Building engineering construction site dust suppression device

Abstract

The invention belongs to the technical field of dust suppression devices, and particularly provides a building engineering construction site dust suppression device which comprises a base, a water tank is arranged on the base, a power frame assembly is arranged in the center of the upper portion of the base, a dust collection assembly is arranged on the power frame assembly, and the outer side of the power frame assembly is sleeved with an adjustable spraying mechanism. According to the dust suppression device for the construction site of the constructional engineering, the spraying range can be adjusted according to the situation of the construction site, the adjustable spraying mechanism is arranged, the technical effect of flexible conversion between an omni-directional spraying range mode and a directional spraying range mode is achieved through combination of guiding of a circular track and the elastic effect of a reset spring, and the practicability is high. The spraying height and the spraying range are adjustable through the meshing structure; in addition, a negative pressure adsorption mode is adopted, and large-particle dust on the construction site is treated.

Description

Technical Field

[0001] This invention belongs to the technical field of dust suppression devices, specifically referring to a dust suppression device for construction sites. Background Technology

[0002] Construction sites are a major source of urban air dust pollution. During construction processes such as foundation excavation, earthmoving, material stockpiling, concrete mixing, and construction waste removal, large amounts of dust particles of varying sizes are generated. This dust not only spreads within and around the construction site but also affects a wider area of ​​the atmosphere through air currents, posing a serious threat to the health of construction workers and nearby residents. Therefore, effective dust suppression measures must be implemented promptly at construction sites to keep dust pollution within permissible limits.

[0003] Existing dust suppression devices at construction sites still have the following shortcomings in actual use: 1. Some dust suppression devices use nozzles to spray water onto the construction site, which has the problems of limited functionality and poor adjustment flexibility. It is impossible to adjust the spraying range according to the construction site conditions, resulting in poor dust suppression effect. 2. Some dust suppression devices are unable to collect large dust particles on site. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a dust suppression device for construction sites that allows for adjustable spraying range based on site conditions. The adjustable spray mechanism, guided by a ring rail and aided by a return spring, enables flexible switching between omnidirectional and directional spraying modes. Furthermore, the meshing structure allows for adjustment of both spraying height and range. Additionally, negative pressure adsorption is used to treat large dust particles at the construction site.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The present invention provides a dust suppression device for construction sites, including a base, universal wheels evenly distributed on the lower part of the base, a water tank provided on the base, a power frame assembly provided at the center of the upper part of the base, a dust collection assembly provided on the power frame assembly, and an adjustable spray mechanism sleeved on the outer side of the power frame assembly.

[0006] Furthermore, the power frame assembly includes a deflection motor, a main power telescopic column, a support plate, and a collection box. The deflection motor is embedded in the upper center of the base, and the water tank is arranged around the outside of the deflection motor. The main power telescopic column is located at the output end of the deflection motor. The support plate is horizontally located above the main power telescopic column, and the collection box is located above the support plate with an opening at the top.

[0007] Furthermore, the adjustable spray mechanism includes an electric telescopic plate, an adjusting gear ring, a dual-mode support assembly, and a flip-type spray assembly. The electric telescopic plate is symmetrically arranged at the upper end of the collection box, with the telescopic end of the electric telescopic plate facing downwards. The adjusting gear ring is connected to the telescopic end of the electric telescopic plate and is slidably sleeved on the outer wall of the collection box. The dual-mode support assembly is arranged on a support plate and is movably sleeved on the outside of the collection box. The flip-type spray assembly is arranged in an array along the circumferential direction on the dual-mode support assembly.

[0008] Furthermore, the dual-mode support assembly includes a fixed frame, a ring rail, a deflector, and a movable frame. The fixed frame is vertically mounted on the upper part of the support plate and is located on the outside of the collection box. The fixed frame has an opening on the side away from the collection box. The ring rail passes through the lower end of the fixed frame and is arranged in a circular shape around the outside of the collection box. The deflector is movably mounted on one side of the fixed frame. The movable frames are evenly distributed along the circumference between the fixed frame and the deflector. The ring rail passes through the lower ends of the deflector and the movable frame. The deflector and the movable frame slide on the support plate along the circular trajectory of the ring rail. Return springs are connected between the fixed frame and adjacent movable frames, between multiple sets of movable frames, and between the deflector and adjacent movable frames. The return springs are sleeved on the ring rail. The fixed frame, the deflector, and the movable frame have the same structure and size. The upper ends of the fixed frame, the deflector, and the movable frame are provided with clearance grooves, and the adjusting toothed ring slides within the clearance grooves.

[0009] Preferably, the support plate has a main support column at its center, a movable groove at the bottom of the support plate, and the collection box is fitted onto the main support column. Furthermore, a rotating rod is horizontally connected to the lower end of the actuating frame. The end of the rotating rod away from the actuating frame is rotatably sleeved on the main support column. A actuating gear is provided at the lower part of the rotating rod. The actuating gear is sleeved on the main support column and is located in a movable groove. An adjusting gear is meshed on the side of the actuating gear near the fixed frame. The adjusting gear is driven by an adjusting motor, which is embedded in the main power telescopic column. When the dust area is wide and omnidirectional water mist spraying is required, the moving frame approaches the fixed frame. Under the elastic action of the return spring, multiple sets of moving frames are evenly distributed between the fixed frame and the moving frame, so that the tilting spray assembly is evenly surrounded on the outside of the collection box. When the dust at the construction site is more concentrated and directional water mist spraying is required, the regulating motor starts, driving the regulating gear to rotate, which in turn drives the moving gear meshing with it to rotate, driving the rotating rod to rotate on the main support column. This causes the moving frame to retract towards the fixed frame along the circular trajectory of the ring rail. The movement of the moving frame compresses the return spring. Multiple sets of return springs are compressed by the same amount, which causes multiple sets of moving frames to evenly retract towards each other, making the tilting spray assembly closer together to form a fan-shaped spray area. The spray range of the tilting spray assembly is adjusted according to the dust concentration area by the rotation angle of the rotating rod. At the same time, the deflection motor causes the main force telescopic column and the collection box to drive the retracted tilting spray assembly to turn towards the dust concentration area, realizing the technical effect of flexibly switching between omnidirectional spraying range mode and directional spraying range mode.

[0010] Preferably, a water pump is provided on the upper side wall of the fixed frame, and a water pipe is connected between the water pump and the water tank. A connecting pipe is provided on the upper inner side of the fixed frame, the actuating frame, and the movable frame. The connecting pipe opens on the side away from the collection tank. The connecting pipe inside the fixed frame is connected to the output end of the water pump. Folded hoses are connected between the fixed frame and the adjacent movable frame, between multiple sets of movable frames, and between the actuating frame and the adjacent movable frame. Multiple sets of folded hoses are connected to the connecting pipe. During the movement and adjustment of the fixed frame, the actuating frame, and the movable frame, the folded hoses adaptively extend or retract.

[0011] Furthermore, the tilting spray assembly includes a rotating tooth, a liquid-passing pipe, a spray motor, and a spray column. The rotating tooth is rotatably sleeved on the connecting pipe and meshes with the rack of the adjusting tooth ring. The liquid-passing pipe is connected to the lower part of the rotating tooth and is connected to the connecting pipe through the rotating tooth. A through hole is provided through the outer wall of the liquid-passing pipe. The spray motor is located at the lower end of the liquid-passing pipe. The spray column is rotatably sleeved on the outside of the liquid-passing pipe and is connected to the output end of the spray motor. Spray nozzles are arrayed along the axial direction of the spray column. The spray nozzles are spray-type nozzles that can control the water spray switch. In the initial state, multiple sets of tilting spray assemblies are respectively located inside the fixed frame, the toggle frame, and the moving frame.

[0012] In use, the electric telescopic plate is activated, pushing the adjusting gear ring up and down on the outer wall of the collection box. The rack on the outer side of the adjusting gear ring meshes with the rotating gear, which in turn causes the rotating gear to rotate the liquid pipe. The liquid pipe then causes the spray column to rotate and unfold towards the outside of the collection box, expanding the spray range. When the spray column rotates to a horizontal position, that is, when the spray column is at a 90-degree angle to the outer wall of the collection box, the spray motor starts, causing the spray column to rotate 180 degrees on the outer wall of the liquid pipe, so that the nozzle is pointing downwards. The adjusting gear ring continues to move downwards, continuously causing the spray column to rotate upwards, thus tilting the spray direction of the nozzle towards the outside of the collection box, increasing the spray height, further expanding the spray range, and improving dust suppression efficiency.

[0013] Furthermore, the outer side wall of the main support column is provided with connecting support plates evenly distributed around the circumference of the upper end, the connecting support plates are connected to the inner side wall of the collection box, the outer side wall of the collection box is provided with dust collection grooves evenly distributed around the circumference, and the upper end of the main support column is provided with an exhaust fan, which is located inside the collection box.

[0014] Furthermore, the dust collection assembly includes a dust filter screen, an electric push column, and a pressing push plate. Multiple dust filters are respectively disposed within the dust collection trough. The dust filters are arc-shaped, with their arc surfaces fitting the outer wall of the collection box. The electric push columns are evenly distributed around the outer wall of the main support column. The pressing push plate is vertically disposed at the output end of the electric push column, corresponding to the dust filters. An adsorption pad is provided on the dust filter screen and is disposed within the dust collection trough. The adsorption pad is made of sponge material. Dust-removing cones are evenly distributed on the side of the pressing push plate near the dust filter screen, corresponding to the filter holes on the dust filter screen. The electric push column pushes the pressing push plate closer to the dust filter screen, squeezing the sponge adsorption pad to expel moisture and wash away dust adhering to the outside of the dust filter screen. Simultaneously, the dust-removing cones insert into the filter holes on the dust filter screen to prevent clogging.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. This invention provides a dust suppression device for construction sites, featuring an adjustable spray mechanism. Through the guidance of a ring rail and the elasticity of a return spring, the moving and rotating frames can be dispersed or brought closer together as needed. When multiple moving frames are evenly distributed between the fixed and moving frames, the flipping spray assembly evenly surrounds the outside of the collection box for omnidirectional spraying. When multiple moving frames are evenly brought closer together, the flipping spray assembly forms a fan-shaped spray area for directional spraying, achieving the technical effect of flexibly switching between omnidirectional and directional spraying modes.

[0016] 2. The rotating spray assembly can dynamically adjust the spray range of the spray column according to the dust diffusion range. The degree of rotation of the spray column is adjusted by the adjusting gear ring and rotating gear of the meshing structure. Specifically, when the rotation angle of the spray column is within 90 degrees, the spray column rotates and unfolds towards the outside of the collection box, expanding the spray range. When the rotation angle of the spray column is greater than 90 degrees, the spray motor makes the nozzle rotate downward, and the spray direction of the nozzle is tilted towards the outside of the collection box, increasing the spray height, further expanding the spray range, and improving the dust suppression efficiency.

[0017] 3. A negative pressure adsorption method is adopted, and a dust collection component is set up so that the air containing dust and the water mist containing dust are promptly drawn into the collection box. After being filtered by the dust screen and adsorption pad, it is discharged by the exhaust fan. Large dust particles are intercepted by the dust screen, while the remaining small dust particles and water mist are filtered and adsorbed as they pass through the adsorption pad. Finally, the sponge adsorption pad is squeezed by the squeezing push plate and the dust screen, squeezing out the water in the adsorption pad and washing away the dust adhering to the outside of the dust screen. At the same time, the dust removal cone is inserted into the filter holes of the dust screen to prevent it from clogging. Attached Figure Description

[0018] Figure 1 A schematic diagram of a dust suppression device for construction sites provided by the present invention; Figure 2 This is a structural schematic diagram of the power frame assembly; Figure 3 This is the front view of the power frame assembly; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 A schematic diagram of the combined structure of the support plate, main support column and collection box; Figure 6 A schematic diagram of the combined structure of the main support column, collection box and dust collection assembly; Figure 7 Front view of the adjustable spray mechanism; Figure 8 This is a structural diagram of the dual-mode support component; Figure 9 for Figure 7 Schematic diagram of the cross-sectional structure at point BB; Figure 10 for Figure 9 A magnified schematic diagram of the structure at point C.

[0019] The components include: 1. Base; 2. Casters; 3. Water tank; 4. Power frame assembly; 5. Adjustable spray mechanism; 6. Dust collection assembly; 7. Water pipe; 8. Dual-mode support assembly; 9. Tilting spray assembly; 10. Adjustable gear ring; 11. Electric telescopic plate; 12. Deflection motor; 13. Main power telescopic column; 14. Support plate; 15. Main support column; 16. Collection box; 17. Movable slot; 18. Dust collection slot; 19. Connecting support plate; 20. Exhaust fan; 21. Dust sieve. Filter screen, 22. Adsorption pad, 23. Electric push column, 24. Extrusion push plate, 25. Dust removal cone, 26. Fixing frame, 27. Ring rail, 28. Actuating frame, 29. Return spring, 30. Clearance groove, 31. Water pump, 32. Connecting pipe, 33. Folded hose, 34. Rotating rod, 35. Actuating gear, 36. Adjusting gear, 37. Adjusting motor, 38. Rotating gear, 39. Liquid passage pipe, 40. Moving frame, 41. Spray column, 42. Spray motor, 43. Spray head. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific implementations. Any technical features or connection relationships not described in detail in this invention are all existing technologies.

[0021] The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1-10 As shown, the present invention provides a dust suppression device for construction sites, including a base 1, universal wheels 2 evenly distributed on the lower part of the base 1, a water tank 3 on the base 1, a power frame assembly 4 at the upper center of the base 1, a dust collection assembly 6 on the power frame assembly 4, and an adjustable spray mechanism 5 sleeved on the outer side of the power frame assembly 4.

[0023] The power frame assembly 4 includes a deflection motor 12, which is embedded in the upper center of the base 1. A water tank 3 is arranged around the outside of the deflection motor 12. The output end of the deflection motor 12 is provided with a power telescopic column 13. A support plate 14 is horizontally provided on the upper part of the power telescopic column 13. A main support column 15 is provided at the center of the support plate 14. A movable groove 17 is provided at the lower part of the support plate 14. A collection box 16 is sleeved on the main support column 15. The collection box 16 is located above the support plate 14 and has an opening at the upper end.

[0024] Connecting support plates 19 are evenly distributed around the upper circumference of the outer side wall of the main support column 15. The connecting support plates 19 are connected to the inner side wall of the collection box 16. Dust collection grooves 18 are evenly distributed around the outer side wall of the collection box 16. An exhaust fan 20 is rotatably mounted on the upper end of the main support column 15 and is located inside the collection box 16. The dust collection assembly 6 includes a dust filter screen 21 and an electric push column 23. Multiple dust filters 21 are respectively disposed in the dust collection grooves 18. The dust filters 21 are arc-shaped, and the arc surface of the dust filters 21 fits the outer side wall of the collection box 16. The electric push column 23 is evenly distributed around the outer side wall of the main support column 15. The output end of the electric push column 23... A vertically arranged extrusion pusher plate 24 is provided, which is correspondingly arranged with the dust filter screen 21. The dust filter screen 21 is provided with an adsorption pad 22, which is located in the dust collection trough 18. The adsorption pad 22 is made of sponge material. Dust removal cones 25 are evenly distributed on the side of the extrusion pusher plate 24 near the dust filter screen 21. The dust removal cones 25 correspond to the filter holes on the dust filter screen 21. The electric push column 23 pushes the extrusion pusher plate 24 close to the dust filter screen 21, squeezing the sponge adsorption pad 22, causing the water in the adsorption pad 22 to be squeezed out, washing away the dust adhering to the outside of the dust filter screen 21. At the same time, the dust removal cones 25 are inserted into the filter holes on the dust filter screen 21 to prevent them from clogging.

[0025] The adjustable spray mechanism 5 includes an electric telescopic plate 11, which is symmetrically arranged on the upper end of the collection box 16. The telescopic end of the electric telescopic plate 11 faces downward. The telescopic end of the electric telescopic plate 11 is connected to an adjusting toothed ring 10, which is slidably sleeved on the outer side wall of the collection box 16. A dual-mode support assembly 8 is provided on the support plate 14. The dual-mode support assembly 8 is movably sleeved on the outer side of the collection box 16. A flip-type spray assembly 9 is arranged in an array along the circumferential direction on the dual-mode support assembly 8.

[0026] The dual-mode support assembly 8 includes a fixed frame 26, a toggle frame 28, and a movable frame 40. The fixed frame 26 is vertically mounted on the upper part of the support plate 14 and is located on the outside of the collection box 16. The fixed frame 26 has an opening on the side away from the collection box 16. A ring rail 27 is provided through the lower end of the fixed frame 26 and is arranged in a circular shape around the outside of the collection box 16. The toggle frame 28 is movably mounted on one side of the fixed frame 26. The movable frame 40 is evenly distributed between the fixed frame 26 and the toggle frame 28 along the circumferential direction. The ring rail 27 passes through the toggle frame 28 and the movable frame 40. At the lower end of the frame 40, the actuating frame 28 and the movable frame 40 slide on the support plate 14 along the circular trajectory of the ring rail 27. The fixed frame 26 is connected to the adjacent movable frame 40, the multiple sets of movable frames 40, and the actuating frame 28 is connected to the adjacent movable frame 40. The return spring 29 is sleeved on the ring rail 27. The fixed frame 26, the actuating frame 28 and the movable frame 40 have the same structure and size. The upper end of the fixed frame 26, the actuating frame 28 and the movable frame 40 is provided with a relief groove 30, and the adjusting toothed ring 10 slides in the relief groove 30.

[0027] A rotating rod 34 is horizontally connected to the lower end of the actuating frame 28. The end of the rotating rod 34 away from the actuating frame 28 is rotatably sleeved on the main support column 15. A toggle gear 35 is provided at the lower part of the rotating rod 34. The toggle gear 35 is sleeved on the main support column 15 and is located in the movable groove 17. An adjusting gear 36 is meshed on the side of the toggle gear 35 near the fixed frame 26. The adjusting gear 36 is driven by an adjusting motor 37, which is embedded in the main power telescopic column 13.

[0028] A water pump 31 is provided on the upper side wall of the fixed frame 26. A water pipe 7 is connected between the water pump 31 and the water tank 3. A connecting pipe 32 is provided on the upper inner side of the fixed frame 26, the actuating frame 28 and the movable frame 40. The connecting pipe 32 is open on the side away from the collection box 16. The connecting pipe 32 in the fixed frame 26 is connected to the output end of the water pump 31. Folded hoses 33 are connected between the fixed frame 26 and the adjacent movable frame 40, between multiple sets of movable frames 40, and between the actuating frame 28 and the adjacent movable frame 40. Multiple sets of folded hoses 33 are connected to the connecting pipe 32.

[0029] The flip-type spray assembly 9 includes a rotating tooth 38, which is rotatably sleeved on the connecting pipe 32. The rotating tooth 38 meshes with the rack of the adjusting tooth ring 10. A liquid passage pipe 39 is connected to the lower part of the rotating tooth 38 and is connected to the connecting pipe 32 through the rotating tooth 38. A through hole is provided on the outer wall of the liquid passage pipe 39. A spray motor 42 is provided at the lower end of the liquid passage pipe 39. A spray column 41 is rotatably sleeved on the outer side of the liquid passage pipe 39. The spray column 41 is connected to the output end of the spray motor 42. Spray nozzles 43 are arrayed along the axial direction of the spray column 41. The spray nozzles 43 are spray type nozzles 43, which can control the water spray switch. In the initial state, multiple sets of flip-type spray assemblies 9 are respectively located inside the fixed frame 26, the toggle frame 28, and the moving frame 40.

[0030] Working principle and workflow: In practical use, after the water tank 3 is filled with water, the water pump 31 is connected to the water tank 3 through the water pipe 7, and the device is moved to the construction area through the casters 2. The speed of the exhaust fan 20 and the running interval of the electric push column 23 are set according to the dust content of the construction site.

[0031] When the main power telescopic column 13 is activated, it pushes the collection box 16 upward, allowing the adjustable spray mechanism 5 to rise above the construction site as needed. When the dust area is wide and omnidirectional water mist spraying is required, the actuating frame 28 approaches the fixed frame 26. Under the elastic action of the return spring 29, multiple sets of moving frames 40 are evenly distributed between the fixed frame 26 and the actuating frame 28, so that the flipping spray assembly 9 is evenly wrapped around the outside of the collection box 16, and the folding hose 33 adaptively stretches. When the dust at the construction site is relatively concentrated and directional water mist spraying is required, the adjusting motor 37 is activated, driving the adjusting gear 36 to rotate, which in turn causes the actuating gear 35 meshing with it to rotate, driving the rotating rod 34 to rotate on the main support column 1. The rotating mechanism 5 causes the actuating frame 28 to retract along the circular trajectory of the ring rail 27 towards the fixed frame 26. The movement of the actuating frame 28 compresses the return spring 29. Multiple sets of return springs 29 are compressed by the same amount under compression, thereby causing multiple sets of moving frames 40 to evenly approach and retract towards each other, so that the flip-type spray assembly 9 approaches each other to form a fan-shaped spray area. The spray range of the flip-type spray assembly 9 is adjusted according to the dust concentration range by rotating the rotating rod 34. At the same time, the deflection motor 12 causes the main force telescopic column 13 and the collection box 16 to drive the retracted flip-type spray assembly 9 to turn towards the dust concentration area. During this period, the folding hose 33 adaptively retracts, realizing the technical effect of flexibly switching between omnidirectional spray range mode and directional spray range mode.

[0032] After adjusting the circumferential spray range of the flip-type spray assembly 9, the water pump 31 operates, drawing water from the water tank 3 through the water pipe 7 and filling the circumferentially distributed connecting pipe 32 and folded hose 33. The water then flows into the spray column 41 through the rotating gear 38 and the liquid inlet pipe 39, filling the circumferentially distributed spray column 41 with water. Subsequently, the water mist is controlled by the array of spray nozzles 43 to suppress dust. During this process, the operator can dynamically adjust the spray range of the spray column 41 according to the dust dispersion range. Specifically, the electric telescopic plate 11 is activated to push the adjusting gear ring 10 up and down on the outer wall of the collection box 16, adjusting the gears on the outer side of the adjusting gear ring 10. The rotating gear 38 engages with the rotating tooth 38, causing the rotating tooth 38 to rotate the liquid pipe 39. The liquid pipe 39 then rotates the spray column 41 outwards towards the outside of the collection box 16, expanding the spray range. When the spray column 41 rotates to a horizontal position, that is, when the spray column 41 is at a 90-degree angle to the outer wall of the collection box 16, the spray motor 42 starts, causing the spray column 41 to rotate 180 degrees on the outer wall of the liquid pipe 39, so that the nozzle 43 faces downwards. The adjusting gear ring 10 continues to move downwards, continuously causing the spray column 41 to rotate upwards, thereby tilting the spray direction of the nozzle 43 towards the outside of the collection box 16, increasing the spray height, further expanding the spray range, and improving dust suppression efficiency.

[0033] While the flip-type spray assembly 9 is performing dust suppression, the exhaust fan 20 starts and blows air upwards, creating a negative pressure inside the collection box 16. This allows dusty air and water mist containing dust to be drawn into the collection box 16 in a timely manner. After being filtered by the dust filter screen 21 and the adsorption pad 22, the air is discharged by the exhaust fan 20. Large dust particles are intercepted by the dust filter screen 21, while the remaining small dust particles and water mist are filtered and adsorbed as they pass through the adsorption pad 22. Finally, the electric push column 23 starts, pushing the squeezing push plate 24 towards the dust filter screen 21. The squeezing push plate 24 and the dust filter screen 21 squeeze the sponge adsorption pad 22, squeezing out the water inside the adsorption pad 22 and rinsing the dust adhering to the outside of the dust filter screen 21. At the same time, the dust removal cone 25 is inserted into the filter holes on the dust filter screen 21 to prevent clogging.

[0034] The above is the overall workflow of this invention. Simply repeat this process the next time you use it.

[0035] It is worth noting that the use of the spray nozzle 43 is existing technology and will not be elaborated upon here.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dust suppression device for construction sites, comprising a base (1), the lower part of the base (1) is uniformly provided with universal wheels (2), and a water tank (3) is arranged on the base (1), characterized in that: The upper center of the base (1) is provided with a power frame assembly (4), and the power frame assembly (4) is provided with a dust collection assembly (6); the outer side of the power frame assembly (4) is provided with an adjustable spraying mechanism (5); The power frame assembly (4) comprises a deflection motor (12), a main power telescopic column (13), a support disc (14) and a collection box (16); the deflection motor (12) is embedded in the upper center of the base (1); the water tank (3) is arranged around the outer side of the deflection motor (12); the main power telescopic column (13) is arranged at the output end of the deflection motor (12); the support disc (14) is horizontally arranged at the upper part of the main power telescopic column (13); and the collection box (16) is arranged above the support disc (14). The adjustable spraying mechanism (5) comprises an electric telescopic plate (11), an adjusting tooth ring (10), a double-mode support assembly (8) and a turnover spraying assembly (9); the electric telescopic plate (11) is symmetrically arranged at the upper end of the collection box (16); the adjusting tooth ring (10) is connected to the telescopic end of the electric telescopic plate (11) and is slidably arranged on the outer wall of the collection box (16); the double-mode support assembly (8) is arranged on the support disc (14) and movably arranged on the outer side of the collection box (16); and the turnover spraying assembly (9) is arranged in an array along the circumferential direction on the double-mode support assembly (8).

2. A dust suppression device for construction sites according to claim 1, characterized in that: The double-mode support assembly (8) comprises a fixed frame (26), a ring rail (27), a dialing frame (28) and a moving frame (40); the fixed frame (26) is vertically arranged at the upper part of the support disc (14) and arranged on the outer side of the collection box (16); the fixed frame (26) is provided with an opening on the side away from the collection box (16); the ring rail (27) penetrates the lower end of the fixed frame (26); the ring rail (27) is annularly arranged around the outer side of the collection box (16); the dialing frame (28) is movably arranged on one side of the fixed frame (26); the moving frames (40) are evenly arranged between the fixed frame (26) and the dialing frame (28) along the circumferential direction; the ring rail (27) penetrates the lower end of the dialing frame (28) and the moving frames (40); the dialing frame (28) and the moving frames (40) slide on the support disc (14) along the circular track of the ring rail (27); the fixed frame (26) and the adjacent moving frames (40), the moving frames (40) and the adjacent moving frames (40) and the dialing frame (28) and the adjacent moving frames (40) are respectively connected with return springs (29); and the return springs (29) are arranged on the ring rail (27). The fixed frame (26), the dialing frame (28) and the moving frames (40) are the same in structure and size; the upper ends of the fixed frame (26), the dialing frame (28) and the moving frames (40) are provided with a clearance slot (30); and the adjusting tooth ring (10) slides in the clearance slot (30).

3. A dust suppression apparatus for a construction site according to claim 2, wherein: The center of the support disc (14) is provided with a main support column (15), the lower part of the support disc (14) is provided with a movable groove (17), and the collecting box (16) is sleeved on the main support column (15); The lower end of the dialing frame (28) is horizontally connected with a rotating rod (34), the end of the rotating rod (34) away from the dialing frame (28) is rotatably sleeved on the main support column (15), the lower part of the rotating rod (34) is provided with a dialing gear (35), the dialing gear (35) is sleeved on the main support column (15), the dialing gear (35) is arranged in the movable groove (17), and the side of the dialing gear (35) close to the fixed frame (26) is engaged with an adjusting gear (36), the adjusting gear (36) is driven by an adjusting motor (37), and the adjusting motor (37) is embedded on the main power telescopic column (13).

4. A dust suppression apparatus for a construction site according to claim 3, wherein: The side wall of the fixed frame (26) is provided with a water pump (31) at the upper end, a water pipe (7) is connected between the water pump (31) and the water tank (3), the inner side of the fixed frame (26), the dialing frame (28) and the moving frame (40) is provided with a connecting pipe (32) at the upper end, the connecting pipe (32) is open at the side away from the collecting box (16), the connecting pipe (32) in the fixed frame (26) is connected with the output end of the water pump (31), the fixed frame (26) and the adjacent moving frame (40), a plurality of groups of moving frames (40) and the dialing frame (28) and the adjacent moving frame (40) are connected with a folding hose (33) respectively, and a plurality of groups of folding hoses (33) are connected with the connecting pipe (32) respectively.

5. A dust suppression apparatus for a construction site according to claim 4, wherein: The turnover type spraying assembly (9) comprises a rotating tooth (38), a liquid passing pipe (39), a spraying motor (42) and a spraying column (41), the rotating tooth (38) is rotatably sleeved on the connecting pipe (32), the rotating tooth (38) is engaged with the rack of the adjusting gear ring (10), the liquid passing pipe (39) is connected and arranged at the lower part of the rotating tooth (38), a through hole is formed in the outer wall of the liquid passing pipe (39), the spraying motor (42) is arranged at the lower end of the liquid passing pipe (39), the spraying column (41) is rotatably sleeved on the outer side of the liquid passing pipe (39), the spraying column (41) is connected with the output end of the spraying motor (42), and a plurality of nozzles (43) are arranged in the axial direction of the spraying column (41) and are connected.

6. A dust suppression apparatus for a construction site according to claim 5, wherein: The outer side wall of the main support column (15) is circumferentially and uniformly provided with a connecting support plate (19), the connecting support plate (19) is connected to the inner side wall of the collecting box (16), a dust collecting groove (18) is formed in the outer side wall of the collecting box (16) and is circumferentially and uniformly distributed, and an exhaust fan (20) is rotatably arranged at the upper end of the main support column (15).

7. A dust suppression apparatus for a construction site according to claim 6, wherein: The dust collecting assembly (6) comprises dust screen filters (21), electric push columns (23) and extrusion push plates (24), a plurality of dust screen filters (21) are respectively arranged in the dust collecting grooves (18), the dust screen filters (21) are arranged in an arc shape, the arc surfaces of the dust screen filters (21) are fitted with the outer side walls of the collecting boxes (16), the electric push columns (23) are circumferentially distributed on the outer side walls of the main supporting columns (15), the extrusion push plates (24) are vertically arranged at the output ends of the electric push columns (23), the extrusion push plates (24) are correspondingly arranged with the dust screen filters (21), the dust screen filters (21) are provided with adsorption pads (22), the adsorption pads (22) are arranged in the dust collecting grooves (18), and the extrusion push plates (24) are provided with dust removal sharp cones (25) which are correspondingly arranged with the filter hole positions on the dust screen filters (21) and are distributed on one side of the dust screen filters (21).

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