improvement of the present invention, the spray element includes a double-cone guide cylinder, a regulating cylinder, a regulating rod, a spray rotating motor, a rotating conical block, and an elastic guide plate. The double-cone guide cylinder is installed in the middle of the spray chamber. The bottom of the regulating cylinder is installed in the middle of the top surface of the conical guide plate. The bottom of the regulating rod is installed in the output shaft of the regulating cylinder. The spray rotating motor is installed in the middle of the regulating rod. The bottom of the rotating conical block is recessed with a rotating through hole. The rotating conical block is rotatably installed on the bottom of the regulating rod through the rotating through hole, and the rotating conical block is connected to the output end of the spray rotating motor. The outer wall of the rotating conical block is provided with multiple spiral flow-increasing strips at intervals along the circumferential direction. The outer wall of the elastic guide plate is installed on the top of the inner wall of the spray chamber, and the middle of the bottom surface of the elastic guide plate is connected to the top of the regulating rod.

[0008] As a further improvement of the present invention, each external spraying assembly includes an external spraying frame, a rotation control element, and multiple external spraying elements. The external spraying frame includes a liquid guiding installation pipe and a spraying cross plate. The inner end of the liquid guiding installation pipe is rotatably installed on the outside of the curved arm. The inner end of the inner wall of the liquid guiding installation pipe is provided with a connecting protrusion ring, which is connected to the outer end of the outflow hollow pipe. The inner sides of the spraying cross plate are respectively installed on both ends of the liquid guiding installation pipe. The two ends of the rotation control element are respectively installed on the outer sides of the two spraying cross plates. Multiple external spraying elements are respectively installed at intervals along the length direction in the rotation control element.

[0009] As a further improvement of the present invention, a plurality of liquid outlet connecting pipes are provided at intervals along the length direction on the top surface of the liquid guiding installation pipe, an adjustment groove is provided at the top of the outer side of the spraying horizontal plate, and an installation hole is provided at the bottom of the outer side of the spraying horizontal plate.

[0010] As a further improvement of the present invention, the rotation control element includes a control mounting column, a rotation control cylinder, a rotation control slide bar, and a rack. The two ends of the control mounting column are respectively installed in the mounting holes of two spraying horizontal plates. The inner end of the rotation control cylinder is installed on the top outer side of one of the spraying horizontal plates. One end of the rotation control slide bar is connected to the output shaft of the rotation control cylinder, and the other end of the rotation control slide bar is slidably installed in the control groove of the other spraying horizontal plate. The inner side of the rotation control slide bar is recessed with an arc-shaped sliding surface, and the top of the rack bar is installed on the outer side of the bottom surface of the rotation control slide bar.

[0011] As a further improvement of the present invention, each external spraying element includes an inlet pipe, a mounting block, a limiting rotating block, an external spray pipe, a spray regulating cylinder, a spray control pipe, and a spray head. The inner side of the mounting block is installed on the bottom of the outer side of the inlet pipe. The top and bottom of the outer side of the mounting block are respectively provided with mounting grooves. The two mounting grooves respectively abut against and fit against the inner side of the regulating mounting column and the arc-shaped sliding surface. Each mounting groove has a pre-set rotation groove at both ends. An adjustment gear is provided in the middle of the outer side of the mounting block. The adjustment gear meshes with a spur rack. The inner middle of the limiting block is connected to the outer side of the adjusting gear. The inside of the liquid inlet pipe is hollow to form a liquid inlet cavity. A conical groove is recessed in the middle of the liquid inlet cavity. The top of the outer spray pipe is installed at the bottom of the liquid inlet pipe. The inner cavity of the outer spray pipe is provided with multiple spiral protrusions at intervals along the circumference. The spray regulating cylinder is installed at the top of the liquid inlet pipe. The spray control pipe is slidably installed in the liquid inlet cavity and multiple spiral protrusions. The top of the spray control pipe is connected to the output shaft of the spray regulating cylinder. The top of the spray head is rotatably installed at the bottom of the spray control pipe.

[0012] As a further improvement of the present invention, a connecting pipe is provided in the middle of the inner side of the inlet pipe, the top of the connecting pipe is connected to the outlet connecting pipe through a pipe, and the inner cavity of the inlet pipe is connected to the conical groove.

[0013] As a further improvement of the present invention, a spray hole is recessed in the middle of the bottom surface of the spray control pipe, and an elastic inverted cone block is protruding from the top of the outer wall of the spray control pipe. The outer wall of the elastic inverted cone block abuts against the inner wall of the conical groove. An inclined connecting hole is recessed on the inner side of the elastic inverted cone block, and the inclined connecting hole communicates with the spray hole. Multiple deformable liquid discharge grooves are recessed at intervals along the circumferential direction on the outer wall of the elastic inverted cone block, and multiple triangular liquid guide plates are recessed at intervals along the circumferential direction on the outer wall of the spray head.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention utilizes a mobile vehicle, a main spray control unit, and two external spray units to form a main dust suppression spray and a secondary dust suppression spray. This effectively treats dust at different heights and in different spaces, ensuring dust suppression without blind spots. Furthermore, the spray volume and direction can be adjusted according to actual needs to adapt to different construction environments and dust conditions, ensuring uniform dust distribution indoors and avoiding localized over- or under-concentration. Additionally, the height and angle of multiple external spray elements can be adjusted, allowing the dust-suppressing water droplets to more effectively contact large dust particles, enhancing the adsorption effect. This further improves the dust suppression effect by treating secondary dust generated in extended indoor spaces and lower areas, especially during device movement.

[0016] 2. This invention can be adjusted according to different indoor environments and dust conditions, flexibly adjusting the spray angle and height, thereby specifically treating dust generated at high and low places indoors, adapting to the needs of different heights and spaces, enhancing the targeting of dust suppression, and at the same time, achieving uniform dust suppression and cleaning dust that may adhere to the surface of the dust suppression equipment, reducing the occurrence of secondary dust. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention.

[0018] Figure 2 This is an internal schematic diagram of an embodiment of the present invention.

[0019] Figure 3 This is an internal schematic diagram of another embodiment of the present invention.

[0020] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0021] Figure 5 This is a three-dimensional schematic diagram of the main spray control assembly in one embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the internal structure of the main spray control assembly in one embodiment of the present invention.

[0023] Figure 7 This is a three-dimensional schematic diagram of an external spraying component in one embodiment of the present invention.

[0024] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0025] Figure 9 This is a schematic diagram of the internal structure of the external spraying element in one embodiment of the present invention.

[0026] Figure 10 for Figure 9 Enlarged view of point C in the middle.

[0027] In the picture:

[0028] 10. Mobile vehicle; 11. Frame; 12. Electric drive wheel; 13. Spraying boom element; 14. Internal reservoir; 110. Mounting cavity; 111. Adjustable suspension; 112. Filling port; 113. Spray mounting slot; 114. Signal receiver; 141. Filling connection hole; 142. Filling pipe; 143. Spray outlet hole; 117. Boom mounting box; 118. Boom drive motor; 119. Hollow cavity; 150. Drive gear; 151. Hollow steel pipe; 152. First gear; 153. Connecting mounting hole; 154. Rotating mounting hole; 155. First bevel gear; 131. Sealed rotating cylinder; 13 2. Extension arm; 133. Bent arm; 134. Extension hollow rotating shaft; 135. Outflow hollow pipe; 136. Outflow bevel gear; 137. Second bevel gear; 138. Third bevel gear; 20. Main spray control assembly; 21. Control seat; 22. Intermediate seat; 23. Control cylinder; 24. First control cylinder; 25. Second control cylinder; 26. Spray cylinder; 27. Spray element; 28. Conical guide plate; 29. ​​Electric suction fan; 211. Seat body rotation hole; 212. First rotating platform; 221. Intermediate adjusting rotating shaft; 222. Second rotating platform; 223. Third rotating platform; 224. Control mounting rotating platform; 2 31. Spray shaft; 232. Spray turntable; 261. Spray chamber; 262. Mounting column; 263. Mist outlet groove; 264. Spray mesh; 271. Double cone guide tube; 272. Control cylinder; 273. Control rod; 274. Spray rotation motor; 275. Rotating cone block; 276. Elastic guide plate; 277. Spiral flow booster strip; 30. External spraying assembly; 31. External spraying frame; 32. Rotation control element; 33. External spraying element; 311. Liquid guide mounting pipe; 312. Spraying cross plate; 313. Liquid outlet connection pipe; 314. Control chute; 315. Mounting hole; 321. Control mounting column; 322. Rotary control cylinder; 323. Rotary control slide bar; 324. Straight rack; 325. Arc-shaped sliding surface; 331. Liquid inlet pipe; 332. Mounting block; 333. Limiting block; 334. External spray pipe; 335. Spray adjustment cylinder; 336. Spray control pipe; 337. Spray head; 338. Mounting groove; 339. Rotary preset groove; 341. Adjustment gear; 342. Liquid inlet chamber; 343. Conical groove; 344. Spiral protrusion; 340. Connecting pipe; 345. Spray hole; 346. Elastic inverted cone block; 347. Inclined connecting hole; 348. Deformable drain groove; 349. Triangular guide plate. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0030] In the description of this invention, it should be noted that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] Please see Figures 1 to 10A dust suppression device for green building engineering includes a mobile vehicle 10, a main spray control assembly 20, and two external spray assemblies 30. The mobile vehicle 10 includes a frame 11, four electric drive wheels 12, an internal liquid storage tank 14, and two spray boom elements 13. The frame 11 has a hollow interior forming an installation cavity 110. Adjustable suspensions 111 are rotatably installed at the four corners of the outer wall of the frame 11. The four electric drive wheels 12 are respectively installed in the adjustable suspensions 111. A filling hole 112 is recessed in the middle of the outer side of the frame 11. A spray mounting groove 113 is recessed on the inner side of the top surface of the frame 11. A signal receiver 114 is provided. The inner liquid storage tank 14 is installed inside the mounting cavity 110, and the internal cavity of the inner liquid storage tank 14 is connected to the spray mounting groove 113. A filling communication hole 141 is recessed in the middle of the outer side of the inner liquid storage tank 14, and a filling pipe 142 is protruding from the filling communication hole 141. The outer end of the filling pipe 142 is installed in the filling hole 112. Spray outlet holes 143 are recessed at both ends of the top of the outer side of the inner liquid storage tank 14. A swing arm mounting box 117 is provided at both ends of the outer side of the top surface of the frame 11. The swing arm mounting box 117 is hollow inside, forming a hollow cavity 119. A rotating arm drive motor 118 is installed at the inner end of the hollow cavity 119, and a rotating arm rotation motor is installed at the outer end of the hollow cavity 119. A drive gear 150 is installed on the output shaft of the rotating arm drive motor 118, and a rotation gear is installed on the output shaft of the rotating arm rotation motor. A drive mounting platform protrudes from the center of the top surface of the hollow cavity 119. A hollow steel tube 151 is rotatably mounted inside the drive mounting platform. A first gear 152 is installed at the inner end of the hollow steel tube 151, and the first gear 152 meshes with the drive gear 150. A connecting mounting hole 153 is recessed at both ends of the bottom inner side of the rotating arm mounting box 117. An internal connecting hose is provided, the inner end of which is rotatably connected to the inner end of the hollow steel pipe 151, and the outer end of which is connected to the spray outlet 143. A rotating mounting hole 154 is recessed in the middle of the outer end of the rotating arm mounting box 117. A first bevel gear 155 is provided at the outer end of the hollow steel pipe 151, and the first bevel gear 155 protrudes from the rotating mounting hole 154. Two spray rotating arm elements 13 are respectively installed in the two rotating mounting holes 154. The bottom of the main spray control assembly 20 is installed in the spray mounting groove 113. The inner ends of the two external spray assemblies 30 are respectively rotatably installed in the two spray rotating arm elements 13.

[0033] Each spray boom element 13 includes a sealed drum 131, an extension arm 132, a curved arm 133, an extension hollow shaft 134, an outlet hollow pipe 135, and an outlet bevel gear 136. The sealed drum 131 is rotatably mounted in the rotating mounting hole 154 at its center. A rotating adjusting gear is provided at the inner end of the outer wall of the sealed drum 131, and the rotating adjusting gear is meshed with the rotating gear. A sealing rotating hole is recessed at the inner end of the sealed drum 131, and the outer end of the hollow steel pipe 151 is rotatably mounted in the sealing rotating hole, so that the first bevel gear 155 is rotatably mounted in the inner cavity of the sealed drum 131. The inner side of the extension arm 132 is mounted in the outer end of the sealed drum 131, and the inner side of the curved arm 133 is mounted in the outer end of the extension arm 132. The inner cavity of the extension arm 132 is connected to the inner cavity of the sealing rotating cylinder 131 and the inner cavity of the curved arm 133. The inner cavity of the curved arm 133 is provided with an outflow mounting ring in the middle. The two ends of the extension hollow shaft 134 are respectively rotatably mounted on the two ends of the inner cavity of the extension arm 132. The inner end of the extension hollow shaft 134 is provided with a second bevel gear 137, which meshes with the first bevel gear 155. The outer end of the extension hollow shaft 134 is provided with a third bevel gear 138. The middle part of the outflow hollow tube 135 is rotatably mounted in the outflow mounting ring. The outflow bevel gear 136 is installed on the inner end of the outflow hollow tube 135, and the outflow bevel gear 136 meshes with the third bevel gear 138.

[0034] The main spray control assembly 20 includes a control base 21, an intermediate base 22, a control cylinder 23, an electric suction fan 29, two first control cylinders 24, two second control cylinders 25, a spray cylinder 26, a conical guide plate 28, and a spray element 27. The bottom of the control base 21 is installed in the spray mounting groove 113. The two ends of the internal cavity of the control base 21 are respectively provided with seat rotation holes 211. The two ends of the bottom of the outer side of the control base 21 are respectively provided with first rotating platforms 212. The two ends of the bottom of the intermediate base 22 are respectively provided with intermediate adjusting shafts 221. The two intermediate adjusting shafts 221 are respectively rotatably installed in the two seat rotation holes 211. The two ends of the top of the outer side of the intermediate base 22 are respectively provided with second rotating platforms 222. The tops of both sides of the intermediate base 22 are respectively provided with third rotating platforms 223. The two ends of the top of the intermediate base 22 are respectively provided with control mounting rotating platforms 224. The bottom ends of the two first control cylinders 24 are respectively rotatably installed in the two first rotating platforms 212. The top ends of the two first control cylinders 24 are respectively rotated. The spray cylinder 26 is rotatably mounted in two second rotating platforms 222, and the bottom ends of two second regulating cylinders 25 are rotatably mounted in two third rotating platforms 223. Spray shafts 231 protrude from both ends of the bottom of the regulating cylinder 23, and spray rotating platforms 232 protrude from both sides of the top of the regulating cylinder 23. Two spray shafts 231 are rotatably mounted in two regulating rotating platforms 224, and the top ends of the two second regulating cylinders 25 are rotatably mounted in the two spray rotating platforms 232. The bottom of the spray cylinder 26 is mounted in the regulating platform 224. At the top of the cylinder 23, the interior of the spray cylinder 26 is hollow and forms a spray chamber 261. Multiple mounting posts 262 are spaced out along the circumferential direction at the bottom of the inner wall of the spray chamber 261. Multiple mist outlet grooves 263 are spaced out along the circumferential direction at the top of the outer wall of the spray chamber 261. Each mist outlet groove 263 is provided with a spray mesh 264. The outer wall of the conical guide plate 28 is installed at the inner end of the multiple mounting posts 262. The electric suction fan 29 is installed at the bottom of the conical guide plate 28. The spray element 27 is installed in the spray chamber 261.

[0035] The spray element 27 includes a double-cone guide cylinder 271, a regulating cylinder 272, a regulating rod 273, a spray rotation motor 274, a rotating cone block 275, and an elastic guide plate 276. The double-cone guide cylinder 271 is installed in the middle of the spray chamber 261. The bottom of the regulating cylinder 272 is installed in the middle of the top surface of the cone guide plate 28. The bottom of the regulating rod 273 is installed in the output shaft of the regulating cylinder 272. The spray rotation motor 274 is installed in the middle of the regulating rod 273. The bottom of the rotating cone block 275 is recessed with a rotating through hole. The rotating cone block 275 is rotatably installed on the bottom of the regulating rod 273 through the rotating through hole, and the rotating cone block 275 is connected to the output end of the spray rotation motor 274. The outer wall of the rotating cone block 275 is provided with multiple spiral flow-increasing strips 277 at intervals along the circumferential direction. The outer wall of the elastic guide plate 276 is installed on the top of the inner wall of the spray chamber 261, and the middle of the bottom surface of the elastic guide plate 276 is connected to the top of the regulating rod 273.

[0036] Each external spraying assembly 30 includes an external spraying frame 31, a rotation control element 32, and multiple external spraying elements 33. The external spraying frame 31 includes a liquid guiding installation pipe 311 and a spraying cross plate 312. The inner end of the liquid guiding installation pipe 311 is rotatably installed on the outside of the bent arm 133. The inner end of the inner wall of the liquid guiding installation pipe 311 is provided with a connecting protrusion ring, which is connected to the outer end of the outflow hollow pipe 135. The inner sides of the spraying cross plate 312 are respectively installed on both ends of the liquid guiding installation pipe 311. The two ends of the rotation control element 32 are respectively installed on the outer sides of the two spraying cross plates 312. Multiple external spraying elements 33 are installed at intervals along the length direction in the rotation control element 32.

[0037] The top surface of the liquid guiding installation pipe 311 is provided with multiple liquid outlet connection pipes 313 at intervals along the length direction, the top of the outer side of the spraying horizontal plate 312 is provided with an adjustment groove 314, and the bottom of the outer side of the spraying horizontal plate 312 is provided with an installation hole 315.

[0038] The rotation control element 32 includes a control mounting column 321, a rotation control cylinder 322, a rotation control slide bar 323, and a rack 324. The two ends of the control mounting column 321 are respectively installed in the mounting holes 315 of the two spraying horizontal plates 312. The inner end of the rotation control cylinder 322 is installed on the top outer side of one of the spraying horizontal plates 312. One end of the rotation control slide bar 323 is connected to the output shaft of the rotation control cylinder 322, and the other end of the rotation control slide bar 323 is slidably installed in the control groove 314 of the other spraying horizontal plate 312. The inner side of the rotation control slide bar 323 is recessed with an arc-shaped sliding surface 325. The top of the rack 324 is installed on the outer side of the bottom surface of the rotation control slide bar 323.

[0039] Each external spraying element 33 includes an inlet pipe 331, a mounting block 332, a limiting rotating block 333, an external spray pipe 334, a spray regulating cylinder 335, a spray control pipe 336, and a spray head 337. The inner side of the mounting block 332 is installed on the outer bottom of the inlet pipe 331. The top and bottom of the outer side of the mounting block 332 are respectively provided with mounting grooves 338. The two mounting grooves 338 respectively abut against and fit against the inner side of the regulating mounting column 321 and the arc-shaped sliding surface 325. Each mounting groove 338 is provided with a rotation preset groove 339 at both ends. An adjustment gear 341 is provided in the middle of the outer side of the mounting block 332. The adjustment gear 341 is meshed with a spur rack 324. The limiting rotating block... The inner middle part of the 333 is connected to the outer side of the adjusting gear 341. The inside of the liquid inlet pipe 331 is hollow to form a liquid inlet cavity 342. A conical groove 343 is recessed in the middle of the liquid inlet cavity 342. The top of the outer spray pipe 334 is installed at the bottom of the liquid inlet pipe 331. The inner cavity of the outer spray pipe 334 is provided with multiple spiral protrusions 344 at intervals along the circumferential direction. The spray regulating cylinder 335 is installed at the top of the liquid inlet pipe 331. The spray control pipe 336 is slidably installed in the liquid inlet cavity 342 and multiple spiral protrusions 344. The top of the spray control pipe 336 is connected to the output shaft of the spray regulating cylinder 335. The top of the spray head 337 is rotatably installed at the bottom of the spray control pipe 336.

[0040] A connecting pipe 340 protrudes from the middle of the inner side of the inlet pipe 331. The top of the connecting pipe 340 is connected to the outlet connecting pipe 313 through a pipe, and the internal cavity of the inlet pipe 331 is connected to the conical groove 343.

[0041] A spray hole 345 is recessed in the middle of the bottom surface of the spray control pipe 336. An elastic inverted cone block 346 is protruding from the top of the outer wall of the spray control pipe 336. The outer wall of the elastic inverted cone block 346 abuts against the inner wall of the conical groove 343. An inclined connecting hole 347 is recessed on the inner side of the elastic inverted cone block 346. The inclined connecting hole 347 communicates with the spray hole 345. Multiple deformable liquid discharge grooves 348 are recessed at intervals along the circumferential direction on the outer wall of the elastic inverted cone block 346. Multiple triangular liquid guide plates 349 are recessed at intervals along the circumferential direction on the outer wall of the spray head 337.

[0042] For example, in one embodiment: the outer end of the filling pipe 142 is connected to an external water pump via a flexible hose, and an atomizer is installed in the internal cavity of the inner reservoir 14. The signal receiver 114 is used to receive telecommunications signals from an external remote control device.

[0043] For example, in one embodiment: when it is necessary to move the dust in the room, four electric drive wheels 12 are activated to drive the device to move. At the same time, the external water pump and atomizer will be activated synchronously, thereby delivering dust-suppressing water flow to the two external spraying components 30 and outputting the main dust-suppressing spray to the main spray control component 20. The electric suction fan 29 will be activated, thereby sucking the main dust-suppressing spray to the conical guide plate 28 and the spray element 27. The main dust-suppressing spray will guide and disperse the conical guide plate 28 to the outer edge of the bottom of the spray chamber 261. At the same time, the spray rotation motor 274 will be activated, thereby driving the rotating conical block 275 to rotate, thereby causing multiple spiral flow-increasing strips 277 to rotate as well, thereby accelerating the main dust-suppressing spray to flow out from the double conical guide cylinder 271 and impact the bottom surface of the elastic guide plate 276, and then spraying the dust in the room through multiple spray meshes 264. Simultaneously, the dust-suppressing water flows through the connecting hose into the hollow steel pipe 151, then sequentially through the internal cavity of the sealed rotating cylinder 131, the extended hollow rotating shaft 134, the internal cavity of the bent arm 133, and the outflow hollow pipe 135 into the liquid guiding installation pipe 311. Subsequently, it flows through multiple liquid outlet connecting pipes 313 and multiple pipes into the internal cavities of multiple liquid inlet pipes 331. Because the elastic inverted cone block 346 is elastic, and its outer wall is recessed with multiple deformation drainage grooves 348 at intervals along the circumference, when the spray control pipe... When 336 and the elastic inverted cone block 346 are at their lowest points, the bottom of the inner wall of the conical groove 343 will squeeze the elastic inverted cone block 346, thereby deforming the elastic inverted cone block 346. The deformed drain groove 348 will be squeezed and collapsed, thereby closing the deformed drain groove 348. This allows the dust-suppressing water flow to enter the spray head 337 only through the inclined connecting hole 347 and the spray hole 345, and spray out from the spray head 337 to form a secondary dust-suppressing spray, which can suppress dust in the extended space and low places of the room, especially the dust caused by the movement of the device.

[0044] For example, in one embodiment: when the dust particles are large or the dust is statically charged, resulting in a high dust concentration around the device or even adhering to the surface of the dust suppression equipment, the regulating cylinder 272 will be activated, causing the output shaft of the regulating cylinder 272 to retract, thereby driving the regulating rod 273, the spray rotation motor 274, and the rotating cone block 275 to move accordingly. This increases the distance between the rotating cone block 275 and the double cone guide tube 271, causing the speed at which the main dust suppression spray flows out of the double cone guide tube 271 to decrease. Furthermore, since the bottom center of the elastic guide plate 276 is connected to the top of the regulating rod 273, the elastic guide plate 276 deforms, becoming an inverted cone shape. This guides the main dust suppression spray, causing it to be sprayed out at an angle under its guidance, pushing the dust away from the equipment while suppressing dust. Simultaneously, the spray regulating cylinder 335 will be activated, causing its output shaft to retract. This, in turn, drives the spray control pipe 336 and spray head 337 to slide upwards, causing the elastic inverted cone block 346 to move accordingly. This restores the original shape of multiple deformable drainage channels 348, allowing some of the dust-suppressing water flowing from the conical groove 343 to flow out of the multiple deformable drainage channels 348 into the interior of the outer spray pipe 334. The water then impacts the multiple triangular guide plates 349 on the outer wall of the spray head 337 via multiple spiral protrusions 344, causing the spray head 337 to rotate. This forms dust-suppressing water droplets that diffuse outwards, adsorbing large dust particles and allowing the water droplets to fall onto the surface of the device, cleaning any dust that may be adhering to the surface of the dust-suppressing equipment. In addition, the rotation of the spray head 337 also increases the uniformity of the secondary dust-suppressing spray diffusion, ensuring uniform dust suppression.

[0045] For example, in one embodiment: when dust suppression is required on high indoor areas or ceilings, the rotating arm motor is activated, which in turn causes the rotating gear to rotate, thereby driving the sealed rotating cylinder 131 to rotate. This causes the extension arm 132, the curved arm 133, and the external spraying assembly 30 to rotate and move upward. Simultaneously, the rotating arm drive motor 118 is activated, which drives the drive gear 150 to rotate, thereby causing the first gear 152 and the hollow steel pipe 151 to rotate. This causes the first bevel gear 155 to rotate, which in turn causes the second bevel gear 137, the extended hollow rotating shaft 134, and the third bevel gear 138 to rotate. This causes the outflow bevel gear 136 and the outflow hollow pipe 135 to rotate, which in turn causes the external spraying assembly 30 to rotate. This causes multiple nozzles and multiple external spray pipes 334 to rotate, thereby causing the auxiliary dust suppression spray to be sprayed to suppress dust on high indoor areas or ceilings.

[0046] When it is necessary to adjust the spray angle of the spray head 337, the rotary control cylinder 322 is activated, which in turn drives the rotary control slide 323 to move, which in turn causes the rack 324 to move, which in turn causes the adjusting gear 341 to rotate, which in turn causes the external spraying element 33 to rotate, thereby adjusting the spray angle of the spray head 337.

[0047] Installation process: Four electric drive wheels 12 are installed in the adjustable suspension 111. The inner reservoir 14 is installed inside the mounting cavity 110, and the inner cavity of the inner reservoir 14 is connected to the spray mounting slot 113. The outer end of the filling pipe 142 is installed in the filling hole 112. Two spraying arm elements 13 are installed in two rotating mounting holes 154. The middle part of the sealing cylinder 131 is rotatably installed in the rotating mounting hole 154, and the rotating adjusting gear is meshed with the rotating gear. The outer end of the hollow steel pipe 151 is rotatably installed in the sealing rotating hole, so that the first bevel gear 155 is rotatably set in the inner cavity of the sealing cylinder 131. The inner side of the extension arm 132 is installed in the outer end of the sealing cylinder 131, and the inner side of the curved arm 133 is installed on the outer side of the extension arm 132. The internal cavity of the extension arm 132 is connected to the internal cavity of the sealed rotating cylinder 131 and the internal cavity of the bent arm 133. The two ends of the extension hollow shaft 134 are rotatably mounted on the two ends of the internal cavity of the extension arm 132. The second bevel gear 137 meshes with the first bevel gear 155. The middle part of the outlet hollow tube 135 is rotatably mounted in the outlet mounting ring. The outlet bevel gear 136 is mounted on the inner end of the outlet hollow tube 135 and meshes with the third bevel gear 138. The bottom of the control seat 21 is installed in the spray mounting groove 113. The two intermediate adjusting shafts 221 are rotatably mounted in the two seat rotation holes 211. The bottom ends of the two first regulating cylinders 24 are rotatably mounted on the two first rotating platforms 212. The top ends of cylinders 24 are rotatably mounted in two second rotating platforms 222, the bottom ends of two second regulating cylinders 25 are rotatably mounted in two third rotating platforms 223, two spray shafts 231 are rotatably mounted in two regulating rotating platforms 224, the top ends of two second regulating cylinders 25 are rotatably mounted in two spray rotating platforms 232, the bottom of spray cylinder 26 is mounted on the top of regulating cylinder 23, the outer wall of conical guide plate 28 is mounted on the inner end of multiple mounting columns 262, an electric suction fan 29 is mounted on the bottom of conical guide plate 28, a double conical guide cylinder 271 is mounted in the middle of spray chamber 261, the bottom of regulating cylinder 272 is mounted in the middle of the top surface of conical guide plate 28, the bottom of regulating rod 273 is mounted in the output shaft of regulating cylinder 272, and a spray rotation motor 274 is installed. Installed in the middle of the control rod 273, the rotating conical block 275 is rotatably installed at the bottom of the control rod 273 through the rotating through hole, and the rotating conical block 275 is connected to the output end of the spray rotating motor 274. The outer wall of the elastic guide plate 276 is installed on the top of the inner wall of the spray chamber 261, and the middle of the bottom surface of the elastic guide plate 276 is connected to the top of the control rod 273. The inner end of the liquid guiding installation pipe 311 is rotatably installed on the outside of the bent arm 133, and the connecting convex ring is connected to the outer end of the outflow hollow pipe 135. The inner sides of the spraying horizontal plate 312 are respectively installed on both ends of the liquid guiding installation pipe 311. The two ends of the control installation horizontal column 321 are respectively installed in the mounting holes 315 of the two spraying horizontal plates 312. The inner end of the rotating control cylinder 322 is installed on the top of the outer side of one of the spraying horizontal plates 312.One end of the rotating control slide bar 323 is connected to the output shaft of the rotating control cylinder 322, and the other end of the rotating control slide bar 323 is slidably installed in the control groove 314 of another spraying horizontal plate 312. The top of the rack 324 is installed on the outer side of the bottom surface of the rotating control slide bar 323. The inner side of the mounting block 332 is installed on the bottom of the outer side of the liquid inlet pipe 331. The two mounting grooves 338 respectively abut against and fit against the inner side of the control mounting column 321 and the arc-shaped sliding surface 325. The inner center of the positioner block 333 is connected to the outer side of the adjustment gear 341. The top of the outer spray pipe 334 is installed at the bottom of the liquid inlet pipe 331. The spray regulating cylinder 335 is installed at the top of the liquid inlet pipe 331. The spray control pipe 336 is slidably installed in the liquid inlet chamber 342 and multiple spiral protrusions 344, and the top of the spray control pipe 336 is connected to the output shaft of the spray regulating cylinder 335. The top of the spray head 337 is rotatably installed at the bottom of the spray control pipe 336.

[0048] This invention can achieve:

[0049] 1. This invention utilizes a mobile vehicle 10, a main spray assembly 20, and two external spray assemblies 30 to form a main dust-suppressing spray and a secondary dust-suppressing spray. This effectively treats dust at different heights and in different spaces, ensuring dust suppression without dead angles. Furthermore, the spray volume and direction can be adjusted according to actual needs to adapt to different construction environments and dust conditions, ensuring uniform distribution of dust indoors and avoiding localized over-concentration or under-concentration. In addition, the height and angle of multiple external spray elements 33 can be adjusted, and the resulting dust-suppressing water droplets can more effectively contact large dust particles, enhancing the adsorption effect. This further improves the dust suppression effect by treating secondary dust generated in extended indoor spaces and lower areas, especially during device movement.

[0050] 2. This invention can be adjusted according to different indoor environments and dust conditions, flexibly adjusting the spray angle and height, thereby specifically treating dust generated at high and low places indoors, adapting to the needs of different heights and spaces, enhancing the targeting of dust suppression, and at the same time, achieving uniform dust suppression and cleaning dust that may adhere to the surface of the dust suppression equipment, reducing the occurrence of secondary dust.

[0051] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A dust suppression device for green building projects, characterized in that: The system includes a mobile vehicle (10), a main spray control assembly (20), and two external spray assemblies (30). The mobile vehicle (10) includes a frame (11), four electric drive wheels (12), an internal liquid storage tank (14), and two spray boom elements (13). The frame (11) has a hollow interior forming an installation cavity (110). Adjustable suspensions (111) are rotatably installed at the four corners of the outer wall of the frame (11). The four electric drive wheels (12) are installed in the adjustable suspensions (111). A filling hole (112) is recessed in the middle of the outer side of the frame (11). A spray mounting groove (113) is recessed on the inner side of the top surface of the frame (11). A signal is provided in the middle of the outer side of the top surface of the frame (11). The receiver (114) and the inner liquid tank (14) are installed inside the mounting cavity (110), and the inner cavity of the inner liquid tank (14) is connected to the spray mounting groove (113). The middle of the outer side of the inner liquid tank (14) is recessed with a filling communication hole (141), and a filling pipe (142) is protruding from the filling communication hole (141). The outer end of the filling pipe (142) is installed in the filling hole (112). Spray outlet holes (143) are recessed at both ends of the top of the outer side of the inner liquid tank (14). A swing arm mounting box (117) is provided at both ends of the outer side of the top surface of the frame (11). The swing arm mounting box (117) is hollow inside to form a hollow cavity (119). A rotating arm drive motor (118) is provided at the inner end of the hollow cavity (119), and a rotating arm rotation motor is provided at the outer end of the hollow cavity (119). A drive gear (150) is provided on the output shaft of the rotating arm drive motor (118), and a rotation gear is provided on the output shaft of the rotating arm rotation motor. A drive mounting platform is protruding from the center of the top surface of the hollow cavity (119). A hollow steel pipe (151) is rotatably installed inside the drive mounting platform. A first gear (152) is provided at the inner end of the hollow steel pipe (151), and the first gear (152) meshes with the drive gear (150). A connecting mounting hole (153) is recessed at both ends of the bottom inner side of the rotating arm mounting box (117). The inner end of the connecting hose is rotatably connected to the inner end of the hollow steel pipe (151), and the outer end of the connecting hose is connected to the spray outlet hole (143). The middle of the outer end of the rotating arm mounting box (117) is recessed with a rotating mounting hole (154). The outer end of the hollow steel pipe (151) is provided with a first bevel gear (155), and the first bevel gear (155) protrudes from the rotating mounting hole (154). The two spray rotating arm elements (13) are respectively installed in the two rotating mounting holes (154). The bottom of the main spray control assembly (20) is installed in the spray mounting groove (113). The inner ends of the two external spray assemblies (30) are respectively rotatably installed in the two spray rotating arm elements (13). The main spray control assembly (20) includes a control seat (21), an intermediate seat (22), a control cylinder (23), an electric suction fan (29), two first control cylinders (24), two second control cylinders (25), a spray cylinder (26), a conical guide plate (28), and a spray element (27). The spray cylinder (26) is hollow inside and has a spray chamber (261). The spray element (27) includes a double-cone guide tube (271), a regulating cylinder (272), a regulating rod (273), a spray rotation motor (274), a rotating cone block (275), and an elastic guide plate (276). The double-cone guide tube (271) is installed in the middle of the spray chamber (261). The bottom of the regulating cylinder (272) is installed in the middle of the top surface of the cone guide plate (28). The bottom of the regulating rod (273) is installed in the output shaft of the regulating cylinder (272). The spray rotation motor (274) is installed in the middle of the regulating rod (273). The bottom of the rotating cone block (275) is recessed with a rotating through hole. The rotating cone block (275) is rotatably installed on the bottom of the control rod (273) through the rotating through hole. The rotating cone block (275) is connected to the output end of the spray rotating motor (274). The outer wall of the rotating cone block (275) is provided with multiple spiral flow-increasing strips (277) at intervals along the circumferential direction. The outer wall of the elastic guide plate (276) is installed on the top of the inner wall of the spray chamber (261). The middle part of the bottom surface of the elastic guide plate (276) is connected to the top of the control rod (273).

2. The dust suppression device for green building projects according to claim 1, characterized in that: Each spray boom element (13) includes a sealing drum (131), an extension arm (132), a curved arm (133), an extension hollow shaft (134), an outlet hollow pipe (135), and an outlet bevel gear (136). The sealing drum (131) is rotatably mounted in the rotating mounting hole (154) in the middle. A rotating adjusting gear is provided at the inner end of the outer wall of the sealing drum (131), and the rotating adjusting gear is meshed with the rotating gear. A sealing rotating hole is recessed at the inner end of the sealing drum (131), and the outer end of the hollow steel pipe (151) is rotatably mounted in the sealing rotating hole, so that the first bevel gear (155) is rotatably mounted in the inner cavity of the sealing drum (131). The inner side of the extension arm (132) is mounted in the outer end of the sealing drum (131), and the inner side of the curved arm (133) is mounted in the extension arm (132). The outer side, and the internal cavity of the extension arm (132) is connected to the internal cavity of the sealing cylinder (131) and the internal cavity of the bent arm (133). The middle of the internal cavity of the bent arm (133) is provided with an outflow mounting ring. The two ends of the extension hollow shaft (134) are respectively rotatably installed at the two ends of the internal cavity of the extension arm (132). The inner end of the extension hollow shaft (134) is provided with a second bevel gear (137). The second bevel gear (137) meshes with the first bevel gear (155). The outer end of the extension hollow shaft (134) is provided with a third bevel gear (138). The middle of the outflow hollow tube (135) is rotatably installed in the outflow mounting ring. The outflow bevel gear (136) is installed at the inner end of the outflow hollow tube (135), and the outflow bevel gear (136) meshes with the third bevel gear (138).

3. The dust suppression device for green building projects according to claim 2, characterized in that: The bottom of the control seat (21) is installed in the spray mounting groove (113). The two ends of the internal cavity of the control seat (21) are respectively provided with seat rotation holes (211). The two ends of the bottom of the outer side of the control seat (21) are respectively provided with first rotating platforms (212). The two ends of the bottom of the middle seat (22) are respectively provided with intermediate adjustment shafts (221). The two intermediate adjustment shafts (221) are respectively rotatably installed in the two seat rotation holes (211). The two ends of the top of the outer side of the middle seat (22) are respectively provided with second rotating platforms (222). The top of both sides of the middle seat (22) are respectively provided with third rotating platforms (223). The two ends of the top of the middle seat (22) are respectively provided with control mounting rotating platforms (224). The bottom ends of the two first control cylinders (24) are respectively rotatably installed in the two first rotating platforms (212). The top ends of the two first control cylinders (24) are respectively rotatably installed in the two second rotating platforms (222). The bottom ends of the two second control cylinders (25) are respectively rotatably installed in the two second rotating platforms (222). Installed in two third rotating platforms (223), the bottom ends of the control cylinder (23) are respectively provided with spray rotating shafts (231), and the top sides of the control cylinder (23) are respectively provided with spray rotating platforms (232). The two spray rotating shafts (231) are respectively rotatably installed in two control mounting rotating platforms (224), and the top ends of the two second control cylinders (25) are respectively rotatably installed in the two spray rotating platforms (232). The bottom of the spray cylinder (26) is installed on the top of the control cylinder (23), spraying... The bottom of the inner wall of the mist chamber (261) is provided with multiple mounting posts (262) at intervals along the circumferential direction. The top of the outer wall of the spray chamber (261) is provided with multiple mist outlet grooves (263) at intervals along the circumferential direction. Each mist outlet groove (263) is provided with a spray mesh (264). The outer wall of the conical guide plate (28) is installed at the inner end of the multiple mounting posts (262). The electric suction fan (29) is installed at the bottom of the conical guide plate (28). The spray element (27) is installed in the spray chamber (261).

4. The dust suppression device for green building projects according to claim 3, characterized in that: Each external spraying assembly (30) includes an external spraying frame (31), a rotation control element (32), and multiple external spraying elements (33). The external spraying frame (31) includes a liquid guiding installation pipe (311) and a spraying cross plate (312). The inner end of the liquid guiding installation pipe (311) is rotatably installed on the outside of the bent arm (133). The inner end of the inner wall of the liquid guiding installation pipe (311) is provided with a connecting protrusion ring, which is connected to the outer end of the outflow hollow pipe (135). The inner side of the spraying cross plate (312) is respectively installed on both ends of the liquid guiding installation pipe (311). The two ends of the rotation control element (32) are respectively installed on the outside of the two spraying cross plates (312). Multiple external spraying elements (33) are respectively installed in the rotation control element (32) at intervals along the length direction.

5. The dust suppression device for green building projects according to claim 4, characterized in that: The top surface of the liquid guide installation pipe (311) is provided with multiple liquid outlet connection pipes (313) at intervals along the length direction. The top of the outer side of the spraying horizontal plate (312) is provided with an adjustment groove (314), and the bottom of the outer side of the spraying horizontal plate (312) is provided with an installation hole (315).

6. The dust suppression device for green building projects according to claim 5, characterized in that: The rotation control element (32) includes a control mounting column (321), a rotation control cylinder (322), a rotation control slide bar (323), and a rack (324). The two ends of the control mounting column (321) are respectively installed in the mounting holes (315) of the two spraying horizontal plates (312). The inner end of the rotation control cylinder (322) is installed on the top of the outer side of one of the spraying horizontal plates (312). One end of the rotation control slide bar (323) is connected to the output shaft of the rotation control cylinder (322). The other end of the rotation control slide bar (323) is slidably installed in the control groove (314) of the other spraying horizontal plate (312). The inner side of the rotation control slide bar (323) is recessed with an arc-shaped sliding surface (325). The top of the rack (324) is installed on the outer side of the bottom surface of the rotation control slide bar (323).

7. The dust suppression device for green building projects according to claim 6, characterized in that: Each external spray element (33) includes an inlet pipe (331), a mounting block (332), a limiting rotating block (333), an external spray pipe (334), a spray regulating cylinder (335), a spray control pipe (336), and a spray head (337). The inner side of the mounting block (332) is installed on the bottom of the outer side of the inlet pipe (331). The top and bottom of the outer side of the mounting block (332) are respectively provided with mounting grooves (338). The two mounting grooves (338) respectively abut against and fit against the inner side of the regulating mounting column (321) and the arc-shaped sliding surface (325). Each mounting groove (338) is provided with a rotation preset groove (339) at both ends. An adjustment gear (341) is provided in the middle of the outer side of the mounting block (332). The adjustment gear (341) meshes with the spur rack (324) to limit the movement. The inner middle of the rotating block (333) is connected to the outer side of the adjusting gear (341). The inside of the liquid inlet pipe (331) is hollow and forms a liquid inlet cavity (342). A conical groove (343) is recessed in the middle of the liquid inlet cavity (342). The top of the outer spray pipe (334) is installed at the bottom of the liquid inlet pipe (331). The inner cavity of the outer spray pipe (334) is provided with multiple spiral protrusions (344) at intervals along the circumferential direction. The spray regulating cylinder (335) is installed at the top of the liquid inlet pipe (331). The spray control pipe (336) is slidably installed in the liquid inlet cavity (342) and multiple spiral protrusions (344). The top of the spray control pipe (336) is connected to the output shaft of the spray regulating cylinder (335). The top of the spray head (337) is rotatably installed at the bottom of the spray control pipe (336).

8. The dust suppression device for green building projects according to claim 7, characterized in that: A connecting pipe (340) is provided in the middle of the inner side of the inlet pipe (331). The top of the connecting pipe (340) is connected to the outlet connecting pipe (313) through a pipe. The inner cavity of the inlet pipe (331) is connected to the conical groove (343).

9. The dust suppression device for green building projects according to claim 8, characterized in that: A spray hole (345) is recessed in the middle of the bottom surface of the spray control pipe (336). An elastic inverted cone block (346) is protruding from the top of the outer wall of the spray control pipe (336). The outer wall of the elastic inverted cone block (346) abuts against the inner wall of the conical groove (343). An inclined connecting hole (347) is recessed on the inner side of the elastic inverted cone block (346). The inclined connecting hole (347) is connected to the spray hole (345). A plurality of deformable drain grooves (348) are recessed at intervals along the circumferential direction on the outer wall of the elastic inverted cone block (346). A plurality of triangular liquid guide plates (349) are recessed at intervals along the circumferential direction on the outer wall of the spray head (337).

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