Green building engineering dust falling device

Abstract

The invention relates to the technical field of dust falling devices, in particular to a green building engineering dust falling device. The green building engineering dust falling device comprises a mobile vehicle, a regulation and control main spraying assembly and two outer spraying assemblies. According to the invention, main dust-settling spray and auxiliary dust-settling spray can be formed, dust at different heights and in different spaces can be effectively treated, dead-corner-free dust settling is ensured, and the spray amount and the spray direction can be adjusted according to actual requirements so as to adapt to different construction environments and dust raising conditions, so that dust settling is ensured to be uniformly distributed in a room, and the working efficiency is improved. In addition, the height and the angle of a plurality of outer spraying elements can be adjusted, dust falling water drops can be formed and can make more effective contact with large-particle dust, the adsorption effect is enhanced, dust falling treatment is conducted on indoor extension space and low positions, especially secondary flying dust caused when the device moves, and the dust falling effect is improved. And the dust falling effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust reduction devices, and in particular provides a dust reduction device for green building projects. Background Art

[0002] Dust reduction equipment for construction is an environmental protection construction equipment designed to reduce dust pollution generated during construction and protect the health of workers and the surrounding environment. The indoor dust in a construction site is usually composed of a variety of materials such as cement, sand and gravel, wood chips, paint particles, etc. The chemical components and physical properties of the particles are different, and the particle sizes vary greatly, resulting in different sedimentation speeds and capture difficulties for different particles. At the same time, the indoor space is relatively enclosed, the air circulation is not smooth, and it is easy to accumulate in the air, resulting in a local concentration increase. The existing dust reduction equipment is mainly designed for outdoor environments and does not fully consider the particularity of the indoor space. The dust is unevenly distributed at low and high places, resulting in difficulty for the dust reduction equipment to cover all areas during dust reduction. Especially at low places and around the equipment, due to the poor ventilation environment in the construction site indoor area, the dust at low places is more likely to be suspended in the air, causing a relatively high local concentration. In addition, when the equipment itself and workers move, it is easy to stir up the dust accumulated on the indoor ground, causing the dust to rise. Moreover, the indoor dust in the construction site may carry static electricity, resulting in that during dust reduction, the dust particles are more likely to adhere to the surface of the dust reduction equipment in the indoor environment, and then form secondary dust emission when it moves, increasing the difficulty of dust reduction. Summary of the Invention

[0003] Based on this, it is necessary to provide a dust reduction device for green building projects to solve at least one technical problem in the background art.

[0004] A dust reduction device for green building projects, comprising a mobile vehicle, a main spray control component and two external spraying components. The mobile vehicle includes a vehicle frame, four electric drive wheels, an internal liquid storage tank and two spraying swing arm elements. The interior of the vehicle frame is hollow to form an installation cavity. Adjusting suspensions are respectively rotatably arranged at the four corners of the outer wall of the vehicle frame. The four electric drive wheels are respectively installed in the adjusting suspensions. A filling hole is concavely provided in the middle of the outer side of the vehicle frame. A spray installation groove is concavely provided on the inner side of the top surface of the vehicle frame. A signal receiver is arranged in the middle of the outer side of the top surface of the vehicle frame. The internal liquid storage tank is installed inside the installation cavity, and the internal cavity of the internal liquid storage tank is communicated with the spray installation groove. A filling connection hole is concavely provided in the middle of the outer side of the internal liquid storage tank. A filling pipe protrudes from the filling connection hole. The outer end of the filling pipe is installed in the filling hole. Spraying liquid outlet holes are respectively concavely provided at both ends of the outer top of the internal liquid storage tank. Rotating arm installation boxes are respectively arranged at both ends of the outer side of the top surface of the vehicle frame. The interior of the rotating arm installation box is hollow to form a hollow cavity. A rotating arm driving motor is arranged at the inner end of the hollow cavity. A rotating arm rotating motor is arranged at the outer end of the hollow cavity. A driving gear is arranged on the output shaft of the rotating arm driving motor. A rotating gear is arranged on the output shaft of the rotating arm rotating motor. A driving installation platform protrudes from the middle of the top surface of the hollow cavity. A hollow steel pipe is rotatably arranged inside the driving installation platform. A first gear is arranged at the inner end of the hollow steel pipe, and the first gear is meshed and connected with the driving gear. Connecting installation holes are respectively concavely provided at both ends of the inner bottom of the inner side of the rotating arm installation box. Connecting hoses are arranged in the connecting installation holes. The inner end of the connecting hose is rotatably connected with the inner end of the hollow steel pipe. The outer end of the connecting hose is connected with the spraying liquid outlet hole. A rotating installation hole is concavely provided in the middle of the outer end of the rotating arm installation box. A first bevel gear is arranged at the outer end of the hollow steel pipe, and the first bevel gear protrudes outside the rotating installation hole. The two spraying swing arm elements are respectively installed in the two rotating installation holes. The bottom of the main spray control component is installed in the spray installation groove. The inner ends of the two external spraying components are respectively rotatably installed in the two spraying swing arm elements.

[0005] As a further improvement of the present invention, each spraying swing arm element includes a sealed drum, an extension arm, a bent arm, an extended hollow rotating shaft, an outflow hollow pipe, and an outflow bevel gear. The middle part of the sealed drum is rotatably installed in the rotation installation hole. The inner end of the outer wall of the sealed drum is provided with a rotation adjustment gear, and the rotation adjustment gear is meshed and connected with the rotation gear. The inner end of the sealed drum is recessed with a sealed rotation hole, and the outer end of the hollow steel pipe is rotatably installed in the sealed rotation hole, so that the first bevel gear is rotatably arranged 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. The inner side of the bent arm is installed on the outer side of the extension arm, and the inner cavity of the extension arm communicates with the inner cavity of the sealed drum and the inner cavity of the bent arm. A flow-out installation rotating ring protrudes from the middle of the inner cavity of the bent arm. The two ends of the extended hollow rotating shaft are respectively rotatably installed at the two ends of the inner cavity of the extension arm. The inner end of the extended hollow rotating shaft is provided with a second bevel gear, and the second bevel gear is meshed and connected with the first bevel gear. The outer end of the extended hollow rotating shaft is provided with a third bevel gear. The middle part of the outflow hollow pipe is rotatably installed in the flow-out installation rotating ring. The outflow bevel gear is installed at the inner end of the outflow hollow pipe, and the outflow bevel gear is meshed and connected with the third bevel gear.

[0006] As a further improvement of the present invention, the main spray regulating assembly includes a regulating seat, an intermediate seat, a regulating cylinder, an electric suction fan, two first regulating cylinders, two second regulating cylinders, a spray cylinder, a conical guide plate, and a spray element. The bottom of the regulating seat is installed in the spray installation groove. The two ends of the inner cavity of the regulating seat are respectively recessed with seat body rotation holes. The two ends of the outer bottom of the regulating seat respectively protrude with a first rotating table. The two ends of the bottom of the intermediate seat respectively protrude with an intermediate adjustment rotating shaft. The two intermediate adjustment rotating shafts are respectively rotatably installed in the two seat body rotation holes. The two ends of the outer top of the intermediate seat respectively protrude with a second rotating table. The two sides of the top of the intermediate seat respectively protrude with a third rotating table. The two ends of the top of the intermediate seat respectively protrude with a regulating installation rotating table. The bottom ends of the two first regulating cylinders are respectively rotatably installed in the two first rotating tables. The top ends of the two first regulating cylinders are respectively rotatably installed in the two second rotating tables. The bottom ends of the two second regulating cylinders are respectively rotatably installed in the two third rotating tables. The two ends of the bottom of the regulating cylinder respectively protrude with spray rotating shafts. The two sides of the top of the regulating cylinder respectively protrude with spray rotating tables. The two spray rotating shafts are respectively rotatably installed in the two regulating installation rotating tables. The top ends of the two second regulating cylinders are respectively rotatably installed in the two spray rotating tables. The bottom of the spray cylinder is installed on the top of the regulating cylinder. The inside of the spray cylinder is hollow to form a spray cavity. A plurality of installation columns protrude from the bottom of the inner wall of the spray cavity at intervals along the circumferential direction. A plurality of mist outlet grooves are recessed from the top of the outer wall of the spray cavity at intervals along the circumferential direction. A spray mesh is arranged on each mist outlet groove. The outer wall of the conical guide plate is installed at the inner ends of the plurality of installation columns. The electric suction fan is installed at the bottom of the conical guide plate. The spray element is installed in the spray cavity.

[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 flow guiding disc. 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 disc. 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 at 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. A plurality of spiral flow increasing strips are convexly arranged at intervals along the circumferential direction on the outer wall of the rotating conical block. The outer wall of the elastic flow guiding disc is installed at the top of the inner wall of the spray chamber, and the middle of the bottom surface of the elastic flow guiding disc is connected to the top end of the regulating rod.

[0008] As a further improvement of the present invention, each outer spraying assembly includes an outer spraying frame, a rotating regulating element and a plurality of outer spraying elements. The outer 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 bent arm. A connecting convex ring is convexly arranged at the inner end of the inner wall of the liquid guiding installation pipe. The connecting convex ring is connected to the outer end of the outflow hollow pipe. The inner sides of the spraying cross plates are respectively installed at both ends of the liquid guiding installation pipe. The two ends of the rotating regulating element are respectively installed in the outsides of the two spraying cross plates. A plurality of outer spraying elements are respectively installed at intervals along the length direction in the rotating regulating element.

[0009] As a further improvement of the present invention, a plurality of liquid outlet connecting pipes are convexly arranged at intervals along the length direction on the top surface of the liquid guiding installation pipe. A regulating sliding groove is recessed at the top of the outside of the spraying cross plate, and an installation hole is recessed at the bottom of the outside of the spraying cross plate.

[0010] As a further improvement of the present invention, the rotating regulating element includes a regulating installation cross column, a rotating regulating cylinder, a rotating regulating sliding strip and a straight rack. The two ends of the regulating installation cross column are respectively installed in the installation holes of the two spraying cross plates. The inner end of the rotating regulating cylinder is installed at the top of the outside of one of the spraying cross plates. One end of the rotating regulating sliding strip is connected to the output shaft of the rotating regulating cylinder. The other end of the rotating regulating sliding strip is slidably installed in the regulating sliding groove of the other spraying cross plate. An arc-shaped sliding surface is recessed on the inner side of the rotating regulating sliding strip. The top of the straight rack is installed on the outer side of the bottom surface of the rotating regulating sliding strip.

[0011] As a further improvement of the present invention, each outer spraying element includes a liquid inlet pipe, a mounting block, a limiting rotating block, an outer spray pipe, a spraying adjustment cylinder, a spraying control pipe and a spray head. The inner side of the mounting block is installed at the outer bottom of the liquid inlet pipe. Installation grooves are respectively recessed at the outer top and bottom of the mounting block. The two installation grooves respectively abut and fit against the inner side and the arc-shaped sliding surface of the control installation cross-column. And rotation preset grooves are respectively recessed at both ends of each installation groove. A position adjustment gear is arranged in the middle of the outer side of the mounting block. The position adjustment gear is meshed and connected with the straight rack. The middle part of the inner side of the limiting rotating block is connected with the outer side of the position adjustment 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. And a plurality of spiral protrusions are convexly arranged at intervals along the circumferential direction of the inner cavity of the outer spray pipe. The spraying adjustment cylinder is installed at the top of the liquid inlet pipe. The spraying control pipe is slidably installed in the liquid inlet cavity and the plurality of spiral protrusions. And the top of the spraying control pipe is connected with the output shaft of the spraying adjustment cylinder. The top of the spray head is rotatably installed at the bottom of the spraying control pipe.

[0012] As a further improvement of the present invention, a connecting pipe is convexly arranged in the middle of the inner side of the liquid inlet pipe. The top of the connecting pipe is connected with the liquid outlet connecting pipe through a pipeline. And the inner cavity of the liquid inlet pipe is communicated with the conical groove.

[0013] As a further improvement of the present invention, a spraying hole is recessed in the middle of the bottom surface of the spraying control pipe. An elastic inverted cone block is convexly arranged at the top of the outer wall of the spraying control pipe. The outer wall of the elastic inverted cone block abuts against the inner wall of the conical groove. An inclined communication hole is recessed in the inner side of the elastic inverted cone block. The inclined communication hole is communicated with the spraying hole. A plurality of deformation liquid discharge grooves are recessed at intervals along the circumferential direction of the outer wall of the elastic inverted cone block. A plurality of triangular liquid guide pieces are recessed at intervals along the circumferential direction of the outer wall of the spray head.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention uses a mobile vehicle, a control main spraying assembly and two outer spraying assemblies to form a main dust suppression spray and a secondary dust suppression spray, effectively treating the dust at different heights and spaces, ensuring dust suppression without dead angles, and being able to adjust the spray amount and spraying direction according to actual needs to adapt to different construction environments and dust conditions, ensuring uniform distribution of dust suppression in the room and avoiding the situation of being too thick or too thin locally. In addition, the height and angle of a plurality of outer spraying elements can be adjusted, and the dust suppression water droplets can more effectively contact the large particle dust, enhancing the adsorption effect, suppressing the dust in the extended space and low places in the room, especially the secondary dust generated when the device moves, and further improving the dust suppression effect.

[0015] 2. The present invention can be adjusted according to different indoor environments and dust conditions, flexibly adjusting the spraying angle and height, and then specifically disposing of the dust raised at high and low places indoors to meet the requirements of different heights and spaces, enhancing the pertinence of dust reduction. At the same time, it can also achieve the uniformity of dust reduction and clean the dust that may adhere to the surface of the dust reduction equipment, reducing the situation of secondary dust raising. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0017] Figure 2 It is an internal schematic diagram of an embodiment of the present invention.

[0018] Figure 3 It is an internal schematic diagram of another embodiment of the present invention.

[0019] Figure 4 is Figure 2 the enlarged view of part A in

[0020] Figure 5 It is a three-dimensional schematic diagram of the main spray assembly for regulation in an embodiment of the present invention.

[0021] Figure 6 It is an internal schematic diagram of the main spray assembly for regulation in an embodiment of the present invention.

[0022] Figure 7 It is a three-dimensional schematic diagram of the external spray assembly in an embodiment of the present invention.

[0023] Figure 8 is Figure 7 the enlarged view of part B in

[0024] Figure 9 It is an internal schematic diagram of the external spray element in an embodiment of the present invention.

[0025] Figure 10 is Figure 9 the enlarged view of part C in

[0026] In the figure: 10. Mobile vehicle; 11. Frame; 12. Electric drive wheel; 13. Spraying rotating arm element; 14. Inner liquid storage tank; 110. Installation cavity; 111. Adjusting suspension; 112. Filling hole; 113. Spray installation groove; 114. Signal receiver; 141. Filling connection hole; 142. Filling pipe; 143. Spraying liquid outlet hole; 117. Rotating arm installation box; 118. Rotating arm driving motor; 119. Hollow cavity; 150. Driving gear; 151. Hollow steel pipe; 152. First gear; 153. Connecting installation hole; 154. Rotating installation hole; 155. First bevel gear; 131. Sealed rotating cylinder; 132. Extension arm; 133. Bent arm; 134. Extended hollow rotating shaft; 135. Outflow hollow pipe; 136. Outflow bevel gear; 137 Second bevel gear; 138. Third bevel gear; 20. Main spray regulating assembly; 21. Regulating seat; 22. Intermediate seat; 23. Regulating cylinder; 24. First regulating cylinder; 25. Second regulating cylinder; 26. Spray cylinder; 27. Spray element; 28. Conical guide plate; 29. Electric suction fan; 211. Seat body rotating hole; 212. First rotating table; 221. Intermediate regulating rotating shaft; 222. Second rotating table; 223. Third rotating table; 224. Regulating installation rotating table; 231. Spray rotating shaft; 232. Spray rotating table; 261. Spray cavity; 262. Installation column; 263. Mist outlet groove; 264. Spray mesh; 271. Double cone guide cylinder; 272. Regulating cylinder; 273. Regulating rod; 274. Spray rotating motor; 275. Rotating conical block; 276. Elastic flow guiding plate; 277. Spiral flow increasing strip; 30. Outer spraying assembly; 31. Outer spraying frame; 32. Rotating regulating element; 33. Outer spraying element; 311. Liquid guiding installation pipe; 312. Spraying cross plate; 313. Liquid outlet connecting pipe; 314. Regulating sliding groove; 315. Installation hole; 321. Regulating installation cross column; 322. Rotating regulating cylinder; 323. Rotating regulating sliding strip; 324. Straight rack; 325. Arc-shaped sliding surface; 331. Inlet pipe; 332. Installation block; 333. Limit rotating block; 334. Outer spray pipe; 335. Spraying adjusting cylinder; 336. Spraying regulating pipe; 337. Spraying head; 338. Installation groove; 339. Rotating preset groove; 341. Position adjusting gear; 342. Inlet liquid cavity; 343. Conical groove; 344. Spiral protrusion; 340. Connecting pipe; 345. Spraying hole; 346. Elastic inverted cone block; 347. Inclined connecting hole; 348. Deformed liquid discharge groove; 349. Triangular liquid guiding piece. Detailed implementation mode

[0027] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention can be understood more thoroughly and comprehensively.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figures 1 to 10, a dust reduction device for green building projects, comprising a mobile vehicle 10, a main spray control component 20 and two external spraying components 30. The mobile vehicle 10 includes a vehicle frame 11, four electric drive wheels 12, an internal liquid storage tank 14 and two spraying swing arm elements 13. The interior of the vehicle frame 11 is hollow to form an installation cavity 110. At the four corners of the outer wall of the vehicle frame 11, adjusting suspensions 111 are respectively rotatably arranged. The four electric drive wheels 12 are respectively installed in the adjusting suspensions 111. A filling hole 112 is concavely provided in the middle of the outer side of the vehicle frame 11. A spray installation groove 113 is concavely provided in the inner side of the top surface of the vehicle frame 11. A signal receiver 114 is provided in the middle of the outer side of the top surface of the vehicle frame 11. The internal liquid storage tank 14 is installed inside the installation cavity 110, and the internal cavity of the internal liquid storage tank 14 is communicated with the spray installation groove 113. A filling connection hole 141 is concavely provided in the middle of the outer side of the internal liquid storage tank 14. A filling pipe 142 protrudes from the filling connection hole 141. The outer end of the filling pipe 142 is installed in the filling hole 112. At both ends of the top of the outer side of the internal liquid storage tank 14, spraying liquid outlet holes 143 are respectively concavely provided. At both ends of the outer side of the top surface of the vehicle frame 11, swing arm installation boxes 117 are respectively provided. The interior of the swing arm installation box 117 is hollow to form a hollow cavity 119. A swing arm drive motor 118 is provided at the inner end of the hollow cavity 119, and a swing 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 swing arm drive motor 118, and a rotation gear is provided on the output shaft of the swing arm rotation motor. A drive installation platform protrudes from the middle of the top surface of the hollow cavity 119. A hollow steel pipe 151 is rotatably arranged inside the drive installation platform. A first gear 152 is provided at the inner end of the hollow steel pipe 151, and the first gear 152 is meshed and connected with the drive gear 150. At both ends of the inner bottom of the swing arm installation box 117, connecting installation holes 153 are respectively concavely provided. A connecting hose is provided in the connecting installation hole 153. The inner end of the connecting hose is rotatably connected with the inner end of the hollow steel pipe 151, and the outer end of the connecting hose is connected with the spraying liquid outlet hole 143. A rotation installation hole 154 is concavely provided in the middle of the outer end of the swing arm installation 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 outside the rotation installation hole 154. The two spraying swing arm elements 13 are respectively installed in the two rotation installation holes 154. The bottom of the main spray control component 20 is installed in the spray installation groove 113. The inner ends of the two external spraying components 30 are respectively rotatably installed in the two spraying swing arm elements 13.

[0031] Each spraying swivel arm element 13 includes a sealed drum 131, an extension arm 132, a bent arm 133, an extended hollow rotating shaft 134, an outflow hollow tube 135 and an outflow bevel gear 136. The middle part of the sealed drum 131 is rotatably installed in the rotary installation hole 154. The inner end of the outer wall of the sealed drum 131 is provided with a rotary adjustment gear, and the rotary adjustment gear is meshed and connected with the rotary gear. The inner end of the sealed drum 131 is recessed with a sealed rotary hole, and the outer end of the hollow steel pipe 151 is rotatably installed in the sealed rotary hole, so that the first bevel gear 155 is rotatably arranged in the inner cavity of the sealed drum 131. The inner side of the extension arm 132 is installed in the outer end of the sealed drum 131. The inner side of the bent arm 133 is installed on the outer side of the extension arm 132, and the inner cavity of the extension arm 132 communicates with the inner cavity of the sealed drum 131 and the inner cavity of the bent arm 133. The middle part of the inner cavity of the bent arm 133 is convexly provided with an outflow installation rotating ring. The two ends of the extended hollow rotating shaft 134 are respectively rotatably installed at the two ends of the inner cavity of the extension arm 132. The inner end of the extended hollow rotating shaft 134 is provided with a second bevel gear 137, and the second bevel gear 137 is meshed and connected with the first bevel gear 155. The outer end of the extended hollow rotating shaft 134 is provided with a third bevel gear 138. The middle part of the outflow hollow tube 135 is rotatably installed in the outflow installation rotating ring. The outflow bevel gear 136 is installed at the inner end of the outflow hollow tube 135, and the outflow bevel gear 136 is meshed and connected with the third bevel gear 138.

[0032] 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 installation groove 113. At both ends of the inner cavity of the control base 21, seat body rotation holes 211 are respectively recessed. At both ends of the outer bottom of the control base 21, first rotating platforms 212 are respectively protruded. At both ends of the bottom of the intermediate base 22, intermediate adjustment rotating shafts 221 are respectively protruded. The two intermediate adjustment rotating shafts 221 are respectively rotatably installed in the two seat body rotation holes 211. At both ends of the outer top of the intermediate base 22, second rotating platforms 222 are respectively protruded. At both sides of the top of the intermediate base 22, third rotating platforms 223 are respectively protruded. At both ends of the top of the intermediate base 22, control installation rotating platforms 224 are respectively protruded. 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 third rotating platforms 223. At both ends of the bottom of the control cylinder 23, spray rotating shafts 231 are respectively protruded. At both sides of the top of the control cylinder 23, spray rotating platforms 232 are respectively protruded. The two spray rotating shafts 231 are respectively rotatably installed in the two control installation rotating platforms 224. 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. The interior of the spray cylinder 26 is hollow to form a spray cavity 261. Along the circumferential direction at the bottom of the inner wall of the spray cavity 261, a plurality of installation posts 262 are spaced and protruded. Along the circumferential direction at the top of the outer wall of the spray cavity 261, a plurality of fog outlet grooves 263 are spaced and recessed. A spray mesh sheet 264 is arranged on each fog outlet groove 263. The outer wall of the conical guide plate 28 is installed at the inner ends of the plurality of installation 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 cavity 261.

[0033] The spray element 27 includes a double-cone guide cylinder 271, a control cylinder 272, a control rod 273, a spray rotation motor 274, a rotating conical block 275, and an elastic diversion plate 276. The double-cone guide cylinder 271 is installed in the middle of the spray cavity 261. The bottom of the control cylinder 272 is installed in the middle of the top surface of the conical guide plate 28. The bottom of the control rod 273 is installed in the output shaft of the control cylinder 272. The spray rotation motor 274 is installed in the middle of the control rod 273. The bottom of the rotating conical block 275 is recessed with a rotation through hole. The rotating conical block 275 is rotatably installed at the bottom of the control rod 273 through the rotation through hole, and the rotating conical block 275 is connected to the output end of the spray rotation motor 274. Along the circumferential direction on the outer wall of the rotating conical block 275, a plurality of spiral flow increasing strips 277 are spaced and protruded. The outer wall of the elastic diversion plate 276 is installed at the top of the inner wall of the spray cavity 261, and the middle of the bottom surface of the elastic diversion plate 276 is connected to the top end of the control rod 273.

[0034] Each outer spraying component 30 includes an outer spraying frame 31, a rotation control element 32 and a plurality of outer spraying elements 33. The outer 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 outer side of the bent arm 133. A connecting convex ring is protruded at the inner end of the inner wall of the liquid guiding installation pipe 311, and the connecting convex ring is connected to the outer end of the outflow hollow pipe 135. The inner sides of the spraying cross plates 312 are respectively installed at both ends of the liquid guiding installation pipe 311. Both ends of the rotation control element 32 are respectively installed in the outer sides of the two spraying cross plates 312, and a plurality of outer spraying elements 33 are respectively installed in the rotation control element 32 at intervals along the length direction.

[0035] A plurality of liquid outlet connecting pipes 313 are protruded at intervals along the length direction on the top surface of the liquid guiding installation pipe 311. A control sliding groove 314 is recessed at the top of the outer side of the spraying cross plate 312, and an installation hole 315 is recessed at the bottom of the outer side of the spraying cross plate 312.

[0036] The rotation control element 32 includes a control installation cross column 321, a rotation control cylinder 322, a rotation control sliding bar 323 and a straight rack 324. Both ends of the control installation cross column 321 are respectively installed in the installation holes 315 of the two spraying cross plates 312. The inner end of the rotation control cylinder 322 is installed at the top of the outer side of one of the spraying cross plates 312. One end of the rotation control sliding bar 323 is connected to the output shaft of the rotation control cylinder 322. The other end of the rotation control sliding bar 323 is slidably installed in the control sliding groove 314 of the other spraying cross plate 312. An arc-shaped sliding surface 325 is recessed on the inner side of the rotation control sliding bar 323, and the top of the straight rack 324 is installed on the outer side of the bottom surface of the rotation control sliding bar 323.

[0037] Each outer spraying element 33 includes a liquid inlet pipe 331, a mounting block 332, a limiting rotating block 333, an outer spray pipe 334, a spraying adjustment cylinder 335, a spraying control pipe 336, and a spray head 337. The inner side of the mounting block 332 is installed on the outer bottom of the liquid inlet pipe 331. The outer top and bottom of the mounting block 332 are respectively recessed with mounting grooves 338. The two mounting grooves 338 respectively abut and fit on the inner side of the control mounting cross-column 321 and the arc-shaped sliding surface 325. And both ends of each mounting groove 338 are respectively recessed with rotation preset grooves 339. The middle part of the outer side of the mounting block 332 is provided with an adjustment gear 341. The adjustment gear 341 is meshed and connected with the straight rack 324. The middle part of the inner side of the limiting rotating block 333 is connected with the outer side of the adjustment 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. And a plurality of spiral protrusions 344 are convexly provided at intervals along the circumferential direction in the inner cavity of the outer spray pipe 334. The spraying adjustment cylinder 335 is installed on the top of the liquid inlet pipe 331. The spraying control pipe 336 is slidably installed in the liquid inlet cavity 342 and the plurality of spiral protrusions 344. And the top of the spraying control pipe 336 is connected with the output shaft of the spraying adjustment cylinder 335. The top of the spray head 337 is rotatably installed at the bottom of the spraying control pipe 336.

[0038] A connecting pipe 340 is convexly provided in the middle of the inner side of the liquid inlet pipe 331. The top of the connecting pipe 340 is connected with the liquid outlet connecting pipe 313 through a pipeline. And the inner cavity of the liquid inlet pipe 331 is communicated with the conical groove 343.

[0039] A spraying hole 345 is recessed in the middle of the bottom surface of the spraying control pipe 336. An elastic inverted cone block 346 is convexly provided at the top of the outer wall of the spraying 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 communication hole 347 is recessed in the inner side of the elastic inverted cone block 346. The inclined communication hole 347 is communicated with the spraying hole 345. A plurality of deformation liquid discharge 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 guiding pieces 349 are recessed at intervals along the circumferential direction on the outer wall of the spray head 337.

[0040] For example, in one embodiment: The outer end of the filling pipe 142 is connected to an external water pump through a hose. An atomizer is provided in the inner cavity of the inner liquid storage tank 14. The signal receiver 114 is used to receive the telecommunication signal of an external remote control device.

[0041] For example, in one embodiment: When mobile dust suppression is required indoors, four electric drive wheels 12 are started to drive the device to move. At the same time, an external water pump and atomizer will be started synchronously, and then dust suppression water flow will be synchronously conveyed to two external spraying assemblies 30, and a main dust suppression spray will be output to the main spray regulating assembly 20. The electric suction fan 29 will be started, and then the main dust suppression spray will be suctioned and sent to the conical guide plate 28 and the spray element 27. The main dust suppression spray will be diverted and dispersed by 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 started, and then the rotating conical block 275 will be driven to rotate, and then a plurality of spiral flow increasing bars 277 will rotate accordingly, so as to accelerate the outflow of the main dust suppression spray from the double-cone guide cylinder 271 and impact the bottom surface of the elastic guide plate 276. Subsequently, the indoor space will be sprayed and dust-suppressed through a plurality of spray mesh sheets 264. At the same time, the dust suppression water flow will flow into the hollow steel pipe 151 through the connecting hose, and then sequentially flow into the inner cavity of the sealing rotating cylinder 131, the extending hollow rotating shaft 134, the inner cavity of the bent arm 133, and the outflow hollow pipe 135 and into the liquid guiding installation pipe 311. Then, it will flow into the inner cavities of a plurality of liquid inlet pipes 331 through a plurality of liquid outlet connecting pipes 313 and a plurality of pipelines. Since the elastic inverted cone block 346 has elasticity, and a plurality of deformed liquid discharge grooves 348 are recessed at intervals along the circumferential direction on the outer wall of the elastic inverted cone block 346, when the spraying regulating pipe 336 and the elastic inverted cone block 346 are at the lowest point, the bottom of the inner wall of the conical groove 343 will squeeze the elastic inverted cone block 346, and then the elastic inverted cone block 346 will deform, and the deformed liquid discharge grooves 348 will be squeezed and collapse and deform, so that the deformed liquid discharge grooves 348 are closed, so that the dust suppression water flow can only enter the spray head 337 through the inclined communication holes 347 and the spraying holes 345, and form a secondary dust suppression spray when sprayed out from the spray head 337 to perform dust suppression treatment on the extended space and low places indoors, especially the dust generated when the device moves.

[0042] For example, in one embodiment: When the dust particles are relatively large or the dust is electrostatically charged, resulting in a relatively high dust concentration around the device or even adhering to the surface of the dust reduction 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 conical block 275 to move accordingly. As a result, the distance between the rotating conical block 275 and the double-cone guide tube 271 increases, causing the velocity of the main dust reduction spray flowing out of the double-cone guide tube 271 to decrease. Moreover, since the middle part of the bottom surface of the elastic deflector disk 276 is connected to the top end of the regulating rod 273, the elastic deflector disk 276 deforms, becoming an inverted cone shape, thereby guiding the main dust reduction spray. Under its guidance, the main dust reduction spray is ejected obliquely outwards, pushing the dust away from the equipment while reducing dust. At the same time, the spraying adjustment cylinder 335 will be activated, causing the output shaft of the spraying adjustment cylinder 335 to retract, thereby driving the spraying control pipe 336 and the spraying head 337 to slide upwards, causing the elastic inverted cone block 346 to move accordingly, enabling the multiple deformed liquid discharge grooves 348 to return to their original state. As a result, part of the dust reduction water flow flowing out from the conical groove 343 will flow out through the multiple deformed liquid discharge grooves 348 into the inner part of the outer spray pipe 334 and be impacted by the multiple spiral protrusions 344 towards the multiple triangular liquid guide vanes 349 on the outer wall of the spraying head 337, causing the spraying head 337 to rotate, thereby forming dust reduction water droplets and spreading outwards, reducing and adsorbing large particle dust, and causing the dust reduction water droplets to fall on the outer surface of the device to clean the dust that may adhere to the surface of the dust reduction equipment; in addition, when the spraying head 337 rotates, it will also increase the uniformity of the diffusion of the secondary dust reduction spray, ensuring the uniformity of dust reduction.

[0043] For example, in one embodiment: When it is necessary to reduce dust on high places or the ceiling indoors, the rotating arm rotation motor will be activated, causing the rotating gear to rotate, thereby driving the sealed rotating cylinder 131 to rotate, causing the extension arm 132, the bent arm 133, and the outer spraying assembly 30 to rotate and move upwards. At the same time, the rotating arm driving motor 118 will be synchronously activated, driving the driving gear 150 to rotate, thereby driving the first gear 152 and the hollow steel pipe 151 to rotate accordingly, causing the first bevel gear 155 to rotate, driving the second bevel gear 137, the extended hollow rotating shaft 134, and the third bevel gear 138 to rotate accordingly, causing the outflow bevel gear 136 and the outflow hollow pipe 135 to rotate accordingly, causing the outer spraying assembly 30 to rotate, causing the multiple spray heads and the multiple outer spray pipes 334 to rotate, and causing the secondary dust reduction spray ejected by them to perform dust reduction treatment on high places or the ceiling indoors.

[0044] When it is necessary to adjust the spraying angle of the spray head 337, start the rotation control cylinder 322, which drives the rotation control slider 323 to move accordingly, causing the straight rack 324 to move, making the positioning gear 341 rotate, and then making the outer spraying element 33 rotate, thereby adjusting the spraying angle of the spray head 337.

[0045] Installation process: Install the four electric drive wheels 12 in the adjustment suspension 111 respectively. Install the inner liquid storage tank 14 inside the installation cavity 110, and the inner cavity of the inner liquid storage tank 14 is communicated with the spray installation groove 113. The outer end of the filling pipe 142 is installed in the filling hole 112. Install the two spraying swing arm elements 13 in the two rotating installation holes 154 respectively. Rotationally install the middle part of the sealing rotating cylinder 131 in the rotating installation hole 154, and the rotating adjustment gear is meshed and connected 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 arranged in the inner cavity of the sealing rotating cylinder 131. Install the inner side of the extension arm 132 at the outer end of the sealing rotating cylinder 131. Install the inner side of the bent arm 133 on the outer side of the extension arm 132, and the inner cavity of the extension arm 132 is communicated with the inner cavity of the sealing rotating cylinder 131 and the inner cavity of the bent arm 133. Rotationally install both ends of the extended hollow rotating shaft 134 at both ends of the inner cavity of the extension arm 132. The second bevel gear 137 is meshed and connected with the first bevel gear 155. Rotationally install the middle part of the outflow hollow pipe 135 in the outflow installation rotating ring. Install the outflow bevel gear 136 at the inner end of the outflow hollow pipe 135, and the outflow bevel gear 136 is meshed and connected with the third bevel gear 138. Install the bottom of the regulation seat 21 in the spray installation groove 113. Rotationally install the two intermediate adjustment rotating shafts 221 in the two seat body rotating holes 211 respectively. Rotationally install the bottom ends of the two first regulation cylinders 24 in the two first rotating platforms 212 respectively. Rotationally install the top ends of the two first regulation cylinders 24 in the two second rotating platforms 222 respectively. Rotationally install the bottom ends of the two second regulation cylinders 25 in the two third rotating platforms 223 respectively. Rotationally install the two spray rotating shafts 231 in the two regulation installation rotating platforms 224 respectively. Rotationally install the top ends of the two second regulation cylinders 25 in the two spray rotating platforms 232 respectively. Install the bottom of the spray cylinder 26 on the top of the regulation cylinder 23. Install the outer wall of the conical guide plate 28 at the inner ends of the plurality of installation columns 262. Install the electric suction fan 29 at the bottom of the conical guide plate 28. Install the double-cone guide cylinder 271 in the middle of the spray cavity 261. Install the bottom of the regulation cylinder 272 in the middle of the top surface of the conical guide plate 28. Install the bottom of the regulation rod 273 in the output shaft of the regulation cylinder 272. Install the spray rotation motor 274 in the middle of the regulation rod 273. Rotationally install the rotating conical block 275 through the rotating through hole at the bottom of the regulation rod 273, and the rotating conical block 275 is connected with the output end of the spray rotation motor 274. Install the outer wall of the elastic guide disk 276 at the top of the inner wall of the spray cavity 261, and the middle part of the bottom surface of the elastic guide disk 276 is connected with the top end of the regulation rod 273. Rotationally install the inner end of the liquid guide installation pipe 311 on the outer side of the bent arm 133, and the connecting convex ring is connected with the outer end of the outflow hollow pipe 135. Install the inner sides of the spraying cross plates 312 at both ends of the liquid guide installation pipe 311 respectively. Install both ends of the regulation installation cross column 321 in the installation holes 315 of the two spraying cross plates 312 respectively. Install the inner end of the rotation regulation cylinder 322 on the top of the outer side of one of the spraying cross plates 312.One end of the rotation control slider 323 is connected to the output shaft of the rotation control cylinder 322. The other end of the rotation control slider 323 is slidably installed in the control chute 314 of another spraying cross plate 312. The top of the straight rack 324 is installed on the outer side of the bottom surface of the rotation control slider 323. The inner side of the mounting block 332 is installed on the outer bottom of the liquid inlet pipe 331. The two mounting grooves 338 respectively abut and fit on the inner side of the control mounting cross column 321 and the arc-shaped sliding surface 325. The middle part of the inner side of the limit rotating block 333 is connected to the outer side of the position adjusting gear 341. The top of the outer spray pipe 334 is installed at the bottom of the liquid inlet pipe 331. The spraying adjustment cylinder 335 is installed on the top of the liquid inlet pipe 331. The spraying control pipe 336 is slidably installed in the liquid inlet cavity 342 and a plurality of spiral protrusions 344, and the top of the spraying control pipe 336 is connected to the output shaft of the spraying adjustment cylinder 335. The top of the spray head 337 is rotatably installed at the bottom of the spraying control pipe 336.,

[0046] The present invention can achieve: 1. The present invention uses the mobile vehicle 10, the control main spray assembly 20 and the two outer spraying assemblies 30 to form the main dust suppression spray and the secondary dust suppression spray, effectively treat the dust at different heights and spaces, ensure dust suppression without dead angles, and can adjust the spray volume and spraying direction according to actual needs to adapt to different construction environments and dust conditions, ensure uniform distribution of dust suppression in the room, and avoid the situation of being too thick or too thin locally. In addition, the height and angle of a plurality of outer spraying elements 33 can be adjusted, and the dust suppression water droplets can more effectively contact the large particle dust, enhance the adsorption effect, and perform dust suppression treatment on the extended space and low places in the room, especially the secondary dust generated when the device moves, further improving the dust suppression effect.

[0047] 2. The present invention can be adjusted according to different indoor environments and dust conditions, flexibly adjust the spraying angle and height, and then specifically perform dust suppression treatment on the dust generated at high and low places in the room, adapt to the needs of different heights and spaces, enhance the pertinence of dust suppression. At the same time, it can also achieve the uniformity of dust suppression and clean the dust that may adhere to the surface of the dust suppression equipment, reducing the situation of secondary dust.

[0048] The above-described embodiments only represent several embodiments of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A dust reduction device for green building projects, characterized in that: It includes a mobile vehicle (10), a main spray control component (20) and two outer spraying components (30). The mobile vehicle (10) includes a vehicle frame (11), four electric drive wheels (12), an internal liquid storage tank (14) and two spraying swing arm elements (13). The interior of the vehicle frame (11) is hollow to form an installation cavity (110). At the four corners of the outer wall of the vehicle frame (11), adjusting suspensions (111) are respectively rotatably provided. The four electric drive wheels (12) are respectively installed in the adjusting suspensions (111). A filling hole (112) is concavely provided in the middle of the outer side of the vehicle frame (11). A spray installation groove (113) is concavely provided on the inner side of the top surface of the vehicle frame (11). A signal receiver (114) is provided in the middle of the outer side of the top surface of the vehicle frame (11). The internal liquid storage tank (14) is installed on the inner side of the installation cavity (110), and the internal cavity of the internal liquid storage tank (14) is communicated with the spray installation groove (113). A filling connection hole (141) is concavely provided in the middle of the outer side of the internal liquid storage tank (14). A filling pipe (142) protrudes from the filling connection hole (141). The outer end of the filling pipe (142) is installed in the filling hole (112). At both ends of the top of the outer side of the internal liquid storage tank (14), spraying liquid outlet holes (143) are respectively concavely provided. At both ends of the outer side of the top surface of the vehicle frame (11), swing arm installation boxes (117) are respectively provided. The interior of the swing arm installation box (117) is hollow to form a hollow cavity (119). A swing arm drive motor (118) is provided at the inner end of the hollow cavity (119). A swing 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 swing arm drive motor (118). A rotation gear is provided on the output shaft of the swing arm rotation motor. A drive installation platform protrudes from the middle of the top surface of the hollow cavity (119). A hollow steel pipe (151) is rotatably provided in the drive installation platform. A first gear (152) is provided at the inner end of the hollow steel pipe (151), and the first gear (152) is meshed and connected with the drive gear (150). At both ends of the inner bottom of the swing arm installation box (117), connection installation holes (153) are respectively concavely provided. A connection hose is provided in the connection installation hole (153). The inner end of the connection hose is rotatably connected with the inner end of the hollow steel pipe (151). The outer end of the connection hose is connected with the spraying liquid outlet hole (143). A rotation installation hole (154) is concavely provided in the middle of the outer end of the swing arm installation 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 outside the rotation installation hole (154). The two spraying swing arm elements (13) are respectively installed in the two rotation installation holes (154). The bottom of the main spray control component (20) is installed in the spray installation groove (113). The inner ends of the two outer spraying components (30) are respectively rotatably installed in the two spraying swing arm elements (13).

2. The dust reduction device for green building projects according to claim 1, characterized in that: Each spraying swivel arm element (13) includes a sealed drum (131), an extension arm (132), a bent arm (133), an extended hollow rotating shaft (134), an outflow hollow pipe (135) and an outflow bevel gear (136). The middle part of the sealed drum (131) is rotatably installed in the rotation installation hole (154). An inner end of the outer wall of the sealed drum (131) is provided with a rotation adjustment gear, and the rotation adjustment gear is meshed and connected with the rotation gear. An inner end of the sealed drum (131) is recessed with a sealed rotation hole, and an outer end of the hollow steel pipe (151) is rotatably installed in the sealed rotation hole, so that the first bevel gear (155) is rotatably arranged in the inner cavity of the sealed drum (131). The inner side of the extension arm (132) is installed in the outer end of the sealed drum (131). The inner side of the bent arm (133) is installed on the outer side of the extension arm (132), and the inner cavity of the extension arm (132) is communicated with the inner cavity of the sealed drum (131) and the inner cavity of the bent arm (133). A central part of the inner cavity of the bent arm (133) is convexly provided with an outflow installation rotating ring. Two ends of the extended hollow rotating shaft (134) are respectively rotatably installed at two ends of the inner cavity of the extension arm (132). A second bevel gear (137) is arranged at an inner end of the extended hollow rotating shaft (134), and the second bevel gear (137) is meshed and connected with the first bevel gear (155). A third bevel gear (138) is arranged at an outer end of the extended hollow rotating shaft (134). The middle part of the outflow hollow pipe (135) is rotatably installed in the outflow installation rotating ring. The outflow bevel gear (136) is installed at an inner end of the outflow hollow pipe (135), and the outflow bevel gear (136) is meshed and connected with the third bevel gear (138).

3. The dust reduction device for green building engineering according to claim 2, characterized in that: The regulating main spray assembly (20) includes a regulating base (21), an intermediate base (22), a regulating cylinder (23), an electric suction fan (29), two first regulating cylinders (24), two second regulating cylinders (25), a spray cylinder (26), a conical guide disc (28) and a spray element (27). The bottom of the regulating base (21) is installed in the spray installation groove (113). At both ends of the inner cavity of the regulating base (21), seat body rotation holes (211) are respectively recessed. At both ends of the outer bottom of the regulating base (21), first rotating platforms (212) are respectively protruded. At both ends of the bottom of the intermediate base (22), intermediate adjusting rotating shafts (221) are respectively protruded. The two intermediate adjusting rotating shafts (221) are respectively rotatably installed in the two seat body rotation holes (211). At both ends of the outer top of the intermediate base (22), second rotating platforms (222) are respectively protruded. At both tops of both sides of the intermediate base (22), third rotating platforms (223) are respectively protruded. At both ends of the top of the intermediate base (22), regulating installation rotating platforms (224) are respectively protruded. The bottom ends of the two first regulating cylinders (24) are respectively rotatably installed in the two first rotating platforms (212). The top ends of the two first regulating cylinders (24) are respectively rotatably installed in the two second rotating platforms (222). The bottom ends of the two second regulating cylinders (25) are respectively rotatably installed in the two third rotating platforms (223). At both ends of the bottom of the regulating cylinder (23), spray rotating shafts (231) are respectively protruded. At both sides of the top of the regulating cylinder (23), spray rotating platforms (232) are respectively protruded. The two spray rotating shafts (231) are respectively rotatably installed in the two regulating installation rotating platforms (224). The top ends of the two second regulating 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 regulating cylinder (23). The interior of the spray cylinder (26) is hollow to form a spray cavity (261). Along the circumferential direction at the bottom of the inner wall of the spray cavity (261), a plurality of installation columns (262) are respectively protruded at intervals. Along the circumferential direction at the top of the outer wall of the spray cavity (261), a plurality of fog outlet grooves (263) are respectively recessed at intervals. A spray mesh sheet (264) is arranged on each fog outlet groove (263). The outer wall of the conical guide disc (28) is installed at the inner ends of the plurality of installation columns (262). The electric suction fan (29) is installed at the bottom of the conical guide disc (28). The spray element (27) is installed in the spray cavity (261).

4. The dust reduction device for green building projects according to claim 3, characterized in that: 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 conical block (275) and an elastic flow guide disc (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 conical guide disc (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). A rotation through hole is recessed at the bottom of the rotating conical block (275). The rotating conical block (275) is rotationally installed at the bottom of the regulating rod (273) through the rotation through hole, and the rotating conical block (275) is connected to the output end of the spray rotation motor (274). A plurality of spiral flow increasing strips (277) are convexly provided at intervals along the circumferential direction on the outer wall of the rotating conical block (275). The outer wall of the elastic flow guide disc (276) is installed at the top of the inner wall of the spray chamber (261), and the middle of the bottom surface of the elastic flow guide disc (276) is connected to the top end of the regulating rod (273).

5. The dust reduction device for green building projects according to claim 4, characterized in that: Each outer spraying assembly (30) includes an outer spraying frame (31), a rotating regulating element (32) and a plurality of outer spraying elements (33). The outer 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 rotationally installed on the outer side of the bent arm (133). A connecting convex ring is convexly provided at the inner end of the inner wall of the liquid guiding installation pipe (311), and the connecting convex ring is connected to the outer end of the outflow hollow pipe (135). The inner sides of the spraying cross plates (312) are respectively installed at both ends of the liquid guiding installation pipe (311). The two ends of the rotating regulating element (32) are respectively installed in the outer sides of the two spraying cross plates (312). A plurality of outer spraying elements (33) are respectively installed at intervals along the length direction in the rotating regulating element (32).

6. The dust reduction device for green building projects according to claim 5, characterized in that: A plurality of liquid outlet connecting pipes (313) are convexly provided at intervals along the length direction on the top surface of the liquid guiding installation pipe (311). A regulating sliding groove (314) is recessed at the top of the outer side of the spraying cross plate (312), and a mounting hole (315) is recessed at the bottom of the outer side of the spraying cross plate (312).

7. The dust reduction device for green building projects according to claim 6, wherein: The rotating regulating element (32) includes a regulating installation cross column (321), a rotating regulating cylinder (322), a rotating regulating slide bar (323) and a straight rack (324). The two ends of the regulating installation cross column (321) are respectively installed in the mounting holes (315) of the two spraying cross plates (312). The inner end of the rotating regulating cylinder (322) is installed at the top of the outer side of one of the spraying cross plates (312). One end of the rotating regulating slide bar (323) is connected to the output shaft of the rotating regulating cylinder (322). The other end of the rotating regulating slide bar (323) is slidably installed in the regulating sliding groove (314) of the other spraying cross plate (312). An arc-shaped sliding surface (325) is recessed on the inner side of the rotating regulating slide bar (323). The top of the straight rack (324) is installed on the outer side of the bottom surface of the rotating regulating slide bar (323).

8. The dust reduction device for green building projects according to claim 7, characterized in that: Each external spraying element (33) includes a liquid inlet pipe (331), a mounting block (332), a limiting rotating block (333), an external spray pipe (334), a spraying adjustment cylinder (335), a spraying control pipe (336), and a spray head (337). The inner side of the mounting block (332) is mounted on the outer bottom of the liquid inlet pipe (331). Installation grooves (338) are respectively recessed in the outer top and bottom of the mounting block (332). The two installation grooves (338) are respectively abutted and fitted on the inner side of the control installation cross column (321) and the arc-shaped sliding surface (325). Rotation preset grooves (339) are respectively recessed at both ends of each installation groove (338). A position adjustment gear (341) is arranged in the middle of the outer side of the mounting block (332). The position adjustment gear (341) is meshed and connected with the straight rack (324). The middle part of the inner side of the limiting rotating block (333) is connected to the outer side of the position adjustment 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 external spray pipe (334) is mounted on the bottom of the liquid inlet pipe (331). Multiple spiral protrusions (344) are convexly arranged at intervals along the circumferential direction of the inner cavity of the external spray pipe (334). The spraying adjustment cylinder (335) is mounted on the top of the liquid inlet pipe (331). The spraying control pipe (336) is slidably mounted in the liquid inlet cavity (342) and the multiple spiral protrusions (344). The top of the spraying control pipe (336) is connected to the output shaft of the spraying adjustment cylinder (335). The top of the spray head (337) is rotatably mounted on the bottom of the spraying control pipe (336).

9. The dust reduction device for green building projects according to claim 8, wherein: A connecting pipe (340) is convexly arranged in the middle of the inner side of the liquid inlet pipe (331). The top of the connecting pipe (340) is connected to the liquid outlet connecting pipe (313) through a pipeline. The inner cavity of the liquid inlet pipe (331) is communicated with the conical groove (343).

10. The dust reduction device for green building projects according to claim 9, characterized in that: A spraying hole (345) is recessed in the middle of the bottom surface of the spraying control pipe (336). An elastic inverted cone block (346) is convexly arranged at the top of the outer wall of the spraying 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 communication hole (347) is recessed in the inner side of the elastic inverted cone block (346). The inclined communication hole (347) is communicated with the spraying hole (345). Multiple deformation liquid discharge grooves (348) are recessed at intervals along the circumferential direction of the outer wall of the elastic inverted cone block (346). Multiple triangular liquid guiding pieces (349) are recessed at intervals along the circumferential direction of the outer wall of the spray head (337).

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